Before the war ended, Steel Improvement was supplying turbine wheels for four plants operated by General Electric; two plants operated by Allis-Chalmers; and one plant of Ford Motor Company, all producing the turbosupercharger. In the latter years of the war, as newer models of the turbosupercharger were designed, the turbine wheels grew larger and larger until one day, with great secrecy, the officials of the company were told that the newest design was not for a supercharger at all. It was to drive a new kind of aircraft engine that did not require a propeller - the first U.S.-built jet engine.
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| General Electric Wheel Blank | |
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General Electric Bucket Wheel Timken alloy, welded stage |
Turbosupercharger Assembly Arrow shows location of turbine wheels |
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