FAA LIGHTNING PROTECTION REQUIREMENTS FOR MARK III INSTRUMENT LANDING SYSTEM (CATEGORY III)

The withstand capabilities and protection requirements for solid state circuits of the Mark III Instrument Landing System (Cat. III) susceptible to lightning-induced transients on buried control cables are presented. Susceptible circuits and components were identified from the wiring diagrams as transistors, diodes, relay contacts, and electrolytic capacitors. Withstand capabilities of each circuit were determined analytically and experimentally using manufacturer's data and a 1000-volt, 10 x 1000 microsec test waveform. Avalanche diode surge protectors and series resistance are recommended to protect susceptible circuits from lightning-induced transients on buried control cable conductors connected to the circuits.

  • Corporate Authors:

    Rome Air Development Center

    Griffiss Air Force Base
    Rome, NY  USA 

    Federal Aviation Administration

    Systems R&D Service, 800 Independence Avenue, SW
    ,   USA 
  • Authors:
    • Huddleston, G K
    • Bush, G G
  • Publication Date: 1975-2

Media Info

  • Pagination: 195 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00091537
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: Final Rpt.
  • Contract Numbers: DOT-FA72WAI-356
  • Files: NTIS, USDOT
  • Created Date: Aug 13 1975 12:00AM