Pilot Institute Practice Test

Which of the following is not a primary flight control?

Ailerons Flaps Rudder Elevator

Correct Answer:

Flaps

Explanation:

The key idea is that primary flight controls are the surfaces you move to directly control the aircraft’s attitude in normal flight. Ailerons, elevator, and rudder are the ones that steer the aircraft: ailerons control roll, elevator controls pitch, and the rudder controls yaw. Flaps, on the other hand, are secondary controls. They change the wing’s lift and drag to help the airplane fly safely at lower speeds, such as during takeoff and landing. They don’t directly command the airplane’s orientation in stable, level flight; instead, they modify aerodynamic characteristics and require the pilot to use the primary controls to achieve the desired attitude. So the option describing flaps is the correct choice for not being a primary flight control.

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