Wing walking
Starting in airshows and barnstorming during the 1920s, wing walking is the act of moving on the wings of an airplane during flight. The earliest known instance of a wing-walking on a powered aircraft was an experimental flight in England involving a biplane built by Colonel Samuel Franklin Cody in 1911. Cody wished to demonstrate how his Flying Cathedral biplanes had the greatest lateral stability even with a passenger three meters away from the aircraft's center of gravity. The first wing walker to perform daring stunts was 26-year-old Ormer Locklear. Legend has it that he first climbed out onto the lower wings during his pilot training in the Army Air Service during World War I. Undaunted, Ormer just climbed out of the cockpit onto the wings in flight whenever there was a mechanical issue and fixed the problem.
