Results already achieved with sonic altimeters discussed in light of theoretical possibilities of such instruments; from information gained in this investigation, procedure is outlined to determine whether or not further development program is justified by value of sonic altimeter as aircraft instrument.


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    Title :

    Sonic altimeter for aircraft


    Additional title:

    Nat Advisory Committee Aeronautics -- Tech Notes


    Contributors:


    Publication date :

    1937


    Size :

    98 pages


    Remarks:

    23 plates, Bibliography


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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