This paper presents results of a flight-test experiment of a UH-1H helicopter encountering the vortex wake of a C-54 airplane. The helicopter was instrumented to record the pilot control inputs, determine the upset experience, and measure critical loads within the rotor system. During the flight-test program 132 penetrations of the vortex wake were made by the helicopter at separation distances from 3/8 to 6-1/2 nautical miles. Test results indicated that the helicopter upsets and the vortex induced blade loads experienced were minimal and well within safe limits. The upsets were very mild when compared to a typical response of a small airplane to the vortex wake of the C-54 airplane.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Flight-test experience of a helicopter encountering an airplane trailing vortex


    Beteiligte:
    Dunham, R. E., Jr. (Autor:in) / Holbrook, G. T. (Autor:in) / Campbell, R. L. (Autor:in) / Van Gunst, R. W. (Autor:in) / Mantay, W. R. (Autor:in)

    Kongress:

    Annual National Forum of the American Helicopter Society ; 1976 ; Washington, DC


    Erscheinungsdatum :

    1976-01-01


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Helicopter Response to an Airplanes Trailing Vortex

    Wayne R. Mantay / G. Thomas Holbrook / Richard L. Campbell et al. | AIAA | 1977


    Gust experience of helicopter and airplane in formation flight

    Crim, A.D. | Engineering Index Backfile | 1954



    A Study of the Interaction between a Wake Vortex and an Encountering Airplane

    Stewart, E. / AIAA | British Library Conference Proceedings | 1993