Orville Wright,
Orville Wright diary — 1902
“ Thinking of nothing else than the end control, after assuring myself as to what was the proper motion, I threw the wing tips to their greatest angle. By this time I found suddenly that I was making a descent backwards toward the low wing, from a height of 25 or thirty feet, which fact I had not noticed at all while occupied in the manipulation of the wing ends, but which had been witnessed by Will and Dan with alarm for several seconds before. The result was a heap of flying machine, cloth, and sticks in a heap, with me in the center without a bruise or a scratch. ”
