Back in the early days of aviation an interesting career emerged of Wing Walking. That was where a pilot or passenger of a biplane would leave the safe confines of the cockpit and walk around on the wing, sometimes doing other stunts while on the wing. In the early days they did not wear a parachute, and had no other forms of safety gear or harnesses. Pictured above is Gladys Ingle, one of the most fearless of the wing walkers. In this photograph she is preparing to transfer in midair from the wing of one airplane to another. Below is a short video clip of her taking a wheel up and repairing a disabled plane in flight.
Interestingly, Gladys lived to the ripe old age of 82, and died in 1981. Wow, would it not have been interesting to get to sit down and talk to her in her old age?