What is the primary function of ailerons?

The primary function of ailerons is to control roll around the longitudinal axis of the aircraft. Ailerons are located on the outer wings and move in opposite directions to each other: when one aileron deflects upward, it decreases lift on that wing, while the other aileron deflects downward to increase lift on the opposite wing. This differential lift causes the aircraft to roll in the desired direction.

Controlling roll is crucial for maneuvering during flight, especially when turning or banking the aircraft. It allows pilots to effectively manage the aircraft's orientation and stability, which is essential for both performance and safety.

The control of pitch is primarily managed by the elevator, while yaw is controlled using the rudder. Aerodynamic lift pertains to the overall lift generated by the wings and is not the specific function of ailerons. Understanding these specific roles helps to clearly define how ailerons contribute to the aircraft's flight dynamics.