The original bruce roberts sailboat and powerboat designs & boat plans company in australia. boatplans & designs for steel, aluminium & wood/epoxy in either multichine, radius chine or round bilge hull forms. thousands of designs marketed as roberts designs have been built in backyards and successfully sailed around the world. stockist of manecraft deep sea seals.. Many boat plans are offered online. at first everything is very confusing, then you start to get some idea of the different types of boats available. free is not always best or most economical in the end, do your homework. some great designs are available free though. my little apple pie dinghy was. Catamaran plans, sailing, power catamaran designs, trawler catamarans, aluminium or composite.