Chinese Engine Development

sunnymaxi · Apr 22, 2025

Tomboy said:
So is WS-35 the 25tf class engine that Shenyang is working on or a separate development? Since WS-35 is apparently a Xi'an product.

i was going to talk about this..

AECC Shenyang has sperate program that is ongoing for years and Shenyang will not stop on WS-25.. they have big plans.

WS-35 just announced by Xian. so this could be next gen ACE engine or maybe 30+ tons class HBR engine. we should wait for more information about WS-35.

by78 · May 3, 2025

by78 said:
An
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on dual-throat vector thrust (DMD) nozzles. DMD nozzles are non-mechanical vector-thrust nozzles where the exhaust flow from the core is deflected by secondary jets located at the throats.

by78 said:
Another academic paper on dual-throat vector thrust (DMD) nozzles. Unfortunately, I don't have access to the full paper.

Some excerpts from a paper that show China is quite actively exploring various types of fluidic thrust vectoring designs, having tested them in lab settings as well as on scale demonstrators.

Alfa_Particle · Monday at 3:46 AM

Some rather curious information on the WS-6, which include comparisons with the F100/110. 1/2

img-174642045671866bb3438ca22f6924ce7a87981ae9ce16c9908530fa357bfa5b73aaa26b4fd11.jpg

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Screenshot_20250505_173931_com.android.gallery3d_edit_1472837894426822.jpg

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Alfa_Particle · Monday at 3:52 AM

2/2

img-17464204826473f92b1cecaf13eafadc3361715640de88a14bb55b8809f248e28cbb12149bddb.jpg

img-1746420493448283c6f97ff972e46d41c66e87c9099bf05b17cf205738cfb07922133e171f194.jpg

I actually think the uploader is withholding even jucier information. The last image shows that the page before contains some sort of performance curve (most likely thrust), but he didn't upload it.

Alfa_Particle · Monday at 4:55 AM

Alfa_Particle said:
2/2

View attachment 151191
View attachment 151194 View attachment 151192

I actually think the uploader is withholding even jucier information. The last image shows that the page before contains some sort of performance curve (most likely thrust), but he didn't upload it.

Another page from an entirely different manuscript that mentions the WS-6's supersonic performance.

The main thing is the table, which says:

latenlazy · Monday at 5:18 AM

Alfa_Particle said:
Another page from an entirely different manuscript that mentions the WS-6's supersonic performance.

View attachment 151197

The main thing is the table, which says:
View attachment 151202

BPR of 1 is funny though.

Alfa_Particle · Monday at 5:32 AM

latenlazy said:
BPR of 1 is funny though.

Somewhat usual Chinese engines wizardry.

How'd they achieve this kind of performance with that BPR? No idea.

latenlazy · Monday at 6:38 AM

Alfa_Particle said:
Somewhat usual Chinese engines wizardry.

How'd they achieve this kind of performance with that BPR? No idea.

BPR of 1 is not restrictive for supersonic speeds with afterburners. F101 (B-1), NK-25 (Tu-22M), and NK-32 (Tu-160) all have BPR between 1 and 2.

by78 · Monday at 6:55 PM

WJ-6 turboprop on a test stand at an AECC test facility.

by78 · Friday at 3:07 AM

by78 said:
A better image of that megawatt-class hydrogen turboshaft.

The SA750U unmanned cargo UAV is being integrated with a hydrogen turboshaft in the megawatt class, which could well be the same megawatt-class hydrogen engine seen previously in model form.

Chinese Engine Development

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