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A year after Johnson's flight in the RJ-5, Leonard A. Niemi started developing the Sisu 1. Neimi had spent four years learning the aircraft mechanics trade while attending a technical high school in Buffalo, New York, followed by another 6 years working for the Bell Aircraft Corporation and the Curtiss-Wright Corporation, Airplane Division. After a stint in the U. S. Army, Niemi attended the Unive
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