His father, Henry Cayley, was a distant cousin of Sir George Cayley the aeronautics engineer innovator, and descended from an ancient Yorkshire family.
These engines may be based on a number of thermodynamic cycles encompassing both open cycle devices such as those of Sir George Cayley and John Ericsson and the closed cycle engine of Robert Stirling.
The National Helicopter Museum traces the evolution of the rotary wing from early predecessors like the boomerang and Chinese tops to designs by Leonardo da Vinci and George Cayley to early motorized experiments to modern helicopters of today.
George Cayley was the first to build a working model in 1807.
The cabinets now display items such as a model of George Cayley's original flying machine and an early steam car model by Sir Edward Harland.
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