Precision Approach Path Indicator (PAPI)

Precision Approach Path Indicator (PAPI)

Precision Approach Path Indicator (PAPI) and Abbreviated PAPI (APAPI) lights provide pilots with a safe and accurate glide slope on the final approach to the runway.

A PAPI aviation light system uses a row of light housing assemblies (LHAs) placed perpendicular to the airport’s runway approach path. Pilots can easily determine if their approach is too high, too low or correctly on-slope through combinations of red and white lights. Flash PAPI/APAPI lights are available in 3 basic models with multiple configuration options to meet ICAO, FAA and STANAG requirements.


  • Permanent runways
  • Temporary runways
  • Emergency runways
  • Military & NVG operations

Easy Installation

PAPI lights work equally well in permanent or temporary locations. Permanent mounting is easy with standard frangible mounting. Temporary deployment is fast with retractable legs and a lightweight, compact form factor.

Advanced Optics

Flash’s PAPI system and the abbreviated PAPI (APAPI) use patented, LED-based optics to achieve the lowest power consumption, highest intensity and sharpest white/red transition. They exceed ICAO, FAA and STANAG requirements to provide a clear approach path to the aviator.

Power Supply Versatility

The low power consumption of the PAPI light system makes it mate well with several available power supplies:

  • Solar kit
  • Generator kit
  • Battery kit
  • AC only


Optional wireless control provides remote operation using either 900 MHz or 2.4 GHz communication. There is also 3 and 5-step wired control and local control available.

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