The results are summarized of a study to develop a versatile research aircraft for flight testing a wide variety of advanced helicopter and compound rotor systems. The aircraft is required to accept these rotors with minimal changes in the basic vehicle. Rotors envisioned for testing include conventional rotors plus variable geometry, variable twist, variable diameter, coaxial, jet flap, circulation control, and slowed rotors. Various disc loadings would be accommodated. The aircraft must be configured to measure performance more accurately than past test vehicles. In addition, the aircraft would have a wing to off load the rotor while measuring performance during lightly loaded conditions. It would have variable drag and propulsive force so that the rotor can be tested while producing different values of horizontal force. (Author)


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    Title :

    Rotor Systems Research Aircraft of Predesign Study. Volume 1 Summary and Conclusions


    Contributors:

    Publication date :

    1972


    Size :

    28 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English