Full-scale measurements of shaft thrust and torque were made. Wind-tunnel speeds and blade angles were set for full-scale flight conditions. Excellent quality measurements were obtained of the thrust coefficient, the power coefficient, and the propeller efficiency for various values of the advance ratio and the blade incidence angle at 3/4-blade radius. A conventional propeller theory found in the literature was applied to the present results. Although thrust, power, and efficiency were somewhat overpredicted, the advance ratio for maximum efficiency was predicted quite accurately. It was found that, for some conditions, spinner drag could be significant. A simple correction that was based on the spinner base pressure substantially accounted for the changes in efficiency that resulted from this cause.


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    Titel :

    Full-Scale Aerodynamic Characteristics of a Propellar Installed on a Small Twin-Engine Aircraft Wing Panel


    Beteiligte:
    P. R. Barlow (Autor:in) / V. R. Corsiglia (Autor:in) / J. Katz (Autor:in)

    Erscheinungsdatum :

    1981


    Format / Umfang :

    22 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch








    Propeller Airframe Aerodynamic Interference on Twin Engine Aircraft

    Derishev, S.G. / International Council of the Aeronautical Sciences | British Library Conference Proceedings | 2000