Cr-914 sailboats, this one design is one of the hottest classes in the american model yachting association (amya) along with the rc star, ec12 meter, santa barbara. International one meter – developmental sanctioned in 1998. the international one metre is the fastest growing class in the world. the rules in this class are. Rc sailboats – an overview of radio controlled sail boats and a brief explanation of scale model sailboats, semi scale rc sport, and rc racing sailing yachts. kits.