OK, a distortion pedal is an effect pedal mostly used by musicians to get a "meaner" sound. Where as fuzz pedals just make your sound "dirty"; these "distortion" pedals push your sound over the edge....
The rudder is used to control the airplane on the yaw axis (left and right.) It is most commonly used to keep an aircraft "coordinated" through a turn. During a turn, the pilot first uses the...