Which runway lighting component consists of flush centerline lights spaced at 50-foot intervals beginning 75 feet from the landing threshold?

• A. REIL
• B. Runway edge lights
• C. Runway centerline lights
• D. RVV

Answer: (C)

Centerline lighting provides a continuous line of lights along the runway’s center to guide the aircraft straight down the middle during landing and takeoff. The flush fixtures are embedded in the pavement and spaced at 50-foot intervals, with the first light located 75 feet from the threshold. This arrangement gives a clear, uniform cue to maintain the correct path as you approach the runway, which is especially helpful in low visibility. Other lighting components serve different roles: threshold identification lights mark the threshold, runway edge lights outline the sides of the runway, and RVV isn’t a standard runway lighting component. So the described setup is the runway centerline lighting.