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SESK: Stuff Everyone Should Know · sesk.info/sport-class-d-height

Class D airspace generally extends up to how high above the airport elevation?

2,500 feet above the airport elevation.

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  1. 1,200 feet
  2. 2,500 feet ✔
  3. 4,000 feet

Why: Class D surrounds airports that have an operating control tower. It generally extends from the surface to 2,500 feet above the airport elevation.

Huh, didn't know that: Class D airspace is charted in MSL altitude, not feet above ground.

The dad joke
Class D is like a drive-through: you have to talk to the tower before you pull up.
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References

Answer: 2,500 feet. Class D surrounds airports that have an operating control tower. It generally extends from the surface to 2,500 feet above the airport elevation.

  1. FAA AIM 3-2-5 Class D Airspace www.faa.gov/air_traffic/publications/atpubs/aim_html/chap3_section_2.html
    Generally, Class D airspace extends upward from the surface to 2,500 feet above the airport elevation (charted in MSL)
    Checked 2026-10-10.
  2. FAA AIM 3-2-5 Class D Airspace www.faa.gov/air_traffic/publications/atpubs/aim_html/chap3_section_2.html
    Two-way radio communication must be established with the ATC facility providing ATC services prior to entry
    Checked 2026-10-10.

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