Chinese Engine Development

Alfa_Particle

Junior Member
Registered Member
(moved here as it's more appropriate)

What ACuriousPLAFan is right but anyway here's some public data engine specs i've found and put them in a chart. So you won't have to be scraping the internet for data like me. If anyone wants to add some figures I'll oblige. The Yellow numbers are my speculation/backwards calculations like for example known T/W ratios given, and reverse calculations that wet thrust is generally 50% more than dry thrust. It's just something that helps me keep track of any new info.
View attachment 155874

Chinese engines really have no info/hard to find anything. The Indian kaveri on the other hand, despite being a failed engine it has all the info out there.
A few comments if you don't mind (which, of course, due to their nature as info regarding Chinese engines, are speculation but I rate their sources pretty credible):

- There should be a distinction made between WS-10B and WS-10D/B-3 (144 kN). After the core refresh in 2022 they're very different animals.
- WS-10C also went through a core refresh around the same time and I think WS-10C (late) is in the 150-155 kN range (if you're dead set on one number I'd say 150 kN, corresponding to the F110-GE-134 and "scratching the levels of old WS-15 rumour")
- WS-10C2 should be around the levels of the "fully realised WS-15 pre-revamp" at 160 kN ish? I doubt at the original YWH-30-27 core though at 175 kN (GE did propose a 178 kN F110 VCE variant but I doubt the C2 is one).
- Allegedly there's WS-15, WS-15A, and WS-15B too. But nothing much other than "they exist." And I think the current WS-15 (whatever the suffix is, A/B/X) should be 175+ kN based on the old goal from the YWH-30-27.
- The production WS-19 should be around 118-127 kN, leaning towards 127 kN.

I think you overestimated the new ws-19 and underestimated the new ws-15 in terms of thrust. More likely be around 110kn and 180kn. Also the new ws-15 most definitely has a larger bypass ratio than 0.25, more like 0.37 from what I've heard.
Nah, I agree with the WS-15 part but the WS-19 part is definitely fine. The thrust range I was given was 12,000-13,000 kgf. And Eurojet also thought a 120 kN EJ200 was possible with technology 2+ decades ago.

Also the f119 actually had a thrust of 162kn, it was a 35000lb"class"engine but is actually capable of producing around 37000lbs
A ceramics upgrade, but I thought it was only planned and never materialised?
 

FirebirdFan

Junior Member
Registered Member
(moved here as it's more appropriate)


A few comments if you don't mind (which, of course, due to their nature as info regarding Chinese engines, are speculation but I rate their sources pretty credible):

- There should be a distinction made between WS-10B and WS-10D/B-3 (144 kN). After the core refresh in 2022 they're very different animals.
- WS-10C also went through a core refresh around the same time and I think WS-10C (late) is in the 150-155 kN range (if you're dead set on one number I'd say 150 kN, corresponding to the F110-GE-134 and "scratching the levels of old WS-15 rumour")
- WS-10C2 should be around the levels of the "fully realised WS-15 pre-revamp" at 160 kN ish? I doubt at the original YWH-30-27 core though at 175 kN (GE did propose a 178 kN F110 VCE variant but I doubt the C2 is one).
- Allegedly there's WS-15, WS-15A, and WS-15B too. But nothing much other than "they exist." And I think the current WS-15 (whatever the suffix is, A/B/X) should be 175+ kN based on the old goal from the YWH-30-27.
- The production WS-19 should be around 118-127 kN, leaning towards 127 kN.
Would you mind sharing the source of your information on these numbers and anything on the core and core upgrades.
 

Alfa_Particle

Junior Member
Registered Member

qwerty3173

Junior Member
Registered Member
Most of these are unfortunately from private sources (think of it as guesswork, really).

Crossposting from the STOVL thread:
This stovl type engine specs look extremely similar to F-135 it seems. If 2200K turbine inlet temperature can be achieved on WS15 then I believe it possible for it to become the best fighter engine for quite a few years before XA102 materializes.
 

sunnymaxi

Major
Registered Member
This stovl type engine specs look extremely similar to F-135 it seems. If 2200K turbine inlet temperature can be achieved on WS15 then I believe it possible for it to become the best fighter engine for quite a few years before XA102 materializes.
not exactly similar to F-135 but close to F-135 specifications.

F-135 TIT is 2260°K
this Engine TIT is 2200°K

also length and other parameters is different too..

this is not shocking if we follow the recent development of China's material industry. i have been telling the people on this forum. WS-15 TIT is way higher than what actually written on Wikipedia.
 

ACuriousPLAFan

Brigadier
Registered Member
not exactly similar to F-135 but close to F-135 specifications.

F-135 TIT is 2260°K
this Engine TIT is 2200°K

also length and other parameters is different too..

this is not shocking if we follow the recent development of China's material industry. i have been telling the people on this forum. WS-15 TIT is way higher than what actually written on Wikipedia.

With the listed bypass ratio, I certainly don't think this engine is the WS-15 itself, especially considering what the WS-15 engine is intended for.

This engine (if the data is fully accurate) is very well to be a yet-to-be-known, brand-new model of low-bypass engine.
 
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Alfa_Particle

Junior Member
Registered Member
This stovl type engine specs look extremely similar to F-135 it seems. If 2200K turbine inlet temperature can be achieved on WS15 then I believe it possible for it to become the best fighter engine for quite a few years before XA102 materializes.
The production WS-15 might go even higher than 2200.

And it's not like it's the XA102/103 that's the engine that'll be on the production F-47 birds. It's the A102/103. Right now not even the XA102/103 is in flight testing I believe, nevermind the YA102/103.

With the listed bypass ratio, I certainly don't think this engine is the WS-15, especially considering what the WS-15 engine is intended for.

This engine (if the data is true) could very well be a yet-to-be-known, brand new low-bypass engine.
Probably a modified WS-15 like the F135 to the F119. Or WS-10. That thing never goes away anyway, the CFM56 lives on, just in different hosts. It's an immortal concept.
 
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