China's J-20 Stealth Fighter: Copied From Russia?

J-20: What Did China Learn from Russia's MiG 1.44 Stealth Fighter Program?- It’s not uncommon to hear people citing China’s theft of American F-22 and F-35 plans as inspiration for its J-20 stealth fighter, but Russia has also raised suspicions about China borrowing heavily from one of its own defunct fighter efforts.

The Chengdu J-20 Mighty Dragon is China’s first 5th generation fighter, with roots dating back to the nation’s J-XX program that began in the late 1990s. By 2008, some 11 years after the F-22 Raptor’s first flight...