An experimental investigation was carried out to determine the effect of subsonic Mach number on the drag characteristics of a high-speed wingless and winged helicopter when equipped with two different rotor head fairings. A simulated unfaired rotor head was provided as a basis for comparison. Test were performed using a 1/9th scale model of a 60,000-pound class helicopter design. Data acquired included gross model force and rotor head force data, wing and pylon surface pressures, and tuft photos.


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    Title :

    Experimental Investigation of High-Speed Rotorcraft Drag


    Contributors:

    Publication date :

    1972


    Size :

    214 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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