In combat aviation, the US is considered the undisputed leader of stealth technology. The US has developed not one but four stealth aircraft: the F-117 Nighthawk, the B-2 Spirit bomber, the F-22 Raptor, and the F-35 Lightning II, before China developed the J-20 Mighty Dragon, its first stealth fighter jet. Meanwhile, Russia has had to … Continue reading Russia’s “Secret Role” Behind U.S. Stealth Fighter: How Pyotr Ufimtsev’s Math Powered American Nighthawk