Simple and exact expressions are given for the efficiency of single and dual rotating propellers with ideal circulation distribution as given by the Goldstein functions for single-rotating propellers and by the new functions for dual-rotating propellers from part I of the present series. The efficiency is shown to depend primarily on a defined load factor and, to a very small extent, on an axial loss factor. Tables and charts are included for practical use of the results.


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    Titel :

    The theory of propellers IV : thrust, energy, and efficiency formulas for single and dual rotating propellers with ideal circulation distribution


    Beteiligte:

    Erscheinungsdatum :

    01.01.1944


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch