Power boats are typically Fast electric or internal combustion, ( ignition engine or glow plug R/C engine based) and some are steam powered (conventional type, and also flash steam). Hull: Mono, Hydro, Cat, Outrigger and Eco (self righting jelly mold shape)Ĭlasses are further divided by battery type and count, Engine CC, Deep V Mono, Stepped Mono, sub surface and surface piercing prop's etc.

Race: Circuit and Straight line is established at National and International levelsĮngine: Electric, Glow Plug, Flash Steam and Gas (petrol) They are mainly organised by engine type and hull type. There are dozens of types and classes of race boats. Largely constructed from waste items ( bin bags for sails and soft drink bottles for the body), it represents an environmentally friendly entry to the sport. The Bottle Boat is a low-cost alternative to these classes. Other classes of international significance include the CR-914 the RC Laser, the Micro Magic, and the RG-65. International A Class (A), the largest of the international radio sailing classes.Up to six rigs are allowed, the tallest being about 2200 mm. (International One Metre Class Association)Ī Marblehead has a maximum length of 1290 mm and a maximum draught of ca 700 mm, but no minimum displacement. To keep costs down, hull materials are restricted to either wood or glassfiber, while masts and booms are restricted to either aluminium or wood. There is a minimum weight of 4000 g, which makes homebuilding of competitive boats possible. The IOM class rules specify a monohull of maximum length 1000 mm, with maximum draught 420 mm. There are four international classes of radio sailing boats recognized by the International Radio Sailing Association (IRSA) who are recoignised by the International Sailing Federation are: Vane controlled boats sail under their own rules. The racing of radio-controlled yacht racing is governed by the same 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).

One servo controls the position of both main and jib sails together (allowing the sails to be trimmed), the other the position of the rudder (allowing the boat to be steered). Signals from the radio transmitter are interpreted by the radio receiver and translated into instructions to change the position of the servos. On the boat, the radio receiver is connected to two battery-powered electric motors or servos. By changing the position of the two joysticks on the transmitter signals are sent over two separate channels on a single radio frequency (assigned to the individual boat/operator). Model sailboats are typically controlled via a multi-channel radio transmitter in the hands of the operator with a corresponding receiver in the boat. Sailboats use the power of the wind acting on sails to propel the boat.

Remote control boat