AerodynamicsQuestion 472 of 934

The speed of an airplane in a turn doubles at the same bank angle. What happens to the turn radius?

  1. It doubles
  2. It quadruples
  3. It is halved
  4. It stays the same
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Correct answer: It quadruples

If the speed is doubled, the radius of turn is quadrupled.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 5: Aerodynamics of Flight — Forces in Turns — Radius of Turn, page 136

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Questions last reviewed: 18 October 2026