VASI lights, front lights white, back lights red indicate which of the following?

VASI lights, front lights white, back lights red indicate which of the following?

• A. Correct Glidepath
• B. Too Low
• C. Too High
• D. Not On Glidepath

Answer: (A)

VASI communicates your height relative to the glide path through colors on two sets of lights. When you’re on the correct glidepath, the front lights are white and the back lights are red, signaling you’re at the intended descent angle to reach the runway. If you’re too high or too low, the pattern changes to indicate you should adjust your approach. So the white front and red back configuration specifically marks that you’re on the glidepath.

VASI communicates your height relative to the glide path through colors on two sets of lights. When you’re on the correct glidepath, the front lights are white and the back lights are red, signaling you’re at the intended descent angle to reach the runway. If you’re too high or too low, the pattern changes to indicate you should adjust your approach. So the white front and red back configuration specifically marks that you’re on the glidepath.