Minimum-Fuel Cruise at Constant Altitude with Fixed Arrival Time

摘要

Minimum-fuel cruise at constant altitude with a final-time constraint has been analyzed as a singular optimal control problem. The singular arcs and the corresponding optimal paths have been studied as a function of flight time and altitude. The optimal speed law shows, as expected, that longer flight times require smaller Mach numbers and vice versa; in this work, we have been able to quantify this effect, including the influence of cruise altitude.