Great analysis i love it...ans these few questions 1 but why pakistan was in talk with russia to buy su 35 if jf17 has such features...(the same janes.com wikipedia and sputnik.com had qouted ) 2 why they said we need twin engine stealth fighter like su 35 that can penetrate deeper into enemys territory 4 why pakistan is in talks with china to buy j31 if we can convert jf into 5th generation stealth fighter 5 is jf is an airsuperiority fighter 6 why does china not use it 6 why cant we make it a carrier supported aircraft 7 why cant we make it into twin engine thrust vectoring fighter so that no more cost on further import