sinosoldier, you really have no clue what you are talking about. It's clear that J-15's airframe has to be closer to Su-33 than the original J-11. After all, J-11B basically uses the same airframe as Su-27. Now, I have my doubts about SAC projects and their ability to deliver all these rumoured projects. After all, they developed J-11BS which was originally rumoured to be a fighter bomber, but turned out to be just a twin-seater like Su-27ubk. And now they have this new J-16 project for that role, which hasn't even started.