Which components are considered the aircraft's control surfaces?

Which components are considered the aircraft's control surfaces?

• A. Fuselage, wings, and tail
• B. Rudder, Ailerons, and Elevator
• C. Engines, fuel tanks, and landing gear
• D. Flaps, spoilers, and slats

Answer: (B)

Control surfaces are the movable parts that steer an airplane by shaping the airflow around the wings and tail. The three primary control surfaces are the rudder, which controls yaw by deflecting air at the tail to push the nose left or right; the ailerons, which control roll by tilting the wings to raise one wing and lower the other; and the elevator, which controls pitch by tilting the nose up or down. Together, they provide full three-axis attitude control, letting the aircraft turn, roll, and climb or descend. Other surfaces like flaps, spoilers, and slats modify lift or drag to aid takeoff, landing, or speed control, but they aren’t the main control surfaces used for steering in normal flight. Structural components such as the fuselage, wings, tail, engines, fuel tanks, and landing gear are not control surfaces themselves.

Control surfaces are the movable parts that steer an airplane by shaping the airflow around the wings and tail. The three primary control surfaces are the rudder, which controls yaw by deflecting air at the tail to push the nose left or right; the ailerons, which control roll by tilting the wings to raise one wing and lower the other; and the elevator, which controls pitch by tilting the nose up or down. Together, they provide full three-axis attitude control, letting the aircraft turn, roll, and climb or descend.

Other surfaces like flaps, spoilers, and slats modify lift or drag to aid takeoff, landing, or speed control, but they aren’t the main control surfaces used for steering in normal flight. Structural components such as the fuselage, wings, tail, engines, fuel tanks, and landing gear are not control surfaces themselves.