What does PAPI stand for?

The term PAPI stands for Precision Approach Path Indicator. This system is used in aviation to provide visual guidance to pilots during the approach phase of landing. It consists of a series of lights located on the side of the runway, which indicate whether the aircraft is on the correct approach path. The lights typically show a combination of red and white depending on the aircraft's altitude in relation to the ideal glideslope, helping pilots ensure a safe landing.

The correct terminology emphasizes that the system is designed for precision in approach pathways, aiding pilots to align accurately with the runway during landing procedures. Understanding PAPI is essential for airside operations, as it plays a critical role in maintaining safety and efficiency in airport operations.