RC Sailing Yachts

Sails model sail boats is governed by the same ISAF (International Sailing Federation) Racing Rules of Sailing that are used for full sized crewed sailing boats (with the inclusion of Appendix E, that introduces special rules to govern the radio-controlled sport). There are four international classes of radio sailing boats recognized by the ISAF-Radio Sailing Division: (from smallest to largest). International One Metre (IOM) The IOM class rules specify a monohull of maximum length 1000 mm, with maximum draught 420 mm. There is a minimum weight of 4000 g, which makes homebuilding of competitive boats possible. The IOM has three one-design rigs. To keep costs down, hull materials are restricted to either wood or glassfiber, while masts and booms are restricted to either aluminium or wood. International Marblehead (M) Maximum length: 1290 mm Maximum draught: ca 700 mm Up to six rigs are allowed, the tallest being about 2200 mm. International Ten Rater (10R) International A Class (A), the largest of the international radio sailing classes. The Bottle Boat is a low cost alternative to these classes. Largely constructed from waste items (bin bags for sails and soft drinks bottles for the body), it represents an environmentally friendly entry to the sport.