The YF-23 was Northrop’s radical stealth fighter prototype, built to dominate the skies—but despite being faster and stealthier than the YF-22, it ultimately lost the contract. Featuring ...

Two teams competed: Northrop Grumman with the YF-23 and Lockheed Martin with the YF-22, which would become the F-22 Raptor.

Chief configuration designer for the YF-23, Northrop’s contender for the Air Force’s Advanced Tactical Fighter (ATF) competition won by Lockheed’s F-22, Cummings continues to be active in ...