Boat plans, bruce roberts official web site for custom boat plans and boat kits for steel boats or aluminum boat designs, sail boat boat plans, sailing boat plans, fiberglass sail boat plans, wood boat plans, steel sail boat plans, cut to size boat kits, part built boats or complete boats. bruce roberts yacht designs offer boat building project management arrangements for boats built overseas. Specmar catamaran hulls are either symmetrical or asymmetrical in design. a symmetrical hull consists of two basic v-bottom hull structures. asymmetrical hulls are basically a monohaul craft split down the middle and spread apart. a foil assisted cat has a lifting foil between the two hulls to increase performance. advantages of a catamaran is high initial stability.. Catamaran designs were not initially considered as an option for farrier marine, inc, but a number of farrier trimaran owners considering moving up to large catamarans have commented that the boats in general just did not perform well, or the building plans available were not very comprehensive..
