Soar to New Heights with the 2026 Commercial Pilot License (CPL) Practice Exam – Ready for Takeoff!

Position lights are required on an aircraft from sunset to sunrise to ensure visibility and identification during the hours of darkness. These lights are essential for the safety of flight operations, as they help to indicate the aircraft's position, direction, and attitude to other pilots as well as air traffic controllers.

The requirement to use position lights during nighttime operations is based on the increased risk of collision and the reduced visibility provided by natural light. By having these lights illuminated, pilots can clearly see other aircraft in the vicinity, thereby enhancing situational awareness and promoting safety in the congested airspace during low-light conditions.

The other options do not align with regulations regarding the use of position lights. Position lights are not required during all flight operations, such as during daylight hours when visibility is generally sufficient. They are also not limited to only adverse weather conditions since visibility can be adequate by day, eliminating the necessity for these lights.