Easily the scariest thing I have done. Secured a camera with 28mm lens and fisheye attachment to the wing. The shutter was fired using a long cable release triggered by squeezing a ball. Vic Norman the pilot did a loop the loop and I squeezed the ball at the top of the loop. When we got down I expected to see the camera showing 36 shots had successfully been fired, and was completely gutted to see just one had gone. Rushed back to the darkroom to process my film, and to my relief this was the result. One frame.