Discussion
Reverse pitch on a turboprop is used to
Answer: B
Correct answer: Produce retarding thrust after landing
Turning the blades past fine pitch into a negative angle makes the propeller accelerate air forward, so the thrust acts rearward and helps decelerate the aircraft after touchdown. It is highly effective at high speed, when the propeller is handling a great deal of air, and it saves brake and tyre wear on short or contaminated runways. Feathering is the opposite extreme of blade angle, used in flight after a failure, and reverse is not used in flight at all.
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