Tag: ski

47 mph on skies with UAV jet engine backpack
March 4, 2011

  This kind of thing clearly isn't for everyone. Hartman, who lives in Mammoth Lakes, Calif., is a professional stuntman who enjoys sky diving and, bungee jumping and other extreme pursuits. The jet pack he uses was built for a rigid sky-diving wing he recently developed for flying after jumping out of airplanes. "I cannot lift off and fly with it by itself," he says of the jet pack. "But I am developing another wing, different from the...