What Does VASI Stand For?

VASI stands for Visual Approach Slope Indicator

VASI, or Visual Approach Slope Indicator, is a lighting system employed in aviation to provide guidance to pilots during the approach and landing phases of flight. It consists of a series of lights arranged to indicate whether an aircraft is on the correct glide path. By using VASI, pilots can visually assess their altitude in relation to the optimal descent slope, enhancing safety and precision during landing.