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Consider the following pairs of aircraft type and its typical thrust-to-weight ratio:

Long-range transport - About 0.25 to 0.30

Air superiority fighter - About 0.9 to 1.1

Light general aviation twin - About 0.3

Sailplane - About 0.5

How many of the pairs given above are correctly matched?

  • A.All four
  • B.Only three
  • C.Only one
  • D.Only two

Answer: B

The first three are the usual figures, and the spread between a transport and a fighter is the single most striking feature of the comparison. A sailplane has no installed thrust at all, so no meaningful ratio exists for it.

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