US 12587130 B2 / Mar 24, 2026

Method of operating a high altitude long endurance aircraft for maximizing solar capture

Systems, devices, and methods including at least one flight control computer (FCC) associated with at least one UAV, where the at least one FCC is configured to: determine a direction of travel of the at least one UAV relative to the Sun; adjust a UAV airspeed to a first airspeed if the determined direction of travel is towards the Sun; and adjust the UAV airspeed to a second airspeed if the determined direction of travel is away the Sun; where the first airspeed is greater than the second airspeed to maximize solar capture of a solar array covering at least a portion of the UAV.