Side-by-side
HAPI Helicopter Approach Path Indicator vs PAPI / APAPI Precision Approach Path Indicator (ATG Airports, distributed by Vardhman Airport Solutions)
Spec comparison for two products on Aviation Souk. Both compete in Runway Lighting & Airfield Electrical.
Runway Lighting & Airfield Electrical
HAPI Helicopter Approach Path Indicator
by Avlite Systems
ICAO, FAA, and STANAG-certified helicopter approach path indicator with patented LED optics, flexible power options, and wireless control for permanent and portable helipad deployments.
Runway Lighting & Airfield Electrical
PAPI / APAPI Precision Approach Path Indicator (ATG Airports, distributed by Vardhman Airport Solutions)
by Vardhman Airport Solutions
Four-unit visual glideslope indicator giving pilots a precise colour-coded approach path signal from final approach to threshold, manufactured by ATG Airports and distributed across South Asia by Vardhman Airport Solutions.
| Cost of ownership | HAPI Helicopter Approach Path Indicator | PAPI / APAPI Precision Approach Path Indicator (ATG Airports, distributed by Vardhman Airport Solutions) |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 0 | 0 |
Specs
Technical specifications.
| Spec | HAPI Helicopter Approach Path Indicator | PAPI / APAPI Precision Approach Path Indicator (ATG Airports, distributed by Vardhman Airport Solutions) |
|---|---|---|
| Compliance | ICAO Annex 14 Vol. 2 HAPI | FAA AC 150/5390-2C | NATO STANAG HAPI | FAA AC 150/5345-28, FAA 880/881, ICAO Annex 14 |
| Power input | 100–240 VAC 50/60 Hz | Solar kit | Generator kit | Battery kit | — |
| Wireless control | 900 MHz FHSS | 2.4 GHz DSSS (both encrypted) | — |
| Wired control | 3-step and 5-step current input | — |
| Wind loading | 100 mph | — |
| Operating temperature | −35 to +55 °C | — |
| Ingress protection | IP55 standard (IP66 with marine upgrade kit) | — |
| IR/NVG output | Available within same optic | — |
| Lens material | Optical glass | — |
| Chassis | Powder-coated aluminium with stainless steel/anodised aluminium hardware | — |
| Configuration | — | 4-unit (PAPI) or 2-unit (APAPI) |
| Unit spacing | — | 9 m |
| Runway edge offset (nearest unit) | — | 15 m |
| Nominal glideslope | — | 3 ° |
| Colour transition band | — | ≤3 minutes of arc |
| Beam width | — | 30° ICAO wide beam |
| Acquisition range (daytime, met vis 7.4 km) | — | 19 km |
| Series circuit compatibility | — | 6.6 A, 8.33 A, 12 A, 16 A, 20 A |
| Voltage transformer options | — | 240 V / 120 V, 50/60 Hz |
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