FILE - In this Nov. 1, 2016, file photo, a pair of J-20 stealth fighter jets fly at the China's International Aviation and Aerospace Exhibition in Zhuhai, China's Guangdong province. China’s homebuilt J-20 stealth fighter has conducted sea training for the first time, the air force said Wednesday, May 9, 2018. (Chinatopix via AP, File)
FILE - In this Nov. 1, 2016, file photo, a pair of J-20 stealth fighter jets fly at the China's International Aviation and Aerospace Exhibition in Zhuhai, China's Guangdong province. China’s homebuiltShow more

China's J-20 stealth fighter in first sea trials