SeaCart 30
- Brand:
- SeaCart
- Designed by:
- Marc Lombard Architecture Navale
- Yard(s):
- Marström Composite
- Description:
The SeaCart 30 is a carbon trimaran designed by Marc Lombard for one-design class racing, and is intended to reach speeds of 30 knots and more. The current [Oct. 2007] speed record on the boat is 27.4 knots, held by Patrice Vivient in France.
The typical racing crew consists of 4–5 sailors, but a good reefing system and hard wind sails enable handling in tough weather with a crew of 2.
The main hull cabin seating for 6, a comfortable double berth and two bunks in the bow area. A small demountable galley can be installed for races or weekend cruising.
The trimaran is trailerable, and the low weight (under a tonne) allows towing with a medium-sized car.
CE category B applies if a bilge pump system that operates from the cockpit is installed, as well as life lines and stanchions at the stern, one on the main hull and one on each rear beam.
- Type:
- Racer
- Multihull type:
- Trimaran
- Construction:
All the SeaCart parts are made in pre-preg T 600 carbon fibre cured at 125 degrees at 3–8 bars of pressure in the Autoclave. 15 mm Nomex sandwich is used in the hulls.
All parts including the hulls are made in a seamless one shot process, which ensures perfect leading edges and saves considerable weight by omitting glue in joints between hull halves.
- Sails and rigging:
- Mast:
251 x 113 mm wing section with single carbon airfoil spreaders and dyform stays. Carbon cured in 125 degrees in autoclave. Sails:
Upwind: 62 sqm (main 41 sqm and jib 19 sqm).
Downwind: 139 sqm (main, jib, gennaker 77 sqm)
Optional: ORC jib (7.4 sqm), code 0 (37 sqm), Code A0 (55 sqm upwind genoa) LOA increases to 11.0 m with bowsprit
- Sails and rigging images:
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- Deck layout and gear:
- 2 Harken B 40 Q winches and winch handles on cabin roof
- 2 Spinlock XTS06082 double clutches for the halyards led to the cockpit area
- 8 mm colour-coded dyneema halyards for main (2:1), jib and gennaker
- 8 mm high quality polyester for main, jib and gennaker sheets
- Spinlock XAS04082 clutch for jib reef and jib Cunningham. Self-tacking jib with 8:1 purchase with cleats on the forward beam, 2:1 traveller control
- Semi-circular mainsheet track in Carbon with Carbon traveller car and side controls with 1:6 purchase. Marstrom control blocks with low friction needle bearings
- Carbon boom with internal Spinlock XAS04083 for reefs and outhaul. 8 mm high quality colour coded Polyester rope for 2 reefs and outhaul. Internal fine tune system 1:4 purchase and ratchet coupled to external gross tune of 7:1 giving a total of 28:1 for the mainsheet. Fine tune cleated on a Harken 141 under the boom, gross tune on a 75 mm Ratchamatic triple on the aft beam
- Harken endless gennaker furler with spliced control line
- Twin aft beam Harken 1549 and 1571 ratchet blocks for gennaker sheet.
- Deck layout images:
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- Keels, boards and rudders:
- Carbon rudders and rudderstocks with titanium rudder shafts mounted on the amas
- Carbon tillerbar and telescopic carbon tiller extension
- The rudder profile is NACA 63-010
- The rudders on each ama can be raised for access to shallow waters
- Carbon centreboard with NACA 65-011 section
- Accommodation:
One large double in the stern and two bunks in the bow sleep 4 - another 2 possible bunks in the saloon area.
As a standard, the SeaCart 30 is delivered with a raw carbon fibre interior with simple seats and a bunk plane forward and aft. Painting, cushions, toilet, galley etc. are optional. A space for toilet and battery is provided.
- Accommodation images:
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- Systems - Power, Navigation:
- Battery rack and electrical system is available.
- Performance and handling:
- The SeaCart 30 achieves outstanding performance inshore or offshore.
Trailering
The SeaCart 30 can be demounted within two hours by a crew of four. This is facilitated by the beam design where the beams stay attached to the amas (side hulls) with the trampolines permanently lashed on during the race season. The weight of the beam/float/trampoline assembly is around 120 kg which means that it can be conveniently carried by the crew as well as handled by the optional special trolleys.
- Performance diagrams:
-
- LOA (length overall):
- 9.15 m (30 ft)
- LWL (length at waterline):
- 9 m (29 ft 6 in)
- Beam:
- 6.65 m (21 ft 10 in)
- Beam when folded:
- 2.45 m (8 ft)
- Draft minimum:
- 0.35 m (1 ft 2 in)
- Draft maximum (e.g. boards down):
- 2 m (6 ft 7 in)
- Windward sail area:
- 64.0 m² (689 ft²)
- Mainsail area:
- 45.0 m² (484 ft²)
- Wing mast area:
- 5.0 m² (54 ft²)
- Jib or Solent area:
- 19.0 m² (205 ft²)
- Staysail:
- 7.0 m² (75 ft²)
- Genoa area:
- 35.0 m² (377 ft²)
- Reacher, screacher, gennaker or code 0 area:
- 77.0 m² (829 ft²)
- Mast height above deck:
- 15.2 m (49 ft 10 in)
- Mast height above water:
- 17 m (55 ft 9 in)
- Daggerboard / centreboard:
- 1
- Displacement, lightship (empty):
- 850 kg (0.84 tons)
- Displacement at design waterline (DWL):
- 950 kg (0.93 tons)
- Displacement, maximum:
- 1250 kg (1.23 tons)
- Payload:
- 200 kg (0.2 tons)
- Number of berths:
- 4 - 6
- Cabin headroom:
- 1.82 m (6 ft)
- Outboard engines:
- 1
- Typical total engine HP:
- 8
- Fuel type:
- Petrol
- Fuel capacity:
- 10 lt (3 US gallons)
- Trailerable:
- Yes: requires demounting
- Weight with trailer (typical):
- 1400 kg (1.38 tons)
- Towing width:
- 2.45 m (8 ft)
- European RCD design category:
- B
- First introduced:
- 2005
- In production:
- Yes
- Number built:
- 15 [Nov. 2007]
- New price from:
- €152400 (approx: £112802 Sterling / $223773 US / $254418 AUS)*
- More images:
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- Degree of customisation:
- Several options
- Reviews:
- Designer's/manufacturer's website:
- Used boats for sale:
- 2 boats of this brand currently available!
- Boat agents & brokers:
