The effects of lightning on a Digital Fly-By-Wire (DFBW)aircraft control system were investigated. The aircraft was a NASA operated F-8 fitted with a modified Apollo guidance computer. Current pulses similar in waveshape to natural lightning, but lower in amplitude, were injected into the aircraft. Measurements were made of the voltages induced on the DFBW circuits, the total current induced on the bundles of wires, the magnetic field intensity inside the aircraft, and the current density on the skin of the aircraft. Voltage measurements were made in both the line-to-ground and line-to-line modes. Voltages measured at the non-destructive test level were then scaled upward to determine how much would be produced by actual lightning. A 200,000 ampere severe lightning flash would produce between 40 and 2000 volts in DFBW circuits. Some system components are expected to be vulnerable to these voltages.


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    Titel :

    Lightning effects on the NASA F-8 digital-fly-by-wire airplane


    Beteiligte:
    Plumer, J. A. (Autor:in) / Fisher, F. A. (Autor:in) / Walko, L. C. (Autor:in)

    Erscheinungsdatum :

    01.03.1975


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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