The Northrop/McDonnell Douglas YF-23 was an American single-seat, twin-engine stealth fighter aircraft technology demonstrator designed for the United States Air Force (USAF). The design was a finalist in the USAF’s Advanced Tactical Fighter (ATF) competition, battling the Lockheed YF-22 for a production contract.

[youtube https://www.youtube.com/watch?v=iSxYPI_F0ws&w=560&h=315]

La fiche Wikipedia: https://en.wikipedia.org/wiki/Northrop_YF-23