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All of the following are included in operating empty weight EXCEPT

  • A.Engine oil
  • B.Catering equipment
  • C.Usable fuel
  • D.The flight crew

Answer: C

Correct answer: Usable fuel

Operating empty weight is the aircraft ready for service but empty of revenue load and of fuel: it includes the flight and cabin crew, engine oil, catering equipment, emergency equipment and unusable fluids. Usable fuel is added on top, which is why zero fuel weight, take-off weight and operating empty weight form a ladder with fuel and payload as the rungs.

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