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Press Release

The “ Whitmarsh 11m ” by Whitmarsh High Performance Ribs in the UK will be unveiled during the Antibes Boat & Yacht Show (Dates), Cannes International Boat and

Yacht Show (10 -15 September 2008), Monaco Yacht Show (24-27 September 2008) and Genoa International Boat Show (4th to 12th October).

After 30 years of product development, manufacture and testing in countless offshore competitions & races, the team behind Whitmarsh High Performance Ribs have now moved into production. The first Luxury Offshore Rib has been created in the relentless pursuit of perfection that underpins Whitmarsh Ribs working practice, and now seriesproduction has started.

The Whitmarsh 11m is the result of an exhaustive creative process to produce the most refined, Luxury Offshore Rib and Whitmarsh makes absolutely no compromise, from design, naval architecture, hull design, and sound engineering.

The Whitmarsh 11m is no ordinary Rib – simplified in concept, she is probably the most driver-orientated vehicle on the water; easy to manoeuvre, easy to understand and with familiar controls that allow any car driver to experience + 65knts on the water.

The Whitmarsh 11m is capable of covering long distances with her range of over 300 nautical miles , and her specially designed and proven hull allow her to handle seas no other boat in her class can consider.

Unsurprisingly, it has been difficult to keep the Whitmarsh 11m a secret. With no exposure and only word of mouth there is already a waiting list. Whitmarsh have also started production on their 12.5m

running twin VW Marine inboard diesels combined with twin Arneson Surface drive systems, capable of propelling the 12.5m to beyond 85 knots .

Design & Engineering:

Styling is by ex-British Offshore Racing Champion James Whitmarsh , Winner of the

Transworld Wirral 1986

Cowes / Torquay 1986

Guernsey International 1987

Camden trophy 1987

The Whitmarsh 11m is beautifully proportioned, her conception is about power, beauty and performance. The boat’s blistering performance and speeds in excess of

+ 65 knots are achieved through the hull design of renowned British offshore racing’s ‘ James


’ and coupled with

Mercury Verados latest supercharged 4 stroke Marine

Outboard engines, chosen for their power, fuel-efficiency and cutting edge performance

Whitmarsh High Performance Ribs Ltd . 18 Barnowl Way . Stoke . Gilford . Bristol . BS34 8RZ . UK

T : +33 (0)6 20 78 52 23 . E :

in speed and acceleration as well as for their unrivalled manoevring abilities. These engines offer the perfect combination of power with outstanding combustion efficiency.

The hull is the result of an uncompromising brief for not only stiffness at speed but also afford the Whitmarsh 11m her extraordinary sea-keeping abilities, development straight from their extensive racing pedigree. Whitmarsh use hand laid GRP with high density

Divinycell re-enforcement to give the ultimate performance whilst saving weight and eliminating water ingress and deterioration that is common with Plywood cores.

The boat is fully equipped with Recarro Racing Pilot Seats, 6” Bobs Extreme Series

Transom Jack Plates, Intergral 4 Point Lifting System + slings, Stainless Steel

Performance Propellor, Raymarines latest E80 chartplotter/AIS/VHF, Fusion ipod

Docking Station Entertainment System,


Composite Teak Decking. (Are we supplying an all inclusive boat or are theses all extras?)

Remember this is a full option boat – everything is included, but if there is a particular request Whitmarsh is prepared to consider it.

The Whitmarsh Rib was conceived as the ‘ Ultimate Luxury Offshore Rib

’, ideal as a

Long Range Day Cruiser , Yacht Regatta Support Boat or ‘ tender too ’ any Super

Yacht . The stiffness of the Divinycell reinforced hull and the deep forward V give the famous “

Whitmarsh Ribs Velvet Ride

” which is simply unheard of on other Boats.


ALL requests for editorial and publication (with or without sea-trial) will be gratefully received by Whitmarsh Ribs concerning the “ Whitmarsh

” model, but any subsequent publication is subject to prior approval by Whitmarsh High Performance Ribs Ltd .

Please visit the press section on our website for press packs and collateral.


Whitmarsh High Performance Ribs Ltd


Whitmarsh High Performance Ribs Ltd

18 Barnowl Way

Stoke Gilford

Le Commodore

Marina Baie Des Anges

Villeneuve Loubet 06270


Bristol BS34 8RZ

United Kingdom

Whitmarsh High Performance Ribs Ltd . 18 Barnowl Way . Stoke . Gilford . Bristol . BS34 8RZ . UK

T : +33 (0)6 20 78 52 23 . E :


Principal Characteristics:

Length Overall: 9 / 11 / 12.5m

Beam (maximum): 2m

Height Above Waterline: 163cm

Draft (incl props): 42cm

Fuel Capacity: 450lt

Fresh Water Capacity: 25lt

Passengers: 6

Construction: GRP / Divinycell

Hull Design: James Whitmarsh

Design & Construction: James Whitmarsh

Builder: Whitmarsh Ribs

Whitmarsh High Performance Ribs Ltd . 18 Barnowl Way . Stoke . Gilford . Bristol . BS34 8RZ . UK

T : +33 (0)6 20 78 52 23 . E :





Length Overall



Hull Material

Whitmarsh Ribs

James Whitmarsh

Whitmarsh High Performance Ribs

9m / 11m / 12.5m



Divyncell GRP

Fuel Capacity


400 Litres

Mercury Verado 4 Stroke 275/300/350 hp

Maximum Speed 70 knts +

Base Price On Enquiry – Click Here

Events & News

The Whitmarsh 11m Rib will be making its debut at this years Cannes Film Festival and

Monaco Grand Prix. To reserve your Sea Trial ‘Click Here’

Whitmarsh High Performance Ribs Ltd . 18 Barnowl Way . Stoke . Gilford . Bristol . BS34 8RZ . UK

T : +33 (0)6 20 78 52 23 . E :

Download Specifications Brochure

Technical Specification for Whitmarsh High Performance Ribs:

It is our aim to use quality proven tried and tested equipment and rigging methods to provide the most reliable and durable product possible.

Hull Construction

This will be hand laid GRP using Iosthalic resin for maximum Osmosis protection. Eglass CSM/Bi-axial cloth lay up with high density Divinycell foam hull reenforcement to give the ultimate performance whilst saving weight and eliminating water ingress and deterioration that is common with Plywood cores.

Tube Colour to Client Requirements

580mm tapered tube with seven chamber design and pressure relief valves as standard for maximum safety. Manufactured with


Orca Hypalon 1200 gsm standard finish or 1500gsm Fabric Impression (matt finish) material .

Composite Teak for Maximum Durability and Practicality

Using the ‘ Esthec’

composite decking system depending on colour selected.

Manufactured from a rigid vinyl composite that looks and feels like natural wood but solves a lot of the problems associated with a traditional wooden deck as well as being eco friendly.

Integral 4 Point Lifting System Built in to the Hull with Slings Supplied

This system simplifies lifting and avoids chaffing on the tubes when using conventional slings. The stern lifting points will be


lifting eyes bolted through the transom. The forward points are 90 degree plates bolted through both the longitudinal stringers and the thwart ships bulkhead with 16mm thread in eyes for maximum strength.

The use of


fiber for the slings provides many important advantages. This lightweight fiber enables the manufacturing of slings that are lower in weight by a factor of eight compared to similar steel wire-based equipment. Lighter weight makes handling the slings easier and allows them to be stowed onboard without taking up space and carrying un-wanted weight.

450 Litre Aluminium Powder Coated Fuel Tank

This will be a rolled edge construction for maximum safety and strength.

Manufactured by ‘the tank company’ in Poole, they are a major OEM supplier to both the marine and specialist vehicle manufacturing sectors as well as the petro-chemical and gen-set industries. Waterjet cutting and CNC folding ensures consistency of measurements for small production runs, and all welders are coded. Every tank is individually numbered and pressure tested and carries a two year manufacturer’s guarantee.

Whitmarsh High Performance Ribs Ltd . 18 Barnowl Way . Stoke . Gilford . Bristol . BS34 8RZ . UK

T : +33 (0)6 20 78 52 23 . E :

25 Litre Fresh Water Tank/Aft Deck Shower .

This will an integral GRP tank located in the bow section under the foredeck moulding.

Sea Star Hydraulic Steering.

This is a low friction hydraulic steering system for outboard engines up to 350hp, it has 4.25 turns from lock to-lock and the factory swaged hoses are

Kevlar® reinforced.


Pro is suitable for use with jack plates and performance props.

 X1 6” Bob’s machine shop extreme series transom jack plate fitted as standard

This gives improved speed and performance capability and allows better trim options for all conditions.

Stainless steel radar arch

Will be manufactured with 50mm 316 stainless tube.

The Navigation lights will be mounted on the arch at regulation height along with the

Plotter/VHF antennas.

Stainless Steel Stem Tow Point

This will be a ‘V’ shaped plate made to fit the hull form to enable the boat to be towed behind the main vessel. There will be an eyelet on either side of the hull to allow the safest and most stable tow.

Please note this is only for use in moderate sea conditions only.

Stainless Steel Boarding Support/Handrail

This will be a support pole to be fitted in to a drop in socket at the forward end of the aft seating arrangement on both sides of the boat to ensure guests can board the boat with maximum safety.

Shore Power/ Battery Charger


marine shore socket and plug system with


marine battery charger.

Electrical Install / Switching



protection breakers with


rocker switches will be used for the consoles. These have proven to be the most reliable for this type of application and are the easiest to repair, replace or by-pass should an electrical failure occur.

Pumps and Drainage

There will be x2


2000 gph bilge pumps fitted. The first will be fitted in the aft bilge. The second will be fitted in a sump tank just below floor level behind the back seat to catch water from the cockpit sole. The sump will have a two and a half inch overflow (with non return valve) directed overboard through the transom as a back up/emergency system. All cockpit lockers will have a GRP wax gel finish and will have limber holes to allow them to drain aft.

Whitmarsh High Performance Ribs Ltd . 18 Barnowl Way . Stoke . Gilford . Bristol . BS34 8RZ . UK

T : +33 (0)6 20 78 52 23 . E :

 ‘Lopolight’ LED Navigation/Anchor lights

These are rugged Stainless Steel LED lights, they have a low consumption rate and are submersible and vibration proof and carry a 5 year guarantee.

LED Cockpit Lighting

8 Low level flush mounted LED lights available in White, Red or Blue with Stainless

Steel bezels.

Fusion Stereo/IPOD Docking Station with x4 Cockpit Speakers

This unit features an internal iPod docking port. Your iPod sits inside a waterproof drawer in the stereo unit to protect it from the harsh marine elements. It also features true iPod integration, enabling complete control and navigation of functions from the stereo unit menu. Complies with IP65 waterproof and dust standards.

Raymarine E80 Chartplotter, with AIS 250, Raymarine 49E VHF


All cockpit upholstery will be finished in a high quality White Vinyl material with piping colour coded to match the boat colour scheme. The helm seats will be two


style race seats in matching fabric.

Lightweight Mesh Style Bimini

This will be a lightweight stow able mesh fabric Bimini to be fitted between the

Radar arch and drop in support poles on the drivers console to provide protection from the sun when the boat is at rest.

Lightweight Overall Boat Cover

This would be manufactured in


lightweight fabric and colour coded to the boat.

 15ltr ‘Igloo’ Cool Box

This will be fitted inside the aft storage locker.

Custom Vinyl Wrap Engine Cowling with MY Natori Logo

Stainless Steel Performance Propeller

Optional Extras

Jet or conventional bow thrusters system

 Engine cowling covers to match overall boat cover POA

Swim ladder POA

Passerelle POA

Underwater lights





Whitmarsh High Performance Ribs Ltd . 18 Barnowl Way . Stoke . Gilford . Bristol . BS34 8RZ . UK

T : +33 (0)6 20 78 52 23 . E :


Yamaha outboard (for pleasure use)

Hull and sub mouldings


Upholstery and Stainless Steel


Contact Us

James Whitmarsh


Mobile: +33 (0)6 20 78 52 23



Kurt Deithrich


Mobile: +33 (0)6 23 64 23 45



Enquiry Form:








Mobile No





Facebook Link???

5 Years

1 Year

5 Years on Hypalon Fabric

1 Year on the manufacture

1 Year

1 Year

Whitmarsh High Performance Ribs Ltd . 18 Barnowl Way . Stoke . Gilford . Bristol . BS34 8RZ . UK

T : +33 (0)6 20 78 52 23 . E :