Fly or Die: Dean Potter

On a sunny afternoon in August, Dean Potter stepped onto a tongue of rock just below the summit of Switzerland’s Eiger and jumped off. At first he plunged toward a ledge 600 feet below, then air gathered in his wingsuit, his forward trajectory kicked in, and he began to fly. By the time he pulled his chute and drifted to earth, Potter had spent two minutes and 50 seconds in flight. It was the longest BASE jump ever, covering some 9,000 vertical feet and nearly four miles.