That's a package of logical fallacy. Just because one approach works does not preclude other approaches from working, and just because the J-20 doesn't follow the exact same rules as the F-22 or T-50 does not mean it can't be as stealthy. How stealthy a design is is solely based on the physics of radar control, and not based on what other people have done before it. Also, just because a country hasn't done it before doesn't mean they can't. By your logic the US would have never won the space race because the Russians got into space first. Don't use a country's "credibility" or "history" as a substitute for a lack of knowledge on the subject. Not only is it inadequate to prove a negative, but you are using "credibility" and "history" to groundless assumptions about what works and what doesn't work based on premises that have nothing to do with the actual mechanics of the subject. Eyes you certainly have, but an understanding of the limits of your own knowledge you do not.
Just in case you don't see it in my other post (since you don't seem to be reading anything I write), by your logic the US would have lost the space race to Russia.
If you would excuse me, it takes time to reply - since I don't just reply to you only, there are many other posters in this forum than you.
Now, what I was trying to point out is - experience matters. It certainly doesn't mean China can't catch up, but from a historical point of view, China wasn't able to indigenous design a high performance engine, because
IT HAS NO EXPERIENCE. This has plague China for how long now?
over 50 years??
So, forget about something as complex as stealth aircraft. With China who still languishing in development hell of
completely designing and putting together a fighter - can you understand my skepticism?
Again, even for a technological advanced country like USA with massive infrastructural/technological/talent base, it takes them decades to come to this singular point of achievement. Even Russia has to abandon the failed stealth project at least once. And here is China who can't even master engine comes along and believe it can design the complete stealth package.
The trailing edge of main wings are align DIAGONALLY to the canards. Seems kinda odd if you look at the F-22 and PAK FA when they are both aligning to the trailing edge of the aft wings and main wings. So I don't see that as alignment. More of misalignment.
The "inferior stealth" is from the lack of shaping in regards to non-frontal aspects. However, the inlet design only matters for frontal stealth, and in the F-35's case that's just fine.
Also, another logical fallacy. False premise(s). A is stealthier than B but A has no weapons. By your logic does B survive against A? Stealthiness is not the sole determinant of how one aircraft will perform against another. In fact, stealth is a purely defensive property, and determines survival, not kills. The J-20 doesn't even have to be as stealthy as the F-22 or PAK-FA to be comparable. (And ultimately it's not the individual planes but the system integration that determine how good a platform is).
No, of course J-20 doesn't have to as stealthy as F-22 or PAK-FA to be comparable. If its subsystem and weapons are superior, it could be comparable. So, let's say J-20 can detect F-22 or PAK-FA and fire its BVR missiles before F-22 or PAK-FA can. Now, this argument - let me just ask you one question.
Have you ever heard of ANY weapon system in Chinese inventory that's superior to Russian or American example in same category???
WELL???
If China has no weapon system that's superior to US/Russian (let's be specific, BVR missile most likely PL-12, and radar), what chance does J-20 be comparable to F-22 or PAK FA? In your dream?