A wind tunnel investigation was conducted in which independent, steady state aerodynamic forces and moments were measured on a 2.24 m diam. two bladed helicopter rotor and on several different bodies. The mutual interaction effects for variations in velocity, thrust, tip-path-plane angle of attack, body angle of attack, rotor/body position, and body geometry were determined. The results show that the body longitudinal aerodynamic characteristics are significantly affected by the presence of a rotor and hub, and that the hub interference may be a major part of such interaction. The effects of the body on the rotor performance are presented.


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    Title :

    Rotor/Body Aerodynamic Interactions


    Contributors:
    M. D. Betzina (author) / C. A. Smith (author) / P. Shinoda (author)

    Publication date :

    1983


    Size :

    39 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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