Helicopter Approach Path Indicator HAPI light

The Helicopter Approach Path Indicator (HAPI) is a visual aid used to assist helicopter pilots in establishing and maintaining a safe approach path during the landing phase. The system consists of a series of lights that are typically installed in a row alongside the landing area, providing a clear indication of the correct approach angle for the pilot.

The HAPI light utilizes a combination of red and white lights to convey to the pilot whether the helicopter is on a proper descent path. When the pilot is on the correct glide path, the lights appear white, indicating that the approach angle is within the safe parameters. If the helicopter deviates from the optimal path, the lights change to red, signaling to the pilot that adjustments are needed to return to the correct descent angle.

This visual guidance system is particularly valuable in conditions of reduced visibility, such as during night operations or adverse weather, where the pilot's ability to visually gauge the approach path may be limited. By providing a clear and intuitive visual reference, the HAPI system enhances safety and precision during helicopter landings, reducing the risk of controlled flight into terrain (CFIT) and other landing-related incidents.

Overall, the Helicopter Approach Path Indicator serves as a vital tool in supporting safe and accurate landings for helicopters, contributing to enhanced operational safety and efficiency in various aviation scenarios.

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:

Helicopter Approach Path Indicator HAPI light 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.