FAA Part 107 Drone Practice Test

Which of the following would require a small unmanned aircraft to have anti-collision lights?

1. When flying during the day

2. When flying at night

3. Both day and night flying

4. Only during inclement weather

The correct answer is: When flying at night

Anti-collision lights are a specific requirement for small unmanned aircraft when they are operated at night. The purpose of these lights is to make the drone more visible to other pilots and to help prevent mid-air collisions. Federal Aviation Administration (FAA) regulations specify that during night operations, all unmanned aircraft must have anti-collision lights that can be seen from at least three statute miles, in addition to any other visibility requirements. When flying during the day, while visibility is generally better due to natural light, anti-collision lights are not mandated, as other aircraft and observers can usually see the drone without additional illumination. Therefore, the requirement for anti-collision lights is strictly enforced for night flights to enhance safety and situational awareness for all airspace users.