1799-Sir George Cayley, a baronet in Yorkshire, near Scarborough, England, conceives a craft with stationary wings to provide lift and "flappers" to provide thrust. It also has a movable tail to provide control. So convinced is he that this idea is an earth-shaker, he engraves a drawing of this craft on a silver disk. Cayley is the first to separate the different forces that keep an aircraft in the air, and his engraving is the first recorded drawing of a fixed-wing aircraft -- an airplane.
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