The report describes results of a feasibility study concerning solar powered High Altitude Long Endurance (HALE) Unmanned Aerial Vehicles (UAV). The high altitude concept was examined in order to allow the vehicles to operate above commercial air traffic.
The study also produced possible solutions for different flight altitudes and payload requirements. It has been prepared in a cooperation of several DLR institutes, reflecting their specific know-how.
A range of feasible solutions for fixed-wing aircraft as well as airships under different requirements (altitude, payload, velocity) have been examined. Conceptual design and analysis tools were applied to size plaforms
