The CRJ-550 has how many ground lockpins?

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Prepare for the GoJet Airlines CRJ-550 Test. Use flashcards, multiple choice questions, and detailed explanations to ace your exam!

Multiple Choice

The CRJ-550 has how many ground lockpins?

Explanation:
Ground lockpins are used to secure flight controls on the ground to prevent movement from wind, towing, or handling. On the CRJ-550 there are four of these pins, one for each primary control surface that could move when parked: the two ailerons and the two elevators on the horizontal stabilizer. In place, they lock the surfaces so they can’t deflect with gusts or ground movement. Before flight, all four pins are removed and the control surfaces are free to move, with the absence of pins verified. That’s why four is the correct count.

Ground lockpins are used to secure flight controls on the ground to prevent movement from wind, towing, or handling. On the CRJ-550 there are four of these pins, one for each primary control surface that could move when parked: the two ailerons and the two elevators on the horizontal stabilizer. In place, they lock the surfaces so they can’t deflect with gusts or ground movement. Before flight, all four pins are removed and the control surfaces are free to move, with the absence of pins verified. That’s why four is the correct count.

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