AerodynamicsQuestion 486 of 934

What is the blade angle of a constant-speed propeller during takeoff?

  1. Low
  2. High
  3. Zero
  4. Negative
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Correct answer: Low

A low blade angle keeps the AOA small and lets the engine turn at high rpm for maximum thrust.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 5: Aerodynamics of Flight — Basic Propeller Principles, page 127

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Questions last reviewed: 18 October 2026