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    Default Aircraft Detection Before The Invention Of Radar

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    Aircraft Detection Before The Invention Of Radar




    Aircraft Detection Before Radar...

    How air attacks were detected before radar...
    Old time
    acoustic hearing aids






    ACOUSTIC "EARS" BEFORE RADAR - ON A SWIVEL
















    ACOUSTIC "EARS"
    BEFORE RADAR - GERMAN







    ACOUSTIC "EARS"
    BEFORE RADAR - ON WHEELS









    ACOUSTIC "EARS"
    BEFORE RADAR - ENGLAND







    ...being a human...



 

 

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