Northrop’s YF-23 team was made up of brilliant engineers,” remembered test pilot Paul Metz, among only a handful of pilots to ...

The YF-23 Black Widow II, the legendary stealth prototype that lost the Advanced Tactical Fighter competition to the F-22, ...

The YF-23 emphasized stealth characteristics: in fact to lessen weight and increase stealth, Northrop decided against using thrust vectoring for aerodynamic control as was used on the Lockheed YF-22A.

-The YF-23 competed in the Advanced Tactical Fighter (ATF) program during the Cold War but lost to Lockheed’s YF-22, which became the F-22 Raptor. The YF-23 was admired for its stealth, speed ...

Northrop Grumman's long-abandoned YF-23A advanced tactical fighter (ATF) is emerging as the possible basis for a surprise contender for the US Air Force's interim bomber requirement.