Sound pressures of first four harmonics of rotation noise from full-scale 2-blade propeller were measured and are compared with values calculated from theory: comparison made for space distribution with constant tip speed, and for fixed space angles with variable tip speed; curves given showing effect of number of blades on rotation noise. (see also Acoustical Soc Am -- J v 12 n 1 July 1940 p 173-82)


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    Titel :

    Propeller rotation noise due to torque and thrust


    Weitere Titelangaben:

    Nat Advisory Committee Aeronautics -- Tech Note


    Beteiligte:
    Deming, A.F. (Autor:in)


    Erscheinungsdatum :

    1940


    Format / Umfang :

    14 pages


    Anmerkungen:

    4 Supp Sheets, Bibliography


    Medientyp :

    Report


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Propeller rotation noise due to torque and thrust

    Deming, Arthur F. | TIBKAT | 1940




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