Everything starts from something. There are people who say that American space capability exited in the 60's due to German's captured V2 in WWII (almost 80 years ago). Is that really true?
Similarly, the -22 is the most lethal and stealthy plane every existed. But it's design was taken initially from the -15, and it was to becomes a successor of the -15 program. Today, the Raptor doesn't look anything like a -15 and can fry half the squadron of -15 or -16 before it can be seen or an effort is made to counter it. So does that mean the -22 is an late 60's design???
The JFT has similarites with the -16, the -20 and the -18, it looks like a cross between the three. What Russia sold to China, if you see its blue print was a smaller -5 or something in Red and White colors and small wings like the -104 Star fighter. Does the JFT look anything like that? Is the capability, avionics on par with the -16 or the -5 of the 60's? I don't think there were BVR missiles outside of the US military that can attack even 20 miles out or PGB or LGB's. You are comparing Apples and Oranges..
