Over one million hours of aircraft flight test data for loading factors in excess of 0.5 g were analyzed using three different methods in order to model coherent atmospheric turbulence. The Houbolt method (using a rigid body with two degrees of freedom for the aircraft flight mechanics) is found to provide a better description of the atmosphere than either the Pratt method (in which turbulence values are obtained from the vertical acceleration of the aircraft) or the Hall method (using only a single degree of freedom for the aircraft motion). The Houbolt method is improved by a calibration using exact calculations for a small number of different aircraft configurations.


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    Title :

    Description de la Turbulence Atmospherique (Description of Atmospheric Turbulence)


    Contributors:
    P. Hutin (author)

    Publication date :

    1989


    Size :

    14 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English