Aircraft Auto Pilot Roll Control System Out Lines q Introduction q Flight Control Surfaces q Block Diagram q Components and functions q Advantages q Applications Introduction Autopilot is a system of automatic controls which holds the aircraft on any selected magnetic headin. In this project our goal is to control the roll angle of the aircraft in the autopilot system. Main flight Control System Ø Aircraft is controlled by three main surfaces: 1)AILERON 2)RUDDER