Thats surprising. No offence to any Chinese people that are on the forum, but i thought China was backwards when it came to developing their own planes. Im not sure, but i dont think they have the funding that the US and Europe have, and what Russia had.
And all the Euro/US countries have experience in this kinda thing, where as China dosent...Euro/US know what the need, and they know how to get it, but how does China?