Author as long ago as 1907 not only visualized advantages of contra-rotating propeller or as he termed them "coaxial propellers with reverse rotation," but patented form of drive, details of which are given; suggestions for further research.


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    Title :

    Contra-props


    Additional title:

    Flight


    Contributors:

    Published in:

    Flight ; 40 , n 1720


    Publication date :

    1941


    Size :

    2 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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