The report presents the technical status of the rotor/wing concept of a stopped-rotor helicopter configuration. The configuration presents attractive performance characteristics for a high-speed VTOL aircraft. The ability to predict aerodynamic performance characteristics in all flight modes is substantiated by wind-tunnel tests. A major technical problem of 3-per-rev oscillating loads on the rotor/wing pylon was minimized by the effective use of cyclic blade pitch during the high-advance-ratio portion of conversion. High values of oscillating blade-root moments were recorded during testing of a dynamic model. It is not known if there is a schedule of cyclic pitch that will minimize both pylon loads and blade-root loads simultaneously. (Author)


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    Titel :

    Rotor/Wing


    Beteiligte:
    F. J. Briardy (Autor:in) / S. V. LaForge (Autor:in) / J. R. Neff (Autor:in)

    Erscheinungsdatum :

    1970


    Format / Umfang :

    79 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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