Counterfeit Air Power: Meet China’s Copycat Air Force

In the 1980s, the U.S. partnered with Israel to develop a new combat aircraft based on the General Dynamics F-16. But as costs rose, the U.S. pulled out of the deal, leaving Israel’s “Lavi” fighter unfinished. Years later American officials discovered that Israel sold the Lavi’s development plans to China, granting them unprecedented access to technologies first developed for the F-16.

https://www.popularmechanics.com/military/aviation/g23303922/china-copycat-air-force/