Update on the J-11B Project.

Recently surfaced photos indicate that the WS-10A turbofan engine is now operational with the J-11B heavy fighter.According to the PLAAF 60th Anniversary Warplane Show, the J-11B conducted its maiden flight on December 2003 and entered service with the 1st PLAAF Fighter Division on December 2007. The initial batch of the J-11B was powered by the imported Russian AL-31F turbofans engine instead