You can take five of your friends for an exciting daysail or sail with one crew on a longer adventure in this trailerable trimaran sloop. The generous cockpit of the Constant Camber 30 is arranged midships, with small cabins forward and aft. Construction features simple wood-epoxy Constant Camber panel hull sides with a minimum of other wooden parts. This boat folds to 9’6” wide for dry sailing from a boat storage yard. Well-detailed plans and full sized patterns make this design an easy project for amateur construction.Pictures taken by John Marples.


Length Overall 30'0″
Waterline Length 28′0″
Beam Overall 20′0″
Beam of Main Hull 4′0″
Draft, Hull Only 1′7″
Draft, Board Down 4′7″
Displacement, Full Load 2600 lbs
Displacement, Dry 1800 lbs
Payload 800 lbs.
Sail Area, 100% fΔ 360 sq ft
Sail Area, Max 435 sq ft
Mast Length 35′0″
Bridge Clearance 40′
Engine Power 10-hp OB
Fuel Tankage 3.5 gal
Water Tankage N/A
Speed under Power 7 knots
Number of Crew 1 to 8
Berths, Min/Max 1-2
Headroom in Cabin 4′4″
Design Fee to Build One Boat $900