1904
Whitehead attended the St. Louis World's Fair in 1904 and displayed an aeronautical motor. His work with the "Aeroplane" was included in the book, Modern Industrial Progress, released in late 1904 by Charles Henry Cochrane. The book described Whitehead as one of the "latest of the enthusiasts in the soaring field" who had devised several "soaring apparatuses". Cochrane said Whitehead's "plane" used a "four-sided rudder" for steering and a 12 horsepower motor.
Cochrane also wrote that the Wright brothers made the first successful flight in a powered aircraft without the use of a gas-bag or balloon, outdoing all the other soarers and gliders to date. He went on to say that he hoped that there would not be a delay in the development of the airplane due to patent disputes or quarrels over who invented this or that.
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