HAPI System Helicopter Approach Path Indicator AO-HP-HAPI

A Helicopter Approach Path Indicator (HAPI) is a visual aid system designed to assist helicopter pilots during the approach and landing phase. It provides guidance to pilots by indicating the correct approach slope to a helipad or landing area, enhancing safety and precision during critical flight operations.

The HAPI system typically consists of a series of lights installed in a linear configuration along the approach path. These lights emit a specific color and intensity to convey the helicopter's position in relation to the ideal approach slope. By observing the lights, pilots can adjust their descent rate and alignment to ensure a stabilized and safe approach.

The color-coding of the lights is standardized, with typically red, white, and amber lights used to indicate high, correct, and low approach paths, respectively. This color scheme provides intuitive visual cues to pilots, enabling them to make real-time adjustments to their flight path.

HAPI systems are particularly valuable in environments where visual cues may be limited, such as in low-light conditions or in areas with challenging terrain. They are commonly used at helipads located in hospital settings, offshore platforms, and remote landing sites where precise and safe approaches are essential.

The implementation of HAPI systems contributes to improved operational safety, reduced risk of controlled flight into terrain, and enhanced situational awareness for helicopter pilots. By providing clear and unambiguous guidance for descent profiles, the HAPI system supports pilots in achieving accurate and stabilized approaches, ultimately reducing the likelihood of accidents and enhancing overall operational efficiency.

In conclusion, the Helicopter Approach Path Indicator (HAPI) serves as a valuable tool for promoting safe and precise helicopter landings. Its intuitive visual guidance system equips pilots with the necessary information to conduct approach and landing maneuvers with confidence, particularly in challenging or critical operational environments.

The angle of elevation setting of HAPI must be such that during approach the pilot of the helicopter observing the upper boundary of the “Below Slope” sector (Fix Red) clear all objects in the approach area by a safe margin. 

The Helicopter Approach Path Indicator HAPI System which emit in elevation four distinct types of light : 

1. Flashing Green Light = Helicopter above the optimal approach slope optimum (too high).

2. Fix Green Light = Helicopter on the slope.

3. Fix Red Light = Helicopter slightly below the optimal slope (slightly too low).

4. Flashing Red Light = Helicopter below the optimal slope (too low).

     Compliance:

1. ICAO Annex 14 Volume II Heliports 5.3.

2. FAA  AC 150/5390-2A Heliport Design Guide

     Features:

1. Adopt super bright brand LED, high intensity with a lower energy consumption.

2. Input voltage available in DC(12-48V DC) or AC(100-265V AC 50-60Hz).

3. Clear polycarbonate lens for converging light and also provides corrosion resistance and UV protection.

4. Efficient photometric design provides excellent light distribution, make sure meet ICAO and FAA demand.

5. Housing material is stainless steel which has strong corrosion resistance, Shock and Vibrations protection.

6. UV protection Powder coated bright yellow color base make better visibility.

7. Fragile coupling reduce the secondary damage to helicopters effectively.

     Specification:

     Dimension & Installation:

     Applications:

HAPI System Helicopter Approach Path Indicator AO-HP-HAPI is used to glide slope on final approach to the helipad, it needs to use with other helipad light. Offshore or Onshore heliport both can use.