J-20 5th Generation Fighter VII

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siegecrossbow

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Btw do you know where the source for the 16 tonne taihang variant was? I was digging through pupu’s Weibo and couldn’t find anything about it.

I don’t think he mentioned 16 tonnes directly. He said that there is a turbo boosted version of WS-10 and some of the followers interpreted it as 16 tonnes.
 

Tsin Phan

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In my research, I have found that J-20 is superior in most of its featues to F-22, Rafale, Typhoon jet fighters.
Indian media is talking that China is selling, giving J-20 or J-10 to Pakistan and Iran. Indian showing pictures that J-20 and J-10 is landed in Pakistani airports. Any comments ??
 

Deino

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In my research, I have found that J-20 is superior in most of its featues to F-22, Rafale, Typhoon jet fighters.
Indian media is talking that China is selling, giving J-20 or J-10 to Pakistan and Iran. Indian showing pictures that J-20 and J-10 is landed in Pakistani airports. Any comments ??


complete BS and as long as I don't see such an "Indian showing ... J-20 and J-10 is landed in Pakistani airports" I don't believe it.
 

Inst

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I will call BS on the TVC engine from NPO Saturn rumor for a couple of reasons. WS-10A is around the same class as the AL-41, and also can be upgraded with TVC, the only engine that is better than the AL41 that russia has is the izdeliye 30, which is still in development and not likely to be exported to China due to IP issues.

AL-41 is substantially better than the WS-10A, possibly the B as well (if we've gone back to WS-10B is 137 kN). The other factor for choosing Russian engines over Chinese is whether the Chinese have sufficient jet engine production up; WS-10Bs / WS-10Cs divert production from engines / spares for existing J-10s and Sinoflankers; moving to Russian engines, given how well the Su-35 is selling (not at all at the moment), the Russians could possibly deliver spare engines cheaply.

I wouldn't go as far as to call it plain bullshit, but there's no evidence from reliable sources that they've decided to do AL-41s with TVC.
 

Figaro

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I don't think Figaro was alluding to the 'fluidity' of design goals during the developmental process. Figaro's claim was made in response to siegecrossbow's post on a 16-tonne variant of WS-10. Specifically, Figaro claims to have read in 2014 about a "significant" revision of WS-15's specifications and that this revision was the reason behind WS-15's delay.

I have not read anything about a "significant" revision, and as an aside, I'm not aware that WS-15 is delayed. This is why I asked him to back up his claim with a source, which he was unable to provide. Your speculation on what Figaro may have based his claim on doesn't fit the bill based on the timeline and the context in which he made the original claim.

Anyway, It's a fool's errand to speculate on and deconstruct logically the process by which a fanboy arrives at his claims, even if he's capable of skillfully regurgitating old information in such a way as to present a false appearance of understanding the material.
No I wasn't. The WS-10 is a different engine than the WS-15 so why would I be mixing up those two? Please don't falsely speculate on my behalf. The
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of the WS-15, as described by a well known big shrimp "Maya" was an engine in the 150 kN class (along with using 2nd gen DD6 single crystal superalloy, FGH 96 P/M superalloy), roughly analogous to the F119. Then starting around the early 2010s, there were reports of the WS-15 being an
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instead and the WS-15 was even listed as an 180 kN engine in the AVIC organized "
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" Obviously, these figures are quite a step up from the original 150 kN class design goal as stated by Maya. Unfortunately, I could not find the specific CJDBY threads detailing this revision since it was quite some time ago but you're more than fine to go search for this yourself. If anything, I'm surprised as to why you find a WS-15 design revision to be shocking. Since then, 3rd generation DD9 and DD10 single crystal superalloys have come out, not to mention the FGH-98 P/M disk, all of which offer substantial material performance upgrade over the original WS-15 materials. It is very plausible for 606 to take advantage of this and alter the design to include these materials rather than coming out with a quarter century old F119 class engine, as the original specs entailed.

Regarding the delay, Maya said it would take about 10 years for the WS-15 to enter mass production after testing its core at high altitude in late 2009. I hope you can agree that the WS-15 is not nearly in mass production stage yet right? As I've said before, I highly recommend you read through the 545 page engine thread. Perhaps it can enlighten you a bit on the Chinese aeroengine development :p.
 
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