FAA Part 107 Remote Pilot (UAG)RegulationsEasy
A remote pilot in command is planning a Part 107 survey flight and wants to confirm the maximum allowable groundspeed for the small UAS. What is the groundspeed limit under 14 CFR 107.51?
- A87 knots (100 mph)
- B120 mph (104 knots)
- C60 knots (69 mph)
- D100 knots (115 mph)
Show answer & explanationAnswer & explanation
Correct answer: A. 87 knots (100 mph)
14 CFR 107.51(a) limits small UAS groundspeed to a maximum of 87 knots, which is equivalent to 100 mph.
Why the other options are wrong
- B. Incorrect — exceeds the actual limit.
- C. Incorrect — too conservative; not the regulatory limit.
- D. Incorrect — exceeds the actual limit.
Maximum Groundspeed (107.51)
Small UAS operations under Part 107 are limited to a maximum groundspeed of 87 knots (100 mph).
- 87 knots = 100 mph
- Applies to groundspeed, not airspeed
- Part of the operating limitations in 107.51
- Also includes 400 ft AGL altitude and 3 SM visibility limits
Memory trick: '87 knots, 100 flat' — the speedy sUAS cap.