Helicopter Approach Path Indicator HAPI system for heliport lighting

The Helicopter Approach Path Indicator HAPI System is a critical lighting system used to assist helicopter pilots during the approach and landing phase of their flights. This system provides visual guidance by indicating the correct glidepath for a safe descent and landing.

The HAPI consists of a series of lights arranged in a vertical line, usually located on the side of the landing area or on a dedicated tower. These lights emit a bright, focused beam of light, typically in a specific color, such as white or green. The lights are calibrated to provide a visual reference for the pilot to maintain the correct angle of descent.

One of the key advantages of the HAPI system is its ability to provide pilots with real-time feedback on their approach angle. By maintaining the correct glidepath, pilots can ensure a safe and controlled landing. The lights are designed to be visible from a distance, even in adverse weather conditions or during night operations, allowing pilots to make accurate adjustments to their approach.

The HAPI system is widely used in various settings, including helipads, hospitals, offshore platforms, and military bases. It plays a crucial role in enhancing safety and reducing the risk of accidents during helicopter operations. Pilots rely on the HAPI system to maintain a consistent and safe approach angle, especially in challenging environments or unfamiliar landing sites.

Installation and maintenance of the HAPI system are relatively straightforward. The lights are typically mounted on a dedicated structure or pole, ensuring optimal visibility for approaching helicopters. Regular inspections and maintenance are required to ensure the lights are functioning correctly and providing accurate guidance to pilots.

Overall, the Helicopter Approach Path Indicator is a vital tool for helicopter pilots, providing clear visual guidance during the approach and landing phase. Its reliable and intuitive design helps pilots maintain a safe glidepath, even in challenging conditions. The HAPI system continues to play an essential role in enhancing safety and efficiency in helicopter operations worldwide.

stem can be used by all helicopter as soon as it is set up since it does not require any airborne instrumentation. In compliance with ICAO requirements the Helicopter Approach Path Indicator HAPI must be located adjacent to the nominal aiming point and aligned in azimuth with the preferred approach direction. 

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 system for heliport lighting 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.