Numerically calculated time optimal flight paths through vertical wind fields are discussed for different wind field types and airplane classes. For solution types 1 (prefers speed to altitude, globally optimal for small wind fields), the ratio of path oscillation wavelength to up-wind field wavelength was chosen as criterion for global optimization. The most favorable control sequence as well as the most favorable periodic boundary values for the speed components are determined. Calculations on examples for three wind field families and three airplane types with the best reciprocal glide numbers 29, 41, and 55, show that the unstationary type 2 ths for aerodynamically highly sophisticated airplanes with large wing load (water ballast) are more meaningful than for conventional gliders with small wing load.


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    Title :

    Optimal Periodic Dolphin Gliding Flight Optimal Periodischer Delphin-Segelflug


    Contributors:

    Publication date :

    1982


    Size :

    48 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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