Dosiero:First-flight.jpg
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First flight: Orville Wright at the controls of the machine, lying prone on the lower wing with hips in the cradle which operated the wing-warping mechanism. Wilbur Wright running alongside to balance the machine, has just released his hold on the forward upright of the right wing. The starting rail, the wing-rest, a coil box, and other items needed for flight preparation are visible behind the machine. December 17, 1903.
English: Early Wright brother’s airplanes explored basic principles of flight. The Wright brothers are widely credited with engineering the first aircraft capable of sustained powered flight.
From: http://lcweb2.loc.gov
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