Altitude measurement and direction finding by acoustical methods; inadequacy of barometric altimeter; different methods of measuring altitude; causes of errors in acoustical methods; various systems discussed; new type of acoustical apparatus consisting of transmitter, receiver and chronograph; results of tests on airships, seaplanes and airplanes; utilization at airports for guidance of pilots. (See also - discussion p 490)


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    Title :

    Sondage aerien et balisage des aeroports par signaux acoustiques


    Additional title:

    Sondage aerien et balisage des aeroports par signaux acoustiques


    Contributors:
    Dubois, R. (author)


    Publication date :

    1933


    Size :

    21 pages


    Type of media :

    Report


    Type of material :

    Print


    Language :

    French