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Anti-collision lighting visibility at night

Remote Pilot (Part 107) practice question 3 of 19 on Operations / Emergency Procedures. ACS element UA.V.C.K7 · difficulty: recall. Want to answer it in a timed quiz? Use the Remote Pilot (Part 107) practice mode.

Question bank updated 2026-09-22

QUESTIONUnder § 107.29, lighted anti-collision lighting on a small unmanned aircraft operated at night must be visible for at least what distance?

  1. A3 statute miles
  2. B1 statute mile
  3. C5 statute miles in all directions
Show the answer and explanation

Correct answer: A. 3 statute miles

  • A — correct § 107.29(a)(2) requires anti-collision lighting visible for at least 3 statute miles with a flash rate sufficient to avoid a collision.
  • B — incorrect One statute mile is less than the 3-statute-mile visibility the regulation requires.
  • C — incorrect The regulation sets the minimum at 3 statute miles, not 5.

BACKGROUND

Section 107.29 governs operation of small unmanned aircraft systems at night and during civil twilight. Under paragraph (a), night operations require that the remote pilot in command has completed an initial knowledge test or training under § 107.65 after April 6, 2021, and that the small unmanned aircraft has lighted anti-collision lighting visible for at least 3 statute miles with a flash rate sufficient to avoid a collision. Paragraph (b) requires the same lighting during civil twilight. The lighting lets other aircraft see the small unmanned aircraft, and the pilot may reduce its intensity, but not extinguish it, when operating conditions make that safer.

STUDY TIP

Pair the two lighting facts in § 107.29: visible for at least 3 statute miles, with a flash rate sufficient to avoid a collision.

KEY POINTS

  • Night anti-collision lighting must be visible for at least 3 statute miles.
  • The lighting must have a flash rate sufficient to avoid a collision.
  • The same lighting is required during civil twilight.

SOURCES

  • 14 CFR 107.29(a)(2)
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MORE ON OPERATIONS / EMERGENCY PROCEDURES

SkyDrill is not affiliated with the FAA. This is an original practice item based on 14 CFR part 107, 14 CFR part 89, and the FAA Remote Pilot – Small UAS Study Guide (FAA-G-8082-22). Regulations and handbooks are revised; confirm details against the current edition.