What You Need to Know: The Northrop YF-23, nicknamed “Black Widow II,” was a stealth fighter prototype developed in the late 1980s and early 1990s as part of the U.S.... What You Need to Know ...

The YF-23 was the main competitor to the legendary F-22 Raptor, or at the time YF-22,in a contest to create the future air ...

Summary and Key Points: The Northrop/McDonnell Douglas YF-23 was a formidable contender ... and unofficially nicknamed ...

Northrop built two YF-23A prototypes: the first YF-23 (serial number 87-0800), Prototype Air Vehicle 1 (PAV-1), was rolled out on 22 Jun. 1990 and took its 50-minute ...