

Flight testing demonstrated both the F-100's promising performance and several deficiencies, which included its tendency of yaw instability and inertia coupling that led to numerous fatal accidents.

The first YF-100A performed its maiden flight on, seven months ahead of schedule. Initially referred to as the Sabre 45, it was delivered as an unsolicited proposal to the USAF in January 1951, leading to two prototypes being ordered one year later following modifications. The F-100 was envisioned during late 1940s as a higher-performance successor to the F-86 Sabre air superiority fighter. The first of the Century Series of American jet fighters, it was the first United States Air Force (USAF) fighter capable of supersonic speed in level flight. The North American F-100 Super Sabre is an American supersonic jet fighter aircraft designed and produced by the aircraft manufacturer North American Aviation. 1979, United States Air National Guard 1988, Republic of China Air Force
