Emergency locator transmitter (ELT) activation problems were investigated by testing a sampling of ELT units in actual crashes and in a special test apparatus which simulated longitudinal crash pulses with superimposed local structural resonances. The probable causes of excessive false alarms and nonactivation of ELT's during crash situations were determined. Solutions to operational and technical problems were also examined as well as the sensitivity of ELT impact switches to orientation and to local structural vibrations.


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    Title :

    Evaluation of Emergency-Locator-Transmitter Performance in Real and Simulated Crash Tests


    Contributors:

    Publication date :

    1981


    Size :

    32 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English