Seaclipper 20 sailing in St. Augustine, Florida

The Seaclipper 20 is suitable as a family daysailer or an expedition trimaran. Mike O’Brien reviewed the design in WoodenBoat No. 217 (Nov/Dec 2010), and a class at the WoodenBoat School in the summer of 2011 built one in nine days (see WoodenBoat No. 227 (July/August 2012). The central cockpit has enough room to seat four people. The deck around the cockpit is 7-feet square, big enough to hold an inexpensive family-sized tent. With storage compartments fore and aft, two people can spend several days camp-cruising. The goal of this design is to get you on the water quickly and economically. Construction is simple with ¼” plywood construction and epoxy adhesives. Flat beam, swing-wind akas are used to reduce the 14’ beam to trailering width. They can also be pivoted in the water allowing narrow marina slip berthing with the mast up. You can find an inexpensive rig for this boat online. A used Hobie Cat 16, or any other equivalent beach cat rigging will work just fine. Expect to spend about 5 to 7 months of part-time effort to complete. Picture of MICE NUTS under sail by owner Val Cox.




Length Overall 20'0″
Waterline Length 18′9″
Beam Overall 14′0″
Beam of Main Hull 2′5″
Draft, Hull Only 13″
Draft, Board Down 3′5″
Displacement, Full Load 1600 lbs
Displacement, Dry 800 lbs
Payload 800 lbs.
Sail Area, Main 150 sq ft
Sail Area, Main and genoa 202 sq ft
Mast Length 27′3″
Bridge Clearance 23′
Engine Power 5-hp OB
Fuel Tankage 3.5 gal
Water Tankage N/A
Speed under Power 6 knots
Number of Crew 2 to 6
Berths, Min/Max 2
Headroom in Cabin N/A