Boeing's hydrogen-powered Phantom Eye UAV completed its maiden autonomous flight, staying aloft for 28 minutes, though it experienced a rough landing that damaged its gear.
The UAV aims to achieve continuous flight for four days, reaching altitudes up to 65,000 feet, without using traditional fuel.
Its unique liquid-hydrogen propulsion system provides fuel-efficiency and produces only water as a byproduct.
Boeing’s hydrogen-powered Phantom Eye UAV made its maiden autonomous flight last Friday, staying aloft for 28 minutes after taking off from Edwards Air Force Base in California.
During the flight, Phantom Eye reached an altitude of just over 4,000 feet and a cruising speed of 68 knots before coming in for a rough landing that broke the landing gear when it dug into the lakebed.
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