The Rotor Systems Research Aircraft (RSRA) is a compound helicopter that was test flown as a fixed-wing aircraft, with the main rotor blades removed and the rotor hub installed. An onboard rotor load-measurement system measured the resulting rotor hub drag and lift. Measured hub drag and lift are plotted for comparison to that predicted by full-scale and 1/6-scale model wind-tunnel tests. The success of the demonstration gives confidence that planned improvements to the RSRA will allow high-accuracy hub drag and lift measurements to be made in flight on a routine research basis.


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    Title :

    In-flight measurement of rotor hub drag using the RSRA - A feasibility demonstration


    Contributors:

    Publication date :

    1985-09-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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    Flight testing the Rotor Systems Research Aircraft (RSRA)

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    Flight Testing the Rotor Systems Research Aircraft (RSRA)

    Hall, G. W. / Merrill, R. K. | NTRS | 1983