Hydrogen-Fueled UAV Begins Flight Tests

http://www.aviationweek.com/aw/generic/story_generic.jsp?channel=awst&id=news/awst/2010/08/16/AW_08_16_2010_p42-246255.xml


The Global Observer (GO) is flying from Edwards AFB, Calif., where it will undergo an operational utility assessment under a joint concept technology demonstration (JCTD) sponsored by several U.S. agencies and led by Special Operations Command. The initial GO-1 aircraft is designed to stay aloft for seven days at up to 65,000 ft. carrying a 400-lb. payload.

The aircraft reached almost 4,000 ft. on its Aug. 5 first flight and conducted a series of maneuvers, including climbs and turns. After battery-powered flights to expand the envelope, the Global Observer will begin using hydrogen fuel.


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