The helicopter is probably the most versatile instrument ever invented by man. It approaches closer than any other to fulfillment of mankind's ancient dreams of the flying horse and the magic carpet.
Igor SikorskyAccording to recognized aero technical tests, the bumblebee cannot fly because of the shape and weight of his body in relation to the total wing area. The bumblebee doesn't know this, so he goes ahead and flies anyway.
Igor SikorskyThe helicopter appeared so reluctant to fly forward that we even considered turning the pilot's seat around and letting it fly backward.
Igor SikorskyAt 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.
Igor Sikorsky