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Performance and weight and balanceQuestion 847 of 934

For a given configuration, at which condition does an airplane achieve maximum range?

  1. At the minimum controllable airspeed
  2. At the maximum lift/drag ratio (L/DMAX)
  3. At the point where the fuel flow is at its minimum value
  4. At the stall angle of attack
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Correct answer: At the maximum lift/drag ratio (L/DMAX)

The maximum range condition is obtained at maximum lift/drag ratio.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 11: Aircraft Performance — Range Performance, page 266

Practice performance and weight and balance

Questions last reviewed: 18 October 2026