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Discussion

Consider the following statements about weight exchange rates:

1. They express weight and drag in a common measure.

2. They differ between short-range and long-range aircraft.

3. A single universal rate applies to all transports.

Which of the statements given above is or are correct?

  • A.1, 2 and 3
  • B.1 and 2 only
  • C.1 and 3 only
  • D.2 and 3 only

Answer: B

Correct answer: 1 and 2 only

Statements 1 and 2 are correct: the exchange rate expresses weight and drag in a common measure, and it differs between short-range and long-range aircraft because the fuel share differs. Statement 3 contradicts the second - there is no universal rate, and applying a long-range figure to a short-range design would badly overvalue every kilogramme saved.

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