The jetpack in question only has enough fuel (mostly hydrogen peroxide converted to water) for about 30-40 seconds of flight, so even though he claims the jetpack achieves about 800 horsepower, he only gets up to 61 MPH. Still, that's far faster than we would have thought, given Mark's experience, but evidently this is an entirely different kind of jetpack. [MAKE]

The jet pack debuted last year, but this has been the first time that it has been used in such a risky stunt, with no safety measures whatsoever for the pilot. It's based on a military design made by Bell Aerosystems back in the sixties. That model wasn't good because it was too heavy, so the people at Jet Pack International—where Eric works—redesigned it using carbon fiber technology.

The result is a jet pack that weights a lot less and, therefore, has more range although not that much: About 33 seconds vs 20 seconds of the old model. I don't know about you, but making a jump over a gorge like this with just 12 seconds of overhead doesn't seem like a lot of fun to me. [Jetpack International via Denver Post and Sky NEws]