it is not about J-11, though do u mean to say by above post that the Chinese have surpassed the Russians in the Fighter planes technology....!!... to copy is something else, to produce performance is smthng else....
and then havent the Russians upgraded their planes..??? if you can first copy their plane after decades and claim to improve it then Russians were already working for all those decades on more advanced things...
Nobody is saying that Chinese have surpassed Russians.
What I'm simply saying is that J-11B is superior to any flanker variant that Russia has supplied to China.
So basically, Chinese took Su-27SK and upgraded it to make it better than Su-30MKK2.
If J-11B is nothing but a simple copy, then China would still be relying on Russia to supply MKK2 for advanced planes.
And for your information, it did not take the Chinese decades to produce J-11B.
The original contract for the basic J-11 was signed in 1996. Production of the basic model stopped in 2004 to make way for J-11B (that's 8 years) - so it's not even 1 decade let alone the "decades" you keep mentioning.
could u provide inputs for why is the copied J-15 is better then the Russian Su-33..????
Nobody knows the capabilities of the J-15 and nobody is saying that J-15 is better.
However you can make a few reasonable assumptions and come to the conclusion that J-15, at the very least, will not be inferior to Su-33.
Su-33 was designed in the early 80's and entered service in the mid 90's i.e. when Russia was bankrupt. It is reasonable to assume that no upgrades/improvements were made during this period. Even now, as Russia is starting to become strong it is not looking to upgrade these but to replace them with MiG-29K as the primary carrier-based fighters or possibly even a Su-35 derivative.
Even the MKK2 is more advanced than Su-33, and China has already bettered that with J-11B.
China might have problems adapting a plane for carrier operations since it has little experience in this field, other than that there is no reason why J-15 should be inferior to Su-33.