What is this? The robust twin nose wheel gear points to a carrier aircraft, not to a cheap LO fighter for Pakistan. The main task of 16 and its kind will be the defense of a naval fleet with its AEW and ASW and anti-ship missile carrying aircraft, the whole defended by dedicated fighters. I think "J-31" might be that fighter, while J-15 will be the striker. This aircraft will only carry AA ordnance and have as much fuel as possible. No compromises for anything else, very different from F-35.