FAA Part 107 Remote Pilot (UAG)OperationsEasy
A remote pilot in command plans to fly a small UAS over open farmland well clear of any airports, with no waiver on file. According to 14 CFR Part 107, what is the maximum altitude AGL at which the pilot may operate in uncontrolled Class G airspace without an obstacle exception or waiver?
- A400 feet
- B500 feet
- C700 feet
- D1,000 feet
Show answer & explanationAnswer & explanation
Correct answer: A. 400 feet
14 CFR 107.51 limits small UAS operations to 400 feet AGL unless flown within 400 feet of a structure (107.51 exception) or a waiver is obtained. This is a baseline operating limitation for all Part 107 flights.
Why the other options are wrong
- B. Not a Part 107 altitude limit; no regulatory basis.
- C. Not a Part 107 altitude limit; no regulatory basis.
- D. 1,000 feet exceeds the Part 107 limit and would require a waiver.
Part 107 Altitude Limit
Small UAS operations are limited to 400 feet AGL unless flown near a structure or under a waiver.
- Default max altitude: 400 ft AGL
- Exception: within 400 ft laterally of a structure, may exceed 400 ft AGL up to 400 ft above the structure's top
- Waivers under 107.200 can authorize higher altitudes
Memory trick: 'Four hundred feet, stay complete' — remember the ceiling.