It is obvious that, in accordance with Newton's second law, the lift on an aerofoil must be equal to the vertical momentum communicated per second to the air mass affected. Consequently a lifting aerofoil in flight is trailed by a wash which has a definite inclination corresponding to the factors producing the lift. It is thought that sufficient data, theoretical and experimental, are now available for a complete determination of this wash with respect to the variation of its angle of inclination to the originating aerofoil and with respect to the law which governs its decay in space.


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    Title :

    The Determination of Downwash


    Contributors:

    Publication date :

    1921-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English



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