Side-by-side
Precision Approach Path Indicator (PAPI / APAPI) (Signalight-made) 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
Precision Approach Path Indicator (PAPI / APAPI) (Signalight-made)
by Signalight (Electromax SRL)
ICAO Annex 14-compliant PAPI and APAPI visual glideslope indicators with integrated electronic clinometer, factory-calibrated for precise half-degree angular precision.
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 | Precision Approach Path Indicator (PAPI / APAPI) (Signalight-made) | 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 | Precision Approach Path Indicator (PAPI / APAPI) (Signalight-made) | PAPI / APAPI Precision Approach Path Indicator (ATG Airports, distributed by Vardhman Airport Solutions) |
|---|---|---|
| Configuration | PAPI (4-unit) and APAPI (2-unit) | 4-unit (PAPI) or 2-unit (APAPI) |
| Power consumption | 50 W max per unit | — |
| Power supply — PAPI | 2.8–6.6 A CCR input | — |
| Power supply — APAPI | 110/230 V AC mains | — |
| Angular fault detection | 0.5 ° deviation threshold | — |
| Housing | Powder-coated aluminium RAL 1004, hardened glass diffuser | — |
| LED source | OSRAM red + white with custom optics | — |
| Standard | ICAO Annex 14 Vol. 1, 7th Edition 2016, Fig. A2-23 + §5.3.5.30 | — |
| 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 |
| Compliance | — | FAA AC 150/5345-28, FAA 880/881, ICAO Annex 14 |
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