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AirspaceQuestion 144 of 934

What are the general limits of Class D airspace?

  1. From the surface up to 4,000 feet above the airport elevation, around airports with radar approach control
  2. From 700 feet AGL up to 2,500 feet above the airport elevation, around towered airports
  3. From the surface up to 2,500 feet above the airport elevation, around towered airports
  4. From the surface up to 1,200 feet AGL, around any airport with instrument approaches
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Correct answer: From the surface up to 2,500 feet above the airport elevation, around towered airports

Class D extends from the surface to 2,500 feet above the airport elevation. It surrounds airports with an operating tower.

Source: Aeronautical Information Manual (FAA, Basic with Change 3, 9 July 2026), AIM 3-2-5 Class D Airspace, page 185

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Questions last reviewed: 18 October 2026