Wind-tunnel tests are reported of six 3-blade 10-foot propellers operated in front of a liquid-cooled engine nacelle. The propellers were identical except for blade airfoil sections, which were: Clark y, R.A.F. 6, NACA 4400, NACA 2400-34, NACA 2rsub200, and NACA 6400. The range of blade angles investigated extended for 15 degrees to 40 degrees for all propellers except the Clark y, for which it extended to 45 degrees. The results showed that the range in maximum efficiency between the highest and lowest values was about 3 percent. The highest efficiencies were for the low-camber sections.


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    Titel :

    The Aerodynamic Characteristics of Six Full-Scale Propellers Having Different Airfoil Sections


    Beteiligte:

    Erscheinungsdatum :

    01.01.1939


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch



    Aerodynamic characteristics of six full-scale propellers having different airfoil sections

    Biermann, D. / Hartman, E.P. | Engineering Index Backfile | 1939



    Aerodynamic characteristics of four full-scale propellers having different plan forms

    Hartman, E.P. / Biermann, D. | Engineering Index Backfile | 1938



    Aerodynamic characteristics of four full-scale propellers having different plan forms

    Hartman, E.P. / Bierman, D. | Engineering Index Backfile | 1938