What is the location and color mapping of the Position Light?

• A. Left side Green; Right side Red; Tail White.
• B. Left side Red; Right side White; Tail Green.
• C. Left side White; Right side White; Tail Red.
• D. Left side Red; Right side Green; Tail White.

Answer: (D)

Position lights use color and placement to show aircraft orientation and heading to other pilots. On most aircraft, the left wingtip carries a red light, the right wingtip carries a green light, and there is a white light on the tail. This standard arrangement allows observers to determine direction and whether two aircraft are converging.

The mapping described here—left side red, right side green, tail white—follows that international convention, so it is the correct choice. Other mappings would conflict with this widely used standard and could cause confusion for other pilots.