Which two conditions allow an ultralight to fly 30 minutes before sunrise or after sunset?
Anticollision light visible 3 miles and uncontrolled airspace only.
- A radio and a transponder
- A landing light and a medical certificate
- A 3-mile anticollision light and uncontrolled airspace ✔
Why: Twilight flying is allowed 30 minutes before sunrise and 30 minutes after sunset. The vehicle needs an operating anticollision light visible for at least 3 statute miles, and all flying must be in uncontrolled airspace.
Huh, didn't know that: Full night flight is not allowed for Part 103 ultralights at all.
Why did the ultralight pilot bring a flashlight at dusk? He wanted to be a bright spot in the sky.
References
Answer: A 3-mile anticollision light and uncontrolled airspace. Twilight flying is allowed 30 minutes before sunrise and 30 minutes after sunset. The vehicle needs an operating anticollision light visible for at least 3 statute miles, and all flying must be in uncontrolled airspace.
- 14 CFR Part 103, Ultralight Vehicles (eCFR) www.ecfr.gov/api/renderer/v1/content/enhanced/current/title-14?part=103
The vehicle is equipped with an operating anticollision light visible for at least 3 statute miles; and
Checked 2026-10-11. - 14 CFR 103.11, Daylight operations (LII / Cornell Law) www.law.cornell.edu/cfr/text/14/103.11
anticollision light visible for at least 3 statute miles; and (2) All operations are conducted in uncontrolled airspace.
Checked 2026-10-11.
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