What is the function of the ailerons?

The function of the ailerons is to control the roll of the aircraft. Ailerons are located on the outer wings of the aircraft and are used to create differential lift for each wing. When a pilot moves the control yoke or stick to the left or right, one aileron goes up while the other goes down. This action changes the air pressure on the wings, producing a rolling motion. The wing with the aileron that is deflected upwards generates less lift, while the wing with the aileron that is deflected downwards generates more lift. This difference in lift causes the aircraft to roll in the desired direction, allowing for banked turns and roll maneuvers during flight. This function is essential for maintaining control during various phases of flight, particularly during turns.

Other options relate to different flight control functions: speed control is managed by throttles and pitch control by elevators, while yaw is influenced by the rudder located on the vertical stabilizer. Each of these controls has a distinct purpose, separate from what ailerons provide.