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.
Approach to on-Board Optimization of Cruise at Constant Altitude
1989
52 pages
Report
No indication
English
Optimization of cruise at constant altitude
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