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 ...
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 ...