A family of airfoils, the S407, S409, and S410, intended for a high- altitude, tandem-rotor helicopter has been designed and analyzed theoretically. The two primary objectives of high maximum lift, relatively insensitive to roughness, and low profile drag have been achieved. The constraints on the pitching moments and airfoil thickness have been satisfied.


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    Title :

    S407, S409, and S410 Airfoils


    Contributors:

    Publication date :

    2010


    Size :

    69 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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