Which type of lighting is indicated by the color red on aircraft?

The color red on an aircraft is specifically used for the navigation light located on the left wingtip. This color-coding is part of the standardized system for aircraft lighting, which helps in identifying the position and orientation of an aircraft to other pilots and observers.

The left wingtip navigation light is red, while the right wingtip light is green. This distinction allows pilots to easily determine the direction an aircraft is facing and its relative position when viewed from multiple angles. For example, if only one light is visible when two aircraft are approaching each other, pilots can discern whether they are approaching head-on or if one aircraft is overtaking the other.

This system is crucial for ensuring safe operations in low visibility conditions, as it assists in preventing mid-air collisions. Understanding the importance of these color codes can enhance situational awareness for pilots and ground crew alike.