(click for a larger image)


Hull fineness ratios of 16:1 guarantee that this Crowther designed thoroughbred will MOVE! (Popular trailerable trimarans with fineness ratios of about 8:1 are considered fast)
Length Overall: 42'
Beam Overall: 25'
DWL: 41'
Draft, hull: 18"
Draft, rudders: 36"
Dry Weight: 6500 lbs.
Cruising/Racing Displacement: 7500lbs
Sail Area, Main & Jib: 940 sq. ft.
Power: 2 X 9.9 hp 4 cycle


The "OBI 42" will be a remarkable performer due to her lightweight all composite construction, fine hulls and sophisticated sailplan and rig. Twin daggerboards and spade rudders ensure that no similar sized cat will outpoint her to weather.


Below: Designed for two couples to cruise with room for privacy or to entertain - guests or envious crews from other boats. Two queen sized berths located amidships - where motion is best. Each has a private hanging locker and vanity. A large head forward in each hull gives each couple privacy. Aft in the port hull is a full galley and aft in the starboard hull has a complete navigation station with lots of room for use as an onboard office.

On Deck: A huge cockpit with perfect visibility forward for the helmsman is perfect for a race crew with access to the mast base from the cockpit - safety for racers and cruisers. Cruising with all your friends and loads of "water toys" or just relax on the large tramps.