Chinese Engine Development

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minusone

Junior Member
Registered Member
siegecrossbow said:
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Yankee and friends have a similar somber attitude about the WS-15 progress. It has reached the same stage as F-119 before integration with F-22 but that happened so long ago. On the bright side at least China is finally in the same generation as the U.S. 20 years ago when the Americans were making F-119 China was making advanced turbojets and sometimes failing...

Another interesting leak is that WS-18 is pretty much mature. It is a domestic copy of D-30 and they went about in a Ship of Theseus approach where they incrementally swapped out Russian components for domestic components until the whole thing was domestic. Then China proceeded with mass producing WS-18 with domestic components.
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Did they give out which TVC mode it will adopt? 2D? 3D?
 
Z

zyun8288

Junior Member
BTW guys, question about the latest WS15 video, when “batch production “ was used, was it about WS15 or WS15 material?
 
siegecrossbow

siegecrossbow

General
Staff member
Super Moderator
zyun8288 said:
BTW guys, question about the latest WS15 video, when “batch production “ was used, was it about WS15 or WS15 material?
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LRIP WS-15. The material used is frozen for WS-10 and WS-15, not so for WS-19 and WS-20.

Based on Yankee’s conjecture they probably produced over 40 engines for prototype testing after encouraging results from last two years of testing. My guess is that complete form J-20 will make an appearance at Zhuhai Airshow 2026. Delivery to PLAAF should start no later than 2025.
 
Temstar

Temstar

Brigadier
Registered Member
siegecrossbow said:
They didn’t say. But Orca said 2D TVC.
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So did all these leak in recent days all originate from Orca? When I was checking this morning he's weibo account was still fine. Chahuahui gang reckon he's due for a new account because of all his recent activities.
 
Breadbox

Breadbox

Junior Member
Registered Member
siegecrossbow said:
While everyone is celebrating I’d like to sober everyone up by reminding that the WS-15 development took so long that all of the Chinese military forums are now dead and can’t celebrate the news.
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Seriously, CJDBY spent the entire duration of the Ladakh standoff posting Satellite images of military positions/installations, even if they are acquired from public spaces, they are compiling all the info into neat, digestible format.

I am not surprised at all or sad they got shut down not long after that(I'm 99% sure Ladakh standoff caused the shutdown), absolutely asking for it, happiness of forum goers are nothing compared to actual national security.
 
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Hitomi

Junior Member
Registered Member
latenlazy said:
The US doesn’t seem to be moving to counter-rotating high pressure compressors in its immediate tech tree from what I can tell. As far as I can tell China started working on this technology from the early 2000s. The US actually had a variable cycle engine in the early 90s. One of the candidate engines for the F-22, the F120, was variable cycle. The Pentagon chose not to go this direction back then because of program risk. But the US’s next generation engine is going to be VCE. China started development on VCEs from what we can tell around the 2010s.
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What are the benefits of a counter-rotating engine? Is it really equivalent in complexity to VCE because I imagine it would be something like Gen 5.5 while VCE is Gen 6.
 
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