Design study for remotely piloted, high-altitude airplanes powered by microwave energyA design study has been conducted for unmanned, microwave-powered airplanes that must fly with long endurance at high altitude. They are proposed to conduct communications-relay, observation, or various scientific missions above approximately 55,000 feet altitude. The special characteristics of the microwave-power system and high-altitude, low-speed vehicle are reviewed. Examples of both sizing and performance analysis are used to suggest design procedure guidelines.
Morris, C. E. K., Jr. (NASA Langley Research Center Aeronautical Systems Office, Hampton, VA, United States)