The Northrop YF-23 “Black Widow II,” a prototype stealth fighter, competed against the YF-22 in the U.S. Air Force’s Advanced ...

What actually separates a stealth fighter from the rest: radar cross section, the stealthy power of the engine, or the ...

Losing the competition to develop the successor to its own F-22 presents Lockheed Martin with a challenge and an opportunity: retaining its dominant position in the combat aircraft industry and ...

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.