Side-by-side
HAPI Helicopter Approach Path Indicator vs Advanced Visual Docking Guidance System / A-VDGS (RLG Docking Systems, 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
Advanced Visual Docking Guidance System / A-VDGS (RLG Docking Systems, distributed by Vardhman Airport Solutions)
by Vardhman Airport Solutions
A 3D laser-scanning docking guidance system from RLG Docking Systems (Taiwan) that tracks incoming aircraft nose position in real time and displays stopping and azimuth guidance to the flight deck — eliminating the weight and height variables that defeat simpler optical systems.
| Cost of ownership | HAPI Helicopter Approach Path Indicator | Advanced Visual Docking Guidance System / A-VDGS (RLG Docking Systems, 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 | Advanced Visual Docking Guidance System / A-VDGS (RLG Docking Systems, distributed by Vardhman Airport Solutions) |
|---|---|---|
| Compliance | ICAO Annex 14 Vol. 2 HAPI | FAA AC 150/5390-2C | NATO STANAG HAPI | ICAO Annex 14 |
| Power input | 100–240 VAC 50/60 Hz | Solar kit | Generator kit | Battery kit | AC 85–240 V, 50/60 Hz auto-select |
| 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 | — |
| Sensing technology | — | 2-axis laser scanning (3D) |
| Range accuracy (>50 m) | — | ±0.2 m at 150 m |
| Range accuracy (<50 m) | — | ±0.05 m |
| Power consumption | — | <700 W |
| Pilot display — azimuth bar | — | 12-inch, high-visibility |
| Pilot display — distance readout | — | 8-inch alphanumeric |
| Aircraft type coverage | — | All ICAO aircraft types |
| Optional interfaces | — | PBB, GPU, PCA, CCTV, FIS/FOS, SITA AMS |
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