SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/sport-103-controlled-airspace

To fly an ultralight in Class B, C or D airspace, what do you need?

Prior authorization from the ATC facility.

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  1. Prior authorization from the ATC facility ✔
  2. Only a working transponder
  3. A sport pilot certificate

Why: Part 103 says no ultralight may enter Class A, B, C or D airspace, or the surface area of Class E at an airport, without prior authorization from the ATC facility in charge.

Huh, didn't know that: Class E airspace is covered only where it is designated for an airport, meaning its surface area.

The dad joke
Why did the ultralight call the tower first? It believed in asking before dropping in.
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References

Answer: Prior authorization from the ATC facility. Part 103 says no ultralight may enter Class A, B, C or D airspace, or the surface area of Class E at an airport, without prior authorization from the ATC facility in charge.

  1. 14 CFR Part 103, Ultralight Vehicles (eCFR) www.ecfr.gov/api/renderer/v1/content/enhanced/current/title-14?part=103
    unless that person has prior authorization from the ATC facility having jurisdiction over that airspace.
    Checked 2026-10-11.

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