aircraft systemsFAA-published sample question (ADX, Aug 2021)
Which is a purpose of ground spoilers?
A
Aid in rolling an airplane into a turn.
B
Increase the rate of descent without gaining airspeed.
C
Reduce the wings' lift upon landing.✓ Correct Answer
Explanation
Ground spoilers deploy on landing to destroy (dump) wing lift, putting the airplane's weight on the wheels for effective braking and adding drag. Roll control uses flight spoilers or ailerons, and increasing descent rate in flight uses speed brakes.
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