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Fixed costs of \( 6.0 \) million dollars a year are spread over \( 3000 \) block hours. The fixed cost per block hour is

  • A.500 dollars
  • B.18000 dollars
  • C.200 dollars
  • D.2000 dollars

Answer: D

Correct answer: 2000 dollars

Divide the annual fixed cost by the block hours flown:

\[ \frac{6\,000\,000}{3000} = 2000\ \mathrm{dollars\ per\ block\ hour} \]

The figure falls as utilisation rises: at 4000 hours the same fixed cost would be 1500 dollars an hour. That is the whole arithmetic behind high-utilisation operating models - the aircraft's fixed charges are unaffected by how much it flies, so every additional hour dilutes them.

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