Runway Alignment Indicator Lights (RAIL)

FAA AC 150/5345-51 (Current Edition)

FAA Engineering Brief No. 67 (Current Edition)

Transport Canada TP312 5^th Edition

[TVOC] TP312 REILS + ODALS + SSALR, LED Rev 10-30-25

[CoC] L-849(L) 84 Series – Styles A,C,E Runway End Identification Light_Rev 12-17-2025

Use of sequential flashing lights provide pilots a visual transition from instrument flight to visual flight during landing. The RAIL (Runway Alignment Indicator Lights) are used within an ALSF, MALSF, MALSR or SSALR approach system help the pilot align with the center of the approaching runway threshold.

• Low maintenance costs
• Long-life LED for years of service
• Three Intensities (Low, Medium, High)
• Field Programmable Sequence timing
• Flash Monitoring
• Elapsed Time Meter
• Current or Voltage Driven
• L830-4 100W Isolation Transformers