Q Aviation

Waldammeweg 7D 4338 PM

Middelburg, The Netherlands



skype: q-aviation-b.v


+31(0)118 236 100

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Q-Helipad Hapi System



Technical details


Datasheet, Manuals and Drawings


HAPI (helicopter approach path indicator) systems (Q-HAPI system) provides the necessary visual information to place the helicopter on the ideal approach slope path. Pilots can easily determine if their approach is too high, too low, or correctly on slope through combinations of red and green lights. The Q-HAPI is available in three basic models with multiple configuration options to comply to ICAO requirements.

The Q-HAPI consists of a single lighting to provide a visual indication of the correct approaching path of the helicopter . In compliance with ICAO requirements, the Q -HAPI is located adjacent to the nominal aiming point and aligned with the preferred approach directions. The angle of elevations setting of the Q -HAPI is easy to adjust by the build in monitor showing the actual angle. The Q -HAPI is below 25 cm and it is therefore approved for all helidecks installations, forming no obstruction for the helicopter. Each flight approach path is required to have a HAPI system.

A) This product must be connected to the Q72RI03C – Q-HAPI control system. The Controller is sold separately.
B) When a complete helideck/heliport package is offered, the Status Light Controller can be built-in the Q-Control X series.

The Q-HAPI is a lighting unit which emits four distinct types of light:

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

The signal repetition rate of the flashing sectors must be greater than 2 Hz.
In accordance with ICAO, the HAPI is capable of adjustment in elevation at any desired angle between 1 and 12 degrees above the horizontal with an accuracy of +/- 5 minutes of arc. The Q-HAPI will switch off atomically when the vertical misalignment of a unit exceeds ±0.5 degrees (±30 minutes).


In compliance with ICAO requirements, the Q -HAPI must be located adjacent to the nominal aiming point and aligned in line with the preferred approach directions. The angle of elevations setting of the Q -HAPI must be such that, during approach, the pilot of the helicopter observing the upper boundary of the “below slope” signal (flashing red) clears all objects in the approach area by a safe margin.

Order code


Additional Information

Article Number: Q72FR03
Manufacturer: Q-Aviation B.V.
HS-Code: 94054039
Warranty: 2 years

Product Specifications

Application: Helipad
Suitable For: Safe Area
Zone: Safe Area
Light Color: Green 530nm and Red 630nm
Flash rate: 2 Hz
Light Source: LED, steady burning + flashing
Light Intensity: 9.000 cd
Enclosure: Aluminium, Powder coated RAL5015/ Polyacrylate glass
Mounting: Rigid , 8x M8
External earthing: up to 4mm2 / AWG 12
Input Voltage: 24 VDC
Cable: 1 x 3x2,5mm², 1 x 6x1mm²
Photometrics: According ICAO Annex 14 Volume II –Figure 5-11 (datasheet)
Earth Connection: Yes
Tested Ambient Temp: -25°C to + 40°C
Incompliance with: ICAO annex 14, CAP437
Cable glands included: 2 x M25x1.5
Cable outer dimension : 12 - 19mm
Consumption: 50 Watt
Life expectancy: 100.000+ hours
Cable bottom entry: 2 x M25x1.5
Ingress Protection: IP67
Flash sequence: 2 Hz
Cable glands: 2 x M25x1.5
Cable size: 12-19mm
Ambient temp: -25°C to + 55°C

Size and Dimension

Weight: 25 Kg
Dimension: 688x 339x 249 m m (LxWxH)
Dimension Packaging: 800x400x400 mm (LxWxH)
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