"the day any official source like AVIC, CAC or the manufactor of the WS-15 says that the WS-15 is fully operational from day one J-20 no. '2001' flew - or even '2011' - I will resign officially my moderator status."
Nice try!
Isn't your assertion is: J-20 #78275, and all previous versions, is still flying the bonafide Russian made, AL-31FN engine. And the WS-15 core or complete engine, has never been tested on any version of J-20, as of Mar 14, 2017?
Is that true?
Not sure if You either so much desperate that You always try to mix two different things or if You plain xxxx so that You cannot understand.
You are the one who is claiming all J-20 - including the demonstrator 2001 from day one - is using a super-secret special WS-15; You are the one who claims that this beast of an engine delivers already now +210 kN and that the J-20 can easily reach Mach 3. So much on Your fantasy.
Finally again to Your accusations and my claims:
1. J-20 #78275, and all previous versions, is still flying the bonafide Russian made, AL-31FN engine:
YES; so far all five LRIP J-20As and the prototypes 2011-2017 are using IMO a dedicated, custom-made - maybe co-developed and co-manufactured - uprated, specialised or whatever version of the AL-31FN-family. IMO - even if here I admit it is only a unproven theory - it is most likely a variant based on the AL-31FM2.
2. And the WS-15 core or complete engine, has never been tested on any version of J-20, as of Mar 14, 2017:
YES again, so far not a single WS-15 was ready for aerial testing in flight, not even in a Il-76LL and even less likely in any of the J-20, be these the two demonstrators, the prototypes or the few LRIP birds.
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Therefore - and this is the final time I say this -
"the day any official source like AVIC, CAC or the manufactor of the WS-15 says that the WS-15 is fully operational from day one (and that's important, since this is Your claim) J-20 no. '2001' flew (and not in about 4-5 years when finally a WS-15-prototype will be testflown for the first time) I will resign officially my moderator status."
In Germany one would say I have at least some eggs in my basket I'm willing to bet; You in return however are constantly looking for an excuse, searching for maybe this, maybe that and are spinning even more abstract theories. Even worse You are not reading properly - maybe You are simply not willing or able to do so - and are twisting words.
Again: this above is my statement, my bet and when someday any official source says so I will go; but please not after any random internet-page reports anything, a certain reporter (including Minnie Chan from the SCMP) tells anything.
And if You would be a man, You would try at least to stick to the facts.
Deino