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.

YF-23 Demonstrator Performed Better. The YF-22 was a little faster at around 1,600 miles per hour, while the YF-23 prototypes ...

YF-23: The Stealth Fighter That Never Was. In 1986, the Air Force awarded Lockheed Martin and Northrop Grumman development deals, offering each team 50-months to build and demonstrate a prototype.

If pushed, could the YF-23 have kept up with the YF-22? It’s very possibly. But we’ll never get an answer. About the Author: Harrison Kass. Harrison Kass is a prolific defense writer with over ...