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Statement I: Thrust reversers are credited in the certified rejected takeoff distance.

Statement II: A reverser may fail to deploy, so the requirement assumes brakes alone.

In the light of the above statements, choose the correct answer.

  • A.Both Statement I and Statement II are incorrect
  • B.Statement I is correct but Statement II is incorrect
  • C.Statement I is incorrect but Statement II is correct
  • D.Both Statement I and Statement II are correct

Answer: C

Correct answer: Statement I is incorrect but Statement II is correct

Statement I is incorrect: thrust reversers are not credited in the certified rejected takeoff or landing distance on most aircraft.

Statement II is correct and is the reason. A reverser may fail to deploy, and the certified distance must be achievable in the configuration that is guaranteed, so the calculation assumes wheel braking and spoilers alone. The reversers are therefore a real operational margin, valuable on a contaminated runway, but they buy no reduction in the published field length.

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