The Rudder is probably the most underused control on most radio controlled planes. Many beginners probably wonder why its there because they get to use it so infrequently. Actually, its one of the most important rc transmitter controls for your model. Its use, to keep a plane going in a particular direction, is a skill that is the hallmark of an accomplished pilot. It is infrequently used on its own but mainly in combination with other controls. To learn more? Click on the picture above.