Design and Construction
The Seacart 30 is a trimaran with a main hull that carries a full-length chine just above the design waterline, where the topsides flare out to give a little seating room below, and the sectional shape shows no deadrise at all. The amas are splayed out at about 4.5 degrees, and the boat folds so compactly that you can tow it behind a small car. The all-carbon hull is paired with a deep, high aspect ratio centerboard in the main hull drawing 6 feet 7 inches when down, with board-up draft of just 1 foot 2 inches. An escape hatch sits in the side of the main hull. With a displacement of about 2,050 pounds and an all-up racing weight of 2,046 pounds, the D/L without crew is 35.58, and the beam stretches to 21 feet 10 inches.
Rig and Handling
The carbon mast is a pivoting wing type that aligns with the mainsail to form a seamless foil on either tack, and the wing mast alone accounts for 53.8 square feet of area. Upwind listed sail area is 667 square feet, and the mainsail carries three reefs. Under a six-horsepower outboard the boat can make 9.5 knots, while the top speed recorded so far is 27.4 knots. The builder claims a souped-up version exists for those needing more speed. Multihulls World notes the boat demands a progressive apprenticeship and good physical condition, and that it can run from Quiberon to La Rochelle or Antibes to Calvi in a single afternoon.
Accommodations
The standard boat comes with an all black, raw carbon fiber interior finish, deliberately austere. Berth flats sit fore and aft, and the layout includes a double berth on an inflatable mattress plus three additional single berths. The Spartan character of the accommodation steers the crew toward a hotel booking at stopovers rather than liveaboard comfort.
The Verdict
The Seacart 30 is a razor's-edge one-design trimaran that folds for trailering yet carries a wing mast and deep centerboard for genuine 27-knot potential. It is a boat for the fit and committed, not the cruising family, and its black carbon cabin is a racing cell rather than a coastal home.
Pros
- Folds and tows behind a small car with board-up draft of 1 foot 2 inches
- Pivoting wing carbon mast forms a seamless foil on either tack
- All-carbon hull with 27.4-knot recorded top speed
Cons
- Spartan accommodation oriented toward shore hotels, not living aboard
- Demands progressive apprenticeship and good physical condition
- Costs as much as a second-hand 40 to 45-foot cruising catamaran per Multihulls World







