Ascensional force is derived from small balloon and two horizontal propellers rotating in opposite directions.


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    Title :

    The Oehmichen helicopter


    Additional title:

    L'helicoptere Oehmichen


    Published in:

    Aeronautique ; 3 , n 24


    Publication date :

    1921


    Size :

    2 pages


    Remarks:

    2 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    French


    Keywords :


    Helicopter Oehmichen

    Weiss, E. | Engineering Index Backfile | 1930



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