china tested Stealth Fighter J-20 prototype in chengdu with latest AESA radar mounted .

China has test flown another prototype stealth fighter J-31 on Wednesday ,
aviation experts said Thursday, in a sign of its aircraft industry's
growing sophistication. china is now the one of only two countries in
world that has the ability to develop two stealth fighters at the
same time ,the another country is America.

its estimated that the smaller J-31 is built for a
fighter-interceptor role, while the heavier J-20 would target
airfields, warships and other ground targets