This report presents the results of flight tests of a stiff-in-plane flexbeam hingeless four-bladed main rotor, hereafter referred to as the Model 609. The tests were conducted on a modified UH-1 at gross weights from 10,000 to 14,000 pounds and at level-flight speeds up to 150 knots to evaluate performance, handling qualities, maneuverability, and load levels. The tests also evaluated a focused pylon system designed for isolating rotor vibrations. (Modified author abstract)


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    Title :

    Flight Test of a Hingeless Flexbeam Rotor System


    Contributors:

    Publication date :

    1974


    Size :

    214 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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