Which are the primary flight controls?

Which are the primary flight controls?

• A. The ailerons, elevator, and rudder
• B. Flaps
• C. Trim tabs
• D. Spoilers

Answer: (B)

Primary flight controls are the devices you directly use to change the airplane’s orientation in normal flight: the ailerons control roll by tilting the wings, the elevator controls pitch by raising or lowering the nose, and the rudder controls yaw by moving the nose left or right. These three work together to steer and maneuvre the aircraft in three axes—roll, pitch, and yaw. Flaps, by contrast, are high-lift devices added to the wings to increase lift (and drag) at lower speeds, helping with takeoff and landing rather than providing primary attitude control in steady flight. Trim tabs adjust the amount of force needed on the control surfaces so you can maintain a steady flight without constant control input. Spoilers reduce lift and add drag and can aid in descent or, if used asymmetrically, assist with roll, but they are not the primary means of controlling the aircraft’s attitude.

Primary flight controls are the devices you directly use to change the airplane’s orientation in normal flight: the ailerons control roll by tilting the wings, the elevator controls pitch by raising or lowering the nose, and the rudder controls yaw by moving the nose left or right. These three work together to steer and maneuvre the aircraft in three axes—roll, pitch, and yaw.

Flaps, by contrast, are high-lift devices added to the wings to increase lift (and drag) at lower speeds, helping with takeoff and landing rather than providing primary attitude control in steady flight. Trim tabs adjust the amount of force needed on the control surfaces so you can maintain a steady flight without constant control input. Spoilers reduce lift and add drag and can aid in descent or, if used asymmetrically, assist with roll, but they are not the primary means of controlling the aircraft’s attitude.