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 first YF-23, with Pratt & Whitney engines, supercruised at Mach 1.43 on Sep. 18, 1990, while the second, with General Electric engines, reached Mach 1.6 on Nov. 29, 1990. By comparison, the YF ...

The YF-23 had a top speed of 1,451mph to the YF-22’s 1,599mph, but the Northrop design had a longer range and a higher ceiling – 2,796 miles maximum range and a ceiling of 65,000 feet.

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.

The YF-23 had a greater flight range, giving the fighter the potential to strike much further targets. The F-22 Raptor had a more conventional design and more effective program management, and was ...

The YF-23, arguably far more futuristic looking than the F-22, never made it to production, but the two prototypes still exist, and one of them is in Torrance at the Western Museum of Flight.

Northrop's YF-23 was first to fly, spending 15 minutes in the air on August 27, 1990. Lockheed's YF-22 was unveiled on August 29 and flew for the first time a month later.

The Lockheed YF-22 and Northrop YF-23 both met U.S. Air Force requirements for the Advanced Tactical Fighter. Credit: U.S. Air Force Military aircraft competitions are decided by more than just ...