Thunder without Lightning The High Costs and Limited Benefits of the F-35 Program August 2015 Thunder without Lightning The High Costs and Limited Benefits of the F-35 Program By Bill French with Daniel Edgren August 2015 Bill French is a policy analyst at the National Security Network (NSN). Daniel Edgren is a former researcher at NSN. The authors would like to thank Chris Strong and Graham Clark for their numerous research and editorial contributions. Maj. Gen. Paul Eaton (Ret.) provided important guidance in conceptualizing of the project early on. John Bradhsaw’s patience and input was greatly appreciated. We would especially like to thank David Axe, Winslow Wheeler, Mandy Smithberger, Pierre Sprey, Larry Korb, Kate Blakeley, and Bill Hartung for reviewing drafts of the paper and providing valuable feedback that immensely benefited this work. Of course, the final product is the sole responsibility of the authors and does not necessarily reflect the views of those who were kind enough to supply their assistance. The National Security Network is dedicated to developing and advancing national security solutions that are both pragmatic and principled. Learn more about NSN at www.nsnetwork.org PHOTO CREDIT: Lockheed Martin, 2013. Introduction and Executive Summary In June of this year, Gen. Joseph Dunford testified that the Department of Defense (DOD) is reviewing the total number of F-35s it will purchase.1 Under current plans, DOD intends to purchase and operate nearly 2,500 aircraft at an expense of roughly $1.4 trillion to replace most of the 4th-generation fighter and attack aircraft in the inventories of the Air Force, Marine Corps, and Navy, including the F-16, F/A-18C/D, AV-8B, and A-10. If this procurement plan or something close to it is maintained, the F-35 will form the backbone of American airpower for the first half of the 21st century. The ongoing review provides an opportunity to refocus attention on the F-35 program, especially for Congress, which is charged with its funding and oversight. Past attention given to the F-35 in Congress has focused primarily on the program’s cost overruns and expensive development shortcomings. In light of the review, this focus should be expanded to a broader cost-benefit assessment of the program that considers the extent to which the F-35’s capabilities, or lack thereof, advance U.S. national security. In this paper, we assess the capabilities of the F-35 and show how the aircraft is mismatched to meet emerging threats. Considered alongside the exorbitant cost of the program, this capability mismatch entails that it would be unsound to maintain a fullscale commitment to the F-35 program and that alternatives to the full program should be studied and, ultimately, selected. Evaluating the benefits provided by the F-35 program depends on the kinds of contingencies in which it is assumed the aircraft might operate. Our analysis focuses on the F-35’s ability to perform against advanced foreign militaries that are near-peer competitors. This method was used for two reasons. First, this assumption is operative for DOD, which is conducting its review while holding to the belief that the F-35 is wellsuited for competing with near-peer competitors. In announcing the review, Gen. Dunford emphasized the aircraft’s “critical” significance for countering “near-peer competitors.” 2 Second, if we instead assume the F-35 is also needed to counter lowergrade military powers or non-state actors, then there is little to no justification for the F35 to begin with. The United States already enjoys massive conventional overmatch compared to less-capable states, and there is no need for an exorbitantly expensive 5thgeneration aircraft for counterinsurgency or counterterrorism operations against organizations such as the Islamic State or the Taliban. 1 Contrary to Gen. Dunford’s comments and DOD’s beliefs, our analysis concludes that the F-35 does not have the capabilities to be effective against near-peer adversaries. It would be an error for DOD’s review to sustain a large-scale commitment to the F-35 based on the aircraft’s supposed utility against near-peer competitors. To perform against near-peer adversaries, the F-35 will have to be capable of executing a range of missions, from defeating enemy aircraft to penetrating enemy air defenses to strike surface targets. But the F-35 will struggle to effectively perform these missions due to shortcomings in its design and program requirements, despite costing between three and nine times more than the 4th-generation aircraft it is designed to replace. Drawing on detailed comparisons to other aircraft (see Appendix A), we identify four crucial areas where the F-35’s capability is mismatched against near-peer competitors: 1. The F-35 is less maneuverable than many of the 4th-generation fighter aircraft it is intended to replace or those it would likely face in combat, making it unlikely to be effective in within-visual-range (WVR) air-to-air engagements. 2. The F-35’s small internal payload capacity will significantly limit its effectiveness in beyond-visual-range (BVR) air-to-air engagements, and, to a lesser extent, strike missions against surface targets. The F-35 will also likely have difficulty generating high rates of sorties to deliver payloads to targets over time. 3. The F-35’s short range means that it will be of limited use in geographically expansive theaters like the Asia-Pacific or against so-called anti-access threats whereby adversaries can target forward airbases. 4. The F-35’s survivability depends on stealth technology that is at risk for obsolescence and will become increasingly ineffective over the 56-year lifetime of the program. Thus, the F-35 will find itself outmaneuvered, outgunned, out of range, and visible to enemy sensors. Going forward, full investment in the F-35 would be to place a bad trillion-dollar bet on the future of airpower based on flawed assumptions and an underperforming aircraft. To avoid such a catastrophic outcome, Congress and DOD should begin the process of considering alternatives to a large-scale commitment to the F-35. Staying the present course may needlessly gamble away a sizable margin of American airpower at great expense and unnecessary risk to American lives. 2 F-35 Capability Mismatch The F-35 was developed to sustain America’s global advantage in airpower by serving as a multi-service, multi-role fighter capable of a host of missions, especially defeating enemy aircraft, penetrating enemy air defenses to strike surface targets, and close air support. While the F-35’s design emphasizes strike roles over air superiority, the Air Force believes it will be necessary for the F-35 to perform air-to-air missions in the early stages of high-end conflict.3 In the following section, we assess key capabilities of the F35 relevant to its performance, focusing on the aircraft’s maneuverability, payload, range, and stealth features. There are significant problems with each. Far from representing an effective next-generation fighter, the F-35 is more likely to find itself outmaneuvered, outgunned, out of range, and visible to enemy sensors in contingencies against near-pear militaries. The F-35 program’s shortcomings are not just a matter of spending resources inefficiently or buying too many of an underperforming weapon system. Because the F35 is currently slated to make up the vast majority of the U.S. fighter fleet, its inadequacy puts American airpower at greater risk vis-à-vis near-peer adversaries. With an inferior fighter fleet, American airpower will be handicapped in supporting top functions assigned to the U.S. military, including deterring, denying, and defeating capable state adversaries.4 As a result, a continued full-commitment to the F-35 program is likely to pose a liability that American pilots and commanders will have to overcome to execute their missions against advanced foreign militaries. 1. Kinematic Performance To succeed in air-to-air roles, The F-35 will very likely have to defeat enemy aircraft in within-visual-range (WVR) engagements, i.e. dogfighting. However, the F-35 will be severely handicapped in close quarters with enemy aircraft. Dogfighting requires agility and maneuverability. But the F-35 lacks these characteristics and in testing has demonstrated maneuverability inferior to that of the 4th-generation fighter aircraft it will replace. The available data indicate the F-35 will be less maneuverable than advanced foreign fighters as well. While the F-35 was designed with a preference for beyondvisual-range (BVR) combat, in which maneuverability is supposedly less significant, history shows dogfighting is a persistent feature of air-to-air combat.5 Despite the F-35’s designers’ preference for long-range combat, avoiding dogfights may prove difficult. 3 Figure 1: F-35 Performance Compared to 4th-Generation Fighters It Will Replace or May Face in Air Engagements Navy (F-35C replaces F-18) F-35C F/A-18C/D Marine Corps (F-35B replaces AV-8B) F-35B AV-8B MiG-29 Su-27 Acceleration USAF (F-35A replaces F-16) F-35A F-16C Block 50/52 63 sec 28 sec 108 sec 42 sec 81 sec n/a 31 sec 27 sec Wing loading 86.62 lb/ft2 68.07 lb/ft2 78.44 lb/ft2 89.75 84.33 69.32 lb/ft2 75.35 lb/ft2 lb/ft2 lb/ft2 0.63 (0.92 1.16 0.71 (1.17 Aft. Burn) 0.67 (1.31 Aft. Burn) 17,000 lb 9,921 lb 17,637 lb 594-627 459-702 nm 840 nm Thrust-to-weight 84.39 lb/ft2 0.63 (1.00 Aft. Burn) 0.70 (1.15 Aft. Burn) 0.53 (0.85 Aft. Burn) 0.69 (1.13 Aft. Burn) 18,000 lb (4,788 internal) 19,522 18,000 lb (4,788 internal) 15,500 lb 613 nm 200-845 nm 610 nm 290-600 nm Aft. Foreign Fighters Burn) Max payload Combat radius 15,000 lb (2,69 internal) 456 nm nm NOTE: see Appendix A for additional comparisons and more information, including relevant assumptions. Pilots’ attempts to avoid WVR engagements will be hindered by the aircraft’s comparatively small missile payload and slow speed, which will complicate successfully killing enemy aircraft at BVR distances (we detail this problem in a later section) or running from close-in engagements altogether. 1. 1 Performance vs. U.S. 4th-Generation Fighters As Figure 1 and Appendix A show, the F-35 compares unfavorably to already deployed 4th-generation fighters in key capability areas relevant to maneuverability. The F-35 is inferior in terms of its thrust-to-weight values and time to accelerate, the latter being more than twice as slow as that of comparable fighters. These performance factors are critical to building up speed and gaining or retaining energy that enables the aircraft to maneuver and gain advantages in firing position against other aircraft or defeating incoming missiles. F-35A and B models also score worse on wing loading* than their counterparts, a value that is significant for turning maneuvers. The F-35C scores better on wing loading, but this does not seem to have significantly ameliorated its poor maneuverability. Inferiority in these areas has been shown to negatively affect F-35 performance. In 2012, testing downgraded the F-35’s ability to sustain turns (i.e., the ability of the aircraft to continue to turn without losing speed): The F-35A was downgraded from 5.3g to 4.6g sustained turns; the F-35C was downgraded from 5.1g to * Wing loading is an aircraft’s weight divided by its wing area. Wing loading is an important measure for comparing aircrafts’ ability to turn and maneuver, though wing shape and control surface areas are also important. 4 5g sustained turns; and the F-35B was downgraded from 5g to 4.5g sustained turns.6 This places the ability of the F-35 to sustain turns in the class of 3rd-generation fighter aircraft like the F-4 Phantom, which was capable of 5.5g sustained turns and entered service with the Navy in 1960.7 One comparison that has attracted considerable attention is to what extent the F-35A can match the maneuverability of the F-16. There is a double significance to this comparison. First, matching the maneuverability of the F-16 was a “threshold” design requirement of the program, meaning it was a minimally acceptable parameter (matching the more maneuverable F/A-18C/D was a key program objective).8 Second, the F-35A will be by far the most widely produced variant, with 1,763 aircraft planned for the U.S. Air Force. Compared to the F-35A, the F-16 enjoys superior wing-loading (84 lb/ft2 vs. 87 lb/ft2), as well as significant advantages in transonic acceleration (28 seconds vs. 63 seconds) and thrust-to-weight (0.77 and 1.15 with afterburners vs. 0.63 and 1.0 with afterburners). In response, F-35 advocates have insisted that comparisons with 4th-generation aircraft should account for factors that decrease their performance, such as the drag and weight added by external fuel tanks or externally stored weapons. They claim the F-35 was designed to carry larger amounts of fuel without the use of external tanks and can carry weapons in internal bays, thereby minimizing drag. But this rationale is misleading. First, the F-16 performance data cited by F-35 critics compares the acceleration of an F16 with four externally mounted air-to-air missiles9 to an F-35 after its onboard weapons have already been expended.10 (The same is true of the data that compare the F/A-18 to the F-35C).11 Second, while it is certainly true both that external fuel tanks confer performance penalties and that F-16s, like all other fighters, often use external fuel tanks to extend their range, external fuel tanks are dropped prior to air-to-air engagements. Finally, even F-35 advocates admit that the comparison of F-35s to 4th-generation aircraft penalized with greater external loads does not yield a strong – or any – performance advantage to the F-35, but instead results in “very comparable” performance to aircraft that were designed and produced in the 1970s.12 Any debate over the F-35’s maneuverability compared to the F-16 was put to rest with a report leaked in July 2015. The report described air-to-air combat testing conducted in January of the F-35 against an F-16 focusing on “Basic Fighter Maneuvers in offensive, defensive and neutral setups at altitudes ranging from 10,000 to 30,000 feet.” The report, written by the F-35 test pilot, described a sluggish aircraft outperformed by the F-16D Block 40, a twin-seat model with a less powerful engine and more drag than the current single-seat Block 50/52 model.13 Perhaps the most damning specific finding was that “the F-35A remained at a distinct energy disadvantage for every 5 engagement,” meaning the aircraft was unable to effectively maneuver against its mock adversary either defensively or offensively. The pilot concluded that F-35 performance was “substantially inferior” to 4 th-generation legacy fighters. Notably, the F-35 was outperformed despite flying in a clean configuration without the weight of armament while the F-16 was handicapped with two large external drop tanks.14 In response, Lockheed Martin did not contest the report that the Air Force test pilot had written. Instead, the company asserted that the exercise did not take into account the aircraft’s ability to engage aircraft from beyond visual range (BVR) or its stealth characteristics. 15 However, as we will detail later, neither of these aspects is likely to provide a significant net advantage for the F-35 against a near-peer opponent. 1.2 Performance vs. Foreign Fighters As Figure 1 and Appendix A show, the F-35’s performance characteristics also compare unfavorably to already deployed foreign 4th-generation fighters such as the Russiandesigned MiG-29 Fulcrum and Su-27 Flanker (also produced by China) in service with air forces around the world. These are the kinds of aircraft the F-35 would most likely face in air-to-air engagements against a high-end opponent. Compared to both the Su27 and MiG-29, the F-35 is grossly inferior in terms of wing loading (except for the F35C), transonic acceleration, and thrust-to-weight. All F-35 variants also have significantly lower maximum speeds, Mach 1.6 for the F-35 compared to Mach 2.2 for the Su-27 and Mach 2.3 for the MiG-29. Air-to-air simulations paint an even grimmer picture. In 2009, U.S. Air Force and Lockheed Martin analysts indicated that the F-35 could be expected to achieve only a 3to-1 kill ratio against the decades-old MiG-29 and Su-27 despite its advantages in stealth and avionics.16 The results of other simulations have been far worse. In one simulation subcontracted by the RAND Corporation, the F-35 incurred a loss exchange ratio of 2.4to-1 against Chinese Su-35s.17 That is, more than two F-35s were lost for each Su-35 shot down.18 While these simulations take into account a host of other factors and include assumptions about the context in which the engagements take place, they nevertheless underscore the need for skepticism regarding the F-35’s air-to-air capabilities.19 Unfortunately, there are insufficient data on foreign 5th-generation fighters to allow for meaningful comparisons. Three such fighters are known to be under development: the Russian PAK FA and the Chinese J-20 and J-31. 6 Can the F-35 Replace the A-10? Airpower analysts and members of Congress have extensively debated the merits of whether the F-35 can suitably replace the A-10 for performing close air support (CAS). The CAS mission has been critical in the past decade of conflict in Iraq and Afghanistan and remains relevant to deterring or fighting contingencies against near-peer competitors, as demonstrated by Russian aggression in Ukraine. Despite costing roughly nine times as much as the A-10, the F-35 is much less capable in this mission area. One F-35 pilot explains, “An A-10 is always going to be better at CAS than an F-35 is. That’s because the A-10 was designed specifically for that mission.”A While the maximum external payload that the F-35 is capable of carrying is comparable to A-10, the F-35 comes up short in most other areas.B Only the F-35A is fitted with an internal cannon, and, while the A-10 is armed with 1,150 rounds of 30mm ammunition for its tank-killing GAU-8 Avenger cannon, the F-35A is limited to 180 rounds for its less powerful 25mm cannon, effective only against lightarmored vehicles.C The F-35B and C variants removed the gun to save weight and rely instead upon a “semi-stealthy” and “missionized” ventral gun pod that carries slightly more ammunition.D But gun pods have not performed well historically, most notably in the case of the F-4 Phantom.E A 30mm pod was tested on the F-16 as an earlier proposed A-10 replacement, but the experiment was plagued by severe inaccuracy and abandoned.F Worse, the F-35 will enter service with inferior sensors for close air support. The F35 is equipped with a nose-mounted Electro-Optical Targeting System (EOTS) to provide the pilot enhanced images for use against ground targets. But the F-35’s EOTS is a less advanced version of what aircraft like the A-10 and F-16 use today, featuring less resolution, less range, and an inability to share feeds with friendly ground forces or mark targets with an infrared beam prior to weapons employment to ensure the right targets are struck.G The A-10 also possesses more efficient engines, heavy armor, and survivable, redundant flight control systems. Taken together, these attributes allow the A-10 to loiter over the battlefield longer and take greater risks, even being able to survive direct hits from armor-piercing fire.H As a result, A-10s can fly lower and slower for longer in order to more precisely acquire targets near friendlies and safely deliver ordinance. 7 2. Payload Capacity and Sortie Generation In addition to lacking maneuverability, the F-35 is hampered by limited space for storing weapons in its internal bays. A deficient weapons capacity has significant consequences for the aircraft’s ability to conduct missions against air and surface targets. In air-to-air engagements, the F-35 will be outgunned by foreign fighters that can carry greater numbers of missiles and cannon rounds. Nor can the aircraft carry enough long-range missiles to ensure it can fight effectively and reliably in beyondvisual-range (BVR) engagements. In engagements against surface targets, the F-35’s small internal payload means it will be able to destroy fewer targets per sortie if maintaining a stealthy configuration. This problem will be exacerbated by the F-35’s limited ability to generate sorties, i.e., fly missions, to repeatedly deliver its weapons to targets over the duration of a campaign. 2.1 Air-to-Air Implications The F-35’s small weapons capacity puts the aircraft at a sizable air-to-air disadvantage against its competitors. If limited to its internal bays, the F-35 carries a standard load of only two long-range air-to-air missiles, although four missiles can be carried if no other munitions are on board.20 Major Richard Koch, chief of the U.S. Air Force Air Combat Command advanced air dominance branch, said, “I wake up in a cold sweat at the thought of the F-35 going in with only two air-dominance weapons.”21 But the aircraft is still sizably outgunned even when carrying the maximum four missiles. Top-tier foreign 4th-generation fighters like the Su-27 have 10 external hard points to carry air-toair missiles or other ordinance. Some models derived from the Su-27, like the Su-35, have 12 external hard points.22 The F-35’s limited payload will handicap the fighter in beyond-visual-range (BVR) combat in particular, which is characterized by low probabilities of kill per missile expended. As a result, a small payload will offer even less combat power in BVR engagements. This is especially problematic for an aircraft designed to favor BVR combat. During the Cold War, radar-guided missiles achieved a 6.6% probability of kill in BVR engagements. Of the conflicts featuring BVR engagements, the highest probability of kill was achieved by Israel in the 1982 Lebanon War, yielding a 20% kill rate. In the post-Cold War era, the effectiveness of BVR missiles improved.23 Through 2008, the United States achieved a 46% probability of kill with the AIM-120 AMRAAM (the mainstay of the U.S. BVR missile inventory), though these results are based on a tiny sample size of 6 engagements.24 8 However, the above gains in missile effectiveness should not be expected to apply to conflict against near-peer competitors. According to analysis by RAND, the U.S. AIM120 record is weighted heavily by circumstances that favor the shooter: None of the kills was achieved against adversaries that themselves had similar BVR missiles; the downed pilots did not employ electronic countermeasures, in some cases were fleeing, nonmaneuvering, or lacked radar; and one case (out of a total of six) was an instance of friendly fire. U.S. aircraft also enjoyed quantitative parity or superiority in all cases.25 These circumstances should not be expected to characterize BVR engagements between the United States and an advanced adversary. For example, the presence of electronic countermeasures alone would probably result in a drastically lower probability of kill as Russian and Chinese fighter aircraft presently employ electronic countermeasures that use digital radio frequency memory (DRFM) jamming reported to significantly hinder radar-guided missile effectiveness.26 2.2 Air-to-Ground Implications The F-35 has an internal payload capacity of just over 2,500 lbs. for the F-35B and just under 5,000 lbs. for the F-35A and F-35C. These payloads are less than one-third that of 4th-generation fighter and attack aircraft. As a result, the F-35 will carry only two Joint Direct Attack Munitions (JDAMs) or other heavy munitions to engage more robust ground targets, or a larger number of Small Diameter Bombs (SDBs) to strike lighter targets,27 except for the F-35B which cannot fit SDBs in its internal bays – an issue not scheduled to be resolved before 2022. 28 Advocates of the F-35 correctly point out that today’s precision munitions require fewer strikes to destroy targets than would have been needed a generation ago, but this is nonetheless an unimpressive payload for strike missions.29 Payload capacity may prove particularly important in contingencies against near-peer foreign militaries. Sophisticated, dense air defenses significantly increase the risk of strike missions. This also increases the value of greater payload because more munitions can mean fewer missions and, therefore, less risk. If the F-35 carries weapons externally, the aircraft’s payload capacity increases to between 15,000-18,000 lbs., about the same as or superior to the aircraft it is replacing. However, storing weapons externally would forgo the expensive stealth properties upon which the F-35’s survivability depends and incur further aerodynamic penalties on what is already a sluggish aircraft. And delivering these weapons in practice would still face significant challenges on account of sortie generation and range, discussed below. 9 2.3 Sortie Generation While payload is a measure of the ordinance and destructive potential of an aircraft per sortie, during a campaign the effectiveness of an aircraft depends on delivering ordinance to targets over time in the course of multiple missions. The number and duration of missions an aircraft can fly in a given time is therefore a key variable in its ability to actualize its combat power, something referred to as an aircraft’s “sortie generation rate.” It is doubtful the F-35 will be able to sustain high rates of sorties due to heavy maintenance necessitated by the complexity of the aircraft. As of October 2014, the F-35 was only able to achieve 61% of planned sorties (51% for the F-35C, 55% for the F-35A, and 72% for the F-35B) due to maintenance issues. Each variant of the aircraft is also behind its reliability and maintenance targets set for the current stage of development,30 and the Government Accountability Office (GAO) has characterized engine reliability as “very poor.”31 While the F-35 has not accumulated enough flight hours to be considered mature, key elements of the program’s approach to satisfying its sortie generation requirements are proving unsound. Efficient maintenance on the aircraft depends on the Automated Logistics Information System (ALIS), an information network created specifically for the F-35 to diagnose maintenance issues and facilitate supporting logistics and supply chains. Unless ALIS functions properly, the F-35 will not meet its sortie generation requirements. The GAO reports that the system “has failed to meet basic requirements, including having the ability to identify faults and failures in the aircraft,” despite being on a development timeline that is already seven years behind schedule.32 3. Range Beyond being outmaneuvered and outgunned, the F-35 will also have difficulty operating over the kinds of distances that high-end contingencies will likely require based on prevailing defense planning and doctrine.† While the F-35’s range is greater than some of the aircraft it will replace, the aircraft is nonetheless a continuation of DOD’s slanted investment in short-ranged manned tactical fighters.33 From the † Defense planners are increasingly concerned about so-called anti-access/area-denial (A2AD) capabilities that use precision strike, counter-space, and cyber weapons to increase the risk of U.S. power projection, including increasing the vulnerability of forward bases. The line of thinking to counter these threats – Air-Sea Battle (since renamed), for example – emphasizes long-range strike systems to decrease dependence on forward airbasing. This kind of strategic and operational thought would shape the demands put on the F-35 during a conflict, including many that the aircraft would be unable to satisfy, as we explain. How well-founded these assessments and responses are is another subject, but the point is that this line of thinking and the F-35’s capabilities are in tension. 10 perspective of prevailing doctrine, this emphasis is becoming increasingly untenable on account of geography and the proliferation of so-called anti-access capabilities that hold U.S. forward airbases at risk. These two factors are most severe in the Asia-Pacific, where they combine to challenge the ability of the United States to project power. 3.1 Geographic Challenges Today’s defense planners are increasingly focusing on the geographically expansive Asia-Pacific region, where 60% of American airpower will be deployed by 2020.34 Compared to Europe, the Asia-Pacific offers limited basing options and poses different challenges to gaining and maintaining operational access. The geographic size of the Asia-Pacific inherently limits the operational utility of short-ranged tactical fighters like the F-35. While the F-35’s combat radius of 600nm is greater than some of the aircraft it will replace, it is over 200nm less than that of the Su-27 and similar models employed by the Russian and People’s Liberation Army Air Forces. China also enjoys the advantage of considerable strategic depth that allows it to mass fighter aircraft in areas of interest to project power into nearby spaces. Moreover, this depth is well developed. For example, China operates 41 military and dual-use airfields within unrefueled combat radius of the Taiwan Strait.35 3.2 Anti-Access Challenges Defense planners increasingly characterize near-peer adversaries in terms of posing anti-access challenges to U.S. power projection.36 Anti-access threats hinder the ability to project power into a given theater, including disrupting the ability to use regional basing infrastructure. From this point of view, a force structure heavily made up of short-range fighters like the F-35 exacerbates the implications of anti-access threats by deepening dependence on at-risk regional basing. Anti-access challenges are most severe in the Western Pacific where Chinese conventionally-armed ballistic and airlaunched cruise missiles hold U.S. and allied forces at risk for 1,000-1,200 miles beyond the Chinese mainland.37 As a result, U.S. access to airbases in the Western Pacific is likely to be contested during a conflict or crisis, forcing reliance on distant basing. The only U.S. airbase in the region outside of the range of most Chinese long-range strike systems is Anderson Air Force Base, located 1,600 miles from Taiwan, 1,600 miles from the East China Sea, and 2,000 miles from the South China Sea. At these distances, sortie rates would be reduced to a trickle beyond the 1,000-1,500-mile maximum range stipulated by airpower analysts for effective fighter operations.38 China is also developing and deploying anti-access systems capable of holding at risk U.S. aircraft 11 carrier strike groups, especially anti-ship ballistic missiles, advanced anti-ship cruise missiles, and quiet diesel-electric submarines. To mitigate anti-access challenges, planners are experimenting with dispersing air forces to many locations and operating from austere, less-predictable locations to complicate enemy targeting.39 However, it is not clear that the F-35 will be able to operate effectively from austere locations given its delicate design and reliance on maintenance-intensive features like radar absorbent coatings. Moreover, dispersal is a method to reduce high levels of risk incurred by dependence on short-ranged tactical fighters and vulnerable basing, not an argument to invest severe costs doubling down on that dependence. In dealing with anti-access and geographic challenges, defenders of short-ranged aircraft may suggest mid-air refueling as a solution. While mid-air refueling extends range, it takes for granted a permissive environment where an adversary cannot target U.S. tanker aircraft. While this has been the U.S. experience against mid- to low-end adversaries like Iraq’s military in the 1990s and 2003, it cannot be taken for granted against a near-peer military with advanced air forces. The fragility of mid-air refueling means the usefulness of the F-35 will be limited by what some analysts have called the “tanker-tether problem.”40 The tanker-tether problem states that aircraft combat ranges are limited by the geographical points where they can be refueled by tanker aircraft. Refueling points, in turn, must remain out of the combined range of enemy aircraft or else accept high levels of risk. Today in the Western Pacific, the combination of Chinese aircraft unrefueled combat radii and missile range could force U.S. tankers to operate 750-1,000nm away from the Chinese mainland.41 Closer operations risk U.S. tankers being targeted by People’s Liberation Army Air Force fighters, including stealthy fighters like the J-20 that would be useful against such high-value assets. Under these conditions, the F-35 will not have sufficient range to engage in operations near or within Chinese airspace, and will have only limited time to loiter over forward maritime areas of interest. 4. The Limits of Stealth and the F-35 Lacking maneuverability and payload, the survivability of the F-35 will depend heavily on its stealth characteristics. In the context of modern warfare, stealth is the suppression or camouflage of any signature that could be used by the enemy to detect friendly platforms. With respect to aircraft, this mostly refers to heat or infrared emissions, electromagnetic emissions, and radar signature. Of these, stealth is usually most 12 associated with minimizing radar signature, an effect produced by a combination of radar-deflecting shapes and absorbent materials. Today’s stealth technology is an outgrowth of a broader “hider-seeker” competitive dynamic for an information advantage fundamental to all warfare, i.e., the evolving competition between the methods for finding an opponent and the methods for hiding.42 The kind of stealth technology used in modern aircraft has a development history dating back to World War II, when Germany experimented with radardeflecting shapes and radar-absorbing materials to counter allied radars. During the Cold War, the United States attempted to develop stealth technology in a series of projects, culminating in the stealthy F-117A, B-2, and F-22. By the end of the Cold War, the United States had invested heavily in stealth and adopted the technology as a part of its efforts to maintain an airpower advantage. The F-35 is the latest instance of this trend in the form of a multi-trillion dollar bet that the kind of stealth technology that has worked in the past will continue to work over the program’s five-decade-long service life. The problem for the F-35 is that there is growing evidence that the program is betting on the wrong side of the hider-seeker competition. Instead, it seems that the seekers – not the hiders – are gaining the advantage. Chief of Naval Operations Admiral Greenert wrote in 2012 that technological innovations “make stealth and its advantages increasingly difficult to maintain,” referring primarily to innovations in radar, computing, and infrared sensors. “Those developments do not herald the end of stealth, but they do show the limits of stealth design,” he concluded.43 Greenert more recently characterized stealth as “over-rated.”44 As we detail below, the limits of stealth are very real. In the case of the F-35, the limits of stealth may be especially harsh because its radar-evading qualities are built-in and difficult, if not impossible, to significantly alter once the aircraft is produced. 4.1 Counter-Stealth Radar The F-35 is reported to have a radar cross section (RCS) of 0.001 square meters from a narrow frontal aspect. This is the size that the F-35 appears on certain radars, despite its physical size, and is roughly equivalent to the size of a small ball bearing or insect.45 However, the F-35’s low-observable radar signature has “some gaps in coverage,”46 particularly when viewed from the sides, rear, bottom, or top for which a ten-times larger RCS of 0.01 square meters or larger has been reported.47 In other words, detection of the F-35 will be most difficult in head-on engagements and less difficult from other angles. By comparison, the F-22 is reported to have a smaller RCS of 0.0001 square 13 meters from the same narrow frontal aspect.48 But the returns on the kind of stealth technology employed by the F-35 are being diminished by advances in radar technology. The low-observable technology on the F35, and to a lesser extent the F-22, is designed to be effective against radar operating in the X-band range and at shorter wavelengths. The rationale behind this decision was that X-band radars detect aircraft with a high degree of accuracy and, as a result, are used to provide fire-control information to anti-aircraft missiles to engage targets. However, the same properties that make the F-35 stealthy against X-band radars do not apply as effectively to lower-frequency radars that operate on longer wavelengths. Lower-band radars are widely employed as surveillance radars to provide early detection of incoming targets at ranges that typically exceed those of X-band systems. Since lower-band radars detect targets with less accuracy, they were traditionally considered unsuitable for providing fire-control information to engage targets.49 But countries threatened by stealth aircraft have had decades of strong incentives to refine anti-stealth radars. As a result, lower-band radar technology has advanced considerably. So-called very high frequency (VHF) and ultra-high frequency (ULF)‡ radars that operate on longer wavelengths are now capable of providing usable targeting information, largely due to more powerful computers that can process returning radar signals more effectively to filter through clutter and more precisely locate targets.50 One former Navy official said plainly that because “Acquisition and fire control radars are starting to creep down the frequency spectrum…I don’t see how you long survive in the world of 2020 or 2030 when dealing with these systems” using today’s stealth technology employed by fighter aircraft.51 This is not strictly new. The effectiveness of such radar systems to target aircraft was demonstrated in 1999 when an American F-117A Nighthawk stealth attack aircraft (RCS of 0.003 square meters)52 was shot down by Yugoslav forces using a modified VHF radar model that was introduced in 1970.53 Foreign militaries are already deploying sophisticated counter-stealth radar systems. Newer systems like the Russian-built Nebo SVU/M VHF mobile ground-based radar are reportedly able to not only detect low-observable aircraft but do so accurately enough to direct missiles toward intended targets.54 The Chinese JY-26 VHF surveillance radar has reportedly been used to track F-22 flights on the Korean Peninsula.55 But advances in technology are also making even X-band radars on board fighters more capable of detecting stealth targets. The IRBIS-E X-band radar developed for the Russian Su-35 ‡ The VHF and UHF terminology is unfortunate because, despite their names, VHF and UHF radars actually operate at lower frequencies than X-band radar, a fact not captured by the nomenclature. 14 fighter can allegedly detect low-observable targets with a RCS of 0.01 square meters – the same as or smaller than the F-35 from non-frontal angles – at a distance of 50nm.56 4.2 Counter-Stealth Infrared Sensors Perhaps more significant than counter-stealth radar is the F-35’s vulnerability to detection by infrared sensors. Infrared search-and-track (IRST) systems, which are widely deployed on foreign fighter aircraft, can detect aircraft otherwise invisible to radar at significant distances without emitting any signal of their own. Nodding to IRST technology’s implications in bypassing radar stealth, Chief of Naval Operations Admiral Jonathan Greenert stated, “Let's face it, if something moves fast through the air, disrupts molecules and puts out heat—I don't care how cool the engine can be, it's going to be detectable.”57 The F-35 will be particularly vulnerable to IRST detection given its enormous engine that puts out 40,000 lbs. of thrust with no infrared shielding or suppression. Already, the OLS-35 IRST featured on the Su-35 can detect aircraft from the frontal aspect at nearly 30nm, from the rear at 50nm, and missile launches at similar distances. The Eurofighter Typhoon and other Western fighters are equipped with comparable or better technology. Moreover, IRST sensors are poised for significant boosts in detection ranges in the near future. Some analysts have predicted that IRST sensors will soon be able to detect aircraft or missile launches at ranges of 70nm or greater.58 F-35 Program Costs Pending the results of the DOD’s review of the number of F-35s it will ultimately purchase, the Department of Defense presently plans to procure a total of 2,457 F-35s for the Air Force, Navy, and Marine Corps. Broken down by service, the Air Force intends to purchase 1,763 F-35A conventional takeoff and landing (CTOL) variants, the Navy intends to purchase 260 F-35C carrier variants (CV), and the Marine Corps intends to purchase 340 F-35B short takeoff/vertical landing (STOVL) variants and 80 F35C variants.59 At a cost of approximately $1.4 trillion, the F-35 is the most expensive single weapons program in military history. But for the reasons outlined in the previous section, the capability that the F-35 fleet offers is very limited. This small return on investment, the result of the F-35’s high costs and modest capabilities, was not the program’s original intent. The F-35 program began 15 as part of a broader vision of a 5th-generation high-low mix for the U.S. fighter fleet, whereby the F-22 would provide high-end capability at high cost while the F-35 would provide less capability at less cost with greater numbers.60 To reduce production and development expenses in line with this scheme, the F-35 program used a single aircraft design as the baseline for all three variants that were to share 70-90% common parts.61 However, the design process produced three variants that have only 25% commonality.62 Rather than save money, analysis by the RAND Corporation found that the cost of the F-35 program actually exceeds likely costs for three separate aircraft models by between 37% and 65%.63 Costs mounted and capability decreased as the F-35 program advanced, undermining the logic of modest capability at an affordable price. Excluding the expense of operating and sustaining the aircraft, the most recent estimates anticipate a total program cost of $391.1 billion. These cost estimates are 70% greater than the initial projections of $233 billion made in 2001 when the program intended on acquiring 2,852 aircraft rather than the 2,457 under current plans (meaning that the program cost per plane has actually doubled).64 Total program expenses include research and development costs of $54.9 billion (up 60% from an estimate of $34.4 billion in 2001), procurement costs of $331.6 billion (up 71% from $196.6 billion), and military construction costs of $4.6 billion (up 140% from $2 billion).65 Simultaneously, the aircraft grew heavier, less maneuverable, and shorter-ranged than initially anticipated. The President’s FY2016 budget request for the Department of Defense requested over $11 billion for the F-35 program, approximately $8.7 billion of which was for procurement.66 Going forward, annual expenses threaten to strain procurement budgets in each service. Current plans are projected to require an average of $12.4 billion per year through 2038 to complete F-35 development and production, hovering around $15 billion per year for most of the 2020s.67 The Government Accountability Office has warned, “It is unlikely the program will be able to sustain such a high level of annual funding and if required funding levels are not reached, the program’s procurement plan may not be affordable.”68 An additional estimated $1.02 trillion will be required to operate and sustain the F-35 fleet over its 56-year service life.69 16 Figure 2: Program Acquisition Unit Cost (PAUC) For F-35 and 4th-Generation Aircraft it Will or May Replace Cost in Millions (2014 Constant Dollars) 180 159.2 160 140 120 100 80 $57.30 60 51.6 50.5 40 27.9 18.7 20 0 F-35* F/A-18C/D F-15** *does not distinquish between variants F-16 AV-8 A-10 **indicates may replace These costs make the F-35 significantly more expensive than the 4th-generation aircraft it will replace or serve alongside despite offering less capability in key areas. While some advocates have claimed the F-35 is comparable in price to 4th-generation fighters and attack aircraft, the data do not agree. As Figure 2 shows, the Program Acquisition Unit Cost (PAUC) of the F-35 is nearly $160 million,70 which is anywhere from three to nine times the cost of the aircraft the F-35 will replace (A-10, AV-8B, F-16, F/A-18C/D) or may replace (F-15).71 Of the many ways to measure the expense of aircraft, PAUC is the most complete in that it considers the full direct costs of producing a system, including research and development, the procurement cost of building the aircraft itself, and the military construction necessary to field the aircraft. The F-35 is also significantly more costly to operate compared to 4th-generation aircraft. The annual cost for sustaining the F-35 fleet is projected at $19.9 billion, $8.8 billion more (79%) than the $11.1 billion annual cost for sustaining legacy aircraft (F-15s, F-16s, AV-8Bs, and F/A-18s, excluding A-10s).72 As the result of producing aircraft concurrently with testing and evaluation, a projected $1.69 billion in additional expenses will be required to upgrade already produced F-35s to meet operational standards.73 17 Conclusion Despite plans for the F-35 to replace most of America’s fighter and attack aircraft, the platform is ill-suited to cost-effectively counter near-peer foreign militaries. The aircraft lacks the maneuverability, payload, likely ability to generate sorties, and range to effectively compete with near-peer competitors despite its lifetime costs of $1.4 trillion. The aircraft’s survivability depends largely upon stealth characteristics that are already at risk for obsolescence against adversaries who over the next 50 years will only continue to upgrade their radar and infrared detection systems. Given the critical failings of the F-35 program and its exorbitant costs, the aircraft should be regarded as a bad bet. As such, proceeding with the full program buy of nearly 2,500 units–or any large-scale buy that approaches that number–should be avoided. It is not too late to change course. While the outcome of the DOD’s review of its total F35 requirement is not yet clear, the program does not enter into full-rate production until 2019. Policymakers should take this opportunity to engage in debates about the future of airpower that have the potential to provide alternatives to a full-scale F-35 program. Airpower analysts are outlining new options to help counter near-peer adversaries. While that debate is outside the scope of this study, those options include unmanned systems, prioritizing effective munitions over expensive aircraft, and returning to a quantitatively driven approach to airpower featuring large numbers of comparatively inexpensive platforms. While these are some options, Congress and DOD should begin a dialogue and study the full range and timetables, costs, and benefits of potential alternatives to the program. Whether this opportunity to seriously reassess DOD’s commitment to the F-35 will be seized remains to be seen. But, by staying fully committed to the F-35 program, the United States is investing unprecedented resources in the wrong aircraft, at the wrong time, for the wrong reasons. 18 Appendix A: Comparing F-35 Performance to Other Fighters In making aircraft performance comparisons, we consulted an array of authoritative data sources, including Jane’s All the World’s Aircraft 2014-2015 (In Service; Development and Production), Jane’s Weapons 2014-2015: Air-Launched, Jane’s All the World’s Aircraft 2004-2005, manufacturers’ specifications, and reports by the Governmental Accountability Office, the Department of Defense, Congressional Research Service, and Air Power Australia. F-35 data presented here consist of official estimates relative to program threshold and objective requirements or the results of testing and evaluation. As the program is currently in developmental testing, the F-35’s real performance is still uncertain, although we did incorporate test results when possible. We reached out to Lockheed Martin Aeronautics Company in Fort Worth to ensure we portrayed the F-35 as accurately as possible but received no assistance. Using performance categories and scenarios collected from these sources, we compared all three F-35 variants to 4th-generation aircraft they will be replacing in the U.S. inventory (or may end up replacing in part, as with the F-15), 5th-generation aircraft they will serve alongside, and foreign 4th generation threat aircraft. These side-by-side comparisons involved 12 aircraft types measured against 16 performance characteristics identified as relevant to executing the F-35’s mission, as indicated by the Key Performance Parameters laid out in the Joint Strike Fighter Operational Requirements Document and those performance characteristics of fighter aircraft commonly reported in the literature. We did not include more specialized kinematic measures such as turn rates because the data were not available from authoritative sources for the F-35. No such data have been released by Lockheed Martin to our knowledge or publicly determined by the Department of Defense or any other authoritative source. The 16 performance characteristics we tested usually involve variables such as payload, amount of fuel, and other factors that affect how aircraft perform in specific circumstances. When possible, we standardized these variables. In all cases, we specified the assumed variables in the footnotes. As a result, not all comparisons are fully consistent despite our best efforts, but this is the messy reality of dealing with 19 open-source performance data. Nonetheless, what follows is the most comprehensive, detailed, and transparent comparison of the F-35 to other fighter and attack aircraft in any single source of which we are aware. Performance Categories Acceleration: How quickly aircraft can accelerate to a given speed determines their ability to engage and egress at will and also affects fuel burn. The available literature indicates that acceleration for combat aircraft is typically measured by the number of seconds it takes to increase speed through the transonic regime (Mach 0.8-1.2). Transonic speeds are more realistically achieved in combat, as opposed to higher supersonic speeds that require too much fuel and acceleration time. Altitude and payload (weapons and fuel) are major factors in acceleration. The acceleration data we found and present assume comparable payload and are calculated at 30,000 feet, with the exception of the F-15E (for which the data were calculated at maximum payload and at 40,000 feet, where acceleration is slower), and Su-27 (fuel and altitude assumptions unspecified). Wing loading: Wing loading is the weight of the aircraft divided by wing area, or the weight supported by each given unit of lifting surface. Wing loading is a measure of an aircraft’s available lift and an important metric for comparing aircrafts’ ability to maneuver and turn. Aircraft can maneuver harder when a given weight is supported by more lift. Note that wing area does not necessarily account for total lift (which can be produced by surfaces other than the wing of an aircraft). Nor is wing loading the final word in maneuverability, which is also affected by wing shape, airfoil, and control surfaces.74 For determining the weight of aircraft, we calculated combat loads using the same method used for thrust/weight, below. Wing loading is measured in pounds of weight per foot squared of gross wing area (lb/ft2), with lower measurements indicating more favorable values. Thrust/weight: Thrust-to-weight values express the pounds of thrust produced by an aircraft’s engine per pound of weight of the aircraft. The more thrust per pound of aircraft available, the faster it can accelerate or climb and the more power it has to overcome the drag created by hard maneuvers. Our literature review revealed myriad formulas for calculating thrust/weight values for different aircraft, usually distinguished by different definitions of accounting for total weight of the aircraft (e.g., fuel onboard, weapons load-out, etc.). These varying assumptions made comparing thrust/weight values between aircraft difficult with the available data. Therefore, we decided to derive our own baseline formula for a “combat weight” similar to that found 20 in some sources to generate more meaningful comparisons. For our purposes, we treated combat weight as 50% internal fuel and a full air-to-air weapons load-out, the composition of which was determined after reviewing weapons configurations and imagery found in authoritative data sources. This produced the equation Wc = IF/2 + We + Ww (except in the case of the A-10, where air-to-ground munitions were added). The objective was to provide typical and realistic, not necessarily maximum, load-outs (for example, our F/A-18C has four AIM-120 AMRAAMs when it can technically carry up to 10) to account for factors such as pylons taken up by dropped fuel tanks or the drag penalties imposed by dual missile rails. We provide separate values for thrust/weight of engines with and without the use of afterburners. Maximum thrust: Maximum thrust is the total engine static thrust output with afterburner. Thrust is important to acceleration, speed, and maneuverability. While the use of afterburner increases thrust, it consumes large amounts of fuel and is only used temporarily to enhance performance. Thrust output is measured in pounds of force, or pound-force (lbf). Military power: Military power is the total engine static thrust output without afterburner. Thrust is important to speed and maneuverability. Thrust output is measured in pounds of force, or pound-force (lbf). Empty weight: Empty weight is the weight of aircraft with systems, engines, etc. installed minus internal/external fuel and payload. Empty aircraft weight is measured in pounds (lbs.). Maximum Take-Off Weight (MTOW): MTOW is the maximum weight of an aircraft that is estimated to allow for safe take-off once the weight of fuel and weapons are added to the aircraft’s empty weight. Along with available space and hardpoints, maximum take-off weight limits the total weight of weapons, cargo, and other equipment that can be carried. Maximum take-off weight is measured in pounds (lbs.). In combat, MTOW is almost never used because it renders the plane far too sluggish. Maximum payload: Maximum payload is the total load of weapons, cargo, and other mission equipment that can be carried. Maximum payload weight is measured in pounds (lbs.). Internal fuel: Internal fuel is the amount of fuel an aircraft can carry internally, excluding external drop tanks. Internal fuel capacity is measured in pounds (lbs.). 21 Ferry range: Ferry range is the maximum safe range an aircraft can travel for purposes of redeployment without needing to return to base, maneuver, or carry payload. Ferry range is measured in nautical miles (nm). Range (IF): Range is the distance an aircraft can fly while taking into account fuel requirements for relevant maneuvers or payload weight. Range is measured in nautical miles (nm). Combat radius: Combat radius is the range for conducting and returning from a particular mission with a specific flight profile without in-flight refueling. Combat radius is generally calculated rather than proven in testing. Combat radius is subject to variable inputs such as mission flight profile (i.e., assumptions about getting to the target area, maneuvering against targets, and returning home), payload configuration, payload drag, etc. Although combat radii are highly variable, they are nonetheless important values that capture operational distances in real-world circumstances. We used combat radius figures from authoritative sources and detailed their assumptions regarding mission inputs in the footnotes in as much detail as possible. These assumptions frequently included external fuel tanks or heavy weapons that would reduce other performance parameters, such as acceleration or thrust to weight, but may not be reflected in those values on the chart (this was a feature of much of the data we observed in the literature as well). Combat radius is measured in nautical miles (nm). Maximum +g: Maximum +g measures the maximum amount of gravitational forces (gforces) that an aircraft’s structure can sustain without damage while maneuvering. Maximum +g rating of an aircraft is an important variable for airframe durability. Maximum +g is measured in gravitational force (g) as equivalent to one standard Earth gravity unit. Rate of climb: Measured at sea level, rate of climb indicates how quickly an aircraft can reach a given altitude. Rate of climb is an important aspect of maneuvering. Our charts measure climb rates in feet per minute (ft/min). Service ceiling: Service ceiling is the maximum altitude at which an aircraft can effectively operate. The higher and faster an aircraft can fly, the farther it can deploy its weapons and sensors. Service ceiling is measured in feet (ft). A note on maximum speed: While maximum speed can be important in some cases, reaching maximum speed requires a prohibitive amount of fuel and time to be useful in most combat circumstances. 22 F-35A CTOL F-35B STOVL 77 81 sec F-35C CV 0.62, 1.00 97 reheat 40,000 lbf 89.75 2 86 lb/ft 0.63, 0.92 98 reheat 38,000 lbf 62.53 2 88 lb/ft 0.77, 1.25 100 reheat 47,540 lbf 109 110 76 Acceleration 63 sec Wing loading 86.99 lb/ft 2 Max thrust Military power Empty weight MTOW Max payload F-15E* 78 ~100 sec 25,000 lbf 26,000 lbf 119 120 29,300 lb 32,300 lb 68.07 2 87 lb/ft 0.53, 0.85 99 reheat 40,000 111 lbf 25,000 121 lbf 34,800 lb 130 131 132 133 70,000-lb 142 class 18,000 lb 154 (4,788) 60,000-lb 143 class 15,000 lb 155 (2,695) 70,000-lb 144 class 18,000 lb (4,788) 58,250 lb 85 Thrust/Weight 108 sec F-15C* F-16C 50/52 79 79.05 lb/ft 2 42 sec 84.39 lb/ft 2 F-22A 81 24 sec 78.44 lb/ft 2 84.33 lb/ft 2 62.73 lb/ft 2 MiG-29/S 82 31 sec 65.60 lb/ft 2 94 69.32 lb/ft 0.74, 1.21 101 reheat 113 58,200 lbf 0.70, 1.15 102 reheat 29,100 lbf 0.69, 1.13 103 reheat 35,508 lbf 1.16 114 115 17,800 lbf 21,800 lbf 23,800 lbf 18,130 lbf 22,220 lbf 124 125 126 127 128 14,859 lb 23,611 lb 137 138 30,999 lb 47,400 lb 149 150 17,000 lb 16,000 lb 161 162 23,087 lb 163 (3,069) 10,700 lb 18,000 lb 35,600 lbf 33,946 lb 81,000 lb 134 146 19,643 135 48,000 lb 24,500 lb 158 19,522 lb 159 0.51 105 1.27 reheat 106 70,000 lbf 116 2 84 75.35 lb/ft 2 95 96 0.71, 1.17 107 reheat 36,600 lbf 0.67, 1.31 108 reheat 118 66,140 lbf 117 23,832 lb 147 104 75 27 sec 92 123 93 Su-27 83 91 56,000 lb 136 148 145 23,600 lb A-10 90 122 28,600 lb 80 AV-8B 89 112 29,180 lbf 28 sec F/A-18C/D 15,500 lb 160 157 43,340 lb 139 24,030 lb 33,750 lbf 129 36,111 lb 141 72,752 lb 153 17,637 lb 165 20,723 lb 177 2,370 nm 186 2,046 nm 192 140 83,500 lb 151 43,431 lb 152 9,921 lb 164 156 Internal fuel (IF) Ferry range 18,200 lb 13,100 lb 19,200 lb 13,455 lb 166 167 168 169 23,340 lb 170 7,116 lb 171 10,860 lb 172 2,500 nm Combat radius Max +G 204 Max speed at altitude Rate of climb 1,200 nm 900 nm 1,200 nm 187 188 189 456 nm 610 nm 194 195 613 nm 9.0 193 205 7.0 206 7.5 2,400 nm 179 2,415 nm 180 1,800 nm 1,089 nm 175 181 1,965 nm 2,300 nm 182 183 10,229 lb 176 1,600 nm 184 1,565 nm 185 190 1,133 nm 191 207 685 nm 9.0 196 208 Mach 1.6 Mach 1.6 Mach 1.6 Mach 2.5 217 218 219 220 Service ceiling 50,000 230 ft/min 60,000 ft 238 239 229 173 174 178 Range (IF) 7,759 lb 685-750 nm 200-845 nm 290-600 nm 197 198 199 9.0 209 Mach 2.5 9.0 221 50,000 231 ft/min 240 60,000 ft 210 Mach 2.0 7.5 222 50,000 232 ft/min 241 50,000 ft 211 Mach 1.8 223 50,000 233 ft/min 242 50,000 ft 594-627 200 nm 212 8.0 250-540 201 nm 213 7.33 9.0 Mach 0.98 Mach 0.56 Mach 1.7 224 225 14,700 234 ft/min 38,000 ft 6,000 235 ft/min 45,000 ft 243 244 214 50,000 ft 226 245 203 459-702 202 nm 215 9.0 840 nm Mach 2.3 Mach 2.17 227 228 64,960 236 ft/min 59,060 ft 45,275 237 ft/min 247 59,060 ft 9.0 216 246 KEY: Pink = F-35 Variant; Blue = 4th-generation aircraft F-35 will or may replace (may replace marked with an asterisk); Green = 5th-generation aircraft F-35 will serve alongside; Red = Foreign 4th-generation fighters; Gray = no authoritative data discovered. Notes 1 Gen. Dunford stated, “With projected adversarial threats challenging our current capabilities in coming years, the Joint Strike Fighter is a vital component of our effort to ensure the Joint Force maintains dominance in the air. Given the evolving defense strategy and the latest Defense Planning Guidance, we are presently taking the newest strategic foundation and analyzing whether 2,443 aircraft is the correct number. Until the analysis is complete, we need to pursue the current scheduled quantity buy to preclude creating an overall near-term tactical fighter shortfall.” “Advance Questions for General Joseph F. Dunford Jr., USMC, Nominee for the Position of Chairman of the Joint Chiefs of Staff." United States Senate Committee on Armed Services. Last modified July 9, 2015. Available at: http://www.armedservices.senate.gov/imo/media/doc/Dunford_07-09-15.pdf 2 Gen. Dunford stated, “Fifth-generation fighter aircraft, including the F-35, are critical as we contend with the technological advancements of near-peer competitors. We must ensure that we do not allow shortfalls in fighter capability or capacity to develop. The Department has been working diligently to make the overall cost per F-35 more affordable. Additionally, there will continue to be critical updates throughout the life cycle of the F-35 that will ensure the platform maintains a tactical advantage.” Ibid. 3 Chief of Staff of the U.S Air Force Gen. Mark Welsh said, "The decision to truncate the F-22 buy has left us in a position where even to provide air superiority, which was not the original intent of the F-35 development, but even to provide air superiority on a theater scale, in a full-spectrum fight against a well-armed foe in 10 years from now, let's say -and, remember, as a platform-based force, we're investing today for capability we'll need then -- you have to have the F-35 to augment the F-22 to do the air superiority fight at the beginning of a high-end conflict to survive against the fifth generation threats we believe will be in the world at that point in time." Thank you to Mandy Smithberger for pointing this out to me. “Press Briefing by Acting Secretary of the Air Force Eric Fanning and Air Force Chief of Staff General Mark A. Welsh III on the State of the Air Force in the Pentagon Briefing Room.” U.S. Department of Defense. December 13, 2013. Available at: http://www.defense.gov/transcripts/transcript.aspx?transcriptid=5344 4 “Deter, deny, and defeat state adversaries” is listed as a top national military objective in the National Military Strategy. Joint Chiefs of Staff. The National Military Strategy of the United States of America. June 2015. Available at: http://www.jcs.mil/Portals/36/Documents/Publications/2015_National_Military_Strategy.pdf 5 Lockheed Martin claims the F-35 will succeed in its air-to-air role by leveraging BVR engagements. The Air Force made the same claim with the F-4 Phantom, which turned out to be false. “The U.S. Air Force Promised the F-4 Would Never Dogfight.” War is Boring. Last modified July 6, 2015. Available at: https://medium.com/war-is-boring/the-u-s-airforce-promised-the-f-4-would-never-dogfight-3e1a66da4e73 6 Time Magazine, F-35 Joint Strike Fighter. Time Magazine, Military, 2013. Available at: https://timemilitary.files.wordpress.com/2013/01/f-35-jsf-dote-fy12-annual-report.pdf. 7 “The Sustained Turning Performance of the F-35A Lightning II was recently disclosed as 4.95 G at Mach 0.8 and 15,000 ft. A 1969 F-4 Phantom II could sustain 5.5 Gs at 0.8 Mach with 40 percent internal fuel at 20,000 feet.” Goon, Peter, and Carlo Kopp, “Air Combat: Russia’s PAK-FA versus the F-22 and F-35.” Air Power Australia. Available at: http://www.ausairpower.net/APA-NOTAM-300309-1.html#3. 8 See the program objectives: “Joint Strike Fighter.” Air Power Australia. Last modified June 7, 2014. Available at: http://www.ausairpower.net/jsf.html 9 Air Power Australia, “Joint Strike Fighter.” Air Power Australia. Last modified June 7, 2014. Available at: http://www.ausairpower.net/jsf.html. 10 “The fuel levels and payloads at which maneuverability is calculated differs for each variant but generally focuses on a post-weapons release payload and fuel state at 50% of the required combat radius.” Bowman, Geoffrey P. “Scorecard: A Case study of the Joint Strike Fighter Program.” Air Command and Staff College, Air University. Last modified April 2008. Available at: https://www.afresearch.org/skins/rims/q_mod_be0e99f3-fc56-4ccb-8dfe-670c0822a153/q_act_downloadpaper/q_obj_19233467-2759-4d04-8da4e22afe648499/display.aspx?rs=enginespage 11 Government Accountability Office, “Navy Aviation: F/A-18E/F Will Provide Marginal Operational Improvement at High Cost,” H.R. Doc. No. 104-GAO/NSIAD-96-98, 2d Sess. (1996). Available at: http://www.gao.gov/archive/1996/ns96098.pdf. 12 Mills, Chris. “Review of the Defense Annual Report 2010-2011 – Assessing the Evidence Provided by AVM KYM Osley, New Air Combat Capability Project Manager.” Testimony provided to the Defense Sub-Committee, Joint Standing Committee on Foreign Affairs, Defense and Trade, Parliament of Australia. March 30, 2012. Available at: www.aphref.aph.gov.au-house-committee-jfadt-defenceannualreport_2010_2011-submissions-sub11(1).pdf 24 13 Bill Sweetman, “Controversy Flares Over F-35 Air Combat Report,” Aviation Week, last modified July 2, 2015. Available at: http://aviationweek.com/defense/controversyflares-over-f-35-air-combat-report. 14 See: “Test Pilot Admist the F-35 Can’t Dogfight.” War is Boring. Last modified June 29, 2015. Available at: https://medium.com/war-is-boring/test-pilot-admits-the-f-35-can-tdogfight-cdb9d11a875. See also: “Read for Yourself – the F-35’s Damning Dogfighting Report.” War is Boring. Last modified July 1, 2015. Available at: https://medium.com/waris-boring/read-for-yourself-the-f-35-s-damning-dogfighting-report-719a4e66f3eb 15 “Joint Program Office Response to ‘War is Boring’ Blog.” Lockheed Martin – F-35 Lightning II. Last modified July 1, 2015. Available at: https://www.f35.com/news/detail/jointprogram-office-response-to-war-is-boring-blog 16 Mills, Chris. “Submission No. 11: Review of the Defense Annual Report 2010-2011 – Assessing the Evidence Provided by AVM KYM Osley, New Air Combat Capability Project Manager.” Testimony provided to the Defense Sub-Committee, Joint Standing Committee on Foreign Affairs, Defense and Trade, Parliament of Australia. March 30, 2012. Available at: www.aphref.aph.gov.au-house-committee-jfadt-defenceannualreport_2010_2011-submissions-sub11(1).pdf 18 Mills, Chris. “Submission No. 5: Review of the Defense Annual Report 2010-2011 – Loss-Exchange-Ratios Information.” Defense Sub-Committee, Joint Standing Committee on Foreign Affairs, Defense and Trade, Parliament of Australia. Available at: www.aphref.aph.gov.au-house-committee-jfadt-defenceannualreport_2010_2011-submissionssub5(1).pdf 19 The simulation against Su-35s was conducted by a firm named REPSIM and modelled force-on-force engagement between 24 Chinese Su-35 as 24 F-35s plus enabling aircraft. The model assumed U.S. forces were operating from Guam, on the basis that access was denied from closer air basing by PLA precision strikes, and that land-based HighFrequency Over-the-Horizon Radar directed Chinese forces towards the U.S. forces until other advanced sensors allowed them to engage the otherwise stealthy F-35s. See the following section for why these assumptions are consistent with developments in counter-stealth sensors. 20 Lockheed Martin, “F-35C Carrier Variant.” Available at: http://www.lockheedmartin.com/us/products/f35/f-35c-carrier-variant.html and Majumdar, Dave, “Pentagon Worries That Russia Can Now Outshoot U.S. Stealth Jets.” The Daily Beast. Last modified December 4, 2014. Available at: http://www.thedailybeast.com/articles/2014/12/04/pentagonworries-that-russia-can-now-outshoot-u-s-stealth-jets.html. 21 Axe, David, “Joint Strike Fighter’s Outrageous Claim.” Wired. Last modified September 9, 2008. Available at: http://www.wired.com/2008/09/joint-strike-fi/. 22 SinoDefence, “PLAAF SU-27 / J-11 ‘FLANKER’.” SinoDefence | Chinese Aeronautics and Astronautics. Last modified June 20, 2014. Available at: http://sinodefence.com/chinese-military-aircraft/plaaf-su-27-j-11-flanker/. 23 Patrick Higby, “Promise and Reality: Beyond Visual Range (BVR) Air-To-Air Combat.” Air War College, Air University. Last modified March 30, 2015. Available at: http://pogoarchives.org/labyrinth/11/09.pdf 24 John Stillion and Scott Perdue, “Air Combat Past, Present and Future.” RAND Corporation, Project Air Force. Last modified August 2008. Available at: http://www.mossekongen.no/downloads/2008_RAND_Pacific_View_Air_Combat_Briefing.pdf 25 Ibid. 26 Russian and Chinese aircraft deploy digital radio frequency memory (DRFM) jammers which are reported to “effectively memorize an incoming radar signal and repeat it back to the sender, seriously [hampering] the performance of friendly radars. Worse, these new jammers essentially blind the small radars found onboard air-to-air missiles like the Raytheon AIM-120 AMRAAM, which is the primary long-range weapon for all U.S. and most allied fighter planes.” See: Majumdar, Dave, “Pentagon Worries That Russia Can Now Outshoot U.S. Stealth Jets.” The Daily Beast. Last modified December 4, 2014. Available at: http://www.thedailybeast.com/articles/2014/12/04/pentagon-worries-that-russiacan-now-outshoot-u-s-stealth-jets.html. 27 See Hayward, Doug. “F-35 Weapon System Overview. Report no. JSF 10-205.” N.p.: Lockheed Martin Aeronautics Company, 2010. Available at: http://www.dtic.mil/ndia/2010armament/TuesdayLandmarkADougHayward.pdf. 28 Osborn, Kris, “New Small Diameter Bomb Doesn’t Fit Inside Marine’s F-35B.” Military.com. Last modified March 4, 2015. Available at: http://www.military.com/dailynews/2015/03/04/new-small-diameter-bomb-doesnt-fit-inside-marines-f35b.html. 25 29 Rogoway, Tyler, “Pierre Sprey's Anti-F-35 Diatribe Is Half Brilliant And Half Bullshit.” Foxtrot Alpha. Last modified June 20, 2014. Available at: http://foxtrotalpha.jalopnik.com/pierre-spreys-anti-f-35-diatribe-is-half-brilliant-and-1592445665. 30 Department of Defense, Office of the Director, Operational Test and Evaluation. FY2014 Annual Report: F-35 Joint Strike Fighter (JSF). Last modified January 2015. Available at: https://www.documentcloud.org/documents/1667970-2014f35jsf.html#document/p22/a205814. 31 Brian Dowling, “Federal Auditors Rate Reliability of F-35 Engine ‘Very Poor,’” Military.com, last modified April 28, 2015. Available at: http://www.military.com/dailynews/2015/04/28/federal-auditors-rate-reliability-of-f-35-engine-very-poor.html. 32 Government Accountability Office, F-35 Sustainment: Need for Affordable Strategy, Greater Attention to Risks, and Improved Cost Estimates. By Cary Russell. GAO-14-778. Last modified September 2014. Available at: http://www.gao.gov/assets/670/666042.pdf. 33 French, Bill. “Reshaping Pentagon spending and Capabilities: Setting Priorities for the Future.” National Security Network. Last modified March 1, 2013. Available at: http://nsnetwork.org/cms/assets/uploads/2013/03/NSN-Reshaping-Pentagon-Spending-and-Capabilities_Future-Priorities_FINAL-0313132.pdf. 34 Parish, Karen. “U.S. Following Through on Pacific Rebalance, Hagel Says.” U.S. Department of Defense. Last modified June 1, 2013. Available at: http://www.defense.gov/news/newsarticle.aspx?id=120186 35 Eric Stephen Gons, “Access Challenges and Implications for Airpower in the Western Pacific.” RAND Corporation, Pardee RAND Graduate School. Last modified 2011. Available at: http://www.rand.org/content/dam/rand/pubs/rgs_dissertations/2011/RAND_RGSD267.pdf 36 See: Department of Defense, 2014 Quadrennial Defense Review. Last modified March 4, 2014. Available at: http://www.defense.gov/pubs/2014_Quadrennial_Defense_Review.pdf Focus on countering anti-access systems has also been reflected in doctrine, first under the Air-Sea Battle concept, now renamed Joint Access and Maneuver in the Global Commons. 37 In some cases the level of risk incurred by operating within range of Chinese long-range strike systems is severe. For example, one RAND study concluded that 34 sub-munition warheads delivered by short ranged ballistic missiles (SRBMs) could destroy or damage 75% of the aircraft stationed at Kadena Airbase on Okinawa. For more: John Stillion and Scott Perdue, “Air Combat Past, Present and Future.” RAND Corporation, Project Air Force. Last modified August 2008. Available at: https://www.defenseindustrydaily.com/files/2008_RAND_Pacific_View_Air_Combat_Briefing.pdf For general information, see: Eric Stephen Gons, “Access Challenges and Implications for Airpower in the Western Pacific.” RAND Corporation, Pardee RAND Graduate School. Last modified 2011. Available at: http://www.rand.org/content/dam/rand/pubs/rgs_dissertations/2011/RAND_RGSD267.pdf and Gunzinger, Mark A. “Sustaining America’s Advantage in Long-Range Strike.” Center for Strategic and Budget Analysis. Last modified 2010. Available at: http://csbaonline.org/publications/2010/09/americas-strategic-advantage-long-range-strike/ 38 For a fairly extensive assessment of the implications of relying on Anderson AFB, see: Gons, Eric Stephen. “Access Challenges and Implications for Airpower in the Western Pacific.” Publication no. RGSD-267. N.p.: RAND Corporation, 2011. Available at: http://www.rand.org/pubs/rgs_dissertations/RGSD267.html Ranges of Anderson AFB to the East and South China Seas were gathered from Google Maps. 39 Berteau, David J., and Michael J. Green, et al. “U.S. Force Posture Strategy in the Asia Pacific Region: An Independent Assessment.” N.p.: Center for Strategic and International Studies, 2012. Available at: http://csis.org/files/publication/120814_FINAL_PACOM_optimized.pdf. See also: The Diplomat. “The US Air Force’s New Game Plan in the Asia-Pacific.” The Diplomat. Last modified October 9, 2013. Available at: http://thediplomat.com/2013/10/the-us-air-forces-new-game-plan-in-the-asia-pacific/ 40 Martinage, Robert. “Toward a New Offset Strategy: Exploiting U.S. Long-Term Advantages to Restore U.S. Global Power Projection Capability.” N.p.: Center for Strategic and Budgetary Assessments, 2014. Available at: http://csbaonline.org/publications/2014/10/toward-a-new-offset-strategy-exploiting-u-s-long-term-advantages-to-restore-u-sglobal-power-projection-capability/. See also: Knepper, Greg, and Peter W. Singer. “Short Legs Can't Win Arms Races: Range Issues and New Threats to Aerial Refueling put U.S. Strategy at Risk.” War on the Rocks. Available at: http://warontherocks.com/2015/05/short-legs-cant-win-arms-races-range-issues-new-threats-aerial-refueling/?singlepage=1 41 Ibid 42 Watts, Barry. "The Maturing Revolution in Military Affairs." Center for Strategic and Budgetary Assessments. Last modified June 2, 2011. Available at: http://csbaonline.org/publications/2011/06/the-maturing-revolution-in-military-affairs/ 26 43 Greenert, Jonathan W., Adm. "Payloads over Platforms: Charting a New Course." U.S. Naval Institute. Last modified July 2012. Available at: http://www.usni.org/magazines/proceedings/2012-07/payloads-over-platforms-charting-new-course 44 Osborn, Kris. "CNO: Next-Generation Navy Fighter Might Not Need Stealth." DefenseTech: Where Technology and Defense Interact. Last modified February 5, 2015. Available at: http://defensetech.org/2015/02/05/cno-next-generation-navy-fighter-might-not-need-stealth/ 45 Global Security. "Radar Cross Section (RCS)." Global Security. Last modified November 7, 2011. Available at: http://www.globalsecurity.org/military/world/stealth-aircraftrcs.htm 46 Congressional Research Service. F-35 Joint Strike Fighter (JSF) Program. By Jeremiah Gertler. Research report no. RL30563. Washington, DC: Congressional Research Service, 2014. Available at: https://fas.org/sgp/crs/weapons/RL30563.pdf 47 Mills, Chris. "Air Combat: Russia's PAK-FA versus the F-22 and F-35." Air Power Australia: Australia's Independent Defense Think Tank. Last modified March 30, 2009. Available at: http://www.ausairpower.net/APA-NOTAM-300309-1.html 48 Ibid. 49 For a summary of radar, stealth, and counter-stealth radar technical considerations, see: Watts, “The Maturing Revolution in Military Affairs,” available at: http://csbaonline.org/publications/2011/06/the-maturing-revolution-in-military-affairs/ 50 For a summary of some current and potential dynamics involving lower-band radars, see: Kopp, Carlo. "Russian VHF Counter Stealth Radars Proliferate." Defense Today, 2008, 32-36. Available at: http://www.ausairpower.net/SP/DT-Rus-VHF-Radar-2008.pdf 51 Majumdar, Dave. "Chinese and Russian Radars On Track to See Through U.S. Stealth." USNI News. Last modified July 29, 2014. Available at: http://news.usni.org/2014/07/29/chinese-russian-radars-track-see-u-s-stealth 52 Global Security, “Radar Cross Section (RCS).” Available at: http://www.globalsecurity.org/military/world/stealth-aircraft-rcs.htm 53 See Kopp, “Russian VHF Counter Stealth Radars Proliferate,” 32-36. Available at: http://www.ausairpower.net/SP/DT-Rus-VHF-Radar-2008.pdf 54 Kopp, Carlo. "Russian / PLA Low Band Surveillance Radars." Air Power Australia. Last modified April 2012. Available at: http://www.ausairpower.net/APA-Rus-Low-BandRadars.html: Kopp, Carlo. "Assessing Joint Strike Fighter Defense Penetration Capabilities Annex A, B, C." Air Power Australia. Last modified January 7, 2009. Available at: http://www.ausairpower.net/APA-2009-01-Annex.html#mozTocId787784 55 Minnick, Wendell. "China's Anti-Stealth Radar Comes to Fruition." Defense News. Last modified November 22, 2014. Available at: http://archive.defensenews.com/article/20141122/DEFREG03/311220016/China-s-Anti-Stealth-Radar-Comes-Fruition 56 Kopp, Carlo. "Sukhoi Flankers: The Shifting Balance of Regional Air Power." Air Power Australia. Last modified April 2012. Available at: http://www.ausairpower.net/APAFlanker.html 57 Osborn, “CNO: Next-Generation Navy Fighter Might Not Need Stealth.” Available at: http://defensetech.org/2015/02/05/cno-next-generation-navy-fighter-might-not-needstealth/ 58 Quantum Well Imaging Photodetectors (QWIP) increase the sensitivity of infrared sensors and allow the detection of heat signatures from greater ranges and with greater accuracy. Mills, Chris. “Air Combat: Russia’s PAK-FA versus the F-22 and F-35.” Air Power Australia. Last modified March 30, 2009. Available at: http://www.ausairpower.net/APA-NOTAM-300309-1.html 59 Gertler, Jeremiah, “F-35 Joint Strike Fighter (JFS) Program,” (CRS Report No. RL30563). Washington D.C: Congressional Research Service, 2014. Available at: https://fas.org/sgp/crs/weapons/RL30563.pdf. 60 Ibid. 61 This strategy was intended to save “at least $15 billion” compared to the cost of producing three entirely separate aircrafts, one for each service. Ibid 62 Project on Government Oversight, “Air Force’s Rush to Station Unproven F-35A Joint Strike Fighter in Burlington is Irresponsible and Potentially Dangerous.” News release. November 6, 2013. Available at: http://www.pogo.org/about/press-room/releases/2013/air-forces-rush-to-station-unproven-f35.html?referrer=https://www.google.com/. 63 Lorell, Mark A., Michael Kennedy, Robert S. Leonard, Ken Munson, Shmuel Abramzon, David L. An and Robert A. Guffey. “Do Joint Fighter Programs Save Money?” Santa Monica, CA: RAND Corporation, 2013. Available at: http://www.rand.org/pubs/monographs/MG1225. 27 64 Thank you to Winslow Wheeler for pointing this out to me via e-mail. Government Accountability Office, “F-35 Joint Strike Fighter: Assessment Needed to Address Affordability Challenges,” H.R. Rep. No. 114-GAO-15-364, 1st Sess. (2014). Available at: http://www.gao.gov/assets/670/669619.pdf. 66 Office of the Secretary of Defense (Comptroller)/CFO February 2015, “United States Department of Defense Fiscal Year 2016 Budget Request: Program Acquisition Cost by Weapon System,” (2015). Available at: http://comptroller.defense.gov/Portals/45/Documents/defbudget/fy2016/FY2016_Weapons.pdf. 67 Government Accountability Office, “F-35 Joint Strike Fighter: Assessment Needed to Address Affordability Challenges,” H.R. Rep. No. 114-GAO-15-364, 1st Sess. (2014). Available at: http://www.gao.gov/assets/670/669619.pdf. 68 Ibid 69 Government Accountability Office, “F-35 Sustainment: Need for Affordable Strategy, Greater Attention to Risks, and Improved Cost Estimates,” H.R. Doc. No. 113-GAO-14-778, 2d Sess. (2014). Available at: http://www.gao.gov/assets/670/666042.pdf. 70 The PAUC of $160 million divides the total program costs by the total number of units produced and does not distinguish be the F-35A, F-35B, and F-35C variants. 65 The PAUC for each aircraft was determined by dividing the total cost of each program by the units produced. The data used are from the Selected Acquisition Report (SAR) series produced by the Department of Defense. The specific data used for each aircraft were selected from the most recent report to provide data for that aircraft, meaning those given were the most comprehensive out of the relevant SARs. However, since the SAR reports stopped on each aircraft, upgrades have continued on each airframe which would add to the PAUC cost. These costs were not discovered and not included in PAUC costs. While this means that legacy PAUCs are actually higher than those recorded in the SARs, it is also true that by the time the F-35 reaches its later operational life that additional upgrades which are not presently anticipated will also have to be counted towards the total cost of the program, which is likewise not reflected in its PAUC. The dollar values of each aircraft were converted into 2014 dollars using the Department of Labor inflation calculator. For the F-35, the engine and aircraft figures (recorded separately) were combined from: Office of the Under Secretary of Defense for Acquisition, Technology and Logistics; Acquisition Resources and Analysis (ARA) Deputy Director of Acquisition Management, Selected Acquisition Report (SAR) Summary Tables, Doc. (2015). Available at: http://www.acq.osd.mil/ara/sar/SST-2014-12.pdf. For the F/A-18C/D, see: Office of the Under Secretary of Defense for Acquisition and Technology; Selected Acquisition Report (SAR) Summary Tables, Doc. (1995). Available at: http://www.acq.osd.mil/ara/sar/1994-DEC-SARSUMTAB.pdf. For the F-15, see: Office of the Under Secretary of Defense for Acquisition, Cost Management; Selected Acquisition Report (SAR) Summary Tables, Doc. (1991). Available at: http://www.acq.osd.mil/ara/sar/1990-DEC-SARSUMTAB.pdf. For the F-16, see: Office of the Under Secretary of Defense for Acquisition and Technology; Selected Acquisition Report (SAR) Summary Tables, Doc. (1995). Available at: http://www.acq.osd.mil/ara/sar/1994-DEC-SARSUMTAB.pdf. For the Av-8B see: Office of the Under Secretary of Defense for Acquisition and Technology, Performance Management; Selected Acquisition Report (SAR) Summary Tables, Doc. (1993). Available at: http://www.acq.osd.mil/ara/sar/1992-DEC-SARSUMTAB.pdf. For the A-10 see: Office of the Assistant Secretary of Defense (Comptroller); Selected Acquisition Report (SAR) Highlights, Doc. (1982). Available at: http://www.acq.osd.mil/ara/sar/1982-MAR-SARSUMTAB.pdf. 28 72 Government Accountability Office, “F-35 Sustainment: Need for Affordable Strategy, Greater Attention to Risks, and Improved Cost Estimates,” H.R. Doc. No. 113-GAO-14-778, 2d Sess. (2014). Available at: http://www.gao.gov/assets/670/666042.pdf 73 Drew, James, “F-35 Concurrency Cost Rises Slightly, but Trend Stabilises.” Flightglobal.com. Last modified May 4, 2015. Available at: http://www.flightglobal.com/news/articles/f-35-concurrency-cost-rises-slightly-but-trend-stabilises-411882/ 75 Refers to models: Su-27/UB/SK/SMK “The program announced an intention to change performance specifications for the F-35A, reducing turn performance from 5.3 to 4.6 sustained g’s and extending the time for acceleration from 0.8 Mach to 1.2 Mach by 8 seconds. These changes were due to the results of air vehicle performance and flying qualities evaluations.” Testing conducted at 30,000 ft. The fuel levels and payloads at which maneuverability is calculated differs for each variant but generally focuses on a post-weapons release payload and fuel state at 50% of the required combat radius. Department of Defense. The Office of the Director, Operational Test and Evaluation. DOT&E FY2012 Annual Report, 30. Last modified December 2012. Available at: http://www.dote.osd.mil/pub/reports/FY2012/pdf/dod/2012f35jsf.pdf and Bowman, Geoffrey. “Scorecard: A Case study of the Joint Strike Fighter Program.” Air Command and Staff College, Air University. Last modified April 2008. Available at: http://2011.uploaded.fresh.co.il/2011/05/18/36290792.pdf 77 “The program announced an intention to change performance specifications for the F-35B, reducing turn performance from 5.0 to 4.5 sustained g’s and extending the time for acceleration from 0.8 Mach to 1.2 Mach by 16 seconds. These changes were due to the results of air vehicle performance and flying qualities evaluations.” Testing conducted at 30,000 ft. The fuel levels and payloads at which maneuverability is calculated differs for each variant but generally focuses on a post-weapons release payload and fuel state at 50% of the required combat radius. Ibid., 32. Available at: http://www.dote.osd.mil/pub/reports/FY2012/pdf/dod/2012f35jsf.pdf and Ibid., Available at: http://2011.uploaded.fresh.co.il/2011/05/18/36290792.pdf 78 “The program announced an intention to change performance specifications for the F-35C, reducing turn performance from 5.1 to 5.0 sustained g’s and increasing the time for acceleration from 0.8 Mach to 1.2 Mach by at least 43 seconds. These changes were due to the results of air vehicle performance and flying qualities evaluations.” Testing conducted at 30,000 ft. The fuel levels and payloads at which maneuverability is calculated differs for each variant but generally focuses on a post-weapons release payload and fuel state at 50% of the required combat radius. Ibid., 33. Available at: http://www.dote.osd.mil/pub/reports/FY2012/pdf/dod/2012f35jsf.pdf and Ibid., Available at:http://2011.uploaded.fresh.co.il/2011/05/18/36290792.pdf. 79 At 58,100 lb. gross weight and 40,000 ft. McDonnell Douglas Aerospace. “TO 1F-15E-1 Flight Manual,” 602. Avialogs. Last modified April 15, 1993. Available at: http://www.avialogs.com/index.php/en/aircraft/usa/mcdonnelldouglas/f-15eagle/to-1f-15e-1-flight-manual-f-15e-aircraft.html#download. 80 “Two IR Missiles + Two BVR Provisions + 50% Fuel.” Goon, Peter and Kopp, Carlo. “Joint Strike Fighter – Comparison: Acceleration Performance at 30,000 FT – ISA.” Air Power Australia. Last modified 2012. Available at: http://www.ausairpower.net/jsf.html. 81 “Two IR Missiles + Two BVR Provisions + 50% Fuel.” Ibid. 82 “Two IR Missiles + Two BVR Provisions + 50% Fuel.” Ibid. 83 “Two IR Missiles + Two BVR Provisions + 50% Fuel.” Ibid. 84 From 324 kt. to 701 kt., altitude unspecified. Jackson, Paul, Fred Jane, C.G. Grey, John Taylor, and Mark Lambert, eds. Jane's All the World's Aircraft, 2004-2005. 95th ed. Surrey: Jane's Information Group, 2005. 85 Own calculation: 9,100 lb. fuel + 29,300 lb. empty weight + 180 rounds of 25mm GAU-22/A ammunition at 198 lb. + four internal AIM-120C-5’s at 354 lb. each = 40,014 lb. 2 combat weight, divided by 460 ft wing area. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul th Jackson. Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched. 60 Revised ed. London: Jane’s Information Group, 2014. 86 Own calculation: 6,550 lb. fuel + 32,300 lb. empty weight + 1,017 lb. gun pod with 220 rounds of 25mm GAU-22/A ammunition + four internal AIM-120C-5’s at 354 lb. each = 2 41,283 lb. combat weight, divided by 460 ft wing area. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched. 76 29 87 Own calculation: 9,600 lb. fuel + 34,800 lb. empty weight + 1,017 lb. gun pod with 220 rounds of 25mm GAU-22/A ammunition + four internal AIM-120C-5’s at 354 lb. each = 2 46,833 lb. combat weight, divided by 688 ft wing area. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched. 88 Own calculation: 6,727.5 lb. fuel + 28,600 lb. empty weight +940 rounds of 20mm M61A1 ammunition at 528 lb. + four AIM-120C-5’s at 354 lb. each + four AIM-9X’s at 187 lb. 2 each = 38,019.5 lb. combat weight, divided by 608 ft wing area. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter; Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched and McDonnell Douglas Corporation. “F-15 Armament Handbook.” Avialogs. Last modified October 1979. Available at: http://www.avialogs.com/en/aircraft/usa/mcdonnelldouglas/f-15eagle/f-15-armament-handbook.html 89 Own calculation: 11,670 lb. fuel + 33,946 lb. empty weight + 510 rounds of 20mm M61A1 ammunition at 281 lb. + four AIM-120C-5’s at 354 lb. each + four AIM-9X’s at 187 lb. 2 each = 48,061 lb. combat weight, divided by 608 ft wing area. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson; Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched and “F-15E 20mm Gatling Gun.” General Dynamics Ordnance and Tactical Systems. Available at: http://www.gd-ots.com/armament_systems/ags_F-15E.html. 90 Own calculation: 3,558 lb. fuel + 19,643 lb. empty weight + 511 rounds of 20mm M61A1 ammunition at 325 lb. + four AIM-120C-5’s at 354 lb. each + two AIM-9X’s at 187 lb. 2 each = 25,316 lb. combat weight, divided by 300 ft wing area. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson; Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched and “F-16 20mm Gun System.” General Dynamics Ordnance and Tactical Systems. Available at: http://www.gd-ots.com/armament_systems/ags_F-16.html. 91 Own calculation: 5,430 lb. fuel + 23,832 lb. empty weight + 578 rounds of 20mm M61A2 ammunition at 325 lb. + two AIM-9X’s at 187 lb. each + four AIM-120C-5’s at 354 lb. 2 each = 31,377 lb. combat weight, divided by 400 ft wing area. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter; “F/A-18E/F 20mm Gatling Gun System.” General Dynamics Ordnance and Tactical Systems. Available at: http://www.gd-ots.com/armament_systems/ags_F-18.html; and Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched. 92 Own calculation: 3,880 lb. fuel + 14,859 lb. empty weight + 300 rounds of 25mm GAU-12/A ammunition at 330 lb. + four AIM-9X’s at 187 lb. each + two AIM-120C-5’s at 354 2 lb. each = 20,525 lb. combat weight, divided by 243.4 ft wing area. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter; Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched; and Friedman, Norman. The Naval Institute Guide to World Naval Weapons Systems, 1997-1998. Annapolis, Maryland: U.S. Naval Institute, 1997. 267. Available at: https://books.google.com/books?id=lDzknmTgDUC&pg=PA267&lpg=PA267&dq=Harrier+ventral+gun+pod&source=bl&ots=2tcQF1ueDp&sig=ZDn1xMpQWsSt845i0KC3EMIooyA&hl=en&sa=X&ei=A3EXVdjTH4ndsAT u8YHoBw&ved=0CDEQ6AEwBDgK#v=onepage&q=Harrier%20ventral%20gun%20pod&f=false 93 Own calculation: 5,350 lb. fuel + 23,611 lb. empty weight + 1,350 rounds of 30mm GAU-8/A ammunition at 2,025 lb. + four AIM-9M’s at 189 lb. each = 31,742 lb. combat 2 weight, divided by 506 ft wing area. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter; Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched and “30mm GAU-8/A Ammunition.” Orbital ATK. November 2002. Available at: https://www.orbitalatk.com/defense-systems/small-calibersystems/30mm/docs/GAU-8A_Fact_Sheet.pdf 94 Own calculation: 9,000 lb. fuel + 43,340 lb. empty weight + 480 rounds of 20mm M61A2 ammunition at 270 lb. + six AIM-120C-5’s at 354 lb. each + two AIM-9X’s at 187 lb. 2 each = 55,108 lb. combat weight, divided by 840 ft wing area. Jackson, Paul, Fred Jane, C.G. Grey, John Taylor, and Mark Lambert, eds. Jane's All the World's Aircraft, 2004-2005. 95th ed. Surrey: Jane's Information Group, 2005; Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched and “F-22A 20mm Gatling Gun System.” General Dynamics Ordnance and Tactical Systems. Available at: http://www.gd-ots.com/armament_systems/ags_F-22A.html 95 Own calculation: 5,114.5 lb. fuel + 24,030 lb. empty weight + 150 rounds of 30mm GSh-301 ammunition at 430 lb. + two RVV-SD’s at 418 lb. each + four R-73EL’s at 231 lb. 2 each = 31,334.5 lb. combat weight, divided by 452 ft wing area. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter; Hewson, Robert, th ed. IHS Jane’s Weapons 2014-2015: Air-Launched. 60 Revised ed. London: Jane’s Information Group, 2014; and Easy Tartar, “MiG-29, Part Seven.” Fighter Tactics Academy. Last modified 2006. Available at: https://web.archive.org/web/20120728094408/http://www.sci.fi/~fta/MiG-29-2.htm 96 Own calculation: 10,361.5 lb. fuel + 36,111 lb. empty weight + 150 rounds of 30mm GSh-301 ammunition at 430 lb. + six RVV-SD’s at 418 lb. each + four R-73EL’s at 231 lb. 2 each = 50,334.5 lb. combat weight, divided by 668 ft wing area. Jackson, Paul, Fred Jane, C.G. Grey, John Taylor, and Mark Lambert, eds. Jane's All the World's Aircraft, 2004- 30 2005. 95th ed. Surrey: Jane's Information Group, 2005; Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched and Easy Tartar, “MiG-29, Part Seven.” Fighter Tactics Academy. Last modified 2006. Available at: https://web.archive.org/web/20120728094408/http://www.sci.fi/~fta/MiG-29-2.htm 97 Own calculation: 9,100 lb. fuel + 29,300 empty weight + 180 rounds of 25mm GAU-22/A ammunition at 198 lb. + four internal AIM-120C-5’s at 354 lb. each = 40,014 lb. th combat weight, divisor to 25,000 lbf. MIL thrust and 40,000 lbf. MAX thrust. Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched. 60 Revised ed. London: Jane’s Information Group, 2014. 98 Own calculation: 6,550 lb. fuel + 32,300 lb. empty weight + 1,017 lb. gun pod with 220 rounds of 25mm GAU-22/A ammunition + four internal AIM-120C-5’s at 354 lb. each = 41,283 lb. combat weight, divisor to 26,000 lbf. MIL thrust and 38,000 lbf. MAX thrust. Ibid. 99 Own calculation: 9,600 lb. fuel + 34,800 lb. empty weight + 1,017 lb. gun pod with 220 rounds of 25mm GAU-22/A ammunition + four internal AIM-120C-5’s at 354 lb. each = 46,833 lb. combat weight, divisor to 25,000 lbf. MIL thrust and 40,000 lbf. MAX thrust. Ibid. 100 Own calculation: 6,727.5 lb. fuel + 28,600 lb. empty weight +940 rounds of 20mm M61A1 ammunition at 528 lb. + four AIM-120C-5’s at 354 lb. each + four AIM-9X’s at 187 lb. each = 38,019.5 lb. combat weight, divisor to 29,180 lbf. MIL thrust and 47,540 lbf. MAX thrust. Ibid and McDonnell Douglas Corporation. “F-15 Armament Handbook.” Avialogs. Last modified October 1979. Available at: http://www.avialogs.com/en/aircraft/usa/mcdonnelldouglas/f-15eagle/f-15-armament-handbook.html 101 Own calculation: 11,670 lb. fuel + 33,946 lb. empty weight + 510 rounds of 20mm M61A1 ammunition at 281 lb. + four AIM-120C-5’s at 354 lb. each + four AIM-9X’s at 187 lb. each = 48,061 lb. combat weight, divisor to 35,600 lbf. MIL thrust and 58,200 lbf. MAX thrust. Ibid and “F-15E 20mm Gatling Gun.” General Dynamics Ordnance and Tactical Systems. Available at: http://www.gd-ots.com/armament_systems/ags_F-15E.html. 102 Own calculation: 3,558 lb. fuel + 19,643 lb. empty weight + 511 rounds of 20mm M61A1 ammunition at 325 lb. + four AIM-120C-5’s at 354 lb. each + two AIM-9X’s at 187 lb. each = 25,316 lb. combat weight, divisor to 17,800 lbf. MIL thrust and 29,100 lbf. MAX thrust (F100-PW-229). Ibid and “F-16 20mm Gun System.” General Dynamics Ordnance and Tactical Systems. Available at: http://www.gd-ots.com/armament_systems/ags_F-16.html. 103 Own calculation: 5,430 lb. fuel + 23,832 lb. empty weight + 578 rounds of 20mm M61A2 ammunition at 325 lb. + two AIM-9X’s at 187 lb. each + four AIM-120C-5’s at 354 lb. each = 31,377 lb. combat weight, divisor to 21,800 lbf. MIL thrust and 35,508 MAX thrust. Ibid and “F/A-18E/F 20mm Gatling Gun System.” General Dynamics Ordnance and Tactical Systems. Available at: http://www.gd-ots.com/armament_systems/ags_F-18.html. 104 Own calculation: 3,880 lb. fuel + 14,859 lb. empty weight + 300 rounds of 25mm GAU-12/A ammunition at 330 lb. + four AIM-9X’s at 187 lb. each + two AIM-120C-5’s at 354 lb. each = 20,525 lb. combat weight, divisor to 23,800 lbf. MIL thrust. Ibid and Friedman, Norman. The Naval Institute Guide to World Naval Weapons Systems, 1997-1998. Annapolis, Maryland: U.S. Naval Institute, 1997. 267. Available at: https://books.google.com/books?id=lDzknmTgDUC&pg=PA267&lpg=PA267&dq=Harrier+ventral+gun+pod&source=bl&ots=2tcQF1ueDp&sig=ZDn1xMpQWsSt845i0KC3EMIooyA&hl=en&sa=X&ei=A3EXVdjTH4ndsAT u8YHoBw&ved=0CDEQ6AEwBDgK#v=onepage&q=Harrier%20ventral%20gun%20pod&f=false 105 Own calculation: 5,350 lb. fuel + 23,611 lb. empty weight + 1,350 rounds of 30mm GAU-8/A ammunition at 2,025 lb. + two AIM-9M’s at 189 lb. each + two LAU-68/131’s at up to 317 lb. each + one AGM-65E at 630 lb. + one AGM-65G at 670 lb. + two GBU-38 Mk-82’s at 558 lb. each + one GBU-12 Mk-82 at 510 lb. + one Mk-82 LDGP at 500 lb. + one Sniper XR targeting pod at 446 lb. = 35,870 lb. combat weight, divisor to 18,130 lbf. Ibid and “30mm GAU-8/A Ammunition.” Orbital ATK. November 2002. Available at: https://www.orbitalatk.com/defense-systems/small-caliber-systems/30mm/docs/GAU-8A_Fact_Sheet.pdf, and “Sniper Advanced Targeting Pod.” Lockheed Martin Corporation. 2014. Available at: http://www.lockheedmartin.com/content/dam/lockheed/data/mfc/pc/sniper-pod/mfc-sniper-pc.pdf. 106 Own calculation: 9,000 lb. fuel + 43,340 lb. empty weight + 480 rounds of 20mm M61A2 ammunition at 270 lb. + six AIM-120C-5’s at 354 lb. each + two AIM-9X’s at 187 lb. each = 55,108 lb. combat weight, divisor to 70,000 lbf. MAX thrust. Ibid and “F-22A 20mm Gatling Gun System.” General Dynamics Ordnance and Tactical Systems. Available at: http://www.gd-ots.com/armament_systems/ags_F-22A.html 107 Own calculation: 5,114.5 lb. fuel + 24,030 lb. empty weight + 150 rounds of 30mm GSh-301 ammunition at 430 lb. + two RVV-SD’s at 418 lb. each + four R-73EL’s at 231 lb. each = 31,334.5 lb. combat weight, divisor to 22,220 lbf. MIL thrust and 36,600 lbf. MAX thrust. Ibid; https://web.archive.org/web/20120728094408/http://www.sci.fi/~fta/MiG29-2.htm; and http://web.archive.org/web/20140203073017/http://www.sci.fi/~fta/MiG-29-4.htm 31 108 Own calculation: 10,361.5 lb. fuel + 36,111 lb. empty weight + 150 rounds of 30mm GSh-301 ammunition at 430 lb. + six RVV-SD’s at 418 lb. each + four R-73EL’s at 231 lb. each = 50,334.5 lb. combat weight, divisor to 33,750 lbf. MIL thrust and 66,140 lbf. MAX thrust. Ibid and http://web.archive.org/web/20140203073017/http://www.sci.fi/~fta/MiG-29-4.htm 109 th Lockheed Martin. “F-35A – The World’s Only Multirole 5 Generation Fighter.” F-35 Lightning II, Lockheed Martin Corporation. Available at: https://www.f35.com/assets/uploads/downloads/13537/f35a_2.pdf. 110 Lockheed Martin. “F-35B – The World’s First Supersonic STOVL Aircraft.” F-35 Lightning II, Lockheed Martin Corporation. Available at: https://www.f35.com/assets/uploads/downloads/13538/f35b.pdf 111 Lockheed Martin. https://www.f35.com/assets/uploads/downloads/13539/f35c.pdf 112 F100-PW-220/229: 23,370 lbf. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 113 F100-PW-229: 29,100 lbf. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 114 For F100-PW-229. F110-GE-129 thrust: 29,588 lbf. Ibid. 115 F404-GE-402 EPE: 17,754 lbf uninstalled. United States General Accounting Office, Navy Aviation: F/A-18E/F will Provide Marginal Operational Improvement at High Cost . Steven F. Kuhta, Jerry W. Clark, William J. Gillies, Charles R. Climpson, Lawrence A. Dandridge and Lillian I. Slodkowski, contributors. GAO/NSIAD-96-98. (Washington, D.C.: U.S. General Accounting Office, 1996). 29. Available at: http://www.gao.gov/archive/1996/ns96098.pdf 116 F119: 35,000 lbf. “F-22 Raptor: Specifications.” Lockheed Martin Corporation. Available at: http://www.lockheedmartin.com/us/products/f22/f-22-specifications.html 117 RD-33: 18,300 lbf. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 118 AL-31F-M3: 33,070 lbf. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 119 th “F-35A – The World’s Only Multirole 5 Generation Fighter.” Lockheed Martin Corporation. 120 “F-35B – The World’s First Supersonic STOVL Aircraft.” Lockheed Martin Corporation. 121 Lockheed Martin. https://www.f35.com/assets/uploads/downloads/13539/f35c.pdf 122 F100-PW-220/229: 14,590 lbf. Wikipedia: http://en.wikipedia.org/wiki/McDonnell_Douglas_F-15_Eagle#Specifications_.28F-15C.29 123 F100-PW-229: 17,800 lbf. Serflek, Szabolcs. “Engines.” F-15E.info. Available at: http://www.f-15e.info/joomla/technology/engines/101-engines. 124 F100-PW-229. Ibid. F110-GE-129 MIL thrust: 17,155 lbf. “General Electric F110.” Scramble – The Aviation Magazine. Available at: http://wiki.scramble.nl/index.php/General_Electric_F110#F110-GE-129 125 F404-GE-402 EPE: 10,900 lbf. Chief of Naval Operations and Naval Air Systems Command. NATOPS Flight Manual – Navy Model F/A-18A/B/C/D 161353 and up aircraft. A1F18AC-NFM-000. (Patuxent River, M.D.: Commander, Naval Air Systems Command, 2008). 1-2-1. Available at: https://info.publicintelligence.net/F18-ABCD-000.pdf 126 F402-RR-408B Pegasus 11-61. . Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 127 TF34-GE-100: 9,065 lbf. Ibid 128 RD-33: 11,110 lbf. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 129 AL-35F: 16,875 lbf. “Directory: Military Aircraft – Sukhoi.” Flight International, May 24, 2004, 71. Available at: http://www.flightglobal.com/pdfarchive/view/2004/200409%20-%200832.html. 130 Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development th & Production. Edited by Paul Jackson., and Lockheed Martin. “F-35A – The World’s Only Multirole 5 Generation Fighter.” 131 Ibid and “F-35B – The World’s First Supersonic STOVL Aircraft.” Lockheed Martin Corporation. 132 Ibid and https://www.f35.com/assets/uploads/downloads/13539/f35c.pdf 133 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 134 Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 135 With F100-PW-229. With F110-GE-129: 19,880 lb. Ibid 32 136 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter Harrier II Plus upgrade. Ibid 138 Ibid 139 “F-22 Raptor: Specifications.” Lockheed Martin Corporation. 140 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter; and https://web.archive.org/web/20120728094408/http://www.sci.fi/~fta/MiG-29-2.htm 141 For Su-27. Su-27UB: 38,580 lb. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 142 th “F-35A – The World’s Only Multirole 5 Generation Fighter.” Lockheed Martin Corporation. 143 “F-35B – The World’s First Supersonic STOVL Aircraft.” Lockheed Martin Corporation. 144 Lockheed Martin: https://www.f35.com/assets/uploads/downloads/13539/f35c.pdf 145 68,000 lb with 9,750-lb. of fuel in two CFTs. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 146 Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 147 Ibid 148 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 149 Harrier II Plus upgrade. Ibid 150 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter. Manufacturer and Aviation Week cite 51,000 lb. “Program Dossier: A-10 Thunderbolt II.” Aviation Week, 2014. Available at: http://aviationweek.com/site-files/aviationweek.com/files/uploads/2014/10/asd_10_16_2014_dossier1.pdf 151 “F-22 Raptor: Specifications.” Lockheed Martin Corporation. 152 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 153 For Su-27SMK. Su-27UB: 73,854 lb. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 154 th Internal payload calculated as two AIM-120C-5s at 354 lb. each and two GBU-31(V)1/B Mk-84s at 2,040 lb. each. “F-35A – The World’s Only Multirole 5 Generation Fighter.” Lockheed Martin Corporation., https://www.f35.com/assets/uploads/downloads/13537/f35a_2.pdf, Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched. 155 Internal payload calculated as two AIM-120C-5s at 354 lb. each and two GBU-32(V)1/B Mk-83s at 993.4 lb. each; data from “F-35B – The World’s First Supersonic STOVL Aircraft.” Lockheed Martin Corporation. https://www.f35.com/assets/uploads/downloads/13538/f35b.pdf, Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched. 156 Internal payload calculated as two AIM-120C-5s at 354 lb. each and two GBU-31(V)1/B Mk-84s at 2,040 lb. each; data from https://www.f35.com/assets/uploads/downloads/13539/f35c.pdf, Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched. 157 Without CFTs. “McDonnell Douglas (now Boeing) F-15 Eagle Air Superiority Fighter.” Aerospaceweb.org. Available at: http://www.aerospaceweb.org/aircraft/fighter/f15/. 158 Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 159 With F100-PW-229. With F110-GE-129: 19,272 lb. Ibid. 160 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 161 Useful load (incl fuel, stores, weapons, ammunition, and water injection for engines. Max external stores payload with Pegasus 11-61 engine is 13,235 lb. Max external stores payload with Pegasus 11-21/Mk 105 engine throughout full maneuvering envelope is 10,800 lb. Ibid. 162 External load with full internal fuel is 12,086 lb. Ibid. 163 Own calculation: “The F-22 has four hardpoints on the wings, each rated to carry 2,270kg, which can carry AIM-120A AMRAAM or external fuel tanks. The Raptor has three internal weapon bays. The main weapons bay can carry six AMRAAM AIM-120C missiles or two AMRAAM and two 1,000lb GBU-32 joint direct attack munition (JDAM).” AirLaunched; internal payload calculated as two AIM-120C-5s at 354 lb. each, two GBU-31(V)1/B Mk-84s at 993.4 lb. each, and two AIM-9Xs at 187 lb. each. Hewson, Robert, ed. IHS Jane’s Weapons 2014-2015: Air-Launched. 164 Jackson, Paul, Fred Jane, C.G. Grey, John Taylor, and Mark Lambert, eds. Jane's All the World's Aircraft, 2004-2005. 95th ed. Surrey: Jane's Information Group, 2005. 165 Su-30MK. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 137 33 166 th “F-35A – The World’s Only Multirole 5 Generation Fighter.” Lockheed Martin Corporation. Lockheed Martin, F-35B Short Takeoff/Vertical Landing Variant. Available at: http://www.lockheedmartin.com/us/products/f35/f-35b-stovl-variant.html 168 Lockheed Martin, F-35c Carrier Variant. Available at: http://www.lockheedmartin.com/us/products/f35/f-35c-carrier-variant.html 169 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 170 13,511 lb. internal fuel plus 9,829 lb. fuel in CFTs. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 171 Ibid 172 “F/A-18 Hornet.” Global Security. Available at: http://www.globalsecurity.org/military/systems/aircraft/f-18-specs.htm 173 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 174 Ibid 175 “F-22 Raptor: Specifications.” Lockheed Martin Corporation. 176 7,619 lb. internal fuel plus 2,610 lb. fuel in nonconformal centerline tank. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter; and https://web.archive.org/web/20120612052436/http://www.sci.fi/~fta/MiG-29-1.htm 177 3,100 nm with CFTs. Ibid. 178 3,100 nm with CFTs. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 179 Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 180 Ibid. 181 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 182 Unrefueled with four 300-gal (US) external tanks dropped when empty. With tanks retained, ferry range is 1,638 nm. Ibid. 183 Ibid. 184 “F-22 Raptor.” U.S. Air Force. Available at: http://www.af.mil/AboutUs/FactSheets/Display/tabid/224/Article/104506/f-22-raptor.aspx 185 MiG-29S. Bushell, Susan, and David Willis, comps. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 186 Su-27SMK, tanks discarded when empty. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 187 th “F-35A – The World’s Only Multirole 5 Generation Fighter.” Lockheed Martin Corporation. 188 “F-35B – The World’s First Supersonic STOVL Aircraft.” Lockheed Martin Corporation. 189 Lockheed Martin, F-35C Carrier Variant. Available at: https://www.f35.com/assets/uploads/downloads/13539/f35c.pdf 190 Clean plus two AIM-9’s. “United State Navy Fact File – F/A-18 Hornet Strike Fighter.” United States Navy. Available at: http://www.navy.mil/navydata/fact_display.asp?cid=1100&tid=1200&ct=1 191 MiG-29S with centerline tank. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter . Jane's All the World's Aircraft. London, England: Janes Information Group, 2014. 192 Su-27SMK. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 193 Current estimate, inputs unspecified. Department of Defense, Selected Acquisition Report (SAR) – F-35 Joint Strike Fighter Aircraft (F-35). DD-A&T (Q&A)823-198. 2015. Available at: http://breakingdefense.com/wp-content/uploads/sites/3/2014/04/F-35-2013-SAR.pdf 194 Current estimate, inputs are full internal payload and “fuel to fly 456 nm.” Ibid. 195 Current estimate, inputs unspecified. Ibid. 196 F-15E. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 197 Inputs unspecified. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 167 34 “Armed with four AIM-120As, four 2000 lb Mk 84s and fitted with LANTIRN and three drop tanks, the F-15E will manage a combat radius better than 750 nm with a Hi-Lo-LoHi/100 nm dash mission profile.” Kopp, Carlo. “F-15E – Anatomy of Strike Fighter.” Air Power Australia. Last modified March 1985. Available at: http://www.ausairpower.net/TEF-15E-Strike-Eagle.html 198 Hi-lo-lo-hi profile, four AIM-9s, 450-gal (US) tanks, and two Mk-84s – 688 nm. Lockheed Martin Corporation. “Flight Manual – HAF Series Aircraft – F-16C/D Blocks 50 and 52+.” Last modified June 9, 1997. Figure A9-12, 252. Available at: https://info.publicintelligence.net/HAF-F16-Supplement.pdf Hi-lo-lo-hi profile, with CFTs, two 2000-lb bombs, two AIM-9s, and 1,040 gal (US) external fuel in retained drop tanks – 735 nm. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Pauk Jackson. Hi-lo-lo-hi profile, with CFTs, two 2,000-lb bombs, two AIM-9s, and 1,464 gal (US) external fuel in drop tanks (retained) – 845 nm. Ibid. Hi-hi-hi profile, four GBU-24s – 200 nm. Stanley, William, and Gary Liberson. “Measuring Effects of Payload and Radius Differences of Fighter Aircraft.” RAND. 1993. 41. Available at: http://www.rand.org/content/dam/rand/pubs/documented_briefings/2007/DB102.pdf CAP mission, hi-lo-lo-hi profile, two AIM-120s, two AIM-9s, and 1,040-gal (US) fuel in drop tanks (dropped when empty) – 950 nm. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Pauk Jackson. 199 Hi-lo-lo-hi interdiction: 290 nm. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter. Jane's All the World's Aircraft. London, England: Janes Information Group, 2014. Low-altitude mission profile with two 330-gal (US) external fuel tanks: 325 nm. United States General Accounting Office, Navy Aviation: F/A-18E/F will Provide Marginal Operational Improvement at High Cost . Steven F. Kuhta, Jerry W. Clark, William J. Gillies, Charles R. Climpson, Lawrence A. Dandridge and Lillian I. Slodkowski, contributors. 24. Fighter: 366 nm. Congressional Research Service, Military Aircraft, the F/A-18E/F Super Hornet Program. By Christopher Bolkcorn. RL30624. (Washington, D.C.: Congressional Research Service, April 22, 2004). Available at: http://www.globalsecurity.org/military/library/report/crs/crs_rl30624.pdf Low-altitude mission profile with two 480-gal (US) external fuel tanks: 393 nm. Pg 24: United States General Accounting Office, Navy Aviation: F/A-18E/F will Provide Marginal Operational Improvement at High Cost . Steven F. Kuhta, Jerry W. Clark, William J. Gillies, Charles R. Climpson, Lawrence A. Dandridge and Lillian I. Slodkowski, contributors. Attack: 415 nm. Pg. CRS-4, Congressional Research Service, Military Aircraft, the F/A-18E/F Super Hornet Program. By Christopher Bolkcorn Low-altitude mission profile with one centerline 330-gal (US) and two 480-gal (US) external fuel tanks: 437 nm. Ibid., 23. High-altitude mission profile with three 330-gal (US) external fuel tanks: 566 nm. Ibid., 26. High-altitude mission profile with two 480-gal (US) external fuel tanks: >600 nm. Ibid., 26. 200 STO, 12 Mk 82 Snakeye bombs, internal fuel, one-hour loiter – 90 nm. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter. Jane's All the World's Aircraft. London, England: Janes Information Group, 2014. Hi-lo-hi profile, STO, seven Mk 82 Snakeye bombs, two 300-gal (US) external fuel tanks, no loiter – 594 nm. Ibid. Deck launch intercept mission, two AIM-9’s, two external fuel tanks – 627 nm. Ibid. Harrier II Plus upgrade. Anti-shipping mission, STO, two Harpoons, two AIM-9s, two 300-gal (US) drop tanks – 609 nm. Ibid. Harrier II Plus upgrade. Sea surveillance, STO, incl 50nm dash at S/L with two AIM-9s, two 300-gal (US) drop tanks – 608 nm. Ibid. 201 CAS and escort, two-hour loiter, 20-min reserves – 250 nm. Reconnaissance – 400 nm. Ibid. Deep strike – 540 nm. Deep strike – 540 nm.Bushell, Susan, and David Willis, comps. Ibid. 202 With maximum internal fuel, other inputs unspecified – 459 nm. Jackson, Paul, Fred Jane, C.G. Grey, John Taylor, and Mark Lambert, eds. Jane's All the World's Aircraft, 20042005. 95th ed. Surrey: Jane's Information Group, 2005. With external tanks – 702 nm. Ibid. 203 Su-27SMK, inputs unspecified. Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. Jane's All the World's Aircraft. London, England: Janes Information Group, 2014. 204 Maximum positive acceleration due to rapid change of direction in flight path. Ibid. 35 205 9.0 below Mach 1.05, 7.0 above Mach 1.2. Goon, Peter and Kopp, Carlo. “APA Analysis & Assessment of JSF ORD Maneuverability KPIs,” Air Power Australia. Last modified 2012. Available at: http://www.ausairpower.net/jsf.html. 206 7.0 below Mach 1.05, 6.0 above Mach 1.2. Ibid. 207 7.5 below Mach 1.05, 6.5 above Mach 1.2. Ibid. 208 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter. Jane's All the World's Aircraft. London, England: Janes Information Group, 2014. 209 “The structure has been strengthened in several areas which allows the aircraft full 9G manoeuvring capability when loaded.” Kopp, Carlo. “F-15E – Anatomy of Strike Fighter.” Air Power Australia. Last modified March 1985. Available at: http://www.ausairpower.net/TE-F-15E-Strike-Eagle.html 210 Bushell, Susan, and David WIllis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. 211 Kopp, Carlo. “Flying the F/A-18F Super Hornet.” Air Power Australia. Last modified May/June, 2001. Available at: http://www.ausairpower.net/SuperBug.html 212 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter. Jane's All the World's Aircraft. London, England: Janes Information Group, 2014. 213 “Program Dossier: A-10 Thunderbolt II.” Aviation Week, 2014. 214 Jackson, Paul, Fred Jane, C.G. Grey, John Taylor, and Mark Lambert, eds. Jane's All the World's Aircraft, 2004-2005. 95th ed. Surrey: Jane's Information Group, 2005. 215 MiG-29S. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 216 Bushell, Susan, and David WIllis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Pauk Jackson. Jane's All the World's Aircraft. London, England: Janes Information Group, 2014. 217 th “F-35A – The World’s Only Multirole 5 Generation Fighter.” Lockheed Martin Corporation. 218 “F-35B – The World’s First Supersonic STOVL Aircraft.” Lockheed Martin Corporation. 219 Lockheed Martin, F-35C Carrier Variant. Available at: https://www.f35.com/assets/uploads/downloads/13539/f35c.pdf 220 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 221 Bushell, Susan, and David WIllis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Pauk Jackson. Jane's All the World's Aircraft. London, England: Janes Information Group, 2014. 222 Ibid. 223 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 224 Ibid. 225 Northrop Grumman Corporation. "A-10 Thunderbolt II Specifications." Northrop Grumman. Last modified 2015. Accessed 2015. Available at: http://www.northropgrumman.com/Capabilities/A10ThunderboltII/Pages/Specifications.aspx. Never-exceed speed: 450 kt. Cruising speed at 5,000 ft: 342 kt. Ibid. 226 Can supercruise at Mach 1.58. Jackson, Paul, Fred Jane, C.G. Grey, John Taylor, and Mark Lambert, eds. Jane's All the World's Aircraft, 2004-2005. 95th ed. Surrey: Jane's Information Group, 2005. 227 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 228 For Su-27SMK. For Su-27/UB: Mach 2.35. Bushell, Susan, and David WIllis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Pauk Jackson. Jane's All the World's Aircraft. London, England: Janes Information Group, 2014. 229 Measured at sea level. 230 “McDonnel Douglas (now Boeing) F-15 Eagle Air Superiority Fighter.” Aerospaceweb.org. Available at: http://www.aerospaceweb.org/aircraft/fighter/f15/. 231 “F-15 Strike Eagle.” Boeing. Available at: http://www.boeing.com/defense/f-15-strike-eagle/. 232 Pg 114. Winchester, Jim. Jet Fighters: Inside & Out. Weapons of War. New York, NY: The Rosen Publishing Group, 2011. 233 Kable Intelligence Limited. "CF-18 Hornet Multi-Role Fighter Aircraft, Canada." Airforce-technology.com. Last modified 2015. Accessed 2015. Available at: 36 http://www.airforce-technology.com/projects/boeingcf18hornetmult/. Kable Intelligence Limited. "AV-8B Harrier II Plus VSTOL Fighter and Attack Aircraft, United States of America." airforce-technology.com. Last modified 2015. Accessed 2015. Available at: http://www.airforce-technology.com/projects/harrier/. 235 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 236 Ibid. 237 Su-30MK. Bushell, Susan, and David WIllis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Pauk Jackson. Jane's All the World's Aircraft. London, England: Janes Information Group, 2014. 238 Usually height equivalent to air density at which maximum attainable rate of climb is 100 ft/min. Ibid. 239 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 240 “F-15E Strike Eagle.” United States Air Force. Last modified April 15, 2005. Available at: http://www.af.mil/AboutUs/FactSheets/Display/tabid/224/Article/104499/f-15estrike-eagle.aspx. 241 Bushell, Susan, and David WIllis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. Jane's All the World's Aircraft. London, England: Janes Information Group, 2014. 242 Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 243 "Historical Snapchat and Technical Specifications." Boeing. Last modified 2015. Accessed 2015. Available at: http://www.boeing.com/history/products/av-8-harrier-ii.page 244 Northrop Grumman Corporation. "A-10 Thunderbolt II Specifications." Northrop Grumman. Last modified 2015. Accessed 2015. Available at: http://www.northropgrumman.com/Capabilities/A10ThunderboltII/Pages/Specifications.aspx. 245 Jackson, Paul, Fred Jane, C.G. Grey, John Taylor, and Mark Lambert, eds. Jane's All the World's Aircraft, 2004-2005. 95th ed. Surrey: Jane's Information Group, 2005. 246 MiG-29S. Hunter, Jaime. IHS Jane's All the World's Aircraft 2014-2015: In Service. Edited by Jamie Hunter 247 Su-27SMK. Bushell, Susan, and David WIllis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Pauk Jackson. Jane's All the World's Aircraft. London, England: Janes Information Group, 2014. A Cenciotti, David. “ ‘A-10 will always be better than F-35 in close air support. In all the other missions the JSF wins’ F-35 Pilot Says.” The Aviationist. Last modified April 9, 2015. Available at: http://theaviationist.com/2015/04/09/f-35-never-as-a10-in-cas/ B Bushell, Susan, and David Willis, comps. IHS Jane's All the World's Aircraft 2014-2015: Development & Production. Edited by Paul Jackson. (London, England: Jane’s Information Group, 2014). C Hewson, Robert, ed. Jane’s Weapons: Air-Launched 2014-2015 (London, England: HIS Global, 2014). D“ Lightning Rod: F-35 Fighter Family Capabilities and Controversies." Defense Industry Daily. April 29, 2015. E Col. Charles Moore. "The Need for a Permanent Gun System On the F-35 Joint Strike Fighter." Air University, Air War College (April 2007): 12, 25. F Ibid., 25-26. G Majumdar, Dave. “Newest U.S. Stealth Fighter ’10 Years Behind’ Older Jets.” The Daily Beast. Last modified December 26, 2014. Available at: http://www.thedailybeast.com/articles/2014/12/26/newest-u-s-stealth-fighter-10-years-behind-older-jets.html H Jacques, David R. and Strouble, Dennis D. “A-10 Thunderbolt II (Warthog) Systems Engineering Case Study.” Air Force Center for Systems Engineering, Air Force Institute of Technology. Last modified 2010. Available at: http://www.lboro.ac.uk/media/wwwlboroacuk/content/systems-net/downloads/pdfs/A10%20Thunderbolt%20II%20(Warthog)%20SYSTEMS%20ENGINEERING%20CASE%20STUDY.pdf 234 37