PVASI

AcronymDefinition
PVASIPulsating Visual Approach Slope Indicator
References in periodicals archive ?
We're used to Visual Approach Slope Indicators (VASI) and Precision Approach Path indicators (PAPI), but now with a Pulsating Visual Approach Slope Indicator (PVASI) what will you see when you're on the glidepath?
A PVASI shows you on the glide path with either a steady white or alternating read and white light.