FAA LIGHTNING PROTECTION STUDY: LIGHTNING PROTECTION REQUIREMENTS FOR AN/GRN-27(V) INSTRUMENT LANDING SYSTEM

The withstand capabilities and protection requirements for solid state circuits of the AN/GRN-27 (V) Instrument Landing System 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 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.

  • Supplemental Notes:
    • See also AD-781 319.
  • 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 

    University of Georgia, Experiment

    Georgia Experiment Station
    Experiment, GA  USA 
  • Authors:
    • Huddleston, G K
    • Nordgard, J D
    • Larson, R W
  • Publication Date: 1974-4

Media Info

  • Pagination: 120 p.

Filing Info

  • Accession Number: 00080265
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: Final Rpt.
  • Contract Numbers: DOT-FA72WAI-356
  • Files: NTIS, USDOT
  • Created Date: Jan 29 1975 12:00AM