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YF-23: Could This Fighter Have Really Replaced the F-22?
Summary: Among aviation enthusiasts, Northrop Grumman's YF-23 has achieved legendary status due to its performance and the fact that only two prototypes were built before the program was discontinued.
National Interest on MSN3mon
YF-23 vs. F-22 Raptor: The Untold Story of the Stealth Fighter Showdown
Two teams competed: Northrop Grumman with the YF-23 and Lockheed Martin with the YF-22, which would become the F-22 Raptor.