In a recent paper in Soaring, C.A. Moeller proposed a method for determining the performance of a sailplane by recording the deceleration history of the craft following a steep dive. The advantage claimed for this method was that it would allow performance testing to be done in relatively quiescent air near the ground. It would thus be possible to eliminate the errors and uncertainties associated with conventional testing procedures, by avoiding the effects of the extraneous air currents which exist at altitude. Unfortunately, however, deceleration evaluation technique necessarily involves unsteady aerodynamics, and is thus itself subject to certain inherent error source of unknown magnitude.


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    Title :

    The Induced Drag of A Decelerating Airfoil


    Contributors:

    Publication date :

    1961-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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