ALSF/SSALR - High-Intensity Approach Lighting System with Elevated Sequenced Flasher System

  • FAA
  • ICAO
  • Non-LED

The ALSF-1, ALSF-2 and ALSF-2/SSALR are approach lighting systems with sequenced flashing lights that are used at airports and military air bases to provide landing approach guidance, such as runway alignment, height perception, horizontal reference and roll guidance extending from the landing threshold outward (2,400-3,000 feet) into the approach zone.


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