Boeing 'Phantom Eye'
 

65k ft AGL for four days @ 150 kts...

Richard :munchin

Boeing unveiled its hydrogen-powered Phantom Eye unmanned airborne system during a ceremony in St. Louis on July 12. The demonstrator, which will stay aloft at 65,000 feet for up to four days, is powered by two 2-liter, four-cylinder engines that provide 150 horsepower each. It has a 150-foot wingspan, will cruise at approximately 150 knots and can carry up to a 450-pound payload.

http://www.boeing.com/Features/2010/..._07_12_10.html

An environmentally friendly machine that kills people. Love the irony...

Don't forget the "green" bullets fiasco, turns out they were more harmful than good, not just to those shot by them. :D

One round in those hydrogen tanks and it's sayonara...