1. 1McFarland, M. W., The Papers of Wilbur and Orville Wright, 1st ed.McGraw-Hill, New York, 1953, pp.255-335.
2. An experimental and analytical evaluation of the 1911 Wright bent end propeller
3. 5McCormick, B. W., Aerodynamics, Aeronautics, and Flight Mechanics, 2nd ed.Wiley, New York, 1995, pp.141-145.