The YF-23 was stealthier and faster than the YF-22 in all the tests the Air Force did where they matched these birds against each other. The YF-23 was a marvel of engineering.

The YF-22 and Pratt & Whitney's YF119 engine were selected by the Air Force as winners of the ATF in April 1991. Low-rate initial production of the fighter, designated the F-22 Raptor, ...

The YF-22 “Lightning II” was simply better in a dogfight, and that was enough to convince the Air Force that it would be the better of the two. In the end, it wasn’t that the YF-23 was a bad ...

The FY-23 was very evenly matched with the YF-22. While the YF-23 had a top speed of 1,451mph to the YF-22’s 1,599mph, the Northrop design had a longer range and a higher ceiling – 2,796 miles ...

The YF-22 and YF-23 in formation. (Image credit: National Museum of the United States Air Force) About the Lockheed Martin F-22 Raptor. The ATF (Advanced Tactical Fighter), the program that would ...

Its earliest roots trace four decades ago when the Air Force was looking for a replacement for the F-15. Fast-forward a decade, and the YF-22 prototype is up in the air. Add another seven years ...

The distinctive, rhomboid-winged YF-23A lost out to Lockheed Martin's YF-22 in the ATF competition in 1991, but proved a valuable technology testbed for Northrop Grumman, which gave it all-aspect ...

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 ...

It took 4 years and over 10,000 hours of volunteer work to get the YF-16 #72-01568 to its original appearance. On Saturday, June 1, 2024, the Fort Worth Aviation Museum unveiled the second YF-16 ...