Chas, the pistol grip radios are really NOT the thing for sailing because of the trigger control. In sailing, the idea is to move the controls as little as possible and as seldom as possible. This is almost impossible to do with the trigger control. Your finger can't very well move it with great precision and then HOLD it exactly there. I'm not saying a guy can't sail a boat with one.......but it would sure be my last choice.

Futaba makes a 2 channel radio under $100 WITH a sail servo included. Only thing is be sure to order the little ratchet and screw that goes with it. Costs an extra couple of bucks. But for under 100 you get a radio AND S3801 servo.