Fundamental limitations on forward flight speed of compound helicopters are of such nature as to suggest that increases in forward flight speed may be obtained by reducing main rotor rpm and altering basic rotor geometry; reducing rotor rpm to fraction of normal operating rpm allows higher flight speeds as " slowed-rotor" configuration; complete stopping of rotor allows higher flight speeds as "stopped-lifting rotor" configuration; complete stopping of rotor with subsequent in flight blade folding allows higher flight speeds as "folded-rotor" configuration; by assessing several empty weight and fuel weight differences, exhibited by three configurations, optimum speed range for each may be identified.


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    Title :

    Stopped and slow rotor aircraft configurations


    Additional title:

    SAE -- Paper


    Contributors:
    Celniker, L. (author) / Carlson, R.M. (author) / Donham, R.E. (author)

    Conference:

    SAE Meeting ; 1965



    Publication date :

    1965


    Size :

    8 pages


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English


    Keywords :


    Stopped and Slow Rotor Aircraft Configuration

    Celniker, L. / Donham, R. E. / Carlson, R. M. | SAE Technical Papers | 1965


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