Aeromedical factorsQuestion 883 of 934

A pilot levels off abruptly after a climb and feels as if the airplane is tumbling backward. What is this illusion?

  1. Elevator illusion
  2. Somatogravic illusion
  3. The leans
  4. Inversion illusion
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Correct answer: Inversion illusion

An abrupt change from a climb to straight-and-level flight can create the inversion illusion.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 17: Aeromedical Factors — Vestibular Illusions, page 430

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Questions last reviewed: 18 October 2026