The Formula 12 class is starting up internationally with some very keen amateur builders laminating away in their sheds. These are renders of one I designed the hull shape and basic
laminate for called the Tabby. It looks a little fat but it seems to go alright. One has been built by Ake in Finland (http://www.gust.ax/gallery/f12/2/) and he is very happy with it. There is talk of building a mould of it to produce a few solid FRP boats for local clubs and kids.