What is the primary function of ailerons on an aircraft?

The primary function of ailerons on an aircraft is to provide roll control. Ailerons are movable surfaces located on the trailing edges of the wings and are used in pairs; when one aileron is deflected upwards, the other is deflected downwards. This differential movement generates a difference in lift between the wings, causing the aircraft to roll in the direction of the raised aileron.

Teaching pilots how to manage roll is essential for coordinated turns and maintaining stable flight. Ailerons work in conjunction with other control surfaces, such as rudders and elevators, but their specific function is critical for controlling the aircraft's roll, which is the rotation of the aircraft around its longitudinal axis.

Understanding the role of ailerons is crucial for pilots, as controlling roll directly affects maneuverability, stability, and overall flight safety.