An experimental investigation of the M85, a High Speed Rotor Concept, was conducted at the NASA Langley 14 x 22 foot Subsonic Tunnel, assisted by NASA-Ames. An unpowered 1/5 scale model of the XH-59A helicopter fuselage with a large circular hub fairing, two rotor blades, and a shaft fairing was used as a baseline configuration. The M85 is a rotor wing hybrid aircraft design, and the model was tested with the rotor blade in the fixed wing mode. Assessments were made of the aerodynamic characteristics of various model rotor configurations. Variation in configurations were produced by changing the rotor blade sweep angle and the blade chord length. The most favorable M85 configuration tested included wide chord blades at 0 deg sweep, and it attained a system lift to drag ratio of 8.4.


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    Titel :

    Low-Speed Wind-Tunnel Test of an Unpowered High-Speed Stoppable Rotor Concept in Fixed-Wing Mode


    Beteiligte:
    M. B. Lance (Autor:in) / D. Y. Sung (Autor:in) / R. H. Stroub (Autor:in)

    Erscheinungsdatum :

    1991


    Format / Umfang :

    53 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Low-Speed Wind-Tunnel Test of an Unpowered High-Speed Stoppable Rotor Concept in Fixed-Wing Mode

    Lance, Michael B. / Sung, Daniel Y. / Stroub, Robert H. | NTRS | 1991


    Horizontal stoppable rotor conversion

    Biggers, J. C. / Watts, G. A. | NTRS | 1971


    Low-speed wind tunnel test results of the Canard Rotor/Wing concept

    Bass, Steven M. / Thompson, Thomas L. / Rutherford, John W. et al. | NTRS | 1993


    Low-Speed Wind-Tunnel Test Results of the Canard Rotor/Wing Concept

    Bass, S. / Thompson, T. / Rutherford, J. et al. | British Library Conference Proceedings | 1993


    Low-speed wind tunnel test results of the Canard Rotor/Wing concept

    BASS, STEVEN / THOMPSON, THOMAS / RUTHERFORD, JOHN et al. | AIAA | 1993