Aeronautics was neither an industry nor a science. It was a miracle.

If you are in trouble anywhere in the world, an airplane can fly over and drop flowers, but a helicopter can land and save your life.

At that time [1909] the chief engineer was almost always the chief test pilot as well. That had the fortunate result of eliminating poor engineering early in aviation.

The helicopter appeared so reluctant to fly forward that we even considered turning the pilot's seat around and letting it fly backward.

It would be right to say that the helicopter's role in saving lives represents one of the most glorious pages in the history of human flight.

Aeronautics was neither an industry nor a science. It was a miracle.

It would be right to state that, with the successful flight of the XR-4 in the summer of 1942, the helicopter became a reality in the United States.