Display Flying Notes D e f e n c e Av i a t i o n S a f e t y C e n t r e CONTENTS Foreword by Director DASC 3 Chapter 1 – Display Flying & Low Level Aerobatics 4 Chapter 2 – Notes for Display Pilots & Crews 5 Annex A to Chapter 2 – Wind Effect 18 Annex B to Chapter 2 – Pre-Display Preparation 20 Annex C to Chapter 2 – Some Do's and Don'ts 21 Annex D to Chapter 2 – I Learnt About Display Flying From That 23 Annex E to Chapter 2 – The Art of Coarse Display Flying 27 Annex F to Chapter 2 – The Tutor 28 Annex G to Chapter 2 – The Harrier 31 Annex H to Chapter 2 – The Hawk 33 Annex I to Chapter 2 – The Heavies 40 Annex J to Chapter 2 – Helicopters 43 Annex K to Chapter 2 – The Typhoon 47 Annex L to Chapter 2 – The Spitfire & Hurricane 51 Annex M to Chapter 2 – The Tornado 54 Annex N to Chapter 2 – The Tucano 56 Chapter 3 – Supervision 59 Annex A to Chapter 3 – A Personal Overview of Aspects of Display Pilot Supervision – OC 20 Squadron Chapter 4 – Guide to Flying Display Organisation and Administration 63 66 Annex A to Chapter 4 – Display Directors Notes 68 Annex B to Chapter 4 – Flying Control Committees 70 Annex C to Chapter 4 – Crash & Disaster Planning 72 Annex D to Chapter 4 – Military Airshow – Risk Management DASC Guidance 75 Annex E to Chapter 4 – Military Airshow – Risk Management – Framework Document 76 2 FOREWORD Display flying is perhaps the most testing role for any pilot or crew. No one will embark upon a season of displays unless they have already demonstrated high standards of character and flying skill. But success demands more than these qualities, as many people have learnt to their cost. A fair amount of mystique has also built up over the years about display flying and many who are new to the art are reluctant to ask questions. This guide aims to unveil the mystique and answer at least some of the questions. The article was a classic of its type and its content has been updated with experience from recent display pilots and supervisors so that the information remains as valid and fresh now as it was in 1966. • Chapter 3 is a must for the display supervisor and is useful reading for pilots and organisers. • Organising a successful air display can be as demanding in its way as flying a good sequence and there is a great temptation to concentrate on the financial aspects at the expense of the operational and flight safety issues. Chapter 4, therefore, is specifically directed at the display organiser but will also give the pilot or supervisor an idea about organisers’ problems. This edition of the Display Notes incorporates some new material. Please read the notes not only for your information but also to provide feedback to the DASC so that they may be improved; it is mainly with your feedback that we continue to keep them up-to-date and relevant. The notes are published on the DASC internet and intranet websites. They are designed to provide advice to anyone involved in flying displays: display crews, supervisors and organisers. The wealth of experience contained in this booklet was hard won. Read it all and then study in detail the sections that are relevant to you. The general public will inevitably judge the Services partly by your performance at air displays. Displays are an important medium for the Services to project their image and for the general public to judge. Any failures will be magnified. For those of you chosen to represent us in the coming seasons, time spent reading these few pages will not be wasted. Remember, success demands thorough preparation and that fact applies equally to organisers and aircrew. Finally, many thanks to all who have contributed so much valuable material to these notes and please take the time to let us know your views by giving as much feedback as possible. New articles are always welcome. • Chapter 1 should be read by all. • Chapter 2 is essential reading for all display crews and supervisors, and should also be read by display organisers as it contains a host of information that will be useful as background knowledge, particularly if the organiser has not previously been a display pilot or supervisor. The Chapter is loosely based on an article about display flying by Sqn Ldr A J R Doyle AFC RAF (retd) from a 1966 issue of Air Clues. Air Cdre I L Dugmore Director MoD Aviation Regulatory & Safety Group Aug 2007 3 CHAPTER 1 DISPLAY FLYING AND LOW LEVEL AEROBATICS Display flying of any sort requires impeccable standards of airmanship, flying and supervision. Before a pilot displays their aircraft in front of a crowd at an air display, whether that be an International Air Show or a Families Day, they need training, close supervision and thorough briefing. Supervisors must ensure that this is the case. Display Directors have an equally demanding task in co-ordinating the display programme to provide a safe environment for participants and onlookers alike. The Flying Control Committee will assist the Director in ensuring that safety standards are maintained throughout the display. This guide will help all of you involved in display flying to perform your exacting duties. DEFINITION OF A FLYING DISPLAY JSP 551 Vol 2 (Aircraft Post-Crash Management) From JSP 550, P335.000.1: STANAG 3533 (Annex 021A to JSP 550) Flying Displays may be organized to take place on or over Ministry of Defence (MOD) property and are defined as a demonstration of aircraft, parachutists or any flying activity performed to a set program before spectators on a public occasion, including tactical manoeuvres and demonstration of weapons delivery or attack techniques outside a recognized danger area. Authority to conduct a Flying Display at a MOD establishment is to be given by the appropriate Aircraft Operating Authority (AOA). AOAs are to ensure that aircrew participating in Flying Displays, Role Demonstrations and Flypasts are appropriately trained, rehearsed and authorized. JSP 360 (Civil Flying Regulations) Relevant Command Orders Additionally, the following documents should be read by display organisers: JSP 375 Health and Safety CD (2003 edition) Safety, Health, Environment and Fire (SHEF) CONCLUSION RULES AND REGULATIONS It is not possible to sum up display flying in a short paragraph. The display arena can be stressful and demanding on your time and patience. One must make every effort to conduct a professional display with safety as the predominant factor. Thorough planning, preparation and supervision will minimize the risk of an inherently dangerous pastime. In addition to this document there is a mass of information for the potential display pilot, supervisor or organiser. You will need to get familiar with the following rules and regulations: JSP 550 (Military Aviation Policy, Regulations and Directives) JSP 552 (Military Air Traffic Service Regulations) CAP 403 (Flying Displays and Special Events: A Guide to Safety and Administrative Arrangements.) 4 CHAPTER 2 NOTES FOR DISPLAY PILOTS & CREWS Display flying is a very specialised form of flying that should be approached with great caution. It has cost many people their lives. This article gives some personal advice on the many problems that will face a novice to low-level aerobatics. It highlights some of the difficulties and supplies some solutions in the hope that it will lead to a safe and professional display. It has been gleaned from many years of display experience but is not an alternative for common sense or good airmanship. MOTIVES Quality Time. Being a display pilot will certainly mean you are away from home most weekends. If you are married then this will wear thin very quickly. Your partner’s nearest and dearest is defying death every time you display and even if they hate the sight of your ugly mug it is a hard diet to swallow 3 or 4 times a week for nearly half a year. Add to this no Saturday shopping and chronic pre-show nerves and you will soon see that this is a motive for giving up the whole idea! Before embarking on a season of solo aerobatics take a serious look at your principal motivation. This will be the mainstay when the gilt has begun to wear off the gingerbread. There are a number of possible motives that lead to the application for that prestigious display slot, but like many things in life, it tends to look a little different when viewed from the inside. Let us examine a few possible motives with a view to seeing whether they will stand up to the wear and tear of reality. Professional Satisfaction. When your energy flags and things seem to be going against you, this is the one that will carry you through when the others have failed. Glamour. Glamour is often a strong motive for applying, but will soon be overhauled by the other pressures by mid-season. No doubt you will have your hand shaken by visiting celebrities and receive thank-you letters from grateful organisers, but if it is your dream to be cheered by an adulating crowd then you are in for disappointment. Not all the British public are air-minded and it is common knowledge among display pilots that one is constantly competing against the attractions of an ice-cream cornet! GETTING OFF ON THE RIGHT FOOT Your Stn and Sqn Cdrs will need to assess whether the Stn and you can absorb the additional burden before committing to a display season. Will the additional obligations compromise your performance in your basic job? Or disrupt the security of your family unit? You should be harbouring no illusions about the amount of work and commitment that will be involved. Promotion. You know the promotion system as well as the next man. Being selected for the display, perhaps over your peers, will mean you have been assessed as above average. Enduring a display season will show your dedication. However, this is not a back door to the top, but will probably be viewed by the promotion board as the equivalent of a major secondary duty. The decision to display rests with Station/ Squadron concerned and the Groups, who decide how many events/displays their crews are going to perform. The Events Team (ET) will liaise with the singleton pilots/display teams and between them they will draw up an outline program. These programs are ratified at the ET meeting proper in the first 2 months of the new year, following which they are distributed to the crews concerned. The applicants are told of the status of their applications by formal letter from the ET. Excitement. A popular misconception is that something that looks thrilling from the ground must feel so from the cockpit. If you have anything like a worthwhile routine you will be too busy watching the altimeter, ASI and the ‘g’ meter and you will not have time for anything but hard work. If you crave excitement, buy a motorcycle! Having volunteered yourself into the display business, how do you set about preparing for the season ahead? 5 Define the Aim. It sounds corny but its not. You must get clear in your own mind what you are setting out to do. Who exactly, are you aiming your routine at? Before you can design a routine you must decide whom you are performing for. It should be the general members of the public (and our taxpayers) who deserve your attention. You need something that will make as much noise and looks impressive to them. There is no need to be terribly skilful as the general public cannot tell the difference between a stall turn and a wingover. They will be rapturous over a steep turn in full reheat but put their noses right back into the old cornet as soon as the noise stops, ignoring your immaculate 4-point roll. However, beware of completely ignoring technical merit at the expense of artistic impression: air-show enthusiasts are becoming increasingly knowledgeable about the academic quality of a flying display. The professionals, on the other hand, know when you are not really under control and do not want to see the aircraft wheeled around at the edge of its limits. A controlled, professionally flown display is what you should be aiming for. the time. You alone are the best judge to give a consistent analysis of your display. You will need to have your display practices videoed and watch them time and time again. Of course, many people will have viewpoints and if you are getting consistent comments from colleagues about a particular manoeuvre it may well be in need of review. Any unsafe manoeuvres will need to be discussed and modified even if they look the ‘bee’s knees’. BUILDING UP A ROUTINE The most important single factor in deciding your routine will be presentation. However good your aeros may be, they will not be much use if the crowd cannot see them. Another important implication of the presentation is the time factor. With high-speed, high wing-loading aircraft you have got to have a pretty tight routine, or you are only going to get one or two manoeuvres into your 6mins of show time. Rule number one then is keep it close to the field. Rule number 2 is avoid flying straight and level between manoeuvres. This tip was given by a very experienced aerobateur, and it is surprising how much pruning and compressing is required at the beginning of the season to cut out all those little straight bits where you gather a few extra knots, or make up for a wind effect that you had failed to allow for. Know your Boss. This doesn’t mean that you should start asking your Sqn Cdr round to dinner, but that you establish exactly to whom you will be responsible as far as display flying is concerned. Understand your Supervisor’s problems. In most cases you will find that your Wg Cdr or Gp Capt has mixed feelings about having to fulfil an aerobatic commitment. They know from experience that it is going to mean an awful lot of extra work for the whole Stn, with not a great deal to show for it locally. You, as the performer, have their peace of mind in your hands. So be as understanding as you can. As soon as your supervisor realises that your one aim in life is not to rush off and break every rule in the book when their back is turned, the sooner they will trust you. Remember, the regulations have been made for your benefit as well as for the protection of the public. Conversely, if something is suggested which you feel uncomfortable about, whether that be due to you capabilities, experience or another reason, you should express your concerns. You will gain more credibility by saying “This is beyond my current capabilities” than pressing a poor situation and getting things wrong. First of all study the Aircrew Manual limitations, pick the brains of the previous display pilot and, if possible, fly with them or with some other experienced exponent. Get the display limits clearly defined and challenge any anomaly or grey area in any regulations. Remember that you are displaying the aircraft, not performing aesthetic manoeuvres for your own satisfaction. Consider your aircraft’s appeal and its impact on the spectators. Is it noisy/quiet, small/large, fast/slow? Select manoeuvres that show off the aircraft to its best advantage. Assess, query and explore the aircraft handling qualities in various configurations, including with or without stores. The next step is to see how much leeway you have got in time and space. What you want are facts not dreams, so be prepared to go to a certain amount of trouble. Take a piece of paper and draw a line representing the runway, for, as beginners, this will be our reference for the first few weeks of practice. Mark the centre point. Now measure off the runway line, about the centre, the distance your aircraft travels during a slow roll. Since a really slow roll takes about 10 seconds, this distance will be about 1500 yds for 250kts SETTING THE SCENE Peer Pressure. Whatever routine you decide upon you will not please all of the people all of 6 and 2000 yds for 360kts. Remember that this is only the bit where you are actually rolling. It does not include the time required to settle down from the previous turn or wing-over. speed gets near the magic back-side-of-the-dragcurve figure. Now draw out your proposed sequence of manoeuvres making all rolls the appropriate length and all turns not less than the minimum radius. This may seem a lot of trouble but it is no good building on dreams, and it is all too easy to draw wing-overs like Fig 2, when they will actually be flown like Fig 3. Now calculate the radius of the best turn that you can make at low level. This information can be obtained from the ODM. Instantaneous turn rates (Max AoA, usually bleeding speed) will differ from Sustained turn rates, which is the graph to be used. Alternatively, conduct a flight trial by flying a few steep turns at about 1000ft and note what ‘g’ the aircraft can sustain for a full 360 at various speeds. To calculate the radius of the turn substitute these values into the formula below: Level Turn Radius (in ft) = (knots x 1.688)² ÷ (32.2 x load factor (what you see on your ‘g’ meter)) Dream Wing-over Figure 2 Typical results are: Level Turn 250kts 4g radius approx 1400ft /diameter ½ mile. 360kts 5g radius approx 2300ft/diameter ¾ mile. Figure 3 500kts 7g radius approx 3100/diameter one mile. Actual Wing-over In the high performance bracket the sequence almost builds itself as there are only a very limited number of combinations that will fit together without taking you into the next parish. Remember, as you fit your jigsaw together, the finishing speed of one manoeuvre must be the entry speed for the next. Take this radius and draw two turns at each end of the slow roll line. Make one the absolute minimum for getting back onto the roll heading and the other a full reversed turn, beginning at the end of the slow roll. See Fig 1. Whilst considering the practicalities of your manoeuvres you must bear in mind the following guidelines and principles (these are figures for the Hawk but will work for most fast-jet types): Full Reverse Slow Roll Loop will finish ¼ mile beyond the pull-up point. Absolute minimum limit Figure 1. Half Cuban Eight will base out ½ mile beyond the pull-up point. Now you have something concrete to work with. If your mount is to be a Tucano you will find that you have plenty of room to work in. If you are flying something like the Tornado, you will find to your dismay that even the inner (shown dotted) turns, making up the absolute limit pattern, cover an awful lot of the local countryside, let alone the airfield. Half Horizontal Eight will base out ½ mile behind the pull-up point. Do not plan on any straight and level bits - the aircraft must be kept moving the whole time. Try not to have any fill-in manoeuvres such as aileron rolls at this stage - you will need these when the wind is blowing. Wing-overs instead of steep turns help to cut down the diameters, but it is disappointing how little difference it makes in the heavier type of aircraft which lose all their performance once the Aim to keep your sequence simple. Before doing a show you must be able to go through your routine every time without making any big mistakes 7 in positioning, entry speeds and heights. can reel them off and still have 50secs to spare. The opposite happens with the fuel consumption. As you get familiar with the routine you will fly nearer to the limits, and this means more power to overcome the drag. Beware of the temptation to tighten your display as the season progresses. A BALANCED ROUTINE There are many other secondary factors to bear in mind while constructing a sequence, which will make the difference between a good or bad show. Here are a few of them: Safety Gates. All display crews should determine safety gates using experience gained in practice. You will need to calculate gate points for various manoeuvres, particularly for the inverted pullthrough height and the vertical pull-out minimum. Of course, these will vary depending on the display height and your IAS. To calculate the gates find out how much height your loop will take at 5000ft and note the speed over the top. By varying the speed over the top you can work out the variation in pull through height for each advance of speed (typically 100ft extra is required for every extra 10kts increase in speed [within certain parameters], although you will have to experiment with your own aircraft type). Once you have calculated your gate heights you should use pull through heights calculated at 5000ft (added to your base height) when you start practising at 1500ft. Clearly, as the air is now a bit thicker, you will be able to reduce these minima, but by using the 5000ft pull through heights initially you will give yourself opportunity to adjust sensibly as experience is gained. Having refined the figures for 1500ft use these when you descend to 1000ft, and then refine again. Do not refine further when cleared down to 500ft. The difference will be negligible and the extra couple of feet might prove useful one day! However, the situation is further complicated by changes in airfield elevation, temperature and humidity, so don’t shave it to minimums. Even distribution of vertical and horizontal manoeuvres. Obviously it would be unbalanced to have all the rolls first, followed by all the loops. Also, try to keep high when far away from the crowd and low when near. The acid test being, can a spectator keep you in sight throughout the display without craning their necks? Speed and Noise. The distribution of speed can also be important, thus a slow run looks best if preceded by something fast. Noise can be used to good advantage to keep the attention of the spectators when you are furthest from them, just as the sudden silence when throttling back from full power can also be an effective attention-getter. Since you cannot ad-lib these sound effects they must be designed into your sequence from the beginning. Display Straight from Take-Off or Run-in? An experienced display pilot has said that you should not go straight into your sequence from takeoff in your first season. That is probably sound advice but will depend upon the aircraft type. It is a fact that it is much more settling to get airborne, get away from the crowd, and get a measure of the met conditions for the day before running in. This gives you an opportunity for an inverted flight check and triple check the trivial things that could cause a distraction. ‘g’ tolerance would also be assured during a short warm-up routine. However, one significant advantage of taking-off and landing as part of the display is that fuel consumption can be more easily predicted, and timing becomes less critical with the onus being put on the display director’s take-off clearance. As emphasised elsewhere in this Chapter, by getting the entry parameters right you will make the gate heights over the top and in the vertical. With experience you will be able to determine whether you will make the gates by checking at specific places. Therefore, anticipating and loosen or tighten the manoeuvre accordingly. Technique will also have an effect on the pull through height. On the way down, try to get most of the loop completed in the early part of the pull-through so you can be ‘letting-out’ towards base height rather than ‘pulling’ for it (the punters will not notice this). However, do not forget the effect of speed and have a minimum pull-through speed as well as a sensible correction for a speed in excess of the norm. An F4 crashed during a practise for an open-day at RAF Abingdon because the pilot Wind Effect. The effect of wind on a display is subtler than a cursory examination would suggest. The effects of wind on the display are described at Annex A. Limit Manoeuvres. In the early days, despite the fact that your calculations show that you should be getting 8 manoeuvres into 6 minutes, your stopwatch will keep proving you wrong. Do not despair, by the end of July you will find that you 8 extended into wind over the top of a loop, remaining in reheat and accelerating whilst inverted. Despite achieving his gate height he failed to appreciate the effect this extra speed would have on the pull-through and both crew were tragically killed. that your first show will be in limited conditions. Choice of Airframe. In consultation with the engineers, choose 2 or 3 airframes that will have sufficient fatigue hours for the whole season and which will not be taken away for a long period for servicing. In addition, negotiate the cleanest configuration that you can use without resorting to excessive role changes for displays. This will pay dividends with availability, particularly if you take the trouble to explain the reasons. Do not carry snags and always inspect the red lines carefully before accepting the aircraft. It is fundamental to have flown the aircraft before the display to discover any hidden quirks, and it is preferable to do the practice in the same aircraft. Do a careful external and internal inspection paying particular attention to full and free control movement and check for loose articles. Though it is nice to know that you can get round a loop in 3000ft, it is not advisable to make this the standard for your show. There are many things that can upset the best performance of you or the aircraft, so you need to have something in hand to allow for these. The larger the loop the greater the allowance should be. As a rule-of-thumb add 100ft per 1000ft of loop: if your aircraft can loop in 3000ft aim for a gate height of at least 3300ft above base. The audience will not know how high you are over the top and there is no point shaving the limits. Remember, it is not that these things might happen, in the course of a display season they will happen, so be prepared. Authorisation. Once display pilots have been given Public Display Authority by their AOA, delegation of authorisation should follow at the earliest opportunity. Supervisors cannot expect to foresee every eventuality that may occur over a 4-day, 10-sortie period and a blanket authorisation would be ineffective. If a number of displays are being flown over a weekend from different airfields, the weather can alter plans, even change operating bases. Self-authorisation greatly increases flexibility and should be considered a must for all display pilots. Left Hand, Right Hand. If you are operating a heavy, high-performance aircraft you will find that the tight routine necessary to keep you near the airfield makes it surprisingly difficult to change the direction of the show. Build a sequence that is easily reversible. Sequence Card. Do use a sequence card, and have it fixed where you can see it on the instrument panel. The sequence will be firmly engraved on your memory, but for the one (or more!) occasion when your mind suddenly goes blank, you will be glad of it. All the professionals have one. You can also use it to display vital information such as the QFE. PRACTICE Do not under-estimate how early in the year the practice needs to be started. Therefore, diplomatic pressure to start practicing should be applied as early as possible. If able, fly through a sequence with the previous display pilot and learn from their experience. It must be understood by aspiring aerobaters that its primarily their own responsibility to ensure that they get enough practice. Its another thing to know what is enough. Although it does depend to some extent on how demanding your routine is, you are unlikely to get enough practice in one season to get your sequence as perfect as you would like. What then can you settle for as being reasonable? The yardstick is your performance. You must be able to run through the routine consistently without making mistakes big enough to cause you to throw it away. Loops and Derry turns are particularly unforgiving. The ASI must be obeyed absolutely on this score. When practising or displaying, do not ignore small errors; they have a Bad Weather Show. During a European summer there are many days when low cloud prevents vertical manoeuvring. It is not possible just to omit them from your routine as you will not fulfil your slot time, and in many cases you will not have the required energy and position for the subsequent manoeuvre. Therefore, you must design a separate routine for poor weather. In some aircraft types it may be possible to plan one routine that caters for both the fine and the bad weather option. If a separate rolling display is required the same rules of construction apply and a number of extra items can be introduced to fill the gaps. A run with undercarriage and flap down, a second 4 or 8-point roll are popular extras. Having as many similarities to your full display as possible will make it easier to learn. Do not neglect this aspect of preparation, as there is every chance 9 habit of accumulating in the worst sense. When you get out there in front of the crowd nerves will play their part. If you feel distracted or nerves will have a detrimental effect on your performance, do not be tempted to press on regardless; its one of the most common recipes for doom. You must feel happy in what you are doing and the height at which you are doing it. Once you have got your sequence mapped out on paper you can start flying it at 5000ft. Initially, you will find it difficult to link the manoeuvres together and fly them accurately. You will probably need regular timeouts in order to practice individual manoeuvres before performing them sequentially. You will need to know the routine backwards before flying it at low-level. At 5000ft, your sequence will take considerably longer than at low-level. Typically, a 6mins display will take over 7mins at 5000ft. This is due to the increased turning and looping radii and lack of practice and experience at this stage. Do not despair if you have difficulty positioning the display at 5000ft; it becomes easier as altitude decreases. You will also find that your techniques for flying the sequence change. You will rely much more on looking out of the window and less on chasing the altimeter. Continuity is as important as the amount of practice. Today, a laid down minimum number of practices are required before a show. Remember that this is the minimum and make sure they are spread out over a reasonable period, not all done at the last minute to satisfy the book. Do not be brow-beaten into the deception that the abortive 10 minutes you did last Tuesday constituted a full practice. It is your duty to yourself, your Authorising Officer, and your Supervisor to make sure that you are properly prepared. Once you can run through your routine near-perfectly under ideal conditions, the time has come to start simulating a display environment. It is very tempting to continue practising on bright blue days only, up and down your own main runway and feel that you are getting the right sort of preparation. However, it is in your own interest to make sure you get some practice on the limits in the familiar security of your own base environment, happy in the knowledge that you can throw it away if you do not like it. It does not make good sense to practise under the easiest conditions and then go off to perform under more difficult ones. Also, think of all the possibilities when practising. For example, you may not be used to navigating at low-level and, in order to make the exact start time at your display venues, you may need to practise low-level navigation with timings to a specific point. When you are cleared down to a low-level, the presence of the ground will hold a large part of your attention. It will not be as close as it appears at first, but its proximity does not allow for error. You must therefore plan safety into your display from the start. Try to think of possible problems in advance and plan escape manoeuvres (more about these later). Always remember how much height you require to pull through from inverted and vertical attitudes; work out your absolute minimum heights for those manoeuvres and stick to them-irrespective of the pressures to press on. You should also know how to fly an absolute minimum radius turn in your aircraft. However, you should always leave a little in reserve, even when you are practising. The whole sequence should be designed so that it can be flown consistently at just below the aircraft’s ultimate manoeuvre capability. Once you are at display height, treat every practice session as a full display. Give yourself a time on and a time off, and you will eventually be able to stick to ± 5 seconds, provided you always check the surface wind and assess its effects. Occasionally practise at your maximum permissible fuel weight, which will happen if you have more than one display in an afternoon, or if an airfield cannot provide refuelling. You will need to consider, and practice, escape manoeuvres. If you are denied visual references by unexpected cloud, do not sit there hoping; recover while there is time. The most sensitive item is the loop. It is all too easy to find yourself suddenly in cloud where you thought there was none. If you are just going over the top and everything is as planned, and you are certain that you will be in the clear again in a few seconds, then it is safe to continue, provided you maintain the pull. If you have any doubts at all, do not continue the loop. Revert to instruments, once you are over the top ease the pull, roll gently the right way up and find out what the score is, under control. The crowd will be quite happy if you reappear later from an unexpected direction and complete the demonstration. If you cannot get out of the cloud by a reasonable height, thank your stars you did not carry on with the loop, and go home. The attitude indicator can be a help in this sort of emergency, but beware, even the most sophisticated instruments have a nasty habit of toppling when subjected to continuous high ‘g’ turns. Practise these escape loops until you can roll the 10 right way up using a combination of main AI/HUD, the standby, and feel. ble, and it is up to you to make the most of your training periods to acclimatise yourself to these distractions. Overcome your natural inertia and do as many of your practices as possible with one or more of the above limitations built in: a navigation exercise ending up at base at an exact time; a visit to the nearby airfields in your Command, beginning again at an exact time. So, with all that practice there should be no problem when you arrive at your first display venue. Wrong! There are many additional problems that I have tried to summarise below: Pre-show nerves. CRITICISM Navigating at low-level, especially if this is not part of your normal job. Constructive and critical comment is invaluable during your work-up, and if possible during displays too. However, you should insist on having only one mentor and authoriser - with whom you have complete rapport, mutual trust and respect. This is the only way to get consistent criticism based on a proper insight of what you are trying to achieve. Do not be discouraged by criticism though; you must get used to it and learn from it. That said, the most important source of criticism is yourself. Operating at a strange airfield. Some do not even have a runway, which can increase your work-load when adhering to display axes and crowd lines. Non-standard or cluttered R/T. You do not realise how your local Air Traffic spoil you until they are not there. Some places operate on a portable radio brought in for the occasion. There are often few aids and half the other participants are operating on a mixture of hand signals and divine intervention. CREW CO-ORDINATION Timing. You have to be the star of the show before they will run their programme to fit your navigation. Generally speaking, if you are two minutes late you will lose two minutes of your time. In a 2-seat aircraft you must include your WSO right from the beginning. They need to trust you just as much as your boss does, and the 2 of you must work together to develop and polish your display. It is very important that you are firm friends. As for his other qualifications, your WSO must know the aircraft well, be proficient at low-level navigation, be calm and competent in all situations, and qualified in first-line servicing. Naturally, he must also be prepared to work most weekends in the summer as well as putting in extra effort Mondays to Fridays. You will find that such an individual is invaluable in talking you into position, holding you on stage and providing audio information on aircraft performance. For instance, during inverted runs they can make useful advisory calls such as “up”, “up slowly”, “down fast” which will allow you to correct without looking inside. Teamwork means that you know they will always call airspeed or height at a certain point, will have an eye for your fuel state, or will look after the radio for you. Since the WSO is there, make use of them, but get them to tell you what you want and when you want it. Finally, you cannot work effectively as a crew unless you have earned their trust: a display WSO must be absolutely steadfast in their support for the pilot. Fuel. There are many variables during an airshow so you will find yourself operating very close to your fuel margins. Make sure that you never operate below them. Most displays end up running late so it is worth planning to have sufficient fuel for those few extra minutes that you will spend holding off. Weather. Some controlling authorities cancel on the TAF or as soon as the limits are reached. Others like to suck it and see. Do not be tempted to push a display in unfit weather, even if some other participants are. There may well be some pressure to continue from the show organiser, because it is their job to deliver the goods to a fare paying public. They may not argue about half a mile and 800 ft; you must. Performing a flat show in unfit weather, and crashing due to disorientation is far worse than cancelling; blame the weather! If you are already at the hold, an instrument approach past the crowd will show them you have made the effort to get there, even if you cannot display. PHYSICAL FITNESS This list looks formidable, because it is formida- Display flying is extremely fatiguing. One 6 to 11 10min routine can be the equivalent of one normal sortie. Regulations lay down the fatigue limits for display flying but these are the upper limits; you must use both your own and your supervisors sensible judgement to keep within these values. There are no set formulae for how physically fit you need to be, the yardstick is performance. If you can cope with 3 or 4 sessions of 6mins each, at a fairly constant 5g, with a sprinkling of -3g, without losing your precision, then you are fit. The test is to be capable of staying at the top of your form while you are in the air. Remember that it is your neck that you are sticking out and if you are tired you start to make slip-ups that can be fatal. If you are in good physical condition you tire less easily, so do not let fear of ridicule stop you taking exercise if you need it. he flicked off a slow roll”. PREPARATION FOR THE SHOW Paperwork. As usual, display flying is accompanied by its share of paperwork. Every show that you attend will require information. This ranges from planned arrival time, display length, accommodation requirements, fuel requirements, departure details, personal details about you and your crew, facts and figures about the aircraft and its role and a myriad of other items. A good idea is to produce your own fact sheets covering yourself, the display, the aircraft and its role. Get the paperwork (Display Proformae at Chapter 5) out of the way early to ease the mid-season workload. Display Literature. Each set of organisers has a different questionnaire format and the list seems endless. Send full details of your display to the organisers as soon as possible. Not only does this give them more time to progress any special requests that you may have made, but you are also much more likely to get better coverage for your squadron/aircraft/self in the display brochure. Occasionally the display literature will arrive late. If it has not arrived by 7 days before the event you will be forced to find out the necessary details, perhaps by lengthy phone calls. Some displays will attract an excessive number of written Orders and Instructions and you will find yourself reading perhaps 4 sets of Op Orders for one show. However, do not be lulled into thinking that it is all sheer duplication. There will be the inevitable 2% of conflicting or irreconcilable information that will have to be sorted out. Some pilots find it useful to condense all of the relevant material prior to each display and record it in a personal book. Adding detailed comments after each display will allow an interesting picture to be built up over the season and will help with the end of season report. Each person must judge for themselves whether they are fit to fly. Do not under-estimate the effect that feeling rotten can have on your ability to do the job properly. In display flying there is little margin for error. The same applies to the effects of alcohol. You must know the limits and stay within them. Do not be tempted to stay up for one for the road because everyone else is; they may have already cancelled or be with the spare aircraft or static display! Never drink on a forecast. To round this off, do not display or practice if you are tired, unwell or under the effects of alcohol. This is when mistakes can, and do, occur. In the arena of low-level aerobatics even a comparatively simple mistake can be fatal. STRESS All flying, particularly military flying, imposes a degree of stress upon the crew. How much stress is involved on any given sortie depends on a number of well-known factors such as weather and sortie content. However, there is an extra source of stress which is peculiar to display flying: the distracting effect of the crowd. Even the coolest of operators will probably feel a little nervous when performing in front of a large crowd, and their performance will be affected in relation to the nature of the event and according to their individual temperament and display experience. Nervousness may result in a slightly less polished performance than normal; at worst it could cause an accident. The shame is that it is usually the most elementary mistakes that produce the disaster: when an onlooker would say “Fancy pulling through from there” or “How come Site Photos. Order a set of site photos from JARIC asking for the same format as the Red Arrows or consider using a commercial web based mapping and image site. Be careful to specify the LAT/LONG of the display site (you will need to check with the organisers). At some of the unusual sites such as Buchan and Boulmer, it may not be coincident with the radar head or domestic site. Establish the exact display datum and line with the organiser and prepare a 1:50 000 Site Map marked with your different axes and headings. You can then transfer this information to the site photograph. 12 Public Relations. Plan ahead for PR. Produce a script early in the season that includes a description of the display and aircraft, and a bibliography of yourself. This saves embarrassing misquotes and incorrect publicity. Try to persuade your photo section to produce a host of small pictures of your aircraft. You will always meet enthusiasts who will treasure such a photograph autographed in their presence. Above all, liase closely with DCC and Cmd CC to maximise PR opportunities. ity of the show. Advice on these reports can be obtained through RAFAT or P&SS Rudloe Manor. Pre-show Visit. If at all possible visit the display airfield before the display. Check suitability of runways, grass areas (if applicable), and other landing surfaces (eg Mexe pads). At small sites you will need to ensure that the fire/ambulance cover is adequate and that spectator clearances are correct including aircraft guarding arrangements. Consider the birdstrike hazard on the airfield and ascertain the NOTAMed height of the display. If you have more than one display during a day you will need to liase with the organisers to establish different slot times with a suitable gap between displays. Aircraft Servicing. Make sure that you are conversant and qualified to perform the A/F, B/F and turn-rounds. If possible take supporting ground crew to relieve you of the tiring business of servicing the aircraft on an unfamiliar airfield, especially if it is complicated. This will also ensure that the work is done to the highest possible standard with on-the-spot expertise available to rectify minor snags. This policy is of course expensive but it can contribute quite a lot towards ensuring that you have a trouble-free season. It also involves the ground crew in a prestigious activity. Of course, if you are accompanied by a spare aircraft, the crew can help with servicing matters. Practice. Perform your routine at least once in the week before the display. Tailor your practice to the shape size/layout of the display airfield. Fly the display aircraft if possible. Met. Make sure you have made arrangements to get met information, especially at weekends. Timing. It is essential that display timings are adequate for your needs. If you are doing two or more shows in one day, ensure that sufficient spare time is built into the transits to cater for the unexpected: tight timings inevitably involve short cuts and changed plans which increase the possibility of mistakes. Plan your fuel and know your hold-off capability. Ensure that you always have some fuel in-hand to cater for last-minute requests to hold. Final flight planning on the day will require an early start. Always check the latest state of the programme with the Display Coordinator with a display time check to synchronise with your own. Add all of the variables to the basic plan and check the weather. Remember that in deteriorating weather you will have to allow for a different time en route if you wish to use ATC; moreover, the programme timing may also change. In such conditions it is as well to ask your own ATC to keep in touch with the display so that they can pass changes to you direct.Planning forward from your operations room, make up a knee pad with the details shown in Fig 4. Pre-Display Preparation. As soon as you receive tasking instructions Refer to Annex B. Detailed Planning. Detailed preparation for each show must be thorough and should follow a pattern so that nothing is missed. You must plan everything thoroughly including your recovery and transit maps. Prepare maps of the run-in to your start point, marking the time in minutes and seconds at outstanding features to give you an exact on-show time. Choose a convenient holding point about 12 miles along the extended centre-line, something nice and easy to see in poor weather, and plan the rest of your trip to this point (of course the holding point may have been preselected by the display organisers). On an gin clear day you will wonder if the planning was all worth it, but come the day of an unexpected front, or a contrary shift in the wind bringing industrial haze, you will be very grateful for that extra halfhour spent the night before. As mentioned earlier, plan a 1:50 000 map with axes and headings and transfer to a site photograph if possible. The Red Arrows can be a useful source of information. The team leader and the synchro leader both do extensive preparation which they will share with you. Additionally a P&SS report, prepared for the RAFAT, contains a great deal of useful information on obstacles and sensitive areas within the vicin- Eng Start 1415 C/S TOR 06 Taxi 1419 RT Hold 282.6 T/O 1426 Display 321.4 (Stud 6) En Route 12 mins Run in Hdg 240° Display on 1438 Local QFE 1005 Display off 1444 Figure 4. 13 Stopwatch. One tip that may ease the airborne calculating process is to take an accurate time check into the cockpit just before a whole hour comes around. Then start the cockpit stopwatch exactly on the hour. However, you must ensure first that no one will subsequently tamper with the watch and that it will run accurately until the time of your cue. One pilot who arrived at datum at the same time as a four-ship discovered that his watch had gained 1 minute 10 seconds in the previous hour! loop! In a high performance aircraft you will use a lot more fuel on a hot summer afternoon than on a cold spring morning, so be prepared. Fuel may be offered to you from an unmarked bowser. Make sure that it is right for your machine. Temperatures. When operating heavy aircraft at low speed and high angles of attack, you are relying very extensively on thrust to keep you flying. At high temperatures your engine power is reduced and this can cause considerable embarrassment if you go into your routine without allowing for it. Particular care should be taken when going to air shows abroad where the afternoon temperatures can reach figures quite uncommon in the UK. THE SHOW Planning. An air-show may be counted as a success when you arrive exactly on time, perform your chosen sequence of manoeuvres without error in exactly the right part of the sky, and depart in good order exactly on time. Note that arrival back at base is not included as a necessary ingredient for a good display. If, however, you hope to be anything more than a one-day wonder you had better make some arrangements on that score. Although luck, determination, skill, etc, all play their parts the secret of success is detailed preparation. If you fail to fulfil the requirements listed above because of something that you could have anticipated, then it is your fault. Excuses may or may not satisfy the display committee but they should not satisfy you. The chance to do low-level display aeros should be a highlight in your flying career, so surely it is worth a little extra effort to ensure that each of the displays you fly is as perfect as you can make it. Ask anyone who has done any motor racing or rallying and they will tell you the same thing. It is the well prepared teams that come out on top. Functional Test. Try to make it a rule never to start a display without first giving your aircraft a quick functional test. The exception will be when you are starting the show from take-off. Climb to a safe height - say 6 or 7 thousand feet, and check the engine acceleration up to full power, and reheat lighting if applicable; pull your maximum permitted ‘g’ and do a short inverted run. Getting There. Although most displays have some sort of arrangement for giving you an Air Traffic approach to the airfield, it is more reliable to get into the habit of making your own way VMC, visual with the ground. That way you will not be let down suddenly because the system, which can be pretty chaotic at some shows, breaks down. Remember that map reading is a skill and needs regular practice. If the distance from your operating base is too great to manage the whole trip at low-level and the weather prevents you map reading at height, do a let-down at the nearest convenient airfield, with plenty of time in hand, and go VMC from there. If the weather is good enough to do a display then it is good enough to map read at low-level. By the time you arrive in the display area you will be thoroughly accustomed to the look of the ground under the current conditions. This is an important point as it can be dangerously disorientating to pop out of cloud for the first time in 10 minutes and find that you are 20 seconds to pull-up with no horizon, poor visibility and an indeterminate cloud base. However, on transit to the display airfield remember that weekend flying is marked by a profusion of gliders and light aircraft, so give glider sites and minor airfields a wide berth. Plan to fly outside the general aviation dominated height bands; below 1000ft or above 3000ft would be sensible depending on your aircraft type and authorisa- Fuel. The actual fuel state during the display will be dictated by the distance you have to recover afterwards. The lower the fuel weight the better your aircraft will perform and it is well worth investigating the possibilities of only partially fuelling when going straight into a show from take-off. If you run yourself too short you will be distracted by worrying about your safe recovery; on the other hand too much fuel can seriously limit the aircraft’s performance. During the preseason practices increase the fuel weight on each sortie until you reach the highest weight at which you are happy with the aircraft’s performance and handling. Having done this, never exceed this figure and reduce it in hot weather. Never start a show at a fuel state that you have not previously practised at. Several pilots have received a nasty shock at the bottom of the first heavy weight 14 tion. This is a good opportunity to check the aircraft for serviceability. Make a point of doing an inverted flight check at (a safe height!) some time during the transit. briefing in plenty of time. If you are too early you can always grab a coffee and wait; if you are late you will miss something. Listen carefully to the entire brief: has your slot time changed and become unworkable? Get the latest winds. Confirm that ATC frequencies have not changed; sometimes the published frequencies for a station are altered for the duration of the flying programme. If it is a civil display the briefing might not be quite what you are used to and you may have to ask for particular facilities, for instance clearance to take-off into wind! Look for potential hazards in timing or positioning and make your views known - for nobody else will. You might find, for example, that a civilian joyride aircraft is planned to fly close to your display. Do not let this happen if you are not absolutely happy about it, as you cannot afford to fly a display with any unnecessary distractions. The Display Director will often ask you to be ready to take the slot ahead of you in case of a fall-out. Therefore, it is useful to chat to the participants who appear on either side of you on the programme. It is advantageous to arrive the day before a display for several reasons. You get to see the display area and are able to think about your display orientation. You can iron out any minor problems with organisers and, last but not least, you actually get there! Nothing is more frustrating than having a CAVOK met report from the show venue when you have 8/8 clag at base, or have to negotiate an active front en route, etc. The Airfield Itself. If any display airfield is not known to you, have a careful check of the En Route Supplement, 1:50,000 maps, the Op Order and its Annexes. If you are pre-positioning, aim to fly an arrival practice if you can get authorisation and clearance. Even a normal join, circuit and overshoot will allow you to get to know the place and note such things as pylons, wires and tall aerials which may infringe on your safety margins. If your aircraft is one of the types that is capable of operating into small club fields, beware the fact that they are unlike any RAF aerodrome. Plan your arrival cautiously: such runways are normally short, made of various materials, have dubious approach and overshoot areas, and sometimes slope dramatically. Special hints appear later in this booklet for helicopter and Harrier pilots who may be called upon to perform displays at such sites. Brief Your Support Personnel. Once you are satisfied, fully brief your support personnel. Check that they know what time to arrive at the aircraft, again give yourself plenty of time. Do not get in a situation where you have to rush checks and risk missing something. FOD and Insects. Take care to have the intake and jet pipe covers fitted until shortly before start up. Before flying, take extra time over your preflight inspection, particularly if your aircraft has been parked outside or has been in the static display. Make sure that the windscreen is clear before you start. Summer insects and dirt on the windscreen can easily impair forward vision, especially if you’re on the programme late in the afternoon and the sun is low in haze. After You Have Arrived. Make sure that you are absolutely satisfied with the parking and taxiing arrangements at the display airfield. Aircraft are quite likely to be parked closer than normal and adjacent light aircraft are in danger of being blown over when you taxi. So exercise extreme caution, particularly when members of the public are nearby; many seem unaware that jet efflux is hot, fast-moving and may contain stones. Some parking areas at displays are covered in FOD and demand extreme caution. A large crowd also means a large litter problem so if aircraft are parked near the crowd barrier there is a very real danger that litter will get sucked into the engines. For similar reasons you should avoid being parked near to helicopters - unless you are flying one! Balloons sold at displays may also represent a hazard to your aircraft, in which case do not hesitate to make the point to the organisers. Positioning. Having arrived at the right airfield at the right time you now want to be sure that you present the display to the best possible advantage. Do take the trouble to find where the crowd centre is. The public could well be sequestered in a small enclosure at one end of the field and at a sharp angle to the main runway. If the display organisers do not send you a plan of their airfield with all the relevant details marked on it, ring them up and find out. The terminal approach procedure charts give a plan of most of the airfields that you are likely to visit, and photographs are invaluable for giving some idea of what to expect when you arrive at an airfield for the first time. Display Briefing. Ensure you get to the display 15 Run-In Check List. It is also well worth preparing a personal pre-run-in check list to cover such items as fuel balance, angle of attack gauges, loose articles/pockets, engines, altimeter setting, etc. The content of any such list will be dictated by your aircraft type and style of display, but could save you from omitting something important when the danger of distraction is highest. It is recommended to deselect guard and turn off the radio not in use. Also ensure that your harness is suitably set, especially if your sequence involves negative ‘g’. of vision at the most awkward moments. The only provision you can make is to speak to the organisers beforehand and form a robust deconfliction plan. You may require the circuit to be completely clear from one minute before your display until one minute after. Since private pilots’ airmanship, radio procedures and discipline may not always be as one would expect, the lesson is to fly defensively. Mental Preparation. Until the process has become second nature to you, you should consciously aim to achieve the best possible mental and physical state prior to your display. The following points are all old hat but are worth repeating: Wind. Since the wind can have such a vital effect on your positioning, it is most important to have the latest surface wind at the display airfield interpreted into terms of two components: across and along the display line. Knowing how the surface wind compares to the forecast 2000ft wind may also be of benefit. Consider turbulence if the wind is gusty; it can have a marked effect on all aircraft types particularly on the slow speed and formation manoeuvres. Get a good night’s sleep with little or no alcohol the evening before. Plan to do nothing demanding prior to the display. Always give yourself more time than you think you need for turn-rounds, pre-flight preparation or checking. Air Traffic Control. Air Traffic Control at air shows can be excellent, but can also be appalling. The only safe moral is to treat all information as highly suspicious until proved reliable. Make a personal telephone call to the operations officer or his civilian counterpart as near to your takeoff time as possible. Agree on the plan of action, even if it is only confirming the original schedule, and then inform him that if there is any R/T confusion you will stick to this plan. From then on you treat the R/T as though it was confused, and try and confine your communications to brief unequivocal statements of what you are about to do. If something really important comes up they will soon let you know. This may sound a bit severe, but there is a tendency for both controllers and exhibitors alike to play things off-the-cuff once a show has got under way and one method to avoid ending up in the circuit at the same time as the previous item is to make your own arrival seem as inevitable as possible. Go out to the aircraft earlier than normal and plan to have an extra 10mins in the cockpit prior to engine start. Once in the aircraft, do the full checks methodically. Start-up in good time so that you can swap aircraft without rushing too much. Because there are manifold distractions you must exercise exaggerated care with all checks. Think the whole display through before take-off. Learn to control your emotions before, during and after a display. If things do not go smoothly prior to the display you are likely to become irritated. There is always a natural tendency to become keyed up, so avoid being rushed. On the other hand, there can be a tremendous feeling of elation when taxiing in after a good display and this sensation must be controlled because it has caused pilots in the past to make uncharacteristic errors. Other Aircraft. However careful the organisers are, there will always be a number of light aircraft swanning about, sometimes without R/T, either in the show or giving joy rides. They have every right to be there and in many ways it is probably more their show than yours. However, it is obvious that some of these pilots do not fully appreciate the implications of 15 tons of screaming aluminium doing better than 600kts at low-level, and their cloth taxis are inclined to swim into your field Pressures. Ensure that you have the right millibar setting on the altimeter. Flying a display on QNH instead of QFE could have disastrous consequences. Some overseas shows may require QNH to be set due to high elevation. Ensure 16 your preparation is thorough: calculate the gate heights to include elevation and the corresponding increase in turn radius/reduction in turn performance. A USAF F16 from the Thunderbirds crashed in 2003 at Ohio due to a miscalculated gate height; and QNH operations are the norm for them! is no way of being completely undisturbed by the innumerable distractions that are present at an Air-show, so the answer is to evolve a steady routine for displays and stick to it. Treble check everything, because you can rest assured that if your IQ is normally halved whenever you close the canopy, it will be reduced almost to zero on the day of the show. The Big Moment. As your display time approaches, re-check all the details. Some of the larger shows, IAT for example, have several hours of flying planned and things can change during the day. It is not unknown for things to change even after take-off so be prepared for anything! Analyse the real wind now that you are flying, look at the crowd line and display line and plan to fly just as you have practised. DO NOT get tempted to modify your display dramatically to adapt to local conditions or inputs, and if you are not happy, land. At worst, no one will know whether you really did or did not have a minor problem, but everyone will know if you press on and muck it up. CONCLUSION All of the advice above may seem daunting, but most of it is common sense. As a military display crew you are a representative of the service, and the general public will to some extent, judge us all on your performance. We would like them to think that we are responsible professional pilots, so act accordingly. Finally then, do not be satisfied with less than your best. Do not be too quick to take other people’s advice, but never scorn to learn from their experience. Determine to be your own severest critic; then, when you put your trust in your own judgement, it will be well placed. By way of a summary, a list of dos and don’ts is contained at Annex C. Phew! Finally, you have flown your sequence to perfection and the crowd loved it and you are feeling great. Do not relax. Someone else is just starting his run-in and wants you out of the way. Fly your planned departure and be on the lookout for things that have moved since you got airborne. Accidents can, and have happened whilst aircraft (especially helicopters) are taxiing. Once you have shut down you can relax. Departing for Home Base. On leaving the show site do not be tempted to do anything silly - I know you wouldn’t, but others have! Leave sensibly, get back to base and tell the Boss how great it all was and how much you are looking forward to the next one. If leaving the day after the show, watch out for the day after display syndrome. You may have another display to go to, but yesterday’s show organisers will have lost any sense of urgency they might have had the day before. This last comment applies to everyone, not just engineering support personnel. Double Effort and Treble Check. At the end of the day, the great deal of effort that you have put in should have paid off. Do not allow yourself to think that because one show has gone well that the rest are in the bag. Each show has its own problems, and unless you prepare for the worst you could become unstuck. Distraction is possibly the biggest hazard that you will meet. There 17 ANNEX A TO CHAP 2 WIND EFFECT it is important to compensate. To illustrate this point, Fig 1 shows the effect of a 30 kt wind on a representative steep turn through 360 at 360 kts. The wind has a vast effect on your show and must be catered for. It is quite complex to write about but much simpler in practice. To simplify the problem, divide the wind into two components, one along the display line from left to right, and the other at right angles to it, either on-crowd or off-crowd. Now let us study the effect of these components on the various types of manoeuvre. Note the drift is equal to a quarter of the diameter, not the sort of thing that can be ignored. In all cases the technique is the same: ease the back pressure whenever the aircraft is pointing into wind (if you keep the bank on as much as possible the spectators will hardly be aware of what you are doing) and crank round as hard as possible as you turn downwind. The increase in speed that results from easing the turn can be used to get a temporary increase in turning performance as the wind swings round to your rear. It is good practice to over-correct all the time as this puts you in a better position for the next manoeuvre. The easiest to deal with is the off-crowd wind as you are playing the turn in the second half when the crowd line is in view. The hardest is the on-crowd component as you have your back to your reference during the vital moments and are committed once you get the crowd back in view again. It is in this situation that over-allowance pays off. When rolling into wind the distance covered will be shortened, so you will have to start a bit later and roll more slowly than normal. If it is downwind then the effect is reversed and the roll must be started early and hurried slightly. Unfortunately, one aggravates the other, for if you finish the intowind roll early, which tends to put your wing-over too close to the crowd; you are then faced with a downwind roll which, if anything, you wanted to start further away, not closer. The net result is that your show begins to drift away downwind, and you cannot rescue it once it has gone without an ignominious straight leg while you steam against the current in an effort to make up for lost ground. A Wind B 2X° A word of warning here: X° NEVER, NEVER BE TEMPTED TO USE GROUND REFERENCE POINTS, OTHER THAN THE CROWD FRONT, IN PRACTICE. The correction on the way up C D They will do you no good at all when you arrive in the Little Muddlecome circuit for the first time in your life. You must train yourself to work on a crowd front only. 2X° Figure 1 Cases 4a and 4b apply to the looping manoeuvres with the wind blowing in the same plane as the loop. The effect is more pronounced with the wind behind you as the tendency is to gain ground in a loop anyway. Under these circumstances it is almost impossible to make a round loop and the only way to maintain your positioning is to accept this and pull up really early. The wind continues to affect you in the turns and wing-overs, and since you spend three times as long in a full turnabout as you do in a slow roll The effect of the on-/off-crowd wind component on loops done along the crowd line, ie at right angles to the loop, needs special consideration as X° Over the top, still tracking correctly Second correction on the way down 18 will be seen from the following analysis (see Fig 2). A Wind B get to the pullout you will be right over the heads of the crowd. The same applies for a loop or half loop begun off the end of a slow roll, in which the drift has been laid off. The only place that you can change that 10 so that it is still acting in your favour is when you are vertical. 2X° X° The technique, then, for a crosswind loop is this: lay off the drift on the run in to keep you tracking along your line. As you approach the vertical, roll quickly through at least twice the number of degrees that you laid off in the pull-up, towards the direction that the wind is coming from. Continue the loop and, as you come through the vertical again, roll back to the original angle. This will probably be done instinctively as the crowd line will be in view. The bigger your loop, the more trouble you must take over this correction. The correction on the way up C D 2X° X° Over the top, still tracking correctly Laid out step by step it sounds a bit complicated but once you have tried it out in practice you will find yourself doing it automatically. The usual fault is to make the corrections too small, with the result that on each manoeuvre the downwind drift accumulates until eventually you have to put in a straight leg to recover. The secret is little and often, with a strong bias in favour of overdoing it, for you will never have any difficulty in losing a little ground if you do get too far upwind. Second correction on the way down Figure 2. Imagine that you are about to pull up for a loop with the wind blowing from your right. You lay off 10 to the right to keep on the centre line as you pull up. As soon as you get past the vertical that 10 is corkscrewing you in the wrong direction, that is, it is increasing the drift effect! By the time you 19 ANNEX B TO CHAP 2 PRE-DISPLAY PREPARATION These items should be attended to as soon as you receive tasking instructions for a display: find a friendly pilot/crew to take the spare aircraft and to look after the trivia. As this initial planning approaches the definitive stage, you will need to tee up a good deal of local administration to ensure that the necessary support is provided for your single aeroplane plus spare. If nothing else, this effort serves to remind you that you are not the only person who is losing his weekend. Passports and inoculations if necessary. Accommodation - book early to avoid frustration, and do not accept a shared room, as it will normally mean a poor night’s sleep. Also watch out for accommodation booked at excessive distances from the airfield; it can lead to long road journeys, extended delays whilst you wait for other crews to complete their day, and unnecessarily early rises in the morning. Arrange with your squadron engineers for the aircraft, fuel and spare aircraft to be ready in the right configuration at agreed times. Ensure that the squadron programmers know your requirements. Book the airfield opening time with Ops. Find out exactly where the proposed crowd line is and ensure that it meets safety criteria - small civilian airfields can be particularly lax about this. Book a met briefing. Arrange diversions for the route. Carriage of kit, spares etc. Check the display frequency and pre-stud it/ them. Dialling in a new frequency at 600 kts and half a mile out is an unnecessary distraction. Time of arrival and departure, planned diversions, meals, fuel, parking, ground equipment ... these are some of the domestic points to discuss. Exercise Public Relations with: Is there to be a rehearsal, or can you have a private one? Engineers Security of the aircraft is vital, and the organisers must have made adequate arrangements for roping off and guarding. It is not unknown for spectators to throw bottle tops into intakes or even take bits for souvenenirs. Operations Engineering support? Remember that your ground crew will probably appreciate being put on show occasionally as compensation for all their efforts during the season. ATC Fire Section Met Medical Operating Base 20 ANNEX C TO CHAP 2 SOME DOs AND DO NOTs By way of a summary, here is a list of some Dos and Do nots: Do not be afraid to ask for advice: better to profit from someone else’s experience than to learn the hard way. Do get the sequence properly planned before you start - you are wasting valuable time otherwise. Do not be worried by ‘crewroom criticism’ Do de-brief thoroughly - preferably with the same person and using a display chart Do not fly with a hangover. Do not deliberately fly into cloud. Do read all of the rules and limitations produced by the display organiser and attend their briefing if possible; otherwise study a map or photograph of the display area and get a telephone briefing. Do not overstress the aircraft Do not change your sequence. You will be asked to ‘fill in time’ but resist the temptation. Do try to arrange a practice over the display site. Do not be tempted to fly just that little bit nearer to the limits. Do know the aeroplane - know exactly what to do if something goes wrong during a critical period of a manoeuvre. Think out contingencies for all stages of the display to cover engine malfunctions, system failure, instrument malfunctions. Do not fly below your briefed minimum height Do not enter into competition with the other display pilots. Do talk to the display organisers and make your requirements clear. Do not tighten up your display on the day. This can be a temptation especially over a small display area - succumb and you will disturb your sequence and affect your timing. Do get to bed sober and on time - even though everyone wants to host you. Do check the flying programme carefully for conflictions-Zulu or Alpha time? Do not assume the wing over is a routine positioning manoeuvre. It has no gate heights and is potentially as fatal as any aerobatic manoeuvre. Do prepare yourself mentally - visualise the whole sequence by studying a large-scale map. Do not improvise on your sequence by adding unpractised manoeuvres. This can be tempting if you have time left at the end of your display slot. If your sequence goes wrong, do not take a chance on entering a manoeuvre with insufficient speed. Do check the wind - it has a considerable effect. Do remember your PINS. Do go through your personal check-list before running in and always include a check of the altimeter setting. Do not attempt your good weather sequence in marginal weather. Stick to your weather limitations. Do fly within your own capability. Do not squeeze your sequence up too close to the crowd line; spectators prefer to look up at about 45°, not 60° to 90°. Do stick rigidly to your weather minima. Do perform your display EXACTLY AS PRACTISED WITH NO AD LIBS. It is very natural to feel rushed - try not to be. Do not get sucked in by the Barnstorming atmosphere that you will sense at some shows. 21 Do not try to emulate the performance of those who have great skill but set a poor example. You are a professional military pilot, and while you are on display, the reputation of the Service rests on your shoulders. This may seem to be a forbidding list of Dos and Do Nots, and indeed there are a considerable number of rules associated with display flying. The degree of control imposed on the individual may appear stifling to any young blood starting the display game, but this close supervision has necessarily evolved from bitter experience over the years. The risks are high but are minimised by full preparation and mature, responsible attitude. Display flying presents a deeply satisfying physical and mental challenge, but you can rest assured that it is also enormous fun. Do not fly a farewell beat-up. They are dangerous and the crowd will have gone home anyway. When you get back on the ground, do watch the rest of the display and learn from others. Resolve to do it better next time, and expect by mid-season to have got it nearly right! Remember that the responsibility you bear to the Service does not end when you land. 22 ANNEX D TO CHAP 2 I LEARNT ABOUT DISPLAY FLYING FROM THAT PRIDE PRECEDES THAT SINKING FEELING off - on time of course - and ran in for my display on cue. Then the problem started. I didn’t seem to be getting enough power. At that stage in the turn I should have been throttling back the reheat to maintain 350 kts but I barely had 300! Both donks showed full reheat. Agh, the blasted airbrakes were out! With no time to wonder why they had come out I selected in, got my 350 kts just in time, cancelled reheat and went smoothly into a roll for an inverted pass. The nose dropped alarmingly and I had to shove the stick hard forward against the stop to prevent a further descent. You’ve guessed it, the airbrakes had come out again! I completed the inverted pass, rolled upright, selected airbrakes in and decided to cut out any further rolling manoeuvres. That nose-slice had really scared me! That meant no Derry turn and no slow roll. You can well imagine the comments after I landed. Some years ago I was a Lightning OCU instructor and about to become one of the unit’s official aerobatic display pilots. This was in the good old days when almost every station had its own resident display pilot. Shortly before the start of the season one such station decided to give up its display commitment because of a spate of fuel leaks brought on by too much g. This meant that the displays previously allocated to that unit were passed around the rest of the Group’s display pilots. It so happened that I was allocated the first of these commitments - as my first ever show. The display, which was midweek, was for a group of visiting foreign dignitaries and was to be flown at the home base of the unit that had withdrawn. Still, the situation was not beyond redemption. The airbrake solenoid was changed, and I was to operate from this base for a display at a nearby GCI site 2 days later. I had already been authorised for a practice at the GCI on the intervening day, but I felt the need to save face so rang my boss at the OCU and poured out my tale of woe. He promptly gave me permission for another practice at my host Station under the supervision of their ex-display pilot’s commander. I arrived on the afternoon preceding the display, having arranged with my supervisor and with the host station that an “arrival display” would be in order; this was to be the only chance I would have to practise at this airfield - which I had never visited before. All went smoothly enough, although I had to cut short because of fuel shortage. When I got to the crewroom, however, I could immediately sense the atmosphere. As plainly as if the words had been spoken aloud, I could hear everyone saying things like: The following day dawned bright and clear with blue sky, a slight off-wind: in short, perfect display weather. Pre-flight preparation was faultless. I had briefed with my supervisor, cleared the display time with Wing Ops and Air Traffic, and the ground crew had prepared the aircraft to my requirements with the ventral tank empty, wing and flap tanks full giving 2,600 lbs per side. “So this is the blue-eyed whiz kid that’s doing our displays for us” and “I wasn’t too impressed with his arrival show, our man was much better than that” As I was starting up I noticed a Canberra taxi behind me. No problem, I thought, he will be airborne by the time I get to the take-off point. Wrong! There he was, stuck right in my patch and he wouldn’t budge despite the fact that I’d booked the airfield for my exclusive use! By the time he’d wakened his navigator and lumbered off It seemed that only the Station Commander and OC Ops Wing were pleased to see me. Well, worse was to come. The weather the following day prevented looping and I couldn’t even demonstrate the famous Lightning rotation! I took 23 into the air my precious fuel was down to 1,800 Ibs per side! “ Harrier this is Hexter, you may not land, we are not expecting you” I thought that, if I missed out on one of the less spectacular manoeuvres and didn’t do the reheat climb to contrail height at the end of the display, I would probably only be a couple of hundred pounds below minimum touch-down fuel! Thanks? With a final check that the canopy was down and locked I roared down the runway and straight into a half loop. The practice went very well indeed and no-one could have noticed that I’d missed out a turn. A final check as I was positioned for my high speed run showed that I was already at minimum touch down fuel! Without giving it a second thought I flashed over the airfield at a great rate of knots, pulled the power back to idle and, popping the airbrakes as I crossed the perimeter fence, positioned for a straight-in approach. As soon as I got 3 greens I chopped the No 2 engine and started transferring what little fuel there was left to the No 1. Apart from the higher than normal pulse rate the landing was uneventful and I even had enough fuel to taxi back in - though goodness knows I deserved the ignominy of a flame out on the taxiway! Fuel now getting low, no time to argue – let’s land at Gutersloh and sort it out (thanks heavens for Master Divs). Land at Gutersloh find piece of paper with Hexter telephone number. “ Hexter, are you having a flying show to-day?” “ Harrier, Negative, no flying display here” Ring up.... “Why didn’t you let me land, aren’t you having a display today?” “Oh yes we are, but no Harrier has been near here today.” “Oh horror, where was I then suspicion dawns in my mind” “How do you spell your airfield name?” “H-O-X-T-E-R, Hoxter, near Hamlin” That was certainly quite an introduction to the art of display flying. I learnt innumerable lessons from that one experience, and through 3 display seasons I never again allowed myself to fall victim to wounded pride. Suspicion now confirmed, I dig out the photo that they’d sent me. Yes, nothing like the place I tried to land at! Another look at the map confirms Hoxter to be some 60 miles away from Hexter! ANY AIRFIELD WILL DO Red faced, I explain on the telephone that there had been a small administrative error but that I can still make the planned display time if I rush. Usual excellent co-operation from VASS Gutersloh and I’m airborne again this time for Hoxter. Raise them on the radio, dump a bit of fuel all set to land. Request temperature and pressure? I was displaying the Harrier back in the days when the Bona Jets were based at Wildenrath. One of the difficulties with Harrier display flying in Germany is that many of the Air Shows are located at small club airfields, which have limited facilities. One day I took a telephone message from Command requesting that I display at a civil airfield called Hexter. A quick glance at the map confirmed that this was near Paderborn, had a small tarmac runway and appeared suitable. I was fairly familiar with the area, time was short, and details of the show were to appear in the mail later, so a letter came from the club giving an outline of the show, some airfield details and a photo of the airfield. All seemed good. “89F and 28.50 inches” Oh hell, what’s that in real terms? No time to convert, got a bit of hover weight in hand, so here we go. Suddenly, while on finals for a rolling vertical landing, there is a 15 second warning staring at me! More adrenalin, overshoot, think again. Must be hotter than I thought. Luckily I took a full water tank, so I stick water on, and try again (low on fuel for the second time). Land, quick refuel, then successful display using the rest of the water. On the Sunday appointed I set off in my Harrier. A quick call on the VHF flying club frequency and then in to land on the strip.... wait a minute, what’s that? Why no hover first time? 89 f and 28.50 inches = 32C and 965 mb. Hoxter, as it says on the map, is 24 COMPLACENCY 932 ft above sea level! I learnt about how to get to your display from that! I did not suffer any embarrassment in the second year’s flying; however, I learnt two valuable lessons in my previous season. The first was not to get blasé and over-confident over a sequence; through lack of concentration I ruined the entry to an inverted run by applying opposite rudder, with the result that I stopped the roll at about l50° of bank and entered a shallow dive and lost 150 ft. Since I had started at only 300 ft the resultant pullout was quite spectacular. IS THIS HOW YOU WANTED ME TO POSITION I once set off for a display airfield in a Harrier, which slipped on the brakes at 52% (normal hold being 55%) only to block the runway at Biggin Hill for an hour by bursting 3 tyres very gently on landing. The problem had not been slightly worn brakes, as I had thought, but a leaking main oleo on the main undercarriage leg, which allowed the aircraft to effectively land on the outriggers. When I switched off the anti-skid the 2 main wheels slowly burst, and after a short taxi, one outrigger gave up the ghost. Things are never as they seem! RUSHED CHECKS The second lesson I learnt was that, no matter how pressed for time you are, you must do all the basic checks. I was forced to change aircraft after start up and rushed rapidly through the checks in the new one. On entering the display in time honoured fashion with a 6g turn I was dismayed to note that I was greying out. I realised that the anti-g was still off and I changed hands on the stick, reached down and turned it on. The resultant punch in the guts unsettled me for the following few minutes. HELICOPTERS HAVE THEM TOO As far as embarrassing experiences go I can mention two. The first was at an Open Day at a Royal Air Force station and involved a car underslung beneath a Puma. This car had supposedly been “illegally” parked, and during its transportation away by helicopter, was to be accidentally dropped: a well-worn trick I know. Fortunately I had decided to have a trial run on the morning of the show. The trouble was that some kind soul, thinking that helicopters could carry nothing more than a verbal message, had removed the car’s engine and gearbox. As a result it was so light as to be almost impossible to carry. At speeds above 40 kts the car swung quite dangerously, and it was worse in turns. Thus I found myself flying away from the airfield at 30 kts, unable to turn back. Eventually I managed to return by coming to the hover, spot turning, and then slowly flying back. The show went off as planned but I was careful when manoeuvring with that car underneath. INVERTED STALL I was practising a rolling display on the fourth sortie of the day when I really learnt about display flying. The manoeuvre that went wrong was a Derry turn with the wheels down, but the problem had its source much earlier in the sequence. I normally flew the preceding manoeuvre by turning away from the crowd through 180° inverted, then rolling upright and lowering the undercarriage whilst decelerating. On the day in question, the entry speed to the manoeuvre preceding the inverted turn was a little high, so I took off some power. This took effect but I was still about 20 kts fast in the turn. The deceleration was normal, but the extra few knots was exacerbated by a strong on-crowd wind. Things were now getting a bit tight, so the undercarriage was lowered a little later than normal, full power was selected and the Derry begun. The second incident occurred during a winching demonstration at a school fete. It was during a summer’s drought and happened when my “survivor” ran out of the crowd as briefed, waving a Day Night flare. The flare promptly set the grass alight and the downwash from the aircraft fanned the flames. Fortunately there was sufficient water available to douse the fire and the display continued without the aid of a flare. This was a predictable incident, which could have been avoided with a little forethought. The aircraft stalled inverted half way round. The subsequent pitch down gave a most arresting and detailed view of a small area of grass and a windsock. I watched in detachment as a set of hands that did not seem to belong to me applied full aileron, confirmed full power etc. As the world re-appeared the right way up and rather adjacent, 25 I began to think again and set about achieving a minimum radius turn in the approach configuration. I did this and cleared the ground by about 20 ft. That’s when I discovered that the manoeuvre required full power to work properly, and that engine acceleration time has to be taken into account sometimes. I had equated a selection of full throttle with the production of full power. I learnt about display flying from that. Just as well in this case, because no sooner had I selected the undercarriage than the engine flamed out. There was a distinct lack of noise and an excess of red lights - generators, fuel pressure.... plus 2 undercarriage reds. I rolled out from the inverted into the finals turn and hit the relight. That kept both hands fully occupied because the relight switch was pre-mod and had to be held on to keep the igniters running. There was no sign of life from the engine however, and I could see that I would soon have to move my left hand to the RT button to answer Air Traffic’s Check 3 Greens with Finals 1 Green, or get on with pulling the emergency selector in time for the undercarriage to blow down. Not that I could be hasty with the emergency undercarriage though: I Couldn’t afford to increase drag until the last moment. THERE I WAS, UPSIDE DOWN, WITH NOTHING I had done two seasons of low level aerobatics in the Hunter Mk 9 and then switched to the T7 the next year. My show included a fair amount of negative g, so from the outset I had made it my business to learn as much as I could about the fuel system in the Mk 9. For instance, although the Pilots Notes made no mention of it in those day, I had worked out for myself that I should allow an interval of 45 seconds to permit the recuperator bags to refill between negative g manoeuvres. Fortunately the emergency system worked well and the final clunk was heard very audibly and thankfully in that quiet cockpit 3 Greens were confirmed just before the threshold was crossed for a fairly normal touchdown. The ensuing rollout was without incident, but the ride back to dispersal behind the tractor was nothing if not embarrassing. So were the subsequent discussions, although to be fair no-one else on the Wing knew until after I had written out my Incident Report that the Hunter T7 was not equipped with recuperator bags. Subsequently it became clear that the Pilot’s Notes statement about 15 seconds worth of inverted flight at full power was based on having full negative g fuel traps. In the event, my downwind fuel state had not been quite sufficient to keep the booster pumps covered, so the engine naturally flamed out. When it came to working up on the T7 I used my basic Mk 9 routine, but naturally had to make some allowances for the lower thrust in the T7. Equally naturally, I liked to rehearse with as low a fuel weight as possible in order to offset the lower thrust-to-weight ratio in the T7. After four rehearsals at low level I had adjusted to the slightly lower performance of the Hunter T7 and had got back into the old groove. I normally landed off my last manoeuvre, and knew by now exactly what fuel state to run in with to provide for a touchdown at landing minima. It was therefore slightly annoying to be asked on my fifth practice to hold off for 2 minutes - having started my run-in. I didn’t want to land with 70 Lbs a side less than the stipulated requirements, but on this occasion it would have to do. I certainly learnt about display flying from that, but two obvious lessons are worth stressing: Always plan to have a sensible amount of fuel in hand. The final part of my display was an outside break to downwind, where I would roll out inverted, extend the undercarriage and wait upside-down for 3 greens. I always added 200 ft to the normal downwind height just in case. Just because you have made a special effort to extend your aircraft knowledge during the workup, don’t let the process stop there. 26 ANNEX E TO CHAP 2 THE ART OF COARSE DISPLAY FLYING When you go to a display, you’ll normally arrive the day before; showing you’re a real ace by arriving last and being in the bar first - this is easy. Most crews park their jet, kick the tyres and put in enough fuel for the following day. Don’t kick your tyres (it might be the last straw which breaks the camel’s back) and don’t bother to refuel. Aeroplanes don’t get thirsty. You do. his run and break to land! Be polite to the helicopter pilot; he will only take about 30 seconds to bore you with his display sequence, at which point you can fob him off on the station educator who will be on his annual visit to the mess for the free beer. Give the man in the flying suit adorned with badges a miss – he’s the SENGO of the local squadron pretending to be one of the boys. Don’t bother to chat up the wee nurse in the corner either - she has no time to talk because she is a busy member of the BUPA medical team, which looks after the old folks of BBMF!! Most places put on a welcoming barrel of John Smith’s or similar. If this doesn’t happen, you should get a beer from OC Ops when he comes over for a friendly chat about your arrival. Don’t worry –he’s more embarrassed than you. After all, he used to fly much lower when he was a squadron mate - he’ll tell you about that too! No friendly chat means that you were too high and impressed no one. Or perhaps you were too fast and no-one saw you, or you wired the wrong airfield. So get a grip or you’ll give your aircraft a bad name! There may be some chaps missing but do not fret. The Harrier mate has probably been sent back to base to get a clean aircraft, while the Tutor and Tucano pilots will not yet have arrived. They are both QFIs and will still be de-briefing their transit sortie! The Hercules crew will be downtown in the Hilton! You may find yourself drinking alongside or near to a navigator. Well, unfortunately, there’s not much you can do about that, other than make the best of it and try to persuade them to buy you a drink. At least you can be sure that a navigator will be talking less rubbish than a Harrier pilot. You will notice that the Tornado crew will be taking the most stick as usual. And don’t forget to pay your due respects to the Red Arrows if they arrive for their orange juice! On the day, you must make sure you get to the aircrew feeder before the Red Arrows. They trench like animals and leave nothing for anyone else.... Remember to take along some out-of-date maps and en-route charts to sell to Joe Public in your continuing efforts to boost your squadron fund. And finally, on no account think about your display sequence. You’ve had the AOC’s approval, so now you can really get stuck in and rattle a few windows with a bit of spur of the moment extemporization! Got the picture? Remember to console the F3 pilot who will be in the corner crying into his beer. He arrived just after the F15 and over-stressed his aircraft during 27 ANNEX F TO CHAP 2 THE TUTOR Reviewed by Flt Lt Howard Carby, 2002 Tutor Display Pilot performance, as well as your ‘g’ threshold. So, if its hot, remember to open both punkha louvers, keep the canopy open when possible, or better still, plan to land for a breather and a drink before the show - if you can. Being small and relatively quiet, the Tutor may lack some of the dramatic impact enjoyed by fast jets, but it does have a degree of manoeuvrability which can be exploited to make an impressive aerobatic display. The secrets are to keep it close to the crowd, and to keep the manoeuvres coming; there are few less impressive things than a Tutor flying straight and level. Turbulence. Whether caused by convection, or by wind, turbulence can steal your valuable energy in the form of airspeed loss. Beware the hot, bumpy summer afternoon. Fuel Load. Fuel load makes little difference to the display (I did one once with full fuel), but I’m not sure what the impact might be if flick manoeuvres were included in the sequence. These notes contain some guidelines on how to design and fly a Tutor sequence, how to avoid some of the pit-falls peculiar to the Tutor, and how to survive the season. Aircraft. They should all be the same, but they aren’t. Find one you like, and a spare, and fight to keep them. That way, you will have confidence in your aircraft’s performance and consequently fly a better display. You will also detect problems sooner. PERFORMANCE CONSIDERATIONS Height and Speed. The engine performance and, therefore, the ability to maintain height during manoeuvres decreases markedly with altitude. It follows that the lower you start, the less height you will consume during the sequence if there are no other variables. During the work down, the start height should be reduced progressively until a minimum for the sequence is found. This may even be as low as the minimum permitted base height. The performance lost by starting higher may itself be the cause of the height consumption throughout the sequence. Remember that your available energy consists of height and speed so that if at any point you are at the right height, but low on speed, you are actually low on energy and may not be able to complete your sequence without going below base height. Your aim should be to trade speed for height and vice-versa with the minimum possible loss of energy. (See ‘Flying the Sequence’ for more about this). You should also start with as much energy stored as possible and as close to base height as possible, so dive to start low and fast. Transits. The IMC restriction has now been cleared, but be aware lower airspace is busy at weekends and a radar service is recommended. Whenever possible, plan to transit the day before the show, or failing that, as early as possible on the actual day, so that you have a fallback. Remember that a headwind can have a considerable effect on longer transits. Keep a close eye on the long-range met forecast, you may need to go even earlier than planned if you really want to get there. Finally, don’t give up until you have investigated every avenue. With a little ingenuity and careful planning, you can get just about anywhere in a Tutor. But remember, no one will thank you for taking unnecessary chances, and, if it’s that bad, the display will probably be cancelled anyway. CHOOSING AND FLYING A DISPLAY Temperature. The OAT has a significant effect on the performance available from the Tutor’s engine. An extra 10C may increase your height consumption by as much as 200 ft. On a hot summers day, the cockpit environment of the Tutor with the canopy shut can affect your own For the Command competition, you will require a 4 minute aerobatic display sequence. It should contain a good variety of looping, rolling and vertical manoeuvres, which should not be biased to a particular side of the datum. It will be flown to a MSD of 500 ft. The limited performance of the 28 Tutor, however, leads to certain constraints if the aircraft is to be kept low and close to the datum. The following Do’s and Do Not’s will help you to avoid most of the pitfalls, but there is no substitute for individual style and lots of practice in the air. vertical manoeuvres, where you cannot roll out of the top. When flying looping manoeuvres, do relax the pull and allow the aircraft to ‘go ballistic’ over the top - you will gain up to 200 ft by doing this, and as the speed is now very low, ie totally traded for height, you will save height on the pullout which you can now adjust to get the exact entry speed for your next manoeuvre. Do not pull any more ‘g’ than you have to - it kills the speed, and robs you of energy. This is another reason for getting the speed low at the top of your manoeuvres - if you are fast on the way down, you will have to pull harder, which wastes energy. About +3 ½ to +4g is enough. Do practise your rolling and vertical manoeuvres in both directions, so you can always do them into wind when required. Even hesitation and reverse stall turns are quite possible ‘against’ the propeller, and they must be done into wind, or they will ‘bridge’. This not only looks bad, but will spoil your positioning. Do allow the aircraft to gain as much height as possible in vertical manoeuvres. From 120 kt and 500 ft, the Tutor can actually make some height in a plain stall turn finishing at the same speed. If a vertical roll is necessary on the way down, get on with it immediately and do not let excess speed build up. DESIGNING A SEQUENCE Do not be too ambitious; a well presented, accurately flown display is much nicer to look at than a valiant but unsuccessful attempt to do the impossible. The chances are that few, if any, of your spectators would recognise your inverted conical ‘lomcovak’ anyway. It is ESSENTIAL that you feel comfortable and confident with all your manoeuvres at low level when performing in public. So, if in doubt, throw it out. Do plan to run in at 90 degrees to the crowd line, ie straight toward the crowd. Even at full speed the Tutor will probably look as though it’s on finals if you run in along the line. Remember though to tell the organiser about your run-in as he will not automatically take it into account when allocating a holding point etc. Do plan to start with a vertical manoeuvre, during which you can regain lots of height from a low, fast arrival in front of the crowd. Beware the wind blowing you onto the crowd line in your first pull up, an error you will not be able to see until it is too late. Do use a sequence card, and have it fixed where you can see it on the instrument panel. The sequence will be firmly engraved on your memory, but for the one (or more!) occasion when your mind suddenly goes blank, you’ll be glad of it. All the professionals do this. You can also use it to display vital information like the QFE. Do think about the wind before you go. In the Tutor, you cannot afford to slip downwind as you will probably never get back to crowd centre. On the ground, work out how you will fly your turns, and where you will extend to compensate for wind. Annotate your sequence card accordingly, but stay flexible in case the 1000 ft wind isn’t what you expected. At air shows, it pays to watch other light aircraft, particularly those which trail smoke, if you have the chance before your slot. Remember that the wind has a particularly marked effect when you are in the vertical and very low speed. The drift here is also less apparent to the pilot. You may need to pull up upwind of the normal position as you cannot entirely compensate for drift in the vertical. Plan ahead! The following guidelines will be useful when considering the effect of wind: Do not include manoeuvres that involve long periods of negative ‘g’. The increased drag and the loss of propeller efficiency leave you with a speed penalty, which can only be regained by height expenditure. Do make sure your sequence is adjustable for wind direction. You must be able to position it centrally, whatever the wind velocity. To allow this, you must change from the A (crowd line) to the B (90°) axis regularly or combine the two (use the 45° axis), using turning manoeuvres which can be flown in either direction. You should be able to turn directly into wind after every two or three manoeuvres. In still air, your sequence should not ‘track’ in one particular direction, or you will not be able to compensate easily for the ‘worst’ wind. FLYING THE SEQUENCE Do give yourself some flex. Having worked out the start height, add a little so that you are not struggling to maintain base height. Make sure that you always start manoeuvres with the correct energy, ie. height and speed must be correct or you will not make your top gates. Achieving the ‘bottom gate’ is especially important when flying Whenever possible, start your looping manoeuvres into wind. 29 Stall turns should be made into any sidewind component. Check the throttle friction. Its value is debatable in some aircraft, but it may be wound tighter than you really want. Rolling manoeuvres look best with the wind behind you, but they travel a long way, so they may have to be flown into wind for positioning reasons. When strapping in, give your harness lugs a sharp tug to make sure they’re securely in the QRF before you tighten up. In the same vein, make an extra check of the fire extinguisher security before you get in. With the wind behind you, a steeper pull-up or dive will help you compensate, and vice-versa, with a headwind. Double-check the really important things as you run in: QFE, fuel cock, magnetos, flaps, harness and canopy, spring immediately to mind. When rolling with a crosswind, roll into it, and pick an aiming point, which allows for drift. When looping with a crosswind, roll into wind on the way up, reverse the roll by twice the amount over the top, and you will come out with the right drift on. Don’t start anything you can’t finish; make sure you have enough height and speed at the beginning of your manoeuvres. CONCLUSION If in doubt, over-compensate; it is much easier to slip downwind again than to struggle back against it. Displaying the Tutor is great fun, but like any other aeroplane, it will bite you if you ask too much, so don’t be tempted to push your limits. Careful energy management will get the most out of the aeroplane. You cannot emulate a Pitts Special, so don’t try. Instead, stick to what you and your Tutor can do well and you will have a safe, enjoyable and successful season. Make sure you know which way each of your manoeuvres would track in still air; a loop, for example, will track in the direction in which you started. Armed with this knowledge you can make the appropriate corrections more quickly if things do not work out as planned. FURTHER READING SOME SAFETY HINTS There is an excellent book by the late Neil Williams on the subject of aerobatics. Entitled simply ‘AEROBATICS’ it is published by AIRLIFE and is a must for novice light piston display pilots. Empty the side pockets of anything that can’t be firmly wedged in, otherwise, you might find yourself forced to read the aircrew manual during the first slow roll. 30 ANNEX G TO CHAP 2 THE HARRIER Demonstrating the Harrier GR7 to its best effect calls for attention to all of the details that have already been mentioned in this booklet. However, because of the Harrier’s ability to hover and land at small grass airfields, some problems will be met which are peculiar to the type. a hard decelerating turn with nozzles and STOL flap selected; a high power setting will avoid the nasty pitchdown when the flaps schedule at 165 kts, or select them as you pass through 120 kts. Partially jetborne turns made in the 30 kt to 120 kt regime add great interest to the display; however, pilots should be careful to keep the AOA and side slip under control otherwise the GR7 will depart. If the ac is in 3-pylon fit, take extra care to ensure that 15 AOA is not exceeded. During these turns the SAS bleeds a lot of thrust, and this combined with the loss of lift due to vectoring in turns, can combine to produce a very nasty sinking feeling, especially if coupled with hot-air re-ingestion in a down wind manoeuvre. THE DISPLAY ROUTINE As with any aircraft, it is vital, having selected a display routine, to stick to it. Changes should only be made after careful thought, followed by consultation with an authorising officer and then some practice. Four routines will be necessary: the full show, rolling show, flat show and the hovering-only routine for very poor weather. Rather than devise four entirely different routines, it should be possible to produce one basic show with variations to suit the circumstances. However, a Harrier pilot is at an advantage over most others when it comes to weather minima; so long as the spectators can see the aircraft, a Harrier can be displayed, albeit in jetborne fashion, in poor weather. This makes every weekend a challenging experience. Again, in front of the spectators, the Harrier makes a lot of noise at 100 ft, so there is no need to hover low in the wingborne part of the display in order to impress the crowd. Steep decelerating transitions are exciting, but care should be taken during the flare. The flare at the bottom of the descent should be made whilst still wingborne - do not rely on jet-lift to arrest the descent - the use of water should be avoided, as steep attitudes can blow the water pump. Steep accelerations from the hover (when permitted) require extra care. An over-enthusiastic nozzle movement can result in the nozzles going fully aft before wingborne speeds are achieved, giving a tremendous pitch-down. One Harrier pilot resorted to ejection after experiencing just such a pitch change. The first essential is to note the position of the display line, which should normally be parallel to, and must be at a safe distance from, the line of spectators. This line should not be crossed except in dire circumstances - running out of performance and crashing at the display line is not as safe as translating away, albeit over the crowd! Particular care must then be taken when planning maximum performance turns towards this line, such as low speed/high ‘g’, as any misjudgement results in the crowd line being infringed in a big way! Note that your display lines change as you accelerate from jetborne to wingborne flight. Lastly, an unusual feature of any Harrier display sequence is the number of times the undercarriage is raised and lowered to fit in with the VSTOL routines. Build in extra checks prior to landing, to make sure the gear is not out of sequence! PREPARING FOR A DISPLAY Considerable preparation is necessary prior to a Harrier display at an away airfield. Firstly, it is highly desirable to visit the airfield before the display to inspect the facilities and discuss the show with the organiser. The following particular Harrier points are additional to those quoted in Chapter 2: Clearly, all planned manoeuvres must be safe and within the Release to Service; however, some limits are more hazard than others. In a slow speed aileron roll, the Harrier will dish out quite markedly, often throwing it off the crowd line. Moreover, the pilot must take great care during Fire Cover. Ensure that fire cover is adequate and brief the fire crews on your ejection seat and escape facilities. Otherwise, it is usually best to take your own fire vehicles to small airfields. 31 Practice emergencies in the simulator whilst flying the display sequence. Know undercarriage and engine emergencies intimately as these usually occur at very low fuel states. Runway. Emphasise the FOD potential of the Harrier and insist that the runway is swept. For grass airfields, ensure that the LDA is sufficient even when wet, and that a loading test has been carried out before landing. Visit the display airfield before the display - if possible read site notes made by previous display pilots. Check suitability of runways, grass areas, Mexes etc. Ensure that fire/ambulance cover is adequate. Confirm that spectator clearances are correct. Check aircraft guarding arrangements. Consider the birdstrike hazard on the airfield. Ensure that a NOTAM has been promulgated for your display and that the vertical limits are sufficient. Fuel. Fuel must be of the correct grade, with FSII. Otherwise provide your own bowser. ATC. Inspect air traffic facilities or provide your own mobile ATC - a pilot in the spare ac can assist by wearing a headset and being on hand with a set of FRCs . In any event it is worth liasing with the ATC controller and explaining the foibles of your display discussing how they can assist during emergencies such as an undercarriage problem that requires an inspection. Practise at least once in the week before the display. Tailor your practice to the shape size/layout of the display airfield. Fly the display aircraft if possible. Briefing. Brief the organiser carefully on the special aspects of the Harrier: its relative shortage of fuel, the danger from jetblast in the hover, the requirement for wind and accurate temperature readouts. All parked gliders and light aircraft must be kept well away from the parking slot and hovering areas. Helicopters must not be permitted to operate close to the Harrier as they can blow FOD into intakes. On transit to the display airfield remember that weekend flying is marked by a profusion of gliders and light aircraft - flying above 5000ft can reduce this risk. Check the aircraft for perfect serviceability. Do an inverted flight check. Confirm all JPTL datums are correctly set. Ensure that fuel is feeding symmetrically. FLYING THE DISPLAY The show is not over until you have shut down and are out of the cockpit with the seat safe! A Harrier display is demanding on the aircraft as well as the pilot. The biggest single factor is the wind. Lack of appreciation of a tightening crosswind on finals can naturally ruin the display. Temperature is the other big problem in the Harrier, and it is wise not to place too much trust in temperature readouts from the tower. A full water tank is a very useful precaution to employ against unexpectedly high temperatures; and if you are flying overseas, remember that many civil airfields are well over 1000 ft AMSL. If the worst comes to the worst and there is some aspect of the display organisation that you don’t like, but which the organisation won’t change, don’t fly. Withdraw your aircraft and report to Group/Command, who should back you all the way. CONCLUSION Displaying the Harrier should be fun, impressive and absolutely safe. Safety is mainly a matter of sticking to the rules and applying common sense. However, the tricks of the trade that have been described in the preceding paragraphs can save a would-be display pilot from pumping excessive adrenaline and will ensure that he enjoys a smooth, trouble free performance when operating from small, unfamiliar airfields equipped with limited facilities and amateur organisers. Fly the display as if it were a practice, ignoring as far as possible the distractions of the crowd. Post-display euphoria can be particularly hazardous; it looks silly to taxi into a ditch whilst waving to the applauding masses. The unhappy example of the Harrier pilot who was inadvertently ejected after forgetting to safe up his ejection seat after a display, is the saddest case in point here. HINTS AND PITFALLS To complete the picture, the following are a few extra hints applicable to the Harrier, potential pitfalls and ways to avoid them: 32 ANNEX H TO CHAP 2 THE HAWK The following notes have been extracted from the end-of season report submitted by Flt Lt Ian Wood after the 1992 display season, and make good reading for all would be aeros pilots. negative G capability of the aircraft. The next stage of designing the sequence is like a 3 dimensional jigsaw puzzle. Make a list of the manoeuvres that you can fly in the Hawk and pick about 10 that you wish to use. These are the basic manoeuvres such as a slow roll or half-cuban. By the time you have included your link flying manoeuvres such as derry turns and wing-overs you will have got about a 6-minute batch of aerobatic material. Six minutes is a good length; it is the required timing for the Wright Jubilee Trophy and it is about the right length for your own G tolerance plus Joe Public’s interest retention span for a singleton Hawk. INTRODUCTION I was selected as the Hawk Display Pilot at the end of the last season and was lucky enough to fly with the previous display pilot on his final display of that season. This was of tremendous benefit. Not only did I witness at first hand the excitement and precision of flying low level aerobatics but I also saw just how much planning and preparation goes into every show. The display was overseas at a very difficult site, in poor weather, with minimal display organisation. It was a classic lesson in the various pressures that can be applied to a display pilot operating on his own a long way from base. I considered this to be an invaluable step in my preparation for the forthcoming season. I felt that there were 2 ways of starting the sequence, either arriving fast and low or from a standing start; both impressive in their own way. An experienced display pilot told me that you shouldn’t go straight into your sequence from take-off in your first season. With hindsight I think that was sound advice. It is much more settling to get airborne, get away from the crowds and get a measure of the met conditions for the day before running in. This gives you a slow time opportunity to do an inverted flight check and triple check the trivial things that can throw you out of your stride. I always had a ‘warm-up’ routine, which included an 8 point roll, an outside turn and a max rate turn. I then knew that I was not going to black out for any reason and that my hands and feet were working at the same speed. I therefore elected, for my display, to run in fast and low from the hold. There are numerous sources available to the prospective display pilot which can help him design a sequence that will work: previous end of season reports; DASC Flying Display Notes; and the Synchro Pair Finally, by talking to the British Aerospace Hawk Test Pilots, particularly when unusual manoeuvres are planned, he can find out how close he might come to something nasty happening! I have tried to collate the information that I found invaluable to produce an account of how I designed and flew my aerobatic sequence in the Hawk. PREPARATION My final manoeuvre was easily chosen because I wished to include vertical rolls in the sequence and if you don’t want to waste valuable time coming back down again, you have to put these at the end. Firstly, decide what aspects of the aircraft you wish to present. Remember that ultimately you are displaying the aircraft to the public. Although professional pride will dictate that you include something difficult or unusual for the aviation buffs, most of the punters will be happy to see you flash past making lots of noise. Because the Hawk is a relatively quiet aircraft you will probably want to have full power selected for as long as possible and control speed with airbrake. The attributes I tried to highlight were the excellent roll rate, small turn radius, the high sustained rate of turn and the There are other manoeuvres that you will probably have your own ideas about how you wish to present them. In my case I was determined to include an outside turn which went from one 45° line to the other with the canopy glancing the 230m line crowd-centre. This means that you have certain pieces of the jigsaw which are immovable. There are probably other manoeuvres which have 33 similarly fixed positions. minutes to 6 minutes and 10 seconds. This was partly due to the reduced turning and looping radii at low level and partly due to my increased proficiency the more I practised. Do not despair if you have difficulty positioning the display at 5000 ft - it becomes easier as altitude decreases. You will also find that your techniques for flying the sequence change. You will rely much more on looking out of the window and less on chasing the altimeter. You must now carefully draw to scale your proposed manoeuvres making sure that what you want to do is feasible in still wind conditions. This can be done by drawing 3 abutting circles with a radii of conditions. This can be 1500 ft against a 6000 ft line as shown in Fig 1. This represents the framework within which you should try and stay for a good tight show. 6000 ft is the approximate distance covered during slow rolls and 8-point rolls, after which you should always aim to be turning back or pulling up towards crowd-centre. The 45° axis should be used as well in order to keep the display compact and provide variety. Exploiting a secondary axis in the Hawk is straight forward because of the accuracy of the AHRS (Attitude Heading Reference System). The AHRS is an invaluable aid in the Hawk, particularly at non-airfield display sites. I suggest you dial into the course window the heading of your line and use the yellow bug for one of your 45° axes. If you now select ILS mode and switch the ILS box off you will get a solid bar, which instantly tells you where your line is. The yellow bug will either be at the 12 o’clock position or on the 90° point when you are working the 45° line. This accuracy of heading position is invaluable especially when flying something like an outside turn. Pitch information is also important during the sequence and you will rapidly acquire a feel for how it is going on all the vertical manoeuvres relative to pitch angle. During your pre-season workup, calibrate your eyes accurately on exact 45° cues for 8-point rolls versus the AHRS. I would strongly suggest that an AHRS unserviceability is a no-go item unless the weather is very good and it is an easy display site. Whilst considering the practicalities of your manoeuvres you must bear in mind the following rules: A loop finish 0.25 mile beyond the pull-up point. A Half Cuban Eight will base out 0.5 mile beyond the pull-up point. A Half Horizontal Eight will base out 0.5 mile behind the pull-up point. Do not plan on any straight and level bits - the aircraft must be kept moving the whole time. Gate Heights. How does one define gate heights? I suggest you use 2 separate gate heights. Have a minimum height which is that required to recover from a particular manoeuvre, a ‘never go below’ height. Then set a ‘target’ height which is what you are actually going to aim for every time. In the Hawk, to recover by 500 ft you are going to have a minimum height for your looping manoeuvres of 3600 ft plus 100 ft for every 10 kts in excess of 200 kts. You would therefore set yourself a gate to aim for of 3700 - 3900 ft with the speed below 200 kts. This feels comfortable and can be achieved consistently with practice. Be aware that speed over the top will dramatically alter your looping radius and could catch you out if you extend and accelerate for any reason at the apex of a manoeuvre. At 5000 ft your minima and gates will be much larger - work out what they are, and then apply these when you do your first practice at 1500 ft gradually reduce these during your 1500 ft practices until you have a realistic figure for this height. When you move down to 1000 ft retain the same gates and repeat the process of whittling away gradually. Once down to 500 ft you will Try not to have any fill-in manoeuvres such as aileron rolls at this stage - you will need these when the wind is blowing. The sequence must be balanced. Ensure that you have an even spread of vertical manoeuvres crowd-left, right and centre. Vary your rolls to the left and right and do not have all the flat manoeuvres in one half of the show followed by all the vertical manoeuvres. Once you have got your sequence mapped out on paper you can start flying it at 5000 ft. Initially you will find it difficult to link the manoeuvres together and fly them accurately at the same time. You will probably need regular ‘time out’ in order to practice individual manoeuvres before stringing them all together again. You will need to know the sequence backwards before flying it at low-level. At 5000 ft, your sequence will take considerably longer than at low-level. I reduced mine from 7.5 34 slowly arrive at the same gates proven through experience. It is important that you go through the process of learning these and proving them for yourself - only then will you be comfortable in pulling through every time. dow and bug the 45 line. Turn off the radio not in use and deselect guard. Tuck your shoulder strap ends back under the harness. During my first outside turn at 500 ft, the end of the shoulder strap went up under the corner gap in my visor and gave me an instant eye patch. Wind. See Chapter 1 for some good advice on how to deal with wind. I found that you soon become accustomed to how wind affects your particular sequence in different ways, particularly when flying slow-speed manoeuvres. Initially I used to divide the wind into 2 components - on/off-crowd and crowd-left/right - and then consider how this would affect each manoeuvre. Later in the season you will be able to assess the wind effect automatically if you have flown in a variety of conditions. The only manoeuvre I found to be very difficult to control was the slow loop. At near ballistic speed over the top, this manoeuvre is very susceptible to wind. If the wind was on-crowd, the pull-up had to be started a long way off the line and once committed, there was little flex for bending it. Therefore, if the wind is more than 25 kts on-crowd, consider discarding the slow loop and go straight into the next manoeuvre - a wing over. Taking out the wind during the full show is straightforward because you are constantly getting a plan view of how it is going and you can see the line readily. It is also easier taking the wind out in the vertical. The problems are more difficult during the rolling and flat shows particularly with an on crowd wind. This is because most of the time you are turning away from the line blind and having to put in ‘a few bananas’ of wind correction. Once you pitch back you are committed and can do nothing more than fly at max performance in order to prevent flying through the line. This is a potential trap whilst flying wingovers back onto the line during a tightening wind. The temptation may be to deepen the wing-over in order to gain more turning room - remember there are no specific gates for wingovers so beware this pitfall. PLANNING Once you have finalised your full sequence, start to think about a rolling and flat show. Try to keep the order of manoeuvres the same so that there is a logical progression from one display to the other. There is nothing worse than running in for a full display and suddenly being told you have to go rolling for airspace restrictions. You need to be able to go from one to the other without a complete brain dump. Try and fly some of your vertical manoeuvres in an oblique manner to cope with varying cloud bases and to maintain position in any transition from full to rolling. Thorough preparation will ensure that your first few displays go as smoothly as possible. Once into the season you will be able to decide exactly how much you need to do before. Once you get your list of displays from Command, you can then start planning. It is easier to get as much done early on rather than to suddenly find you are working like a one-armed paper hanger in the middle of July. Order a set of site photos from JARIC asking for the same format as the Red Arrows. Be careful to specify the LAT/LONG of the display site (you will need to check with the organisers) At some of the unusual sites such as Buchan and Boulmer, it may not be coincident with the radar head or domestic site. Establish the exact display datum and line with the organiser and prepare a 50,000 Site Map. If you are arriving straight into the display from somewhere else you will need to combine this with an IF-to-Target run. To sort out your timing before the season starts, fly at 2000 ft and 360 kts and select full power from a known point on the ground and measure on a 50,000 map your own timing marks. This assumes you plan to arrive as fast as possible. It is easy to accurately measure your 6000 ft line on the 50,000 and plot your different axes and headings. You can then transfer this information to your photograph, which will be a very good briefing aid. If you have more than one display during a day you will need to liaise with the organisers to establish different slot times and try to give yourself as long as TRAINING Once you start training at low-level, include the following extra checks before you start every practice or display: Double check the security of the rear seat apron especially the pip pins at the top. I lost one cover completely in the middle of a display! Check that both PEC covers are firmly stowed. Select the ILS off, dial your line into the CSE win- 35 very generous in providing a display flying suit and a good deal of promotional material eg, stickers, badges, posters and ties. This Sort of support helps tremendously in rounding off the whole display and giving it a professional finish. RAFSC ASIs require you to produce a display brief which you send to Air Show organisers in advance. In addition to this, you should send information about yourself and your sequence with suitable photographs. Obviously, Air Show organisers who have a display in early May are having their brochures printed a few weeks earlier, so have your material ready to send out as soon as displays are allocated. The pre-season DASC symposium provides an excellent forum for meeting people involved in running the display season, particularly your desk officer at Command, and for hearing lectures from people who have done it before. The provision of mobile telephones to display crews in RAFSC helped enormously. On numerous occasions the ability to check on last minute details such as weather and timing proved invaluable. possible between displays. Plan your route on a half mil and have a bad weather back-up planned on a high-level map. I enjoyed transiting at 2000 ft if the weather was good and I was not going through areas of high civvy intensity. Give glider sites and minor airfields a wide berth at weekends and if necessary fly at medium level. I planned to go everywhere at 360 kts for 2 reasons: firstly, 360 kts gives you good speed-up/down capability to make hard TOTs; secondly, because arriving at the correct fuel weight is important, you can adjust fuel weights accurately by using the airbrake. At 360 kts/2000 ft, a clean Hawk uses 15kg fuel per min whereas with airbrake out, full power will maintain 360 kts using 30kg per min. If I had a long transit, then I would take an extra 100 kgs as flex for the all-too-often delays. This could then be burnt off once an accurate display time had been established. The portable telephone was a great aid in getting a last minute check on timings. RULES FLYING THE SEQUENCE Sequence. Before the beginning of the season, one needs to be aware of the rules covering approval of the display sequence. In PTC the Stn Cdr has the authority to approve a display sequence and directly supervise the work-up of his display pilot. Others may be subject to GASOs, which require them to have their sequences approved by their Group. This can cause delays, so start the process early. Additionally if something doesn’t work in a sequence, or looks wrong, it is helpful to be able to change it at Station level. Here are the techniques I used for flying individual manoeuvres during the 1992 display: Half Horizontal Eight with Push-out to Inverted Flight This was a manoeuvre I saw the Mirage 2000 perform the previous year and thought looked impressive. After some experimentation at 5000 ft, I found it was perfectly feasible in the Hawk. The difficult thing to quantify was a gate height. This varied tremendously with speed so it was particularly important to perform the whole manoeuvre consistently in order to achieve a safe and consistent recovery. I pulled up from a 100 ft high-speed pass at idle with the airbrake selected using +7.5G. This gave an apex of about 4300 ft; the nose was pulled to 60° nose down and then checked, at the same time selecting airbrake in and full power; my gate height of 3 100 ft arrived very soon with a speed of about 270 kts. The stick was then pushed to the front stop; initial recovery is good but then slows as the speed increased to about 380 kts at the inverted position. The negative G increases to -3.5G, but I backed off the push with about 100 to go to the inverted position. This gave me about 300 ft of flex for the unexpected or slightly different entry parameters and also allowed me to ‘feel’ the last bit of the recovery to a nice level inverted attitude. Psychologically this was the hardest manoeuvre to bring down to low-level. It was certainly a real Authorisation. Delegation of authorisation to display pilots once their AOC has given Public Display Authority is also helpful. Supervisors cannot expect to foresee every eventuality that may occur over a 4-day, 10-sortie period and this makes blanket authorisation meaningless. If a number of displays are being flown over a weekend from different airfields, the weather can drastically alter your plans and force you to operate from bases other than those planned. ORGANISATION The early appointment of the display pilot gives him ample opportunity to sort our his publicity material. I approached British Aerospace and asked them if they could produce a brochure for me. Obviously this sort of thing takes time to organise and print British Aerospace were also 36 eye-opener for the first time at 500 ft! My pullup point for a good centred recovery was 300m beyond the end of my 6000 ft line; this was then adjusted for head/tail wind. the selected nose-up attitude, which required a lot of top rudder to hold the nose up due to the low speed. Minimum height to pull through was 3600 ft + 100 ft for every 10 kts in excess of 200 kts. I therefore elected to have a gate height of 3700 ft to 3900 ft with a speed of less than 200 kts. Derry Wing-overs These were always a flexible feast adjusted for the wind of the day. Nominally flown to 60° nose up, these were flown flatter with an on-crowd wind to gain greater displacement from the line, and steeper with an off-crowd wind. The danger here is that there is no clearly defined gate height with this type of oblique manoeuvre. Angle of bank versus nose-down attitude has to be carefully monitored to ensure a safe pull-out, particularly when pulling hard for the line with a strong on-crowd wind. The angle off the line (usually 45°) when pulling up for the wingover is also adjusted for the left/right wind component. I flew one of my wingovers as a negative-G manoeuvre with a push-up instead of pull-up just for variety; the principles remain exactly the same. Outside Turn Coming out of the Half Cuban, speed was controlled with airbrake in order to enter the outside turn with 330 kts. This meant the stick could be put on the front stops without overstressing and gave about -3.25G. It was important to roll in and select the right AOB in order to make a good level turn. Minor changes in AOB were then used to stay level. At low level, I noticed that the altimeter rapidly unwinds to about 100 ft as you roll in and push due to pressure error, which can be quite disconcerting; you have to look out the front and convince yourself that you are not descending. The other uncomfortable aspect of the outside turn was at sites which had tall obstructions atone end of the line. Even though you knew geographically that you were clear, it was tense turning towards them unsighted. Inevitably these were flown with an increased MSD. Eight-Point Roll An extremely satisfying exercise when you fly a good one. You need to ensure that you start any rolling manoeuvre m the Hawk with the nose in the right place and also achieve a good level inverted attitude. Pronounced pushes are required at the 135° and 225° points in order to stay straight and stop the nose dropping. A lot of practice is required to hit 45° on every point - cross referencing of visual attitude versus the AHRS ensures accuracy. Decelerating Half Horizontal Eight The pull-up for this manoeuvre was flown at idle and airbrake so that as the aircraft came over the top undercarriage and full flap could be selected. This gave a relatively low apex height at approx 3300 ft. The nose was pulled to approx 40° pitch down and checked briefly, before rolling erect. This was a difficult roll to fly without dishing out. The aircraft was then flown towards crowd-centre with a large correction for the wind of the day in order to position accurately for the dirty 360° turn. Max Rate Turn into Derry Because I had flown the Eight-Point Roll at full power, I needed airbrake at the entry into the max rate turn to reduce speed from approx 400 kts to 350 kts to avoid overstress. Speed could then be controlled through minor buffet variations. The max rate turn was let out as required for oncrowd winds. In order to Derry the turn, a positive unload was required to avoid a big corkscrew in the smoke. Loaded rolls look very untidy. Again, nose position was very important prior to entering the Derry turn. A hesitation Berry at the inverted position was flown to cater for strong off-crowd wind. Dirty 360° Turn This was entered at 190 kts with full power coming on as I turned away from crowd-centre. It was flown at 300 ft with gear and full flap down. In still wind the turn could be flown at +2G and the speed would sit at the 190kt mark. If this turn was let out for wind, then care had to be taken not to exceed the speed or G limits. The positioning of this turn was critical because it preceded the slow loop, which had to start in the correct place for the wind of the day. It was also imperative to have 190 kts as I rolled out with full power already established. Half Cuban Eight Flown on the 45° line, I pulled to 70° nose-up for this manoeuvre +10° depending on the on/offcrowd wind component. Airbrake was used briefly on the pull-up to ensure a speed of less than 200 kts over the top. A hesitation roll was included at Slow Loop As I rolled out on the line, I selected the flap up 37 and then gear up, simultaneously pulling up at 200 kts. Care had to be taken not to enter the buffet especially when the flap was travelling those last few degrees. As the aircraft reached the vertical, I used to unload my pull slightly to ensure I got my minimum height of 3000 ft over the top. Wings level had to be carefully maintained on the AHRS during pull-up. Speed over the top reduced to around 60-70 kts which resulted in more of a flop over with the nose pitching through the horizon quickly. Height loss builds up very quickly and you must keep the pull on throughout the recovery on the very lightest of buffet. Entry parameters were critical to achieving my target height of 3100 ft. If I found I was slightly slow coming out of the dirty 360°, then flap could be selected to mid for the last part of the turn in order to gain a few more kts before pull-up. This does however increase your turning radius so you must have a bit of flex before the 230m line. In emergency, remember that you can always select mid flap during the recovery from any looping manoeuvre. You will undoubtedly overstress the aircraft and have to land, but it may save you from hitting the ground. Careful planning and attention to critical heights will avoid either of these eventualities. and roll onto that. As you pull through you can use the rudder to bend it back onto the line if you are slightly out. Gate heights are the same as for the Half Cuban Eight. If you wish to extend into wind you can put a roll-off into this manoeuvre. Beware accelerating and note well the notes on gate heights. Slow Roll I flew the slow roll to the right and from an inverted to inverted position in order to be unusual. This meant establishing a good inverted attitude prior to commencing the roll and finding that same attitude on the exit. As with all my rolling manoeuvres I tried to fly them at the same cadence and achieve the inverted (or erect in this case) position at crowd-centre by starting from the right place. This was obviously adjusted for crowd-left/right wind. At the end of any rolling manoeuvre which went down the line and then into a hard turn, I would throw in a Canadian Break or roll the long way round into the turn which ensured the jet was always moving. The following additional manoeuvres were flown during the rolling display: Push-up Half Cuban Eight Exit speed from the Quarter Clover needed to be 330 kts which was achieved with airbrake. As per the outside turn, the sticktop could then be put on the front stop without worrying about overstress. The push was kept on until 80° nose-up, which coincided with about 3000 ft. Airbrake was needed again on the push-up to reduce speed to 200 kts. The pull through was as before; once ensured of capturing 500 ft MSD the pull was slackened to level at 100 ft MSD. Vertical Rolls A +7.5G pull to the vertical from approx 430 kts meant that vertical rolls could be flown to 10,000 ft. This should ensure that even on a good clear day you will be out of sight to most people. Use the AHRS to achieve the vertical and once rolling, a lot of forward stick is needed to maintain it. Four-Point Roll The points to this roll need to be held twice as long as the eight-point roll in order to cover the same ground track. This means they come under longer scrutiny and need a slight fudge factor in order to look right. Imagine you were flying a fourpoint roll to the left from crowd-left to right. The first point should be at 85° and the third point at 265°. This makes the aircraft appear in plan form from the crowd sight line. Full rudder is required to keep the nose up on the points with a good push at the inverted position. Oblique Loop This was a useful manoeuvre to make maximum use of the cloudbase on the day. Positioned crowd-centre, it was very much a case of looking at the clear sky available, and pulling hard to a point at 90°, holding the same angle of bank, and varying the pull to suit the wind of the day. The idea being to glance off the cloud opposite crowd centre. On a day with a 3500 ft cloudbase, this would not be far off the vertical; with a 1000 ft cloudbase, it would be not much more than a max-rate turn. The only problem with the manoeu- Quarter Clover The pull-up for this manoeuvre was at 350 kts on the light buffet checking as soon as the aircraft hit the vertical, rolling rapidly through 90° and then straight back into the light buffet. Where the line was a nice long runway, this was a straight forward manoeuvre, rolling the runway to the top of the canopy and then pulling it through the nose. At other sites, you have to pick a feature close to the aircraft at 90° once in the vertical, 38 vre is the lack of gate heights. Nose-down attitude must be carefully monitored against height on the pull out. up to around 50° was initiated, maintaining the back pressure as roll was fed in, to be pointing at crowd-centre 90° off the line. The roll and pull were then combined to finish close to the line and once again parallel to it. A good safety check is at the halfway point as you are pointing at crowd centre. If the nose is above the horizon, things are looking good. If the nose is below the horizon then alarm bells should start to ring; slacken the pull and keep rolling for the horizon. Once a few have been flown at low-level you will get a feel for back-pressure versus pitch. Barrel Roll A useful manoeuvre which can be flown with care in a 1500 ft cloudbase. When practising always practise for the worst case. The technique I found best was to position parallel off-crowd by 3000 ft. This was done by flying a max-rate turn through 180° at the end of a rolling manoeuvre. Crowd centre was now in the 1.30 position. A pull- 39 ANNEX I TO CHAP 2 THE HEAVIES If you are a ‘heavy’ display pilot and have given the preceding chapters of this booklet a miss, you should turn back to the beginning. Although this section will inevitably reiterate some of the earlier points, the content of Chapters 1 and 2 is of paramount importance to you and should also be of consuming interest. the turn will be completed in 40 seconds, thus the diameter equals 2 miles (40 seconds worth of 180 kts) divided by it, which is 1300 yards. In the same way as the aerobatic pilot plans out his sequence on a scale map, so the heavy aircraft display pilot should plan the turns which link his sequence. PRESENTING YOUR AIRCRAFT GETTING THE FEEL Clearly, pre-display preparation and a thorough knowledge of both one’s own and the aircraft’s capabilities and limitations are fundamental to any sort of display. However the great difference between ‘heavy’ and ‘fighter’ displays must inevitably lie in the content. The range of manoeuvre afforded to large aircraft by Air Staff Instructions and structural considerations is limited. You must therefore compensate for any possible loss of spectacle by detailed planning, skilled presentation, accurate timing, correct positioning, the imaginative use of lights and pyrotechnics, and the use of bank to display the lines of the aircraft and show off the low level handling characteristics. Obviously, therefore, the manner in which the aircraft is to be presented deserves the most careful consideration. In Chapter 1, members of the ‘bloodshot-eyes’ brigade are advised never to fly their aircraft straight and level during a display. This is impractical for the ‘heavy’ pilot. That advice must be modified to avoid straight and level constant-speed fly pasts when possible; and every opportunity must be taken to pass the crowd with bank on. Use of large bank angles will show off the aircraft in plan form to the spectators; slightly less bank may reveal the bomb bay contents to the crowd. In the case of all heavy aircraft, you must also work the aircraft out thoroughly at a sensible height to know how hard you can pull, how much is too much buffet, how far the speed can decay before the wing-over becomes unique, how long you have to wait before the way you are pointed becomes the way you are going, and the effect of various AUWs. PUTTING IT TOGETHER Irrespective of aircraft type, you must practise each manoeuvre separately until it works right every time and allows for change of run-in direction. The visibility from the left-hand seat will be a dominant factor in your display, particularly when turning right. By the time you can see that you have misjudged it, it’s usually too late to do much about it So make sure that you are aware of the effect of wind, haze layers and the late afternoon sun. Most important, educate your co-pilot and make full use of him. When you are confident of each manoeuvre - with and without undercarriage/bomb doors/etc - put them together. There aren’t many so it won’t take long, but remember that a smooth and speedy transition is necessary if you want to keep the display crisp and near the datum. BASIC PLANNING FINE TUNING Basic planning must be done for the ‘heavies’ (as for the fighter pilot) on the drawing board. You must know the diameter of your turns. Fast jets maths is complicated, so do it this way: a Rate 1 turn completes 360° in 2 minutes. The circumference of a turn is expressed as it x diameter. Thus at 180 knots the circumference equals 6 miles = it x d. The diameter of the turn can be found by rearranging the equation thus: diameter = 6 divided by it, which equals 1.9 miles. At Rate 3, Naturally you will have practised your manoeuvres at height before presenting the sequence to your executives. You must always have the same mentor watch and debrief your show, you should then get a consistent standard of criticism. Remember that the aim of display flying is to impress the public - which in general is often highly entertained by some of the more basic aural and visual assaults on their senses, and upon whom the 40 organisers to avoid further delays. Your limited speed range means that the size and orientation of the holding pattern must be carefully planned to enable you to lose or gain time. Most air shows have laid-down holding points to which aircraft are allocated by broad category, ie all the ‘heavies’ together. However, if you would rather use a different holding point - or vary from defined patterns or heights - ask the organisers. Most are amenable to necessary change. In any event, be sure to select some track features between the ‘hold’ and the display to ensure that you arrive on the right line and pointing in the right direction. finer (and often more demanding) points of flying and airmanship are lost. If you have clearance to use them, pyrotechnics and searchlights may indeed arrest the consumption of ice-cream. For example, landing lights can be turned on with the undercarriage down; the Nimrod searchlight can be switched on and the night illumination flasher selected with the bomb doors open; taxi lights can also be used effectively throughout a display. You will find that the use of large bank angles does make accurate height keeping a little more difficult. Variations in height during prolonged turns look bad, particularly with the aircraft in full plan form. However, since the crowd cannot judge aircraft height very accurately, you can compromise and make the whole sequence look tidy by adjusting height when turning away or towards the crowd, and accepting whatever height you have when in full plan form view of the spectators (provided you are at or above your MSD). Accurate positioning in front of the crowd is probably the one most important point, it is very easy to find one-self drifting away. A crosswind coupled with a continuously reducing radius of turn compounds the problem, but there is no substitute for practice in coping with the various wind effects. Pilots must practise in both on-crowd and off-crowd winds- on any one day the display can be practised in both wind conditions simply by having an observation point at either side of the main runway. Naturally you must know precisely how long your display lasts, you must establish markers during the sequence to keep you informed of any variations and use your crew to monitor adherence to the schedule. It also helps to know the duration of individual manoeuvres; thus, if half way through your show the display controller tells you that the Blundertwits will be on stage 45 seconds early, you will perhaps be able to miss out one manoeuvre and still make an orderly departure. It goes without saying that slower speeds tend to increase the effect of any wind, and it is only too easy to exceed ‘g’ or angle of bank limitations in an attempt to rescue a poorly planned turn. Practice and more practice is the ultimate solution, but prior attention to the wind strength can make life easier. The use of landmarks may be counter-productive for the fast jet display pilot, but ground features can be very useful when displaying a heavy aeroplane. When you practise around your own airfield, take note of the features under your turn-in/pull-up/procedure turn. When you are back on the ground, get hold of the 1:50000 map and measure these points as a range and bearing from the display datum. Then when you are displaying at Little Snoring, you can get the local 1:50000, mark on the crowd datum, measure off the same range and bearing, and look for a likely feature. You will often find features that will be of use, but of course you must allow for wind rather than place blind faith in a still-air plan. Moreover, it is worthwhile ensuring whenever possible that you get a visual reconnaissance of the topography surrounding the airfield or site at which you are to display. A display rehearsal offers the best value, a long hard look from circuit height is a poor second best, but be very wary indeed of accepting display commitments at completely unknown sites. TIMING Accurate timing of course is important for the smooth progress of the whole show, but to arrive at the threshold bang on time adds that professional touch. When you only have a speed range of 130 kts to 250 kts within which to make ETA adjustments, it is useful to plan a route from the holding point to the display datum that allows corners to be cut or legs to be extended. Then with sensible use of the aircraft navigation system, combined with speed adjustment in the later stages of the run in, display times can he made to within 2 or 3 seconds. Notwithstanding the structures of the programme, it is an exceptional show that runs absolutely on time throughout. When changes take place, the aircraft with the most fuel (the heavies) are inevitably the ones that are asked to hold off and accept the longest delays. Your subsequent arrival precisely on the revised time should not only be a matter of personal pride, but will also assist the 41 CREW CO-ORDINATION over-stressed because of this as well as turbulence on windy days. Displaying a large aeroplane requires as much team work as operating the aeroplane in its tactical role. It is therefore important that the pilot practises and flies on displays with the same crew. As your own confidence grows, be sure to instil the same feeling in them. This is not what most AEOs and navigators had in mind when they joined, and they are not sitting in the comforting Martin-Baker embrace. Each crew brief must be confident and comprehensive and detail exactly what is expected of the members. If your aircraft has no look-out stations, positioning assistance cannot be expected from anyone other than the co-pilot. However, in aircraft that have astrodome/beam windows/nose/tail look-out stations, the crew can provide the pilot with invaluable clues as to how a turn onto the datum is going. Further-more, in the crowded air traffic environment of most air displays, the look-outs may be of considerable use in calling the position of other aircraft. However, beware too much chatter on the intercom, which is not only distracting but could cause you to miss a vital call. OVER COMMITMENT Finally, you must consider in advance - and honestly - whether what is being asked of you is not going to stretch you just a little too much. A straight forward display, taking off and landing at the mounting base is fine, but look carefully at those Bank Holiday tours. You may be asked to perform two, three or more times in one sortie. That could make it a three hour job, with the air traffic complications, timing problems, varying display environments, and an aircraft (to begin with at least) much heavier and less forgiving than you would prefer. Don’t succumb to the temptation to make do with a bit less fuel so that you can enter the first display at a more acceptable weight. Equally, if the aircraft is heavy, don’t fly just below the ‘g’ limit - buffet or turbulence can quickly take you over it. In fact, it makes sound sense for you to have a separate sequence ready for a heavy aircraft display. You must plan these multi-show days extra carefully, eliminate the surprises, and if you have doubts, express them clearly in good time. Better to reduce the commitment than increase the risk. POOR WEATHER Having a separate bad weather show up your sleeve is less important to a ‘heavies’ man than to a fighter pilot. The majority of your manoeuvres will be fairly flat at any rate; thus with few adjustments the same show can be done equally well with a 1200 ft cloudbase as with 2500 ft. However, you must bear in mind the potential dangers of goldfish-bowl/no-horizon weather. In such conditions you must increase the height of your turns by 100-250 ft or more. The weather parameters for the good weather/bad weather display formats are largely a matter of judgement for the display pilot and therefore have to be decided beforehand. Quite contrary to their normal practice, Met men at display airfields often tend to be optimists. They, like the organisers, want the display to be a success. Moreover, in marginal weather conditions, reported cloud bases and visibilities can be the best, not the worst. On the other hand, when displaying on a hot summer’s day in a flat calm you may experience trouble in flying into your own slipstream. Aircraft have been slightly If you have done all these things, then the show itself should be almost a formality. You know what you can do, you know what you intend to do, and you have practised dealing with the unexpected. Now practise humility. Do only that which is within your training, briefing and authorisation. Ignore with a distant smile the Mephistophelian characters, always present at those displays far from home, who will assure you that nobody else will bother with the height and proximity minima, that there are no FAA observers on the island, that last year’s Shackleton/Nimrod/’VCl0 stole the show with a vertical roll. If it turns out that they suddenly want 10 minutes rather than 7, don’t come up with some-thing new at this stage. At best, somebody will write to the AOC with a photograph and graphic description of your brilliance. At worst, the Board of Inquiry will enter its own commentary. Playing to the crowd is unrewarding, unprofessional and unacceptable. 42 ANNEX J TO CHAP 2 HELICOPTERS By Flt Lt P Lees, 1992 and 1993 Wessex Display Pilot. for instance, but you can hover, fly backwards, etc. It is worth thinking about who you are trying to impress. Most of the people who will watch your display will be lay public and very easily impressed by even very simple manoeuvres, so don’t push it to the limits. INTRODUCTION Helicopter displays before the public range from the ‘simple’ role demo to a full scale display at IAT or the like. Nevertheless, each must be planned with care and attention. Many of the back-ground factors relating to planning, preparation, practice, PR and other pressures described in previous pages of this booklet are relevant to helicopter displays. The following notes should be used as a guide to preparing for your display/role demo and are aimed at all helicopter types. Displays and role demos are considered separately. APPROVAL BY HIGHER AUTHORITY The first approval from above will probably come in signal form allowing you to practise your new sequence. Be mindful of any caveats that may have been imposed. If ‘the big man’ has questioned a particular manoeuvre, it is worth rechecking that it is possible or sensible to fly it. If you still believe it to be safe, fine. DISPLAYS PRACTICE As the build up to the display season begins several weeks or months prior to the first display let’s start at the beginning and progress from there. After initial selection of your routine, the most important factor is practice, and then more practice! Start gently though. Think about your entry heights and speeds again, set absolute limits for yourself AND NEVER BE TEMPTED TO GO BELOW THEM. Start your practices at a safe height, say 1000 ft - 1500 ft, so that any wrinkles can be identified and ironed out, and you can become fully conversant with the routine. Once you are happy at this height go down lower as soon as possible. High energy, low altitude helicopter flying is heavily reliant upon visual clues. These clues are not available at height and most flight instruments are not responsive enough to compensate, so get lower as soon as cleared. SELECTION OF PILOT AND CREW As a conscientious would-be display pilot you can’t do much about this phase except volunteer for the job. Before putting yourself forward ensure that you know what you are letting yourself in for - many days away from base, lots of paperwork, extra days at work etc... If this all appeals, then volunteer and good luck. SELECTION OF THE ROUTINE So you have been chosen to display your aircraft this year. The choice of routine is your opportunity to stamp your individual mark on the season, but how? You may have seen previous shows and been impressed (or disappointed) with some aspects of them. Think about how the display flowed, what would you change? Is the aircraft capable of more? If possible, talk to last year’s pilot and discover what he would have changed. By repeating the process a few times you will soon be down towards your legal base height and this can be as low as 50 ft for some parts of the display. Remember a couple of things about flying this low. One, there is very little room to play with if things go wrong, and two, if you fly very low and close to a large crowd only the front few rows will see you! Perhaps a more realistic compromise is 100 ft. At this stage, you will not be authorised to practise the full sequence so you will have to imagine how one manoeuvre will blend with another. Remember that you are flying a helicopter you will never be able to out-aerobat a Hawk or Tucano As you get more confident at this height, start to introduce variables. These include poorer met conditions, using different display line orientations, etc. You should aim to fly a few times, at least, in weather conditions as close as possible 43 to your legal minima so that poor weather will not come as a surprise. Vary the wind velocity angles by changing runways, this also prevents you relying on fixed visual markers unique to your base. If you are planned to display over the coast or open grass areas try to practice in similar locations. You are aiming to reach a situation where whatever happens on your first display, you will have seen something like it before. pital landing sites marked - just in case! Whatever else, confirm exactly what the organisers want from you. It has been known for a helicopter crew to be requested to fly a VIP before the start of the show to allow him to view the scene from the air. Don’t be pressurised into performing these tasks on the spur of the moment - if you don’t want to do it due to fuel, authorizations, weather, or just that it is too adjacent to your slot time -DON’T DO IT. PRE-DISPLAY PLANNING OK, so now you are the fully checked out, approved and qualified display pilot. What next? After practice, the biggest part of your preparation will be paperwork. Every show that you attend will require information. This ranges from planned arrival time, display length, accommodation requirements, fuel requirements, departure details, personal details about you and your crew, facts and figures about the aircraft and its role and a myriad of other items. Each set of organisers has a different questionnaire format and the list seems endless. A good idea is to produce your own fact sheets covering yourself, the display, the aircraft and its role. Finally, if you can plan to arrive the day before, do so. This is advantageous for several reasons. You get to see the display area and are able to think about your display orientation, you can iron out any minor problems with organisers and, last but not least, you actually get there. Nothing is more frustrating than having a CAVOK met report from the show venue when you have 8/8 clag at base, or have to negotiate an active front en route, etc. Plan ahead and try to get there early. THE BIG DAY Here you are then, well rested, relaxed and fully prepared for your first ‘live’ display. What is there left to do? Probably not a great deal if you have planned ahead correctly, but even the tiniest task will take on mammoth proportions in your highly aroused state. So here are a few tips. Ensure that when you write to the organisers you brief them fully on rotor downdraught, otherwise you could end up parked close to a light aircraft, unable to lift-off and show the world your wellrehearsed display. If your helicopter can ground taxi, say so, adding any restrictions you may have. Ensure you get to the briefing on time. If you are too early you can always grab a coffee and wait; if you are late you will miss something. Listen carefully to all the brief- has your slot time changed and become unworkable? If you need 20 minutes to get airborne after starting rotors check that no one has slipped a parachuting display into this period. Check the wind and work out how it will affect your sequence. Confirm that ATC frequencies have not changed - sometimes the published frequencies for a station are altered for the duration of the flying programme. It sounds ludicrous but it has happened. Several organisers may ask whether you are SAR capable in the event of a major disaster on the day. Only you can answer that, but if you have a stripped down machine and no crew then the answer is probably ‘no’. If you are not SAR capable say so now, or else you could find yourself planned as an integral part of the disaster plan. It is worth remembering that if you are at a large show, and maybe a mile or so from your helicopter when an accident happens, you will be next to useless anyway. It is better to say no and be a possible bonus should circumstances permit, than vice a versa. Once you are satisfied, fully brief your support personnel. Check that they know what time to arrive at the aircraft, again give yourself plenty of time. Don’t get in a situation where you have to rush checks and risk missing something. Plan your maps carefully - most helicopters are not capable of flying above, or through, a summer weather front with associated thunderstorms. Make sure you know where you can get fuel at weekends should you need it. This may sound obvious, but it is better to be prepared than embarrassed. Even if you are not a declared SAR asset, it is worth having local area maps with hos- As your flying time approaches, re-check all the details. Some of the larger shows, IAT for example, have several hours of flying planned and things can change during the day. 44 OK, so you’ve done all the pre-flight, got airborne and are now ‘off and running’. It is not unknown for things to change even at this stage so be ready for it. Analyse the ‘real’ wind now you are flying, look at the crowd line and display line and plan to fly just as you have practised. DO NOT get tempted to modify your display dramatically to adapt to local conditions or inputs, and if you are not happy, land. At worst, no one will know whether you really did or didn’t have a minor problem, but everyone will know if you press on and muck it up. ROLE DEMOS The helicopter has unique handling qualities that invite it to be used as a PR vehicle for the RAF at small fetes and shows throughout the summer. These are not full-blown displays, but role demos. Rules concerning role demos are often, deliberately, less strict than those for displays, thus several different types of event can be supported, with the operating crew being relied upon to use common sense and flexibility. Many of the points raised in the display section are pertinent here too. However, there is no format, approved sequence, practices are not always required and a special pilot/crew is not always employed. Despite all this do not be led into a false sense of security. Finally, you have flown your sequence to perfection and the crowd loved it and you are feeling great. Don’t relax. Someone else is just starting his run-in and wants you out of the way. Fly your planned departure and be on the lookout for things that have moved since you got airborne. Accidents can, and have happened whilst helicopters are taxiing. Once you have shut down you can relax. Many role demos are organised on a small scale, often by a local charity, and occasionally little or no aviation knowledge is present. Venues can be far too small, surrounded by vertical obstructions and totally unsuitable. It is not uncommon for there to be no RT comms available and the helicopter is the only thing flying. The organisers will be incredibly keen, and very persuasive, that you show up to ‘do something’. Resist the temptations to compromise the rules and your safety in an attempt to please those on the ground. DEPARTURE On leaving the show site do not be tempted to do anything silly - I know YOU wouldn’t, but others have! Leave sensibly, get back to base and tell the Boss how great it all was and how much you are looking forward to the next one. FINAL POINTS If you are going to perform a SAR demo make sure the ‘survivor’ is well briefed, his kit tested and the dinghy will inflate. Remember the possible falseness of the scenario if you are over a field, or the potential risks if you have a man in the sea at a coastal show. Try to keep it interesting, the tiny blob that is a helicopter several hundred yards away will not keep people’s attention for long. The best way to demonstrate SAR capability is for real - over a boat or near a cliff. Often this is impossible, so do not get too tied down with authenticity. Be prepared for organisers to throw a couple of fast balls. To you it is another show, to them it is one of the highlights of the year, perhaps with much prestige at stake. Some fast ball examples are: requests that you fly an altered sequence in weather below your minima, that you extend/ shorten your routine by a couple of minutes, let VIPs and/or the public look around your helicopter, put on a mini show the next day, etc. If you don’t have a formal, approved poor weather show, don’t fly an impromptu one. (Better to plan one in January to cater for the British summer!) Other requests maybe possible but could compromise your schedule. Before you fly, do not allow yourself to be distracted by a ‘special favour’ to the Stn Cdr. Either suggest an alternative time or politely decline. Similarly for SH demos. The natural SH environment is moving fast at low level, trying not to be seen. Try to identify a method of portraying this role, but let the crowd see you. If you decide to use an under-slung load, check it is correctly rigged. Also check that there are safe approach and departure lanes. Lastly, if, despite all this, you do not enjoy yourself quit. Display flying should not become a chore for that is when it gets dangerous. If you intend parking the helicopter at the event for any length of time, ensure that it is properly guarded. The public has an uncanny knack of being able to remove bits as souvenirs, or of acci- 45 dentally breaking essential components, so only let them near your aircraft under close supervision. Finally, just as for display flying, if you don’t like the way things are going, stop. It could save some very red faces later. 46 ANNEX K TO CHAP 2 THE TYPHOON Sqn Ldr Matt Elliott provided these notes from his experiences of the RAF’s first years of displaying the Typhoon. 13. 14. 15. 16. 17a. 17b. These notes are written to try and pass on some of my experience having displayed the Typhoon for 2 very enjoyable seasons (2005 & 2006), but they must be taken in some context. My first season was limited to displaying 2 seat ac only, and during my second season I could not guarantee getting my hands on a single seat ac every weekend; therefore all my gate heights and assumptions are based on the lowest common denominator – the two stick tub. Along with this, both seasons were flown with FCS Phase 3 software, which is/was some way short of the ultimate ac performance. If you are lucky enough to guarantee a single seat ac with FCS Phase 4 software (or whatever the future holds), then your display may well include more dynamic manoeuvres than these. The display used approximately 2,400 kgs of fuel from a display venue take-off, less if starting from an airborne arrival. Thus at some venues I was able to take-off with only 4,000 kgs total fuel, making the initial loop that much tighter (and easier!). The display could also be flown with a centre line fuel tank fitted, as long as the tank was empty prior to starting the display – useful for displays that you either can’t, or don’t want, to land at (or close by). The mechanics of the manoeuvres that worked for me are as follows: My premise on putting the display sequences together was that someone could stand at display centre and see the ac at all times whilst having to move his or her head as little as possible, and so I tried to keep the routine as tight as possible (by staying slow enough to be ∙ limited rather than g limited most of the time), and also making use of the 45° axis as seen from crowd centre. The jet is also fantastically loud in full reheat, so comparisons of full power noise and idle power silence can be used to good effect. Loop from Take-Off: During my first season I flew this from a rotate speed of 125kts, and then nursed the tub into the vertical trying desperately to avoid an ALSR engagement (not always successfully!). The trouble with this technique was that at relatively hot and high (for the UK) airfields the performance of the tub was barely sufficient. A much more satisfactory technique (even in a single seat ac) is to keep the ac on the ground until 160kts and then rotate – no one will notice that you have ‘cheated’ slightly to gain some more energy. The rotate can be flown with Full Back Stick (FBS) as the FCS will limit the ac performance with the gear down. As the gear travels ease back the stick to capture 15 ∙ and hold this until you are through the vertical by at least 30° - you should be at 230kts through the vertical, but don’t accept any less than 200kts as this will inevitably lead to an ALSR engagement (at FCS Phase 3). The ∙ control is the critical path, any more and you will not accelerate in the initial climb. Once through the vertical and with the knowledge that you either have already, or are going to, capture your gate height and speed you can back stick the ac to perform a tight(ish) loop that you can easily recover by the base height. My personal gates for looping manoeuvres were height greater than 3,200’ and speed less than 250kts at the apex. 2006 Display Sequence 1a. 1b. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Canadian break from inverted into 270° flat turn. Derry turn towards crowd centre Square Loop. 60° Off-Crowd VV reversal. Hi Speed pass into Vertical departure. Hi speed pass into Reverse break to land. Take-Off into loop. 100’ Arrival (430kts) into loop. 45° Off-Crowd VV reversal. 100’ 450kt pass. 90° Off-Crowd idle VV reversal. Slow Speed ‘arc’ from 45° on-crowd to 45° off-crowd (110kts, 500’). 1⁄2 Cuban 45° off-crowd. Oblique Loop. 1⁄4 Clover into Pirouette. Loop towards crowd centre. Min radius level 360° turn. 45° off-Crowd VV reversal. Inverted 4 point roll. 47 If you have to capture a 230m display line that is offset from the runway, then kick 10° towards the display line once above 50’ and roll 10° towards the display line once in the vertical. This should get you laterally displaced from the runway and parallel to it once you are at the apex of the loop. This method is also useful for strong on-crowd cross wind components. Slow Speed Arc: Decelerate the ac on-crowd from the previous manoeuvre to 120kts pointing at crowd centre. Below 150kts the ∙ will quickly build to max available at idle power, so anticipate this to catch 120kts (holding FBS) with power. I held this at 800’ on-crowd, using the power to stop any sink rate, with the intention being that the crowd saw the ac planform from below almost ‘hovering’ towards them. Before you bust the 230m line (easy with an on-crowd wind and limited manoeuvre capability at this attitude) turn through 90° at crowd centre to depart on the opposite 45° axis. 100’ Arrival into Loop: Much easier, but doesn’t look anyway near as impressive! Arrive at the datum at 100’ and 430kts, use FBS and ensure that you capture your gates. Continue the FBS pull until the ac is pitching up through the 40° nose down attitude, only then be tempted to ease the pull to level off at a base height if you have height to spare (the same can be said of all the looping manoeuvres). 1⁄2 Cuban: Entered from the end of the slow speed arc. Select full reheat, and as it bites pull using FBS to 70° nose-up. The ac stabilized at 170kts on the way up from my normal entry speed and weight. At 1500’ roll inverted – the technique I used was to start the roll and almost immediately push to full forward stick as the ac started to move. Capture 60° nose-up once inverted, and at a minimum of 2500’ pull FBS. Ensure that the gates are met at the apex and then continue to pull through. 45° Off-Crowd VV Reversal: Outbound on the 45° axis, pitch the ac using FBS to 45° nose-up and then initiate full roll control in the opposite direction to your intended turn whilst holding FBS and full power for 270° of roll – essentially a Derry Turn. At FCS Phase 3 the ac rolls around its velocity vector during the manoeuvre; this is more pronounced at slower speeds, ideally 250kts. The manoeuvre can be flown at up to 400kts, but is nowhere near as tight a turn. The pitch can be started below 500’ (I used a limit of 300’) so long as the ac is above 500’ prior to rolling through 90° of attitude. Oblique Loop: Entered at 300kts, use full reheat throughout manoeuvre. Roll to 45° off-crowd and simultaneously pitch to 30° nose-up. Ensure you are parallel to the crowd line at the apex (approx 1,500’) with the nose coming down through the horizon; capture no more than 25° nose-down to complete the manoeuvre. 100’ High Speed Pass: Nothing much to say, other than that you don’t need to be at max speed by the start of the crowd line. Keep the ac tight to the crowd and accelerate down the line – the crowd can then see the ac accelerate and get an idea of it’s performance. 1⁄4 Clover into Pirouette: Pitch up at 350kts using FBS and full reheat into the vertical, and roll 90°away from the crowd at 1500’ to place the underside of the ac towards the crowd. Pitch back (relatively gently) to be inverted at 4000’ flying perpendicular to the crowd line – select idle power when required to be at 250kts when level. Roll the ac to 90° of bank towards crowd centre and ‘arc’ through 90° of turn to end up displaced from crowd centre by 4000’ and parallel to the display line, at less than 250kts (ideally 200kts) and a height of 4000’. Simultaneously apply FBS and full rudder towards crowd centre at idle power, and maintain this until the ac is pointing vertically down and parallel to the crowd in the opposite direction to that at which you started. Roll to place the lift vector towards crowd centre and at your gate (mine was 2500’ minimum and a maximum of 250kts) pull FBS whilst selecting full reheat. 90° Off-Crowd VV Reversal: After my attempt at using an on-crowd idle barrel roll to slow in to the slow speed pass in my first season backfired somewhat at RIAT, I used this much simpler (and safer!) technique during my second season. At the end of the high speed pass, aim to have at least 450kts at the end of the crowd line. Select idle power and max perform the ac to 90° offcrowd, then immediately perform a VV Reversal/ Derry maintaining idle power to point back at crowd centre. This will then leave you at about 180kts and 45° displaced from crowd centre, the entry parameters for the slow speed arc. If you enter the manoeuvre at less than 450kts, you may need power during the later half of the reversal to avoid an ALSR excursion. Loop towards Crowd: Watch any on-crowd wind 48 component – it’s easy to get caught out! Pitch into the loop from the B-axis with minimum of 250kts, using a maximum of 18∙. If above approximately 330kts then FBS can be used throughout, the gates remaining as before. To break the oncrowd vector on exiting the loop, I rolled through 90° and used full in-to-turn rudder as well as FBS to ‘skid’ the ac away from the crowd line whilst still nose down. RtS times for inverted flight as published. When 2500’ displaced from crowd centre on the other side than that from which you started, select idle power and pull FBS until 90° nose-down pointing at the 230m line. Hold this attitude until reaching either 2500’ or 250kts, then select full reheat and FBS to level out pointing back along the display line. Again, this gate is generous for a single seat ac but will work for the tub as well. Min Radius Turn: Use FBS and full reheat to stabilise at 230kts and 300’. Don’t select reheat until sub 270kts if entering from a faster speed as the ac will take some time (and most of the turn) to decelerate, and so will not be a MIN radius turn! To compensate for on or off crowd winds during the manoeuvre, roll 5° towards or away from the crowd whilst in the vertical, or track wing low whilst inverted. Remember that roll stick inputs have to be ‘reversed’ to get the same effect whilst inverted to that given in level flight – it can feel very odd to input roll towards the crowd to then track away. 4-Point Roll from Inverted: Aim to get lined-up with the display axis early, with a minimum of 300kts but ideally 350kts; hold this speed with use of the autothrottle. Roll inverted prior to the start of the display line, then bunt from the inverted to 4° climb followed by rolling to 90° attitude whilst simultaneously feeding in full rudder control. The FCS will not hold the nose up on the knife-edge, hence the initial bunt, nor will it enable the ac to track in a straight line without bunting whilst holding the 90° attitude. Once the nose has dropped to the horizon roll upright, followed by a pitch to 4° climb before the second knife-edge. Roll out inverted and Canadian break from this attitude through 270° to track away from the crowd line. Vertical Departure: Roll through 360° whilst in the vertical to show the impressive roll rate of the ac. Pick a feature first (sun, cloud) to enable the roll to stop crisply back at the start heading else you will get disorientated. Avionic Set-Up: Have the HSI on the PA format with the HSI Course Marker orientated to the display axis and the Heading Marker on the B-axis outbound heading. Relate this to crowd centre by using Steer Hold on a nav point entered at crowd centre. I also had the fuel page permanently on the left MHDD, as 5000kgs of fuel can disappear very quickly! Derry Turn Towards Crowd Centre: Position the ac pointing towards crowd centre on the B-axis at 300’ with at least 4000’ lateral spacing from the 230m line on a calm wind day. Pitch up to 50° nose-up (or more if you need to stop any unwanted closure with the display line) and perform a VV Roll through 270°. End the manoeuvre by descending back to 300’ along the display line. If in doubt, use more lateral spacing at the start as any on-crowd wind will exacerbate your problem with closure to the line – I bust my line enough times to learn the lesson! Good luck, and ENJOY yourself! Square Loop: Arrive 2500’ displaced from crowd centre along the display axis at 350kts and 300’, pitch using FBS and full reheat to the vertical and hold this attitude until 3000’. At 3000’ select idle power and pull using FBS to the inverted to track back along the display line at 4000’. Catch the speed at 200kts with dry power; you may get a FUEL LOW caption/audio warning at this point as the fuel computers cannot calculate fuel usage at differing power settings whilst inverted – trust the 49 50 ANNEX L TO CHAP 2 THE SPITFIRE AND HURRICANE THE BBMF SPITFIRE and HURRICANE LIMITED FLYING HOURS Provided by Sqn Ldr Clive Rowley OC BBMF, 2004 Accurate and detailed planning is essential to the successful completion of displays and flypasts. BBMF fighter pilots work in a singleseat cockpit with no modern navigation aids; they have to transit VFR below cloud or in sight of the surface (this is an engine failure / forced landing consideration and the aircraft do not have an IFR clearance) and they often arrive at a venue in close formation. Sometimes the first opportunity that a pilot gets to orientate themselves with the display line and datum is as they break out of close formation with only 30 seconds and a positioning turn to get their bearings before commencing their individual display. Although the pilot may be expecting to be a formation wingman and to be led to the display venues, aircraft unserviceabilities may result in him becoming the leader or going as a singleton. Thorough planning is therefore, self evidently, a very necessary requirement. In addition, BBMF sorties frequently involve multiple tasking, perhaps 2 full displays and several flypasts at different venues utilising the full fuel capacity and range of the aircraft. A BBMF fighter pilot’s pre-flight planning, therefore, typically takes up to 4 hours for every BBMF sortie and, of course, this has to be done in the pilot’s own time to fit around his primary duties. On occasions the full details of display venues and timings are not provided to the Flight in adequate time to ease this pre-flight planning burden, despite the best efforts of the BBMF Ops staff. This is an area where display organisers can either make the lives of the BBMF aircrew much easier or alternatively more stressful. One of the principal factors governing BBMF flying operations is the seasonal limit on flying hours, intended to ensure the long-term preservation of these historic aircraft. In practice this does not present a problem, merely a challenge, but one that is not always fully appreciated by those who do not have to work within it. Each display season is planned jointly by the Participation Committee and the BBMF to wring the maximum possible benefit from every hour in the air. Each sortie will be planned to appear over as many venues as possible and sortie durations of over 2 hours with 5 or 6 mixed displays and flypasts are not uncommon. Excessive use of flying time due to The lucky few pilots who are permitted to display the ‘Fighters’ of the BBMF are extremely privileged, after all most pilots dream of having the opportunity to fly a Spitfire or Hurricane. BBMF flying is sometimes exciting and often rewarding; it is also just plain old-fashioned fun! However, this ‘dream come true’ can also be very challenging, occasionally even nerve racking and, like all display flying, could be potentially hazardous. The BBMF ‘Fighter’ display sequence is intended to allow the public to see and hear these rare aircraft in flight, not to demonstrate the aircraft’s full capabilities or the pilot’s skill. In addition, the BBMF is dedicated to the long-term preservation of these historic aircraft and therefore operates them with power settings and g limits much reduced from the original design limits. The BBMF ‘Fighter’ display sequence is therefore very simple and quite short. It consists of a series of linked wingovers, steep turns and low passes to the minimum cleared height of 100 feet. The only truly aerobatic manoeuvres are the ‘derry wingovers’ and the final climbing aileron or ‘victory’ roll. The sequence can be flown either as a singleton or, with only minor amendments, as a ‘synchro pair’. All manoeuvres are flown using between +1 and +3g (+4g never-exceed for Spitfires only). The simple display sequence has the advantage that it can easily be flown left or right handed, it requires no alteration to fit into the 3-ship (Lancaster, Hurricane, Spitfire) display and can also be flown as a ‘synchro’ display if required. The following notes do not attempt to detail Spitfire or Hurricane flying techniques nor how to fly the BBMF ‘Fighter’ display as these skills are taught to new BBMF fighter pilots during their conversion and display work-up. However, some of the specific problems involved in displaying these historic, single-engine aircraft are described below. An understanding of these points could be useful to other display aircrew and air show organisers and this, in turn, may be helpful to the BBMF. 51 ‘slack’ planning by the aircrew, e.g. over-generous holding time or unnecessary navigational detours, is actively discouraged. With all this effort to minimise the wastage of flying hours and to maximise their value, requests to hold-off at air shows or to prolong airborne time unnecessarily may meet with little sympathy from the BBMF crews unless there are very good reasons. This is not personal nor is it ‘bloody mindedness’ and any assistance that can be provided by organisers or other display aircrew to avoid wasting valuable flying hours will be much appreciated. The ‘bottom line’ is that wasted airborne time could result in the cancellation of someone else’s display or flypast later that season. mobile is switched off or has no signal. The precise timing of events is not of paramount importance to the organisers of such shows. It is a good idea in these cases to make a positive effort, both in the planning stages and in the execution, to de-conflict the display/flypasts with any animal-related events on the ground, e.g. the pony rides, the dog obedience show or the sheepdog demonstration. An arrival at low level and high speed, smack on time may be cause for celebration inside the cockpit but might not be appreciated to the same degree by those on the ground chasing bolting ponies, sheep or dogs whose obedience has suddenly deserted them. BBMF fighters therefore tend to arrive at such venues from altitude if possible, perhaps even spiralling down in the overhead before commencing the display or flypast, giving the people on the ground plenty of warning of their arrival. This technique has the added benefit of allowing the pilot to recce the site for any unexpected obstacles. DISPLAY SITE HAZARDS The Enthusiast. When operating from ‘away’ airfields especially those hosting a display, one of the greatest hazards facing the pilot of an historic aircraft is the persistent enthusiast and, to only a slightly lesser extent, the air show video cameraman. One well-known and very experienced civilian ‘warbird’ pilot swears by remaining ‘incognito’ to counter this hazard, dressing in such a way that no one would ever guess (or even believe) that he was a pilot, he dons his flying overalls only immediately before entering the cockpit. Unfortunately, that option is not open to military aircrew who must dress the part and accept that being pestered goes with the territory. This is no problem when time is available and the pilot is outside the ‘sortie bubble’. However, it can be distracting and even, potentially, a flight safety hazard once pre-flight preparations have begun. The best solution to the problem is always to leave more than sufficient time for each activity especially those in public areas, e.g. sortie briefing at the aircraft or preflight ‘walk round’, and to avoid becoming rushed. The only place that a pilot cannot be disturbed is in the cockpit; strapping in 5 minutes earlier than needed provides an invaluable few minutes of thinking and ‘focusing’ time. AIR DISPLAY SPECIFICS Engine Overheating. One of the perennial problems of operating BBMF fighter types, particularly the ‘Baby’ (MkII and MkV) Spitfires, is the tendency for the engines to overheat rapidly on the ground. (To a lesser extent this affects all marks of Spitfire in the air at display power settings or with the undercarriage down). When operating from the display airfield, BBMF pilots are under remit to ensure that the display director and ATC are briefed on the likely engine overheating problems. Typically, on a hot summer day a ‘Baby’ Spitfire will overheat in approximately 5 minutes from engine start and it would be necessary either to take-off within that timescale or to shut down. Clearly, once the show timing has been confirmed, clearance to start commits all concerned to a take-off within the pre-briefed time scale or a ground abort will ensue. This overheating problem also applies after landing and very long taxy distances, ground holding or snails-pace ‘follow me’ vehicles could lead to having to shut down on the taxyway, possibly causing an inconvenient blockage. Off-Airfield Venues. The BBMF frequently flies full display routines or flypasts, as a formation or as a singleton, at rather less well-defined and/or poorly controlled venues such as summer fetes or veterans’ reunions. ‘Dog and pony’ shows present a variety of problems; even finding the site in the first place can prove an interesting challenge. Typically, there is no R/T contact with these shows, sometimes even pre-sortie telephone contact is impossible as the organiser’s Cockpit Noise Levels and R/T. At display power settings, the ambient cockpit noise levels are high in a Spitfire and extremely high in a Hurricane. This can make it difficult for the pilots to hear the R/T. Please rest assured that if the response to your R/T transmission is a “Say Again”, this is not (entirely) down to the age and deafness of 52 the BBMF pilot. One of the standard points in the BBMF written brief to air show organisers is a reminder of the possible need to fire a red ‘very’ cartridge to stop the display should this be necessary and if an R/T call is unsuccessful. Unnecessary R/T transmissions on the display frequency should be avoided during BBMF displays, partly because it may be misheard for the reasons above and also because, during formation displays, the radio is needed for coordination between aircraft in the team. BBMF fighter aircraft are equipped with VHF-only radios and a dedicated VHF display frequency is therefore highly desirable at all displays and essential for team or ‘synchro’ displays. clearing the runway (onto the grass if necessary). If, after an engine failure, it were not possible to reach the runway for a forced landing, the pilot’s next choice would be to force land, probably wheels-up, on any suitable grass area. Holding Areas. BBMF aircraft usually ask to set up a 4-minute hold approximately 2 minutes out from the display datum prior to the run-in to display. During a BBMF team display the aircraft waiting their turn for their individual displays, hold crowd rear at heights (depending on the cloud base) between 500ft and 2,000ft. From a BBMF perspective the location of published display holding areas is often unacceptable and the crews have to negotiate for dispensation. Because the fighter aircraft are single-engined, the pilots will wish to avoid holding over water, built-up areas or any terrain that is unsuitable for forced landing. In general, the fighters will want to hold above 1500 ft, this being ‘Low Key’ for a forced landing and also the minimum bailout height. The regulations governing BBMF display flying do not permit any helicopter pleasure flying from anywhere on the airfield during the display, even from crowd rear, as this is where the BBMF aircraft hold and run-in from during a team display. Weather Limits. The crosswind and maximum wind strength limits for the BBMF aircraft are restrictive compared with most other types because of the directional control difficulties generated by the undercarriage arrangement on the ground. In addition, the BBMF will not display its fighter aircraft in rain as this causes damage to the wooden propellers. With the long-term preservation of these precious aircraft in mind, these sensible limits mean that, on occasions, the BBMF will not be able to appear when others have no problems doing so. Circuits and Landings. Because of the need to remain within gliding range of the airfield from downwind and to counter the poor view over the aircraft’s nose on the final approach, BBMF fighter pilots fly tight circuits and curved approaches to land. They will not take kindly to being asked to extend to fit in behind other aircraft flying long straight-in approaches or ‘bomber’ circuits. Finally, landing these aircraft neatly is really not that easy so please feel free to ‘banter’ if any are less than perfect whilst, of course, continuing to make no mention at all of those occasions when a pilot gets it absolutely right so as not to encourage over-confidence or over-inflated egos! Runway Availability During Display. An engine failure during the display would transform a BBMF fighter into an instant and not very efficient glider with a rate of descent in the order of 2,600 fpm. In most display circumstances this would allow no more than 30 seconds before the aircraft reaches ‘terra firma’ one way or the other. It is therefore essential that the runway is kept clear during BBMF displays to permit a forced landing should it become necessary. If other aircraft are required to be on the runway, perhaps lining-up for takeoff or backtracking, then it is essential that they are listening out on the (VHF) display frequency and could react to an emergency immediately by 53 ANNEX M TO CHAP 2 THE TORNADO My concept of display flying is to keep the aircraft as close as possible to the crowd centre, always be manoeuvring, and generating the largest amount of noise you can! For simplicity the displays were designed to the same geometrical plan/form, so that you could easily switch from one to the other, which was really useful in deteriorating weather. Also, you finished heading in the same direction as you started, so the display could be finished quickly with a break to land if you were short of fuel or time. The rules were a 5000ft cloudbase for a full display, 1500ft for a rolling display and 1000ft for a flat display. The minimum height for aerobatic manoeuvres was 500ft, 300ft was used in turns and 100ft for flybys. people forget about their hamburgers but remember, wings must be level until 100ft to satisfy JSP550. The Tornado looks good at low speed in a tight turn near the ground. Lift off at crowd centre at 180kts which takes about a 3000ft. I maintained 15 AOA and 240kts until 60° before roll-out heading. Flaps then selected up with thumb on manoeuvres for crisp roll out and accelerating to 330kts for the cuban. Looping. You have to ‘loop the loop’ to keep the punters happy. To change the theme slightly I included an oblique loop, half cuban eight and a half horizontal eight. Safety gates are all important and I used the nav to confirm ‘good gate’ before I continued. He used his head down altimeter for this. 5500ft was the gate for the half THE DISPLAY SEQUENCE FULL ROLLING Take-off into Min Radius/Max Rate Turn Take-off into Min Radius/Max Rate Turn 1/2 Cuban Eight Derry Wingover 67° Wing Flypast 67° Wing Flypast Derry Wingover Derry Wingover 4 Point Roll 4 Point Roll 270° Turn 270° Turn Canadian Break toward crowd & Derry Canadian Break toward crowd & Derry Slow speed flypast & turn away Slow speed flypast & turn away Slow speed steep climb from crowd Slow speed steep climb from crowd Dirty Barrel Roll Dirty Barrel Roll 1/2 Horizontal Derry Wingover Oblique Loop Canted Max Rate Turn Derry Turn Derry Turn Slow Roll Slow Roll Derry Wingover Derry Wingover High Speed Pass High Speed Pass Vertical Departure 67° Wing Break Those are the sequences and what follows is how I did it. Bear in mind that these techniques (and more importantly, safety gates) work for me; however, you should find out what works for you before you get too close to the ground. Cuban with a max speed of 250kts. The aircraft was then always max performed through a 90° nose down gate of 3500ft / 300kts to 40° nose down gate of 1500ft. Only then was the pull let out setting up for the 67 wing flypast. Take-off. This has got to be impressive to make Rolling. The secret to performing slow and hesi- 54 tation rolls in the Tornado is your initial attitude. With the CSAS fighting you all the way in knife edge flight, the best you can do is to slow, with rudder, the speed at which the nose drops. The roll starts at 2° nose up, falling to 2° nose down when inverted. Push the nose back above level then start the process again to completion of the roll. Imagine flying mini barrel rolls, but keep it as flat as you can. to 3500ft before rolling out and pulling into the oblique loop. Although you cannot have a gate for the oblique loop, I used to aim for 30° nose down at 1500ft which seemed to work well. Wind. There’s already a lot of wind in this article you may say. Well strangely enough, even in a high performance jet, wind is still a big player as far as display flying is concerned. The normal display axis is 230 metres from the crowd line. Imagine a 20kt on-crowd wind and say a manoeuvre such as a 360° turn, which if it took 30secs to complete would result in a downwind drift of 280 metres; very embarrassing if not allowed for. Wind has to be compensated for in virtually every manoeuvre performed. In the Tornado it was convenient to have the wind displayed on the EHDD (Pilots Electronic Head Down Display) to back up any ‘feelings in the water’. The no-wind ground track was plotted on a 1:50,000 map and ground features used throughout the display. The cadence of the display was equally important adding 1sec to the outbound derry heading for every 10kts of on crowd wind component which is all you have over the sea. Dirty Barrel Roll. I flew the dirty barrel very procedurally as I felt it was the one manoeuvre that could give you a significant difference in nose down attitude for a minor change in pull and roll rates. It was started with an offset of 20° away from the display axis so the roll could be completed towards the crowd. I started at 220kts with gear down, mid flap and probe out and used full reheat as I pulled to 20° nose up when the roll was started topping at 30° nose up. Roll cadence was varied to be inverted as the nose came through the horizon and I never allowed the nose to drop below 30° nose down. I also used a gate height of 30° nose down and 1300ft. Gate Heights. As mentioned earlier the gate heights I used were: 5500ft before pulling through, 3500ft at 90° nose down, and 1500ft at 40° nose down. Find your own heights through trial and error at height, and stick to them. It can be done tighter; however, in over 100 displays and practices, my underpants stayed the same colour throughout the display! For the ½ Horizontal, I pulled inverted to 60° nose down which I held And finally. The Tornado, although not exactly the most agile jet on the circuit, is a good display aircraft. It’s noisy, looks impressive with the wings back at 600kts and turns well enough for your average airshow punter. Know and plan your displays so that you don’t get put off by the many distractions and pressures that will undoubtedly appear during the display season. 55 ANNEX N TO CHAP 2 THE TUCANO “The Tucano is just like a Jet Provost but with a propeller on the front”. This is a quite common comment heard when people are discussing the merits of the Tucano in comparison to its venerable predecessor the Jet provost. However, this statement is not true and the Tucano is a very different aircraft, requiring fresh ideas to show it at its best. In display flying especially, the Tucano can turn tighter, climb quicker and carry out manoeuvres that were not possible in the Jet Provost. the most important factor; for this reason, some esoteric manoeuvres were dropped from the display. One such manoeuvre was a stall turn flown facing the crowd with the undercarriage down during the pull up. With a 0g to + 1.7g limit during retraction, the manoeuvre was too slack and, anyway, nobody seemed to notice the undercarriage from the ground! When I started preparing a Tucano aerobatic display sequence I had less than 30 hours on type. The display was, therefore, based primarily on what I had previously flown in the Jet Provost. Added to this was a list of Tucano manoeuvres that, after practice and post-flight discussion, were thought to be suitable in a low-level display. The guidance given elsewhere in the Display Flying Notes was invaluable and I followed the recommendations about sequence construction very closely. What a manoeuvre looks like from the ground is A very tight turning ability (300m turn radius). The final display was centred around three outstanding display flying attributes of the Tucano: A short take-off run and quick acceleration, allowing a take-off straight into the display. A short landing run which can be used to finish the display. Close liaison with my supervisor and other ‘experts’ from the crewroom produced the following 5 minute sequences for the 1990 season: Full Display Rolling Display Take-off 1/2 horizontal 8 Take-off climbing turn Aileron roll Slow roll 1/2 hesitation Cuban Max rate turn Aileron roll Reverse wing-over 3/4 loop 1/4 roll down 4 pt roll Noddy stall turn Derry wing-over Canadian break, max rate turn Aileron roll (45 degree line) Stall turn (45 degree line) Turn aileron roll (45 degree line) Canadian break max rate turn Wing-over Hesitation stall turn (45 degree line) Barrel roll Outside turn 180 degree max rate turn Knife edge bridge, 1/4 roll down Slow roll Slow roll Reverse wing-over 180 degree max rate turn 'Spectacles' (360 max rate turn, inverted run 360 max rate turn) Aileron roll Wing-over 1/4 clover Oblique loop 90 degree max rate turn Inverted run Inverted run 235 degree max rate turn Reverse wing-over 45 degree Outside turn Land Reverse wing-over Land 56 The tight turning ability is a feature of the Tucano which should be utilised fully when designing a sequence. The display can be very compact and the crowd can watch the aircraft perform immediately in front of them. Also, because the aircraft is fairly quiet, it is desirable to keep the display as close to the crowd as possible. at low speed and flight idle, a feature that can be used to restrict speed build up in the vertical. It can also be used to allow a steep approach or a rapid deceleration prior to landing where the airbrake is not very effective. Listed below are details that might be of help in flying some individual manoeuvres: FLYING THE DISPLAY Stall Turn. Entry speed is 150 - 160kts. If fast, pull up with flight idle - bringing the power up as you reach the vertical. Yaw at 60kts (to the left) to reduce unwanted sideways movement (bridging). At low-level the Tucano can be displayed at low speed; this keeps the manoeuvres tight, allows a large number to be flown and restricts the top height of the full display to 2300ft. The speeds for the display range from a minimum of 120kts for the slow roll after take-off in the rolling sequence, to a maximum of 220kts for the ¾ loop in the full sequence. Most manoeuvres are flown in the speed range 160 - 190kts. This is ideal for turns at 180kts, which coincides with 6g and the light buffet. For stall turns, keeping the speed low is vital to restrict the time in the vertical; 150-160kts is ideal but a stall turn can easily he flown from a pull up speed as low as 120kts. Noddy Stall Turn. Torque can be used effectively to aid the yaw rate - nod left (full power), nod right (reduce power), nod left (full power). If a stall turn hangs, judicious use of power can be used to provide slipstream on the rudder. Knife Edge Bridge, Stall Turn. Pull up at idle to 60° nose up, roll right to 90° AOB and keep the nose up with rudder increasing to full deflection. At 80kts yaw down to the vertical. The manoeuvre must be flown using left top rudder to hold the knife edge, otherwise insufficient rudder is available to counteract the torque. Gate heights are vital for low-level display flying. In the Tucano I used 1800ft msd for a pull through from inverted, and 1200ft msd from the vertical for a 500ft base height. These gates were absolute minimums, while still allowing adequate safety margins, and who in the crowd will notice if you commence pull out 100ft high? Take-Off/Slow Roll. Accelerate the aircraft to 100kts on the runway, then rotate quickly into a climbing turn (NB tyre limiting speed of 110kts). On cleaning up beware of pulling too much ‘g’ as the gear will stop retracting. On reaching 500ft start a slow roll at approximately 100kts and accelerate to 140kts during the roll. The Tucano has limitations when flying inverted and, if negative ‘g’ is used, the oil system recuperation times are quite long. If a negative ‘g’ manoeuvre of over 10secs is flown, the recuperation time is twice the inverted time and after 3 consecutive minimum recovery periods an additional 60secs is needed. It is very important to note here that a stall turn entered from 170kts gives 15 seconds at less than + 0.5g. A hesitation or a noddy stall turn (from 170kts) gives 18-20 seconds. Hence, another reason to keep entry speeds to a minimum. Analysis of the ADR can he very useful in finding out whether the proposed sequence is sailing close to the wind! Take-Off ½ Horizontal 8. Hold the aircraft down, until 170kts (approximately 5-6000ft from brakes off), then pull 4-5g to commence the loop. The aircraft tops at 1200ft and the roll out is commenced at 900ft levelling at 500ft; it is important not to commit the nose too low. Max Rate Turn. An entry speed of 180kts allows at least 5g to be sustained for ¾ of the turn with the speed stabilizing at 150kts. DISPLAY CONSIDERATIONS Roll rate is much faster than in the Jet Provost, and very crisp hesitation rolls can be flown. Best roll rates are at speeds above 200kts and, as can be seen from the previous paragraph, this is too fast for stall turns; again, careful sequence planning is required. A 5 minute display takes only 30kg of fuel (50kg start up to landing); this allows a low start up fuel weight - ideally I used 200kg or less - which gives a 150nm diversion range! Higher fuel weights do not significantly degrade aircraft performance but must, nevertheless, be taken into account eg, add 100ft to gate heights and apply power from stall The propeller produces a large amount of drag 57 turns earlier. Tucano has an excellent range which helps significantly when planning a display schedule. Its good short take-off and landing performance mean that it can be landed at almost any display venue which has a runway. Long holds on the ground prior to takeoff should be avoided, particularly in a cross wind from the left, to prevent the oil temperature from creeping up. OAT has a marked effect on engine performance with the maximum torque being 85% on hot days. Flying with the air-conditioning off would increase torque available but is not recommended because 100% oxygen would be required and cockpit temperature would he high. On cold days over-torquing can be a problem but this can be solved by using the air-conditioning on boost. CONCLUSION Overall, the Tucano is an excellent aircraft to display. It can turn on a sixpence, fly a full range of aerobatics and, with its take-off and landing performance, give an impressive start and finish to its display. 58 CHAPTER 3 SUPERVISION SELECTING THE SUPERVISOR AND THE DISPLAY CREW has fewer distractions than a married man. All the aircrew and groundcrew must be volunteers and be made fully aware of the total commitment required to complete a successful season. Throughout the season aircrew and groundcrew will experience thousands of distractions, they must be capable of rising above these and carry on with a safe performance. Choosing the right man for the job makes all the difference between anguish and relaxation. With the right crew, supervision is most straight forward because selfdiscipline, initiative and common sense all take care of themselves; all that is needed is a firm approach periodically to bring the undoubtedly elated crews back to reality - just for a while! Supervisor. Ultimately the responsibility for supervising a display crew rests with the Stn Cdr, however, due to the continual supervisory process required during the preparation and training of display aircrew it is essential that the Stn Cdr nominates an officer to meet the close supervisory requirements. The nominated supervisor need not necessarily be a senior commander, indeed given the heavy demands on time, particularly during training, it may be better to choose a pilot with a minimum rank of squadron leader, preferably with previous display experience, whose primary job allows him the time to meet the demands of the job. The supervisor should be dedicated to all display practices where possible; this is of particular importance during the early practices when continuity, trust and easy communication are so important to the success of the work up. The Station Commander will obviously take a close interest in the work up and will no doubt join the supervisor during some of the practices. Also, he will probably insist on a full record of training, detailing the training carried out and any problems encountered. It is a good idea if this record is scrutinised by the Stn Cdr at least once a month. BRIEFING Stn Cdrs and the nominated display supervisor must ensure that display crews are thoroughly briefed on what is required of them, making clear the huge responsibility and the great commitment that they are accepting. The briefing of display crews both in general terms and for specific sorties, is integral to the supervisory process and as such is the responsibility of the supervisory chain. As a guide to supervisors, experience has shown that briefings are required on the following occasions: Stn Cdr to brief the display crew and the supervisor at the beginning of training and again following display clearance but before the first public display; supervisor to brief display crew before each practice and prior to detaching for display commitments (a standing out brief would serve these requirements well). The following list contains some of the points that should be covered in the briefs: Display Crew Selection. There are many aspects to the art of selecting the right aircrew for the job whether it be for solo aerobatics, 2 seat aerobatics or a multi crew display. Whilst the AOC will have the final say, nominees must in all cases possess the following attributes: excellent aircraft handling skills, be a bit of a showman without being a poser; be totally reliable and trustworthy in all respects; and as aircraft captain have the authority and credibility to deal with situations and people (sometimes quite senior!) who are not acting in the best interests of safe display flying. Furthermore, solo and 2 seat display pilots must be capable of supervising and looking after the spare aircraft’s pilot and his groundcrew. When the display commitments involve several weekends away a bachelor may be preferred as he Display aircrew must be made aware that they are the public image of the Service and as such must conduct themselves in a thoroughly professional way at all times. To be selected as display aircrew is a great honour, but carries with it a great responsibility. Display aircrew must be informed that display flying is a very demanding flying discipline, which 59 requires a full knowledge and understanding of the strict orders that control display flying and the need for full compliance with them. Previous experience has governed the need for these rules, stretching or breaking them will almost certainly end in disaster. important safety gates, again described in paragraph 2. In the 2 crew environment it is useful for the navigator to have heading details for the start and finish of each manoeuvre, particularly if it is offset, since this ensures that the pilot does actually pull through to the exact angle-off heading. A flying display requires detailed planning and strict control to operate safely. Display aircrew must ensure that they are fully conversant with the plan and the extra restrictions imposed by the Display Director. To this end they must read the display operation order and they must attend the display briefing. During the briefing they should clear up any doubts they have and satisfy themselves that the display area, including the overhead is sanitised for their display. Before flying display crews must have a good situation awareness of the conduct of the airshow and, in particular, for the period they are airborne they must have the following information at their fingertips: Learn the Sequence. It is of enormous benefit when you are monitoring the rehearsals from ATC to know what is coming next, at what speed, at what height and in what configuration. This is of vital importance in your flight safety and supervisory roles and will be useful during the AOAs display clearance as he is bound to ask the odd question! When supervising rehearsals, you are required to be in 2-way contact with the display crew; a long land-line/headset such that you can stand on the ATC balcony and watch the sequence is a good way of meeting this requirement, whilst maintaining a clear view of the whole display. It is essential that you have an agreed call if, for any reason you wish the practice to be curtailed and let the pilot know if you notice a wrong configuration. Don’t assume that he knows and is doing it for a good reason, inadvertent selections have happened before and could be absolutely crucial to the display minimum criteria. Make sure that your display pilot does not suffer unnecessary distractions, eg do not allow any other transmissions on the display practice frequency. Take off time and landing slot; diversion details including weather; holding points and are they in use; details of aircraft airborne immediately before, during and immediately after your display; the crowd and crowd safety lines and how they are marked; the display quiet and chat frequencies; fuel requirement including any hold off requirement; and, an accurate time check. Work-up. It is worth mapping out the work-up and check-ride rules care-fully and then decide on how many sorties need to be flown above 5000’. Flying in the back seat (if available) during the 5000 ft check ride is definitely recommended for three reasons: to keep the bull, that always exudes from the display pilot, down; to confirm in your own mind the practicality and feasibility of each manoeuvre; and to clarify that a safe recovery could be made anywhere in the sequence in the event of a major failure. Further check rides should be flown at lower heights at the supervisors discretion or as dictated by higher authority: Aerobatics below 2000’ are entirely different so at least one check ride at the lower altitudes can prove beneficial. As supervisor, you will need to submit a work-up programme to Gp HQ anyway; it should also serve as a nice guide to match the work-up rate to meet the date on which the AOA finally checks the 500’ display. The date of the first display must be established as soon as possible, this is not as easy as it sounds! As soon as this date is reasonably firm, the date for the AOA’s approval must be decided and the work up tailored to that aim. Experience has shown that the If the crew have any doubts about display safety then cancel even if it means a gap in the show and a huge loss of pride. SUPERVISING A DISPLAY PILOT Aircraft Selection. Primary and secondary aircraft must be selected as soon as possible and they must be prepared for the season. In the case of aerobatic displays choose an aircraft with low fatigue and one which can be reasonably certain of being available for the whole of the display season. Also, remember that the special requirements of the display aircraft may limit its availability for the daily flying programme and aircraft generation on exercises. It is also important to plan early for any re-painting requirements. Display Sequence. Supervisors must be totally involved in the development of the display sequence. Use the guidance in chapter 2 and, finally, when the display sequence has been agreed, double check (on paper) the heights and speeds required at the top of each vertical manoeuvre as these will form the basis of the all 60 pilot must be practising at 1500 ft six weeks prior to the AOA’s check and at 500 ft five weeks prior; this will probably mean starting training in late February when the weather is by no means reliable. Try and arrange work-up and currency rides to match the crew’s daily routine; in other words, the crew do not want to be under any hassle or feel rushed when they go out to practise. Ideally, a pattern should be established for practising with the sorties being flown before or after normal station flying; this will help the display aircrew to settle into a routine, prevent practices being disrupted by other aircraft recoveries and minimises impact on the station flying programme. Once practice times are known, let other local squadrons know so that the circuit can be kept clear. Once the pilot is proficient in good weather, he must practice the sequences in weather that is close to the lower limits; the first time he encounters a tricky day should not be on his first display. When the pilot is proficient at his home base, it is vital that he practices at other bases; it is easy to become over-familiar with ground features, display lines etc at home. The first away match can be a bit of a shock. display should be chosen as these are generally the hardest to cope with for a Service pilot - this statement is, sadly, not always true because some Service displays can prove tricky too. The supervisor must be careful not to be an added burden to the display pilot and so he must play his part as a member of the support team and do his best to assist throughout the weekend. A couple more visits to displays should suffice for the remainder of the season making sure to monitor one display towards the end of the season. Experience has shown that you will soon hear if your display pilot is performing well or badly but don’t rely on this as your only form of feedback. Indeed the display pilot himself must be relied upon to handle the whole spectrum of display flying and be trusted to let his supervisor know if he runs into any real problems. Record of Practices. Keep a record of each practice (Height flown, Full/Rolling/Flat) plus a remarks column for the odd note to aid the debrief. Such a record also acts as an indication of a tendency (eg always dishes out of a Derry to the left). As previously mentioned, this record is an ideal tool for keeping your Stn Cdr up to speed. He will probably insist on seeing it, but in any case, pop it under his nose at least once a month. The record is also a useful prompt for producing your end of season report or any other report required by higher authority. SUPPORTING THE DISPLAY CREW Rest Periods. Supervisors must insist on the display pilot taking days off mid-week when he is away at weekends. As mentioned already, the squadron must anticipate this burden, in addition to losing him, and probably the spare pilot, on Fridays and Mondays at regular intervals. The display pilot has enough to deal with during the season without any unnecessary hindrances. Throughout, he must be fully supported by the Station in all departments to help ease the burden. It is your responsibility as supervisor to ensure that this happens. Manager. The pilot of the spare aircraft must take as much of the load as he can away from the display pilot and indeed should take on the role as manager. He must get involved early in the planning sequence arranging slot times, practice times, arrival and departure times to other displays, turnaround facilities etc. During transits, he must plan the routes and lead the display pilot around, leaving him with no demands other than simply flying the display. On the ground, the spare pilot must shield the display pilot from all unnecessary trivia, of which there can be an enormous amount. In sum, the spare pilot is most definitely not someone on a weekend jolly, he must be competent, conscientious and an integral part of the whole team. By the same token, the supervisor must be prepared to allot time without distractions to his task. The briefing, authorising, watching, debriefing, cycle can be 11/4 to 11/2 hours. Personnel must also be nominated to record the practices on video. Display Season. Clearly your supervisory role continues throughout the display season although the emphasis naturally changes as your display pilot becomes proficient with more emphasis placed on monitoring rather than training. It is important that, once the season is in full swing, the display pilot must be given freedom and the flexibility to operate autonomously. The monitoring role should not be over-zealous, and heavy handedness and interference should be avoided. That is not to say that any signs of overconfidence should not be sternly dealt with. As soon as possible during the season, the supervisor should go to one of the displays, not with the intention of checking on his own pilot but primarily to see at first hand what problems and pressures there are on the pilot and his team. Ideally, a large civilian 61 Engineering. In our experience, a small pool of engineers must be established to support the aerobatics. Obviously these men must be reliable, competent and resourceful in order to look after the aircraft safely in some strange locations during busy weekends. The selection of this team, in its own way, is just as important as the selection of the pilot himself. who face criticism from the local population concerning safety. CONCLUSION I hope the above comments are helpful. Remember that all aspects of display supervision can be very satisfying and enjoyable providing you tackle them properly. Even if things are going exceptionally well, it does no harm to talk to the crew firmly now and again, to take stock of the situation, to re-assess heights and speeds, to warn the pilot against complacency or over-confidence. If the pilot declares he finds the sequence easy and he is very happy about it all - watch out. He must keep the concentration going. Administration. The administrative backup by the Station must be good, prompt and flexible. Some unusual requests may well appear which require resolution at short notice; the display pilot must be able to rely totally on the back up of the admin staff, leaving him as worry free as possible. ATC/Ops. There may well be occasions during the season when the display pilot asks for the airfield to be open at strange hours and at weekends for seemingly trivial reasons. However, it must be borne in mind that the pilot loses many weekends throughout the season, thus, what on the surface may appear a thin reason to open up on a Saturday evening, must be measured sympathetically against the number of Saturday nights he is away from his home during the year. When you’re first given the job of organising the station families day for the next year you probably feel a little excited and prepared to rise to the occasion. After all, its just a question of superior organisation and you are going to make it the most spectacular families day the station has ever seen. After a few days, the realisation of the enormity of the task begins to sink-in and you wonder whether 12 months is going to be enough. Where do you start and which essential documents do you need to read and understand? First of all don’t despair, there are many flying displays organised each year and there is a wealth of experience willing to give you a helping hand. The Airshows at Leuchars and Waddington have permanent airshow managers who know all there is to about airshow organisation – ask them for their advice. The following paragraphs hopefully will give you some initial guidance on how to plan and organise a flying display. Noise. In the early stages, there are undoubtedly going to be a lot of practices flown at low-level overhead the base. The Station CR0 must, therefore, prepare the ground and let the local population know what is happening. Emphasis should be put on the care taken by the Station before and during these practices. In 1989 BBC South West produced a half hour documentary on solo aerobatics, stressing the care and supervision taken; this programme may well be of use to Stations 62 ANNEX A TO CHAP 3 A PERSONAL OVERVIEW OF ASPECTS OF DISPLAY PILOT SUPERVISION OC 20 SQUADRON The following article is based on the experiences of Wg Cdr M Jenkins who, as OC 20(R) Sqn, was the supervisor for the 2000/2001 Harrier display pilots. His personal views strongly support the opening passages in this chapter. Beware planning too long a sequence and trying to tighten it up into a set time. Agree gates and standards on the ground and ensure the crew firmly adheres to them. Discuss escape manoeuvres at length especially from looping manoeuvres (at what height 90 degrees nose down may be outside seat and flight envelopes!) Be very wary of comments like, yeh it was safe, though in my experience it is usually accompanied by a change of shorts in private. Before going low-level practice every conceivable failure/emergency in the Sim, in the GR7 we experiment with escape manoeuvres without auto flap or with nozzle runaway (we try full power and fwd nozzle as an escape from the blown loop as well). CHOICE OF DISPLAY CREW Crew Selection should have been based on the balance between skill, experience and attitude. Assuming the volunteers are able, attitudes in the air and on the ground are key elements in preventing overconfidence or poor performance under pressure. Other elements should be considered, family circumstances (babies or pregnancies) previous experience, administration skills (see later) and promotion prospects. There is little point selecting in Oct a crew which will be promoted from the board in the middle of the season, delay acting rank (without their knowledge and consent) or be selected for exchange. PMA are very helpful in this aspect and close consultation will avoid later difficulty; especially as those most suitable for the display season are often those senior enough to be close to promotion. On the ground the planning of the sequence needs to be completed and submitted for approval early, every staff officer is a display expert when clearance time comes! Don’t change it when its approved unless experience shows a safer way, a change will make the scrutiny worse (healthily so) as it brings into doubt your judgement at getting it right first time. Ensure that sponsored flying suits, badges and the like are sorted early. Make sure that the crew, and you, goes on the media-handling course at Halton. Approach PMA for a holding officer to assist in the display season planning and admin. Get the publicity photos and publications sorted and audit the display fund. WORK-UP PERIOD In my view the key for the work-up is not to hurry the pilot; he will be the best judge of when he is fit to practice at lower heights. Putting the emphasis on him also builds the close, friendly relationship of trust, which you will need when the first display infringement occurs. You need to be an umbrella but also the safety valve. Debrief every practice HUD film/video and make notes on all the practices but beware, unless you have done it yourself you could show a complete lack of credibility and lose it; take advice read CAP 403, the RAF Display Manual and watch a few videos before jumping in. Above all, use the previous crew as mentor for the new team if they are available. Ensure that the crew practice at different airfields and sites including over the water, we use Holbeach for some events, in a variety of weather conditions and if possible, when it is hot (Cyprus?). Once the PR material and Ribbon have been done these can be passed to the display organisers so ensure that they are in a format that all can use. A short Sqn history should also be included and a summary of the aircraft systems for the commentating team at the show. DURING THE SEASON Try to go on as many display weekends as you can but don’t crowd out the guys. Ensure that you keep a handle on creep, STC are always facing new requests for flypasts and displays and the season can get out of hand. Limit the crew to 2 base locations a weekend if you can. Beware 63 mates asking for flypasts during transits between shows and clear everything through STC/AS21. from crusty Flying Control Committee members. A balanced and protective view needs to be maintained but in extremis the crew may need to be cautioned or stopped. Above all you must trust the crew. Give the crew time off, the display is a burden to all the Sqn as they pick up the additional work, this can cause resentment in the ground and aircrew. Try to get a coach or partner crew who work well with the display crew to look after all the positioning and transit planning etc. Be particularly aware of the crew tightening the display, fatigue and family stress. Work induced stress is easier to manage and keep people off the back of the crew while they are at work. Remember that the display is a Sqn commitment and it will hurt! Remember also that the public is our employer and master so don’t treat them with disdain, they may be a bunch of spotters but their impression of us is very important. A key issue is credibility and, if you have no display experience, don’t be tempted to tell people how best to do something and keep views to ‘the display looked good but you appeared to be tight on…’ . Try the sequence yourself at high level and in the Sim. Go away on at least 3 weekends, beginning middle and end, so that you experience the display admin pressures. If you do go away be useful and don’t expect the guy/gal to look after you! Be cautious about the intake of alcohol by all the team members and be aware of the mentality of the ground crew, if the ground crew is boozy change them. Ensure that the crew gives you a full briefing on the displays, venues contact numbers and all matters before you authorise them. They will always want self auth powers but because the Harrier can amend its displays slightly (venue constraints at some sites) I retain power of auth as the last link in the common sense chain however, I’m on call all of the summer. If you feel comfortable the Gp Capt can delegate self-auth, it does help all concerned but leaves one less check on the system. Ensure that each weekend is debriefed properly and a post display file is run with comments on each venue (example attached). Try to establish a couple of guys who are prepared to go away and support the display pilot, that means sitting in the tower or spare and acting as DP while the display is on. In addition, the spare can pre-book ATC clearances and brief controllers and display organisers on the needs of your jet in an emergency. It is also possible that both the pilots will have static display duties and be smart and knowledgeable to the public, our employers! The best thing you can do for your crew is to get a holding officer to manage the phone and venue work during the season. PMA are very helpful in this respect and it allows the display crew to do at least some routine work on the Sqn. Be aware that the ground crew envy the Team Groundcrew and will moan about manpower shortages on shifts yet when it comes around for volunteers there are very few to commit themselves for the season. In addition, be wary of too many venues in a weekend; the duty of care to the engineers travelling all over the country at the weekend can be stretched to the limit. POST SEASON Make sure the filing system is adequate so that post venue reports are completed and available to the next pilot and supervisor, blacklist any goats and feed up the line to Displays 1. Don’t forget to pat the bloke on the back if its all gone well, write it up in the ACRs of all the Team and reflect some of the associated bits as secondary duties. For what they are worth I have laid out my thoughts on the display and its supervision. You may wish to accuse me of teaching to suck eggs or whatever else but, I know that good supervisors are those who are regarded as such by their charges, not by themselves. Its worth asking your team what they think of you or your performance every now and then, in the bar on the display circuit perhaps. SUPERVISION It is essential that a supervisor develop an open, friendly and trusting relationship with the display pilot. While closely monitoring the display and pilot for stress, tightening, over aggressive flying or family personal issues, the supervisor must provide top-cover for the inevitable mistakes during the season, be it an airmiss with puddle jumpers in transit between displays or trouble Trust, openness, protection and caution are the 64 key words in my experience. Coupled with an understanding of the extra burden the display causes on the air and ground crew, those 4 words will stand you in good stead, 20 Sqn’s motto is ‘deeds not words’ and my display commitment has tested my Sqn to the limit at times. We maintain a role demo pilot to stand in if the display pilot is maxed out however, a cancelled display is better than a poor one or a flight safety incident through overstretch. 65 CHAPTER 4 GUIDE TO FLYING DISPLAY ORGANISATION AND ADMINISTRATION When you’re first given the job of organising the station families day for the next year you probably feel a little excited and prepared to rise to the occasion. After all, it’s just a question of superior organisation and you are going to make it the most spectacular families day the station has ever seen. After a few days, the realisation of the enormity of the task begins to sink-in and you wonder whether 12 months is going to be enough. Where do you start and which essential documents do you need to read and understand? First of all don’t despair, there are many flying displays organised each year and there is a wealth of experience willing to give you a helping hand. The At Home Days at Leuchars and Waddington have permanent airshow managers who know all there is to about airshow organisation - ask them for their advice. The following paragraphs hopefully will give you some initial guidance on how to plan and organise a flying display. Mid-October DPR hosts a forum that objectively looks at the last seasons achievements and sets the objectives in terms of PR and Recruitment areas that should be targeted for the next season. At the end of October, armed with the information from the Symposium and the PR forum, the PC meets for the first time to discuss the objectives set and agree the way forward in terms of allocating display assets for the next season. The ET then liase to determine what assets will be available and to produce the first draft of the display programme. In January, the ET has its second meeting and agrees the programme. Display organisers are then informed of their allocation and are given a breakdown of the costs which includes display insurance. MECHANISM OF THE PARTICIPATION COMMITTEE (PC) Throughout the season the ET deals with fast balls and changes to the programme. In an average year, there are about 2000 requests for display assets throughout the UK of which approximately a half are approved. The task of collating requests and allocating resources falls on the Events Team (ET). Forward planning is the key to its success and the whole process of display asset allocation for the next year begins before the end of the previous years display season. Chronologically, the basic format of planning is: With an insight into the big picture, how does this affect your organisation of an Air Display? DISPLAY ORGANISATION The Organisational Team. The biggest point to hoist aboard is that display organisation is not a one man show. There are many key players essential to the safe and effective running of an air display. The Display Director, who as detailed by JSP 550 has to be an officer of the GD(Air) Branch (or RN/Army equivalent), is in charge of flying at air displays. This is probably the most important person at an air display. Annex A gives guidance for display directors. Further guidance is available in the ‘Guidance to Unit Commanders - Stn Open and Families Days’ Before the end of September, airshow organisers submit their requests for display aircraft to the ET for the next season. The ET responds by sending the organisers details of display teams, conditions for their use, information on what aircraft are available for displays and insurance requirements. In the Autumn, DASC organises the Post-season Display Symposium where display crews and organisers get together and discuss the good and bad aspects of the display season. Agreement is then reached on the way ahead for the next season. STC/18523/SASO dated 11 Nov 97 The Flying Control Committee (FCC). FCC’s have been used most effectively in the past, most notably by IAT and it is an invaluable tool for the 66 larger displays in the effective supervision of flying. Annex B is an article written by Wg Cdr (Retd) Peter Fennell, formerly Displays 1 at HQSTC. It gives an insight into the role of the FCC. -2 Months: Draft display order. Start an accommodation plan. Distribute display order. Check condition of display markers. Arrange repair a/r. Draft static order. Disaster Plan. For all events, the possibility of a disaster cannot be ignored. Even more, the carnage at Ramstein highlighted the responsibilities of organisers of large events and their Duty of Care in minimising risk. Clearly every possibility cannot be accounted for otherwise there would not be a flying display. However, an effective disaster plan incorporating medical planning is part of that Duty of Care. Annex C gives guidance on these aspects. -1 Month: Contact HM Customs if you have overseas participants. Distribute static order. Arrange hire cars. Send arrival times to flying and static crews. Coordinate display slots with take off and landing slots. Prepare display map. Confirm insurance requirements. Stop accepting last minute participants. Confirm display order. Carry out a table top exercise of the disaster plan. Display Check List. A chronological guide to organising an air display from the onset would be most useful. The following has been provided by the Airshow Manager at Leuchars: September the previous year: Bid to PC for Military assets. Bid for civil assets. -2 Weeks: Update accommodation requirements. Put out a token display line. Prepare a list of emergency contact numbers for display crews. -5 Months: Work out a parking plan. Gain confirmation of bids. Make initial bids for accommodation. -1 Week: Publish practice times. Final update of accommodation requirements. Prepare commentary information. Confirm that insurance has been paid. Lay the final display line. Confirm parking arrangements. -4 Months: Distribute flying questionnaires. Liase with ATC reference Temporary Restricted Airspace. -3 Months: Get arrival times for VIPs Compile initial programme Distribute static questionnaires. This is obviously not an exhaustive plan for any airshow; however, it does give a framework with timescales, around which you can build your own needs. 67 ANNEX A TO CHAP 4 DISPLAY DIRECTOR’S NOTES Emergency Alerting Procedures iaw the Disaster Plan. The role of the Display Director is vital. JSP 550 gives guidance on the responsibilities of the Display Director and states he is to be responsible for the coordination, control and safety of all flying activities. To satisfy these criteria it is not sufficient to just arrive in the tower on the day and enjoy the show! So how do you decide that a particular display is safe? For all aircraft you must have sight of the display routine to satisfy yourself that there are no manoeuvres that are potentially dangerous at your show. Consideration should be given for airfield topography and crowd areas etc. For military aircraft, the display will have been approved by the AOC, so this should give you a more comfortable feeling. For civilian aircraft, the display pilot must have an authorisation form the CAA known as the Display Authorisation (DA), clearing him to display. The display sequence needs to be looked at closely to ensure that individual manoeuvres are in accord with the DA1. It is also essential that the Display Director has some indication from the civilian display pilot of the number of times he has flown the display sequence he intends to fly at this airshow. Decide whether to cancel the display. Are there sufficient emergency assets still available to respond to a second disaster? Alert the Military Rescue Services iaw the Disaster Plan. Consider authorizing a PA broadcast. Activate the Civilian Emergency Services. When the Senior Police Officer is at the incident, pass control to him. As the big day approaches what is the best course of action for the Display Director? DISPLAY SCHEDULE After praying for good weather, do not make the display slots too tight. Leave one min between events. Try to make it easy for participants: takeoff , display, land is easiest from an organiser’s point of view. Run the show yourself and keep an overview of whole thing. You need good ATC controllers to do the actual work: Any British Military formation team will be operating to an approved SOP. It is the Display Directors responsibility to ensure that he has read and accepted the SOP prior to the display. For foreign military display teams their display has to be cleared by the Chairman of the PC and a copy of the SOPs are sent to the Display Director, who can either agree them or not allow the team to display at his airshow. Approach. Marshals airborne aircraft to holds etc. Local. Display frequency, quiet whilst someone is displaying. Ground. Controls all movements prior to take-off and after landing. The Display Director is also responsible for contingency plans to cover the eventuality of an aircraft accident on or near the airfield during the period of a public display. Annex C gives more guidance on Disaster planning, however, if the Display Director is not convinced that he has the resources to provide the right Duty of Care, then it his responsibility to cancel the display. Should the worst happen ie a crash during the display, then a checklist for the Display Director is essential. The following is an example of a DISPLAY DIRECTOR’S CRASH CHECKLIST: After the show. Some departures, FOD clearance, a long day. Video is very good for showing to participants. Look after everybody – it’s a Station responsibility. Follow the successful show with an excellent party. 68 Rules and Regulations Brief. Have transport arranged to take participants to accommodation. Some will want to go early. Have a set time to end it all, most people have to fly next day. Flying Regulations. (Slide) Conventional Fixed Wing Aircraft. (Slide) MILITARY AIR DISPLAY EXAMPLE BRIEF VSTOL Aircraft. (Slide) Time Check (based on BT Speaking Clock). Helicopters. (Slide) Attendance check. Minimum Heights. (Slide) Station Commander’s Welcome. Weather Minima. (Slide) Met Brief. Last Minute Changes to Flying Programme. The Aim. (Slide) Flight Safety and Timing. ATC Brief: Questions and Individual Briefings if required. Runway Details. (Slide) (Footnotes) Diversion Details. (Slide) 1There are various types of DA dependent on the type of display to be flown. The display pilot has to satisfy the CAA that he is competent to perform manoeuvres up to the requirement for that DA. Once he has a DA, the pilot can organise his sequence in any manner he wishes provided he does not perform manoeuvres of the type that are not covered in his DA. Therefore, he can legally change his sequence at any time without further approval from the CAA Frequencies in use. (Slide) Local Area Brief (if required). Royal Flights and NOTAMs (displayed in Planning Room). 69 ANNEX B TO CHAP 4 FLYING CONTROL COMMITTEES Display Flying Notes 1997 carried an article on Flying Control Committees (FCCs) which have been a feature of the Farnborough International and Royal International Air Tattoo (RIAT) airshows for a number of years. FCCs were introduced formally for the major RAF airshows in 1996 through the medium of JSP 550. For those unfamiliar with FCCs, they are composed of up to 4 suitably qualified people and headed by the Display Director (DD). Specialists, for example a civilian display pilot or an ATC adviser, may be co-opted. The FCC normally assembles a day or two before the show and disperses when show activity and the FCC report complete. The purpose of the Committee is to provide the DD with extra eyes, brains and experience in the supervision of the operational and safety aspects of the airshow, thus allowing the DD to devote more of their time to the supervision of the complete event. The members of the Committee should also be able to ease the DD’s stress loading and spot the final gotcha. However, the DD remains firmly in charge. So what’s in it for you? To prepare for each season, a one day seminar will be held, normally in February or March, for existing and potential FCC members and others with an interest. If you are the right person for the job, membership of an FCC offers you a few days away, inevitably over a weekend, the chance to make an invaluable contribution to the success of a flying display, and enhances your experience into the bargain. And you get to watch the show, usually from the best seat in the house, for free! The members of a particular FCC should be selected well before the display. In assembling their FCC, the DD may well find that there are insufficient appropriately experienced candidates at home base to provide a properly balanced team. Thus, they may need to look further afield, either to people they know or to HQSTC (Displays 1) where a database of candidates is maintained. The members of the FCC will need to keep tabs on the display programme as it develops, although it is not essential for them to attend pre-display meetings. In the day or so before the show, they will need to be present to familiarise themselves with the arrangements and local regulations and to ensure that the display arena is properly marked. They may be required to approve individual or team displays, or check the currency and availability of regulatory documents. During the show they may need to assist participants and attend briefings and they will monitor each individual display for safety and compliance with regulations. If breaches of regulations or other matters of concern do arise, they may be involved in debriefing the pilot and deciding on further action. At least 4-6 weeks prior to the display, and through the chairman of the FCC, ensure that they are made aware of the display programme and, subsequently, any changes. TERMS OF REFERENCE FOR PERSONNEL CO-OPTED ON TO RAF FCC The FCC is a committee comprising of up to 4 personnel with the relevant experience and qualifications as laid down in JSP 550. The FCC is not in the direct organisational chain for an air display and is formed to oversee the safe execution of the display. Those co-opted on to FCCs are to: Satisfy themselves that display sequences are properly cleared and authorised and accord with national rules and regulations and do not conflict with any local rules and regulations. There may be a need to view certain displays. HQ display staff may need to be consulted. Satisfy themselves that the display programme is sensible and reasonable and that there are no flight safety conflictions. Notify the relevant authorities of any concerns, clearances needed, or further information required. Participation at an air display is not to be cleared until the FCC has been satisfied that all relevant clearances have been given. Be available prior to the display (1-2 days) for consultation with display crews/organisers as necessary. 70 play, which should consist of brief details of any supervisory or regulatory related flying incidents during the show. On the day of the display the FCC is to: Be present at the display briefing and introduced to display participants. The format for reporting incidents should be: View the display from a position close to Air Traffic Control/the Display Director and from where immediate contact can be maintained with the display controlling authorities. One member of the FCC may need to be positioned near to the display crowd line. (1) Aircraft type and operator. (2) Captains name. (3) Details of incident. (4) Remedial action taken. Ensure that all rules and regulations are adhered to throughout the display, and that any infringements are properly reported and/or dealt with. (5) Captains remarks (if any) (6) FCC Chairman’s comments. Debrief display crews and authorities as deemed necessary. (7) Recommendations (if any) The signal should be sent to HQSTC for Air Cdre Ops Spt, Info DASC Bentley Priory for SO1 FW, and relevant Group/Command HQ. The signal should be caveated STAFF, using sic ACA/KOA/ KQJ/KOJ. The Chairman of the FCC is to submit a post display report in accordance with the directions issued by HQSTC, as follows: The Chairman of the FCC is to submit a Priority signal report within 2 working days of the air dis- 71 ANNEX C TO CHAP 4 CRASH AND DISASTER PLANNING References: (2) Casualties can be documented. A.JSP 551 Vol 2, Post-Crash Management Procedures, Aircraft General. (3) Sections can fulfil their obligations to their Chain of Commands. 1. A flying accident, aircraft incident, or an incident in the crowd area during the airshow might constitute a disaster. The display organisation needs to produce a plan to detail how it will react to meet a disaster on base, or in the immediate local area. Early and close liaison with local Service units and civilian police, fire and ambulance services will be an essential part of this process. The local Emergency Planning Department and NHS Executive Health Emergency Planning Department should also be involved as early as possible. 3. Command And Control. A. Overall Control. In the event of an incident involving injury or loss of life, the Senior (civilian) Police Officer should co-ordinate the response, whether the incident occurs on or off base. B. Display Director. The Display Director should exercise initial control of any aircraft related incident or accident from the Visual Control Room (VCR) at ATC or at the Mobile Air Traffic (ATC) cabin. 2. General Outline. Officers from the local Police Service, Fire Brigade and Ambulance Service should be on site during the display and integrated with any Service support to deal with any incident that may constitute a disaster. An Initial Incident Team under the direction of the Military Incident Commander should constitute the Primary Response and should aim to achieve the following: C. Military Incident Officer. A Military Incident Officer should be appointed to exercise command and control over the personnel of the Incident Response Team (IRT). He should be established at the Visual Control Room (VCR) and should maintain radio contact with the Display Director/ATC/PA commentary positions and the IRT throughout the airshow. In the event of an incident, he should liase with the Senior Police Officer. A. An appreciation that an accident/incident has taken place and an accurate and reasonable assessment of its consequences. D. IRT. The IRT should be collocated with representatives from the local Fire, Police and Ambulance services in a pre-determined location, together with all the equipment necessary to fulfil its role. B. Effective initial command and control including: (1) The establishment of an Incident Post. 4. Outline Reaction to a Disaster. (2) Manpower to contain da, cordon the area, control the crowd, muster survivors and evacuate casualties from the scene. A. Reaction Philosophy. The fundamental philosophy is to avoid alarming the public unnecessarily. Leaving aside those directly affected by any incident, it must be recognized that the public potentially represent the most significant obstacle to the swift and successful reaction to an incident. The flying display may continue as a means of diverting the attention of the crowd as the situation is assessed, and it may be prudent to restrict public address announcements referring to the incident. The use of certain emotive words such as ‘crash’ (3) The securing of access and egress routes for the Emergency Services. C. Subsequently, the development of an effective working relationship with the cian emergency services so that: (1) Lives can be saved. 72 or ‘bomb’ should be avoided and the word ‘incident’ used in all public address, tannoy or radio broadcasts. flying display. Further actions would be: (1) The Senior Police Officer, the Mary Incident Commander, the SMO and the Fire SNCO and should deploy to the scene of the crash. B. Alerting Procedures. The alerting procedures for the airshow should be decided in advance and detailed in an Annex to the plan (2) The Display Director should inform the Royal Air Force accident/rescue services. C. Initial Response. In the event of an incident, the Senior Police Officer, the Military Incident Commander and the on-site emergency services should deploy to the area. The locations of the on-site emergency services should be decided in advance and detailed in an Annex to the plan. (3) The Display Director should authorize PA Broadcasts as necessary. Standard broadcast messages should be produced in advance so that time is not wasted trying to compose a suitable message. D. Flying Display. If a non-aircraft-related incident occurs during the flying display, the Senior Civilian Police Officer should consult with the Display Director to decide whether the display should continue. (4) The Police should ensure that the access roads to the incident site are open for emergency vehicles and should act to prohibit the approach of non-emergency vehicles. (5) The Police should ensure that Civilian Emergency vehicles are allowed unhindered access through the emergency entry and exit points. E. Civilian Emergency Services Rendezvous Point. A rendezvous point for extra civilian resources should be determined. This would be activated if so required by the Senior Civilian Police Officer. (6) The Police should prohibit the entry of non-emergency vehicles onto the Station and clear access and egress routes of pedestrians and vehicles. F. Emergency Entry and Exit Points. Emergency entry and exit points should be identified for use by emergency vehicles in the event of a disaster, and clearly marked on a plan of the station. B. Off the Station. The response to an aircraft crash off the Station will vary, dependent on the location. The appropriate State of Readiness action, should be taken but no PA broadcast should be made unless the Display Director considers it necessary to inform the public or to restore public confidence. The Display Director should arrange for subsequent flying displays to be amended or cancelled, as necessary. A decision to continue the flying display can only be made in the knowledge that an emergency response to a second incident would not be impeded by the original incident. The following specific actions should be taken: G. Emergency Assembly Points. There might be a need to cancel the flying display and move the spectators to an emergency assembly point. These areas should be designated on the station map. 5. Additional Actions if the Disaster Involves an Aircraft Crash. In the event of an aircraft crash, additional actions will be required in accordance with Reference A. Instructions for the Military Incident Commander in the event of an aircraft crash should be detailed in an Annex to the airshow plan. Specific actions, depending on whether the crash is on or off the Station, would be as follows: (1) The Senior Police Officer, the Military Incident Commander, SMO, and the Fire SNCO should deploy to the scene of the crash by the fastest means possible (ie by helicopter if available). A. On the Station. In the event of an aircraft crash on the Station, Initial State 1 action is to be taken but no PA broadcast made unless the Display Director considers it necessary to inform the public or to restore public confidence. The Display Director should cancel the (2) The Police should ensure that Civilian Emergency vehicles are allowed unhindered entry through the emergency entry and exit 73 DOCUMENTATION points. (3) The Display Director should authorize the appropriate PA Broadcasts. 13. The following documentation should be available: (4) The Display Director should inform the Royal Air Force accident/rescue service. A. A plan of the Station and a map packup containing Ordinance Survey Maps covering the area around the station for the Military Incident Commander and the IIT. SERVICE SUPPORT 6. Cordon Party. The IIT should react to incidents as directed by the Military Incident Commander. Reference A provides detailed orders for the Military Incident Commanders, OIC crash guards, crash guards, cordons and control of access and crash sites within the UK, which should be followed at all military aircraft accidents. A copy of Reference A should be held by the Military Incident Commander. All officers nominated as Military Incident Commanders, OIC Cordon parties and the OIC IIT should familiarize themselves with it prior to the airshow. B. JSP 551. COMMAND AND SIGNAL 14. For the disaster plan to function effectively good communications are essential. The communications plan should include the following elements: A. Ground to Air Comms. B. Management Radio Networks. 7. Police. A security desk should be set up provide support for incidents. In addition the SNCO IC Police should ensure that the emergency entry and exit points are kept clear of all traffic during emergencies. In the event of an on-Station disaster, car parks should be closed and the SNCO IC Police should ensure that all access and egress routes to the incident site are kept open for the use of emergency vehicles. C. Station Telephone Facilities. D. Public Address Systems. E. Exemplar PA broadcasts. DETAILED INSTRUCTIONS AND PROCEDURES 15. A series of Annexes should be produced to provide detailed instructions for the following areas: 8. Medical Services. The SMO would be responsible for Service and other military medical services and should liase with the civilian medical authorities to ensure that RAF medical facilities are provided in the event of a disaster. Further details are provided elsewhere in this guide. A. Initial Incident Team. B. Emergency Alerting Procedures. 9. Press Facilities. In the event of a disaster, the Airshow Public Relations Officer should establish a press briefing facility in a suitable location. No statements should be issued without the express authority of the Display Co-ordinator. C. Location of Emergency Services. D. Civilian Emergency Services Rendezvous P. E. Instructions for the Military Incident Commander in Event of Aircraft Crash. 10. Service Casualty reporting. In the event of a disaster, a Service Casualty Reporting Cell should be set up. F. Day Director Instructions to Military Rescue/ Emergency Services. 11. Mortuary Facilities. In the event of a disaster, a temporary mortuary should be established, together with a receiving and recording cell. G. Public Address Broadcasts. 12. Relatives Reception. In the event of a disaster, a reception area for relatives should be set up. I. Motor Transport Requirements. H. Medical Resources. J. Communication Plans. 74 ANNEX D TO CHAP 4 MILITARY AIR SHOW – RISK MANAGEMENT – DASC GUIDANCE 1. Display Directors should: f. In conducting 2nd step Risk Assessment avoid ascribing mathematical figures to human performance. a. Recognise that JSP550 provides Display Flying regulations, which can be considered as strategic RM. g. Under the 3rd step control measure analysis process: b. Ensure that TORs clearly articulate their safety responsibilities. i. Transfer financial risk through insurance. c. Familiarise themselves with Military Aviation Risk Management processes and procedures set out in JSP 551 Vol 3 and conduct deliberate RM. Of note is that a Risk Assessment (as commonly used today) is only one element of the 5 step RM process. ii. Ensure that insurers are apprised of RM documentation. d. Consider using the What If? process at RM 300.105 under the 1st step Hazard ID Process. Hazard ID is the most important and fundamental step in RM. In particular, it is the risks which are unique to a particular site which must be identified. Unique considerations include crowd size and density, proximity of other populations to aircraft operating areas including holding areas, risk exposure, and the availability of civilian emergency response organizations. a. Rehearsal. b. Coded commentary in event of accident. iii. Provide an Air Show disaster response plan, which includes inter alia: c. 1st response capability (incl. medical capability). d. Escape routes. h. At 4th step Risk Control Decision and Implementation, report upwards where risks cannot be adequately controlled. e. Avoid using Hazard ID tools suited for equipment Safety Case development, which require professional input - such as Fault Tree Analysis. i. Manage change by maintaining RM documentation and keep records of decision making. 75 ANNEX E TO CHAPTER 4 MILITARY AIR SHOW – RISK MANAGEMENT – FRAMEWORK DOCUMENT DASC guidance notes are in italic RAF LITTLE SNORING AIR DISPLAY 25 AUG 04 RISK MANAGEMENT References: A. B. JSP 550. JSP 551 Vol 3. INTRODUCTION 1. Authority for event. 2. Purpose (Mission). 3. Description of event. 4. Key personnel (include authority and area of responsibility). 5. Supporting units. 6. Estimated crowd. 76 HAZARD IDENTIFICATION 7. Risk ID Team: a. b. c. d. e. f. g. h. i. Display Director OC Ops/Cdr Air Member of Flying Control Committee (FCC) SATCO Fire Officer Medical Officer Security Officer Salvage Officer Etc 8. Hazard ID meeting date(s) Operational analysis 9. Description of mission. Key events - table 1 Date Time (local) Event Key participants Resources Action Officer 24 Aug - 0800 Disp rehearsal Brief 24 Aug - 0815 1st Response units pre-position OC Ops/SATCO/Disp aircrews etc Fire crews/Medics/ Salvage etc Station Briefing Rm/IT Station/Civilian 1st response SATCO/SNCO IT/ etc OC Ops/Fire Officer/MO/ etc ***** ***** ***** ***** ***** 25 Aug - 0800 Display Brief OC Ops/SATCO/Disp aircrews etc Station Briefing Rm/IT SATCO/SNCO IT/ etc **** 25 Aug - 1200 **** Crowd control barrier check **** Security Team **** MT **** Security Officer 25 Aug – 1415 -1430 Red Arrows display Red Arrows Red Arrows OC RAFAT **** **** **** **** **** Hazard/Cause – table 2 (“What If” brainstorming method recommended) Hazard Cause(s) **** Ac impacts populated area (local caravan site) **** Overrun on Rwy 05 (brake failure)/major failure on t/o Ac wreckage impacts crowd Ac mid-air collision/etc **** **** In depth Haz ID (incl source) of data – table 3 Hazard Cause(s) Source Ac wreckage impacts crowd Non-adherence to display regulations DASC Occurrences data Ac impacts runway HF RNFSAIC Occurrences data Explosion in crowd Terrorist act ModSy/Police **** **** **** 77 RISK ASSESSMENT 10. Risk Assessment Jury: a. Display Director (accountable risk manager and final arbiter) b. Suitably experienced SO2- non-participant* (aviator/ATCO/Ops Spt) c. Member of FCC *An FSO from the Command FS organization or another unit is recommended. 11. Jury advisors: a. b. c. d. e. f. g. OC Ops/Cdr Air SATCO Fire Officer Medical Officer Security Officer Salvage Officer Etc Risk Assessment – table 4 Hazard (from Haz ID) Exposure assessment Hazard severity (“What If” brainstorming method recommended) **** catastrophic Event probability (“What If” brainstorming method recommended) **** infrequent Assessment (from RA Matrix in JSP551) * A **** Ac impacts populated area (local caravan site) Ac wreckage impacts crowd Ac impacts runway Explosion in crowd **** **** **** **** **** **** **** Overrun on Rwy 05 (brake failure) 1000pers catastrophic seldom B 2pers major seldom C 100pers catastrophic seldom B **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** * * * * * * 78 RISK CONTROL MEASURE ANALYSIS Notes: • Insurance is one of the control measures for each risk but is not shown on the table. • 1st and 2nd emergency response units are to provide the appropriate capability to meet the disaster response plan. Analysis – table 5 Prioritised Hazard (fm Haz ID) 1 2 3 4 5 6 7 Ac wreckage impacts crowd Explosion in crowd Ac impacts runway Ac impacts populated area (local caravan site) **** **** **** Control method options Determine control effects 1. Ensure compliance with JSP550 display regulations 2. Monitor crowd line 3. Reduce crowd density/ 4. Provide disaster response 1. Enhance security patrols 2. Reduce crowd density 3. Escape routes 4. Public announcements 5. Provide disaster response Cumulative effect: 1. Ensure compliance with JSP550 display regulations 2. Provide disaster response Cumulative effect: 1. Ensure arrestor barrier serviceable 2. re-route display line 3. ask police to patrol boundary fence 4. Use alternate Rwy 5. Provide disaster response **** **** **** Severity reduced to major (by reducing number of pers and disaster response) Probability reduces to unlikely)by barrier/reroute Revised assessment = C Severity remains catastrophic, probability reduces to unlikely Revised assessment = C Cumulative effect: Severity remains catastrophic, probability reduces to unlikely Revised assessment = C Severity remains major, probability reduces to unlikely Revised assessment = C **** **** **** 79 Prioritised risk control 1. Compliance with procedures 2. Briefing 3. Rehearsal 4. Crowd control 5. Provide disaster response plan 1. Enhance security 2. Provide patrols 3. Increase size of crowd enclosure 4. Provide signed escape routes 5. Provide disaster response plan 1. Compliance with procedures 2. Briefing 3. Rehearsal 4. Provide disaster response plan 1. Ensure arrestor barrier serviceable 2. Re-route display line 3. Ask police to patrol 4. Provide disaster response plan note: alternative Rwy option not practicable **** **** **** RISK CONTROL DECISION AND IMPLEMENTATION 12. The Display Director is responsible for making the risk decision. This may include passing the risk decision up the Command chain or delegating/passing on to an appropriate specialist such as the Fire Officer/SATCO. 13. In the context of Air Shows: Risk Risk Risk Risk level level level level A – Not acceptable under any circumstances must be reduced or activity cancelled. B – Risk ownership must be transferred to a higher authority. Normally the AOA. C – May be accepted by Display Director but must be carefully controlled and monitored. D – Acceptable without further control. To be monitored under the change process. Risk decision – table 6 1 Prioritised Hazard (fm Haz ID) Ac wreckage impacts crowd 2 Explosion in crowd 3 Ac impacts runway 4 Ac impacts populated area (local caravan site) 5 6 7 Selected risk control(s) 1. 2. 3. 4. 5. 1. 2. 3. 4. 5. 1. 2. 3. 4. 1. 2. 3. 4. Compliance with procedures Briefing Rehearsal Crowd control Provide disaster response plan Enhance security Provide patrols Increase size of crowd enclosure Provide signed escape routes Provide disaster response plan Compliance with procedures Briefing Rehearsal Provide disaster response plan Ensure arrestor barrier serviceable Re-route display line Ask police to patrol boundary fence Provide disaster response plan **** **** **** **** **** **** 14. The Display Director is responsible for implementing risk control measures. 80 Risk decision Accept Accept Accept Accept **** **** **** Control measure implementation – table 7 Prioritised Hazard (fm Haz ID) 1 Ac wreckage impacts crowd 2 Explosion in crowd 3 Ac impacts runway 4 5 6 7 Ac impacts populated area (local caravan site) **** **** **** Selected risk control(s) to be implemented (from risk decision) directive to implement assumed 1. Compliance with procedures 2. Briefing 3. Rehearsal 4. Crowd control 5. Provide disaster response plan Action Officer (establish accountability) Support from 1. Disp Dir 2. OC Ops 3. AOA/ Disp Dir 4. St Cdr 5. Disp Dir 1. 2. 3. 4. 5. Disp Dir/aircrews/SATCO OC Ops Disp Dir Sec Off Disp Dir/OC Ops 1. Enhance security 2. Provide patrols 3. Increase size of crowd enclosure 4. Provide signed escape routes 5. Provide disaster response plan 1. Compliance with procedures 2. Briefing 3. Rehearsal 4. Provide disaster response plan 1. 2. 3. 4. 5. Sec Off Sec Off Sec Off Sec Off Disp Dir/OC Ops 1. 2. 3. 4. 5. St Cdr St Cdr St Cdr St Cdr Disp Dir 1. 2. 3. 4. 5. Disp Dir/aircrews/SATCO 2. OC Ops 3. Disp Dir 4. Disp Dir/OC Ops 1. Disp Dir 2. OC Ops 3. AOA/ Disp Dir 4. Disp Dir 1. 1. 1. 2. 3. 4. 1. SATCO 2. Disp Dir 3. Disp Dir/ OC Ops 4. Disp Dir 1. Ensure arrestor barrier serviceable 2. Re-route display line 3. Ask police to patrol boundary fence 4. Provide disaster response plan 1. Approved by 1. SATCO Disp Dir Disp Dir/OC Ops Disp Dir/OC Ops **** **** **** **** **** **** 81 **** **** **** 2. 3. 4. 5. 2. 3. 4. 2. 3. 4. DASC/ Cmnd FS/ OC Ops/ Sqn SATCO/IT OC Ops MT St Cdr/ Civ 1st response Civ Pol MT Contractor Contractor St Cdr/ Civ 1st response DASC/ Cmnd FS/ OC Ops/ Sqn SATCO/IT OC Ops St Cdr/ Civ 1st response Salvage Officer N/A Sec Officer St Cdr/ Civ 1st response **** **** **** SUPERVISION AND REVIEW It may be useful to subdivide this table into Action Officer groupings to give clarity to the feedback process and to allow for insertion of unidentified risks and proposed future control measures. This process allows for enhanced RM at the next event and should be fed back into the Hazard ID process. The Display Director is responsible for the pro-active control of risk during the event and may nominate suitable personnel, including members of the FCC, to assist. Risk control supervision and feedback – table 8 1 Prioritised Hazard (fm Haz ID) Ac wreckage impacts crowd 2 Explosion in crowd 3 Ac impacts runway 4 Ac impacts populated area (local caravan site) Risk control(s) 1. Compliance with procedures 2. Briefing 3. Rehearsal 4. Crowd control 5. Provide disaster response plan Supervising (Action) Officer (as implementation table) 1. Disp Dir/aircrews/SATCO/ FCC 2. OC Ops 3. Disp Dir 4. Sec Off 5. Disp Dir/OC Ops 1. Enhance security 2. Provide patrols 3. Increase size of crowd enclosure 4. Provide signed escape routes 5. Provide disaster response plan 1. Compliance with procedures 2. Briefing 3. Rehearsal 4. Provide disaster response plan 1. Sec Off 2. Sec Off 3. Sec Off 4. Sec Off 5. Disp Dir/OC Ops 1. Ensure arrestor barrier serviceable 2. re-route display line 3. ask police to patrol boundary fence 4. Provide disaster response plan 1. SATCO 2. Disp Dir 3. Disp Dir/OC Ops 4. Disp Dir/OC Ops 1. Disp Dir/aircrews/SATCO/ FCC 2. OC Ops 3. Disp Dir 4. Disp Dir/OC Ops 82 Feedback 1. Ac xxx over flew crowd line 2. Briefing room too small 3. Ac yyy unable to rehearse – displayed elsewhere 4. Comms difficulty between civ/mil units 1. Successful 2. Insufficient manpower 3. Underestimated size of crowd 4. Successful 5. Comms difficulty between civ/mil units 1. Ac zzz flew below display minima 2. Foreign aircrew confused feet/metres 3. Ac yyy unable to rehearse – displayed elsewhere 4. Pre-positioning locations put 1st response units at risk. Comms difficulty between civ/mil units 1. Barrier serviced 1 week before show 2. Re-route caused difficulties for FJ display – amend to 30 degree easterly turn in future 3. Police patrol successful –caravan site members remained clear of overrun 4. Comms difficulty between civ/mil units 5 **** **** **** **** 6 **** **** **** **** 7 **** **** **** **** Post-event new Haz ID Jet blast on crowd from ac in static display area preparing for departure after air show. Station tannoy unusable due to commentary Proposed risk control measure Delay ac departures from static park ‘til crowd clears. **** **** 1 2 3 **** Implement telephone- only emergency response initiation. **** 83