Chinese Engine Development

taxiya said:

The first screen shot
View attachment 101188
The subtitle is AEF1300 which is the alternative name for CJ-1000A. Unless CCTV is putting subtitles on wrong thing.

As the possible reason of different number of blades. This one in the screen dump looks to be composite blade. I have asked the question in #7044.

The earlier CJ-1000A ground test article was hollow titanium blade. Could it be that the number of blades are changed due to change of material?

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It is possible that the CCTV reporter or editor thought it was a CJ-1000A and put the AEF1300 on subtitles mistakenly, or maybe 1300 mean the first engine with the trust of 130KN class, so WS-20's civilian version, which is supposed mature earlier than CJ1000A, takes the code name, and left AEF1301, AEF1302...etc. for CJ1000A.

The logo on the engine is AECC. Usually CJ1000A is labeled AECC CAE, though CAE is a subsidiary of AECC now, but it used to distinguish its products from other AECC subsidiaries' products by adding its subsidiary name after its parent company's name on logos.

Rumor from Henri K. says that five variants of the WS-10 will be exhibited at the airshow.

taxiya said:

The first screen shot
View attachment 101188
The subtitle is AEF1300 which is the alternative name for CJ-1000A. Unless CCTV is putting subtitles on wrong thing.

As the possible reason of different number of blades. This one in the screen dump looks to be composite blade. I have asked the question in #7044.

The earlier CJ-1000A ground test article was hollow titanium blade. Could it be that the number of blades are changed due to change of material?

Click to expand...

AEL1300 is another name of CJ-1000A

tphuang said:

How official is the text in the background. The text in the foreground says
Thrust is 12900kgf to 13600 kgf
can mass produce in 5 years.
50% lower emission than ICAO CAEP 6
noise less lower than 1.08 EPNdB

the text in the background says
the original WS-10 had 12t thrust with afterburners
and the recent WS-10 is in the 15t thrust class.

I've anticipated for a while that to be case, but it would be a nice confirmation if true.

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This was the CJ-1000A promo video from last year’s Zhuhai.

latenlazy said:

This was the CJ-1000A promo video from last year’s Zhuhai.

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that still doesn't address my bigger question. Are the texts in the background that current WS-10 are in the 15t class from anyone that's legitimate? That would be big news if we can confirm J-20 engines are almost at F-119 level in thrust.

tphuang said:

that still doesn't address my bigger question. Are the texts in the background that current WS-10 are in the 15t class from anyone that's legitimate? That would be big news if we can confirm J-20 engines are almost at F-119 level in thrust.

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Which texts…?

Edit: Do you mean the side scrolling text? That stuff are just viewer comments.

tphuang said:

that still doesn't address my bigger question. Are the texts in the background that current WS-10 are in the 15t class from anyone that's legitimate? That would be big news if we can confirm J-20 engines are almost at F-119 level in thrust.

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Probably AL41F can reach 15 tons wet too by pushing it harder at the expense of service life. But bear in mind that F119 is estimated to have 11-12 tons military thrust.

LCR34 said:

Probably AL41F can reach 15 tons wet too by pushing it harder at the expense of service life. But bear in mind that F119 is estimated to have 11-12 tons military thrust.

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Any engine can reach whatever number lower than the point at which it explodes. The question is what the operating thrust is, not what it can be "pushed" to.

ZeEa5KPul said:

Any engine can reach whatever number lower than the point at which it explodes. The question is what the operating thrust is, not what it can be "pushed" to.

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Hence i said F119 have very high speculated military/dry thrust. That enables F22 to supercruise without those fuel guzzling afterburners. I bring out AL41F as Chinese designers have stated that WS10 have exceeded all Russian made engines in all parameters. Given that SU-35s are in PLAAF services, and AL41F/117s is supposedly only one tier below izdeliye 30.

Red tsunami said:

But this AL-41F is too big.

View attachment 100816

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This image doesn’t seem right, the F119 is not a small engine, and even the smaller YF119 is 203 in or 5.16 m long, which is quite a bit longer than the AL-41F1S which is about 4.94 m long. AL-41F1S is almost identical to the AL-41F1 with the only real difference being the control unit, so the Chinese should actually have a pretty decent idea of the Su-57’s current engine.