Designed for a duration of four days at 65,000 feet. The first flight was just 28 minutes and it sustained damage on landing, but otherwise the mission was a success. ]UPDATE: This was a year ago, sorry for missing that. It's taken several flight since then]
Boeing's unmanned aircraft, Phantom Eye, completed its first take off and landing June 1. The autonomous aircraft, with its 150-foot wingspan and powered by energy-efficient liquid hydrogen, lifted off its launch cart and climbed to an altitude of 4,080 feet into the desert sky above Edwards Air Force Base, Calif.