once you advance from flying around in simple circles you will need the rudder. Rudder is used for keeping the airplane on a straight course when flying straight up, it is used in 4 point rolls, and lots of other stuff. Fly straight and level and wiggle the rudder and watch the aircraft yaw. Try to make a circle using the rudder instead of the aileron, or add a little rudder into an aileron turn, to get used to using it.


peter