Since propeller efficiency becomes less as tip speed approaches sonic velocity and, to increasing extent as flying speed is higher, it is customary to keep tip speed from exceeding 0.85 and 0.95 times sound velocity; formulas given for induced efficiency. (See also Luftfahrtforschung v 15 n 7 July 6 1938 p 334-9; Deutsche Luftfahrtforschung -- Jahrbuch 1938 p I-365-70)


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    Title :

    Prospects of propeller drive for high flying speeds


    Additional title:

    Die Aussichten des Luftschaubenantriebes fuer hohe Fluggeschwindigkeiten


    Contributors:
    Bock, G. (author) / Nikodemus, R. (author)


    Publication date :

    1939


    Size :

    13 pages


    Remarks:

    3 Supp plates, Bibliography


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English




    Prospects of propeller drive for high flying speeds

    Bock, G. / Nikodemus, R. | Engineering Index Backfile | 1938


    Prospects of propeller drive for high flying speeds

    Bock, G. / Nikodemus, R. | Engineering Index Backfile | 1938


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