Han and revealed that China established in 2000 to accelerate the localization of F -11 fighter, the J-11B fighter, based on the further development of the two-seat combat trainer F-11BS (Chinese version of Su-27UBK), Navy carrier-based J-11BH fighter program.

Although the Chinese J-11B fighter jet in Russia appears to be "cloned" or "imitation", but the Chinese side believes that "it is to adapt to China's own operational environment of aircraft innovation."

Han and that the family of the Chinese imitation Su -27 fighter project, not merely to stay in the J-11B fighter basic stage, but a whole system of generic engineering.

Han and that the current J-11BS China appears to enter the flight trainer battle phase, if successful imitation, the F-11BS as a new platform, it is bound may also evolve into China's own multi-purpose fighter, reconnaissance, electronic warfare unit and so on.

Han and added that the completion of China's Soviet-27UBK imitation combat trainer, the will on this basis, the tandem cockpit converted into parallel, and then evolved into the Chinese "clone" version of the Su--34. These wind tunnel tests, the radar have begun testing the working environment.