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AES-117-48-GR/RE
Helicopter Approach Path Indicator
Aplicattion / Use
The signal format of the HAPI shall include four discrete signal sectors, providing an “adove slope”, an “on slope”, a “slightly below” and a “below slope” signal.
Compliance with standards
- ICAO Annex 14, Vol II
- ICAO- PHOTOMETRIC Figure 5-14 and 5-15
- CHROMATICITY – Section 5.3.5