Which of the following are classified as auxiliary flight controls?

Auxiliary flight controls are devices that enhance the performance and handling characteristics of an aircraft, typically supplementing the primary control surfaces. In this case, leading and trailing edge flaps, slats, and slots fit the definition of auxiliary flight controls because they are designed to improve lift and control at lower speeds, particularly during takeoff and landing phases of flight.

Flaps increase the wing's camber and surface area, allowing for a greater lift coefficient at lower speeds. Slats and slots enhance airflow over the wing at high angles of attack, preventing stalls and maintaining control. These components work alongside the primary controls, which are usually classified as ailerons, elevators, and rudders.

By enhancing the aerodynamic properties of the wing, these auxiliary controls play a crucial role in the aircraft's performance, particularly during critical phases such as climbing and descending.