AerodynamicsQuestion 434 of 934

What is true of total drag when an aircraft flies in steady flight at L/DMAX?

  1. Total drag is at a minimum
  2. Total drag is at a maximum
  3. Induced drag is zero
  4. Parasite drag is zero
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Correct answer: Total drag is at a minimum

At the maximum lift/drag ratio, the total drag is at a minimum.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 5: Aerodynamics of Flight — Lift/Drag Ratio, page 102

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Questions last reviewed: 18 October 2026