LIBROS DEL AUTOR: united states war depts division of mi

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  • Methods of Obtaining and Transmitting Information by Balloon Service
    United States. War depts. Division of mi
    'Methods of Obtaining and Transmitting Information by Balloon Service' offers a fascinating glimpse into the early days of military aviation and communication technology. Published around 1918, this document from the United States War Department’s Division of Military Aeronautics details the techniques and procedures used for gathering and relaying intelligence via balloon-base...
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