Which of the following are the primary flight controls on an aircraft?

The primary flight controls on an aircraft are essential for managing its attitude and direction during flight. Ailerons, elevators, and rudder constitute these primary controls. Each of these components plays a specific role in aircraft maneuverability:

• Ailerons are located on the wings and control roll, allowing the aircraft to tilt sideways to turn left or right.

• Elevators are found on the tail and control pitch, which means they adjust the aircraft's nose up or down.

• The rudder, which is also located on the tail, manages yaw, helping the aircraft turn left or right around its vertical axis.

Together, these controls enable pilots to perform coordinated maneuvers and maintain control of the aircraft in various flight conditions, thus making them fundamental to the operation of an aircraft. The other choices refer to different aspects of flight controls or systems that are not classified as primary flight controls.