Minimum noise annoyance trajectories for developing STOL operation procedures are obtained by modulating five control variables in two dimensions. The performance index is formulated such that it explicitly assigns the same relative importance to thrust as it does to distances between discrete listeners and the aircraft. However, using a steepest descent optimization program, results indicate that it is preferable to keep the thrusters at their maximum value to minimize the integrated annoyance rather than to reduce thrust which would lower the instantaneous annoyance. Thrust decreases below its bound only when the instantaneous noise at a listener is limited.


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    Title :

    Maximum noise abatement trajectories.


    Contributors:
    Zeldin, S. (author) / Speyer, J. (author)

    Conference:

    American Institute of Aeronautics and Astronautics, Fluid and Plasma Dynamics Conference ; 1972 ; Boston, MA


    Publication date :

    1972-06-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


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