I may have missed the point, but what is the point? Is it a precurser of things to come for aviation? Only 450lbs is rather dismal. Running engines on Hydrogen isnt a very big deal... What am I missing here?
Alright, figure out what I was missing. The whole first darnned paragraph. Four whole days of flight? That is some cool recon. But wouldn't arial recon be better by using satelites?
You're all missing the point: the US Military are finally making a stride for the Green: put enough of these things in the air to counter the hordes of A1 Abrams out there. Oh, wait...
The solar-powered one that can fly indefinitely (until shot down) seemed a bit more impressive, although that might be smaller - they could probably build a big one too though.
Ah, but did nobody notice that this thing has two Ford four cylinder engines AND an array of hydrogen fuel cells... I'm going to assume that the fuel cells are OK for cruising and powering the various avionics, etc. systems but not up to take-off and climbing to working altitude.
[citation][nom]asjflask[/nom]Great job using hydrogen fuel cells. Millions of dollars gone in a split second when that thing explodes. Not to mention the environmental damage.[/citation]
Ah yes, who but a madman would use a combustible material to fuel a vehicle?