With its all-carbon hull and racing pedigree, the Seacart 30 is a high-performance boat. Multihulls World credits it as the only cruising-minded machine capable of delivering a leisure sailor into the high temple of speed.
Design and Construction
The main hull has a full-length chine just above the design waterline. Above it, the topsides flare outward to provide a little seating room below. The sectional shape has no deadrise at all.
The amas are splayed outward at about 4.5 degrees. Folded, the boat is compact enough to tow behind a small car. Its overall beam is 21 feet 10 inches.
The all-carbon hull has a deep, high-aspect-ratio centerboard in the main hull. Draft is 6 feet 7 inches with the board down and just 1 foot 2 inches with it raised. An escape hatch is fitted in the side of the main hull.
Displacement is about 2,050 pounds, while the all-up racing weight is listed as 2,046 pounds. Without crew, the D/L is 35.58.
Rig, Performance, and Handling
The carbon mast is a pivoting wing type. It aligns with the mainsail to create a seamless foil on either tack, and the wing mast alone contributes 53.8 square feet of area. Listed upwind sail area is 667 square feet, and the mainsail has three reefs.
Under a six-horsepower outboard, the Seacart 30 can make 9.5 knots. Its highest recorded speed so far is 27.4 knots, and the builder claims that a souped-up version is available for sailors who want still more speed.
This performance comes with demands on the crew. Multihulls World says the boat demands a progressive apprenticeship and good physical condition. The publication also notes that it can cover Quiberon to La Rochelle—or Antibes to Calvi—in a single afternoon.
Accommodations
The standard interior is deliberately austere, with an all-black, raw carbon-fiber finish. Berth flats are arranged fore and aft, and the layout provides a double berth on an inflatable mattress plus three single berths.
These Spartan accommodations steer the crew toward booking a hotel at stopovers rather than living aboard.
Verdict
The Seacart 30 is a one-design trimaran shaped for racing. It folds for trailering but carries a wing mast and deep centerboard, with a recorded top speed of 27.4 knots. This is a boat for fit, committed sailors rather than a cruising family, and its black carbon cabin is closer to a racing cell than a coastal home.
Pros
- Folds for towing behind a small car
- Board-up draft of just 1 foot 2 inches
- Pivoting carbon wing mast creates a seamless foil on either tack
- All-carbon hull
- Recorded top speed of 27.4 knots
Cons
- Spartan accommodations favor shore hotels over living aboard
- Demands a progressive apprenticeship and good physical condition
- Costs as much as a secondhand 40- to 45-foot cruising catamaran, according to Multihulls World







