The derivation and evaluation of an automatic flight trajectory synthesis algorithm is described. The algorithm can generate both time-free and time-fixed fuel-optimal cruise trajectories. The algorithm is based on a regularly perturbed optimal control formulation of cruise at constant altitude. Complicating effects such as winds aloft, off nominal ambient temperatures and engine losses are embedded in the dynamic model using a regular perturbation approach. It is shown that by including the weight dynamics in the system formulation, the performance of the algorithm is improved.


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    Title :

    Approach to on-Board Optimization of Cruise at Constant Altitude


    Contributors:

    Publication date :

    1989


    Size :

    52 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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