What does "PAPI" stand for in aviation?

"PAPI" stands for Precision Approach Path Indicator. This system is crucial in aviation as it provides visual guidance to pilots on the correct glide path during their approach to landing. PAPI consists of a series of lights arranged in a specific configuration, typically showing a combination of red and white lights. When the lights are correctly aligned, it indicates that the pilot is on the proper descent path, enhancing safety during the landing phase. This technology is particularly beneficial in reducing the likelihood of approach errors, especially in challenging weather conditions or at airports with limited visibility.

The other options presented do not correspond to established aviation terminology or procedures, reinforcing that the correct answer is the one related directly to the visual descent guidance system.