Hull type: flat bottom, developed for sheet plywood with rounded stern. for standard sized plywood assembled by the stitch and glue construction method. power: outboard motors to 15 hp. trailer: designed for use with glen-l series 1200/1800 boat trailer plans. a palatial, 50 mph super yacht with. Spira international wooden boat plans. following are the stock plans available for the various types of boats, separated into the different categories.. A smaller 13′ version of the chesapeake crab skiff. little crab is a smaller version of the chesapeake crab skiff i drew several years ago. bill page, boatbuilder and traditional marine hardware tycoon, asked for a 14′ version to use as a tender for his new power cruiser..