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. Click the picture to get to the boat's page
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