Helicopter Approach Path Indicator(HAPI)

The Helicopter Approach Path Indicator (HAPI) is a visual aid system designed to assist helicopter pilots during the approach and landing phase. Similar to the Precision Approach Path Indicator (PAPI) used by fixed-wing aircraft, the HAPI light provides guidance to helicopters by projecting a series of lights that indicate the proper approach path to the landing zone.

The HAPI light typically consists of a row of lights that emit different colors to signal the helicopter's position in relation to the ideal approach path. By adjusting their approach angle based on the lights' configurations, pilots can ensure a safe and precise landing. This is particularly valuable in low-visibility conditions or when landing in challenging environments.

The use of HAPI lights contributes to aviation safety by providing clear visual guidance for helicopter pilots, enabling them to make real-time adjustments to their approach and descent. The HAPI system is an important tool in facilitating safe and accurate helicopter landings, especially in areas where traditional landing aids may be limited or unavailable.