The design philosophy for a free-flying vehicle powered by a ducted propeller is presented from an aerodynamic viewpoint. Airframe design concentrates on duct inlet lip curvature, diffuser angle, and methods of vehicle control. Wind tunnel test results are given to evaluate two inlet designs, two exit designs, and the effect of external appendages such as a camera pod or a forebody. Finally, a simple, analytic method of ducted propeller blade design is presented and the results compared with an existing ducted propeller blade. 14 refs., 28 figs., 2 tabs. (ERA citation 13:048909)


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    Title :

    Aerodynamic Design Considerations for a Free-Flying Ducted Propeller


    Contributors:
    R. J. Weir (author)

    Publication date :

    1988


    Size :

    32 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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