Outboard runabouts, hydroplanes, and speedboat plans and kits for a variety of construction methods designed for the home boat builder.. Vintage plans reprints compiled from old technical magazines to build various boats from one sheet of plywood to a cabin cruiser. plus a few boating accessories plans.. Hull weight (approx.): 65 lbs. hull type: three-point hydroplane developed for sheet plywood planking. power: short shaft outboard motor to 20 hp. can the hull be.