AI Overview
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The red light on an airplane is on the left wingtip, or port side. The green light is on the right wingtip, or starboard side.
Explanation
The red and green lights help other pilots and observers determine the direction and orientation of the plane. For example, if you see a red light, the plane is either crossing your path from left to right or facing away from you. If you see a green light, the plane is crossing your path from right to left.
Learn more
The red light on an airplane is on the left wingtip, or port side. The green light is on the right wingtip, or starboard side.
Explanation
The red and green lights help other pilots and observers determine the direction and orientation of the plane. For example, if you see a red light, the plane is either crossing your path from left to right or facing away from you. If you see a green light, the plane is crossing your path from right to left.
