Saturday, March 7, 2009


1809-Sir George Cayley builds a man-sized version of his glider with a wing surface of 300 feet. An assistant makes a few tentative hops in the air, holding onto the fuselage.

Sir George Cayley begins to publish On Aerial Navigation, a three-part article which appeared in Nicholson’s Journal of Natural Philosophy. It is a milestone and for the first time defines the three elements required by an aircraft — lift, propulsion, and control.

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