PAPI / VASI

Pro Member Captain
Doyley Captain

Hi guys,

Is there a difference between these two?

Also, how do they work?? Are they automatic and do they change for each aircraft and weather?

Thanks 😀

Answers 2 Answers

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Pro Member First Officer
Ryan Finn (pilotguy44) First Officer

VASI is when there's 2 or 3 sets of two lights in front and behind each other. red is always above white from the approach perspective.

VASI

PAPI is a modernized computer version of that, with all 4 lights being next to each other, two red and two white.

PAPI

-PAPI is seen at bigger international airports while VASI is more common at smaller airports.

HOPE THAT HELPS! 😀

Pro Member Chief Captain
Jonathan (99jolegg) Chief Captain

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