Custom Shuttleworth 39' Trimaran

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Inventory & Remarks

Detail photos of interior, deck, rigging etc will be added soon (early June 2025).

Launched 2018

Length 11.9m

Beam 10m

Draft 1m/3m boards up/down

Owner’s Comments

Designed by Shuttleworth (design was brand new not “old stock” modernised and updated. The idea was to achieve a power to weight ratio proportional to a 40’ version of the Seacart 30’. Floats ended up being 315% buoyancy compared to 350% for the Seacart floats but Shuttleworth calculated the reduction in air draft and wetted SA in light airs and downwind would improve performance. 

The VPP predicted that Morpheus would be 10% faster than the Seacart on all points of sail but we actually ended up with a boat that goes upwind at a max speed of 16.5 knots, tacking through 90 degrees (with the Main hull just clear of the water), under complete control.

Initially we had problems with rudder cavitation but after bringing Hugh Welbourn in and having him design a bespoke set of foils for her, we then had total control right up to 29 knots boatspeed downwind.

Notable racing history

Line honours 2022 RBI (Round Britain and Ireland Race), overall and every leg.

1st multihull under 50’ 2021 Fastnet

1st multihull under 50’ to finish 2023 Fastnet (50 knot storm for 10 hours on day 1, (half the fleet retired).

Numerous line honours wins in RORC/RWYC in coastal and offshore races including 1st line honours and handicap in recent St Peter Port to Plymouth Fastnet qualifier race.

Construction

Hulls built by Pro-Composites Asia.

Beams and finishing work by Pro-Composites.

Hulls and beams: 100% carbon fibre.

Carbon bowsprit 2m.

Carbon daggerboards 3.5M deep.

Carbon bespoke rudders and stocks with Jefa roller bearings.

Carbon tillers mounted half way along both port and starboard aft beams.

Integral helmsman seats (swivel).

Weight empty 2500kg.

Weight race ready 3000kg.

Rig and Sails

Mast: 18.6m (single spreader carbon rotating wing 6sqm) by New Zealand Rigging.

Boom: 4.5m carbon.

Sail area. 110sqm upwind:

Mainsail 70sqm. 2025 Highwater Sails.

J0  85sqm North Sails.

J1 65 sqm. 2022 by Highwater Sails.

J2 40 sqm. 2023 by Highwater Sails.

J3 20sqm. 2018 Evolution Sails.

Asymmetric Spinnaker 180sqm. North Sails.

Future Fibres forestay.

Marlow D12 Max shrouds.

Diamonds are 8mm rod.

All running rigging Dyneema.

Karver mainsail reef hooks x3.

Karver furlers for J0, J1 ,J2, J3.

Electronics and Electrics

Raymarine 12” plotter in the cockpit, MFDs x4 (depth/speed/etc).

VHF Raymarine.

AIS class B transponder.

Autopilot Raymarine.

LED lighting interior and nav lights.

300W Solbian Italian solar panels.

Victron charge controllers.

Charging 20W alternator on the Tohatsu outboard.

120ah lithium 12v battery (2025).

Switch panel with 8 switches (circuit breakers) and 2x 12V lighter socket plugs.

4G antenna on mast top gives 30 miles offshore wifi.

Sailmon system integrates with Raymarine intruments and IPAD.

Wifi with own SIM card.

Deck Gear

Pontos 40 working winches x2.

Pontos 46 backstay/screecher winches.

Pontos 28 winch for the main traveller.

3D eye system for adjusting foresail leads.

XX clutches for screecher/asymm tack lines lead out to the end of the sprit.

Coussin Trestec / Ronstan Constrictor clutches for halyards.

Pontos 40 winch on mast.

Engine

20HP steerable Tohatsu outboard (connected to the tillers and allows boat to turn in her own length under power).

Interior

Small double V berth fwd with Lavac toilet.

Wet locker under main beam.

Saloon/Main cabin : 2 tilting pipe cots.

Aft cabin: generous double with limited head room due to cockpit floor above (40cm).

Jet boil stove + separate camping stove for larger saucepan.

Fresh water tank with hand operated pump.