An algorithm, based on the energy-state method, is derived for calculating optimum trajectories with a range constraint. The basis of the algorithm is the assumption that optimum trajectories consist of, at most, three segments: an increasing energy segment (climb); a constant energy segment (cruise); and a decreasing energy segment (descent). The algorithm is used to compute minimum fuel, minimum time, and minimum direct-operating-cost trajectories, with range as a parameter, for an in-service CTOL aircraft and for an advanced STOL aircraft. Use of a simplified trajectory increases the fuel consumption of the total descent trajectory by about 10 percent and the time to fly the descent by about 19 percent compared to the optimum.
Optimum flight profiles for short haul missions
American Institute of Aeronautics and Astronautics, Guidance and Control Conference ; 1975 ; Boston, MA
1975-08-01
Conference paper
No indication
English
Optimum flight profiles for short haul missions
AIAA | 1975
|DSpace@MIT | 1966
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