The Besler Steam Plane

A Travel Air 2000 biplane made the world's first piloted flight under steam power over Oakland, California, on 12 April 1933.
The strangest feature of the flight was its relative silence; spectators on the ground could hear the pilot when he called to them from mid-air.
The aircraft, piloted by William Besler, had been fitted with a two-cylinder, 150 hp reciprocating engine.
An important contribution to its design was made by Nathan C. Price, a former Doble Steam Motors engineer.

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