Boeing Begins Building Phantom Eye Hydrogen-Powered HALE Demonstrator
Green Car Congress
MARCH 9, 2010
The Boeing Company has begun to build Phantom Eye—its first unmanned, liquid-hydrogen powered, high-altitude long-endurance (HALE) demonstrator aircraft. The propulsion system included a multi-stage turbocharged internal combustion engine and its associated subsystems. Tags: Brief. and in Seattle. Boeing photo.
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