The surest sign that Stanley Hiller Jr. was just a kid when he designed the first helicopter to fly successfully in the Western United States was the field on which he chose to test it in 1944: the football stadium of UC Berkeley. A novice helicopter pilot, he learned to fly the bright-yellow contraption dubbed the Hiller-copter while it was anchored to several cars. He wore what might pass for safety gear among 19-year-olds: a T-shirt and slacks.