Chinese Engine Development

by78

General
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It's rumour time, it's about the new WS-15? engine~~
Translation:
As I said, that you-know-what engine (WS-15?) will be installed on J-20 soon. Don't ask me where the information came from, just wait and see. There will be none stop surprises coming your way! The engine is no longer the same as the one previously shown in plans. It has completely changed and I can responsibly tell everyone that the development of the engine has started over completely twice. Thanks to the breakthrough in material science, the final version will be incredible. Just like the appearance of J-20 was incredible in December 2010.
Surprise 1: the target engine will be installed soon. Thrust is up from 10.x -- 15.x tons to 11.x -- 18.x tons.
Surprise 2: The new engine will have two versions. The later version is expected to reach a maximum thrust of 22.x tons. Both versions will have TVC.
Surprise 3 (biggest one yet): it will employ variable bypass technology. At an altitude above 10000m, it will produce 30% more thrust than F-119. Not only is the engine for J-20, it also creates the research preparation for the next generation fighter.

The serrated nozzle Taihang engine (WS-10B?) seen before is the back up plan for this new engine. As the development of the target engine is going well, the back up plan will not be used on the improved J-20. We should be able to see a prototype launched by the end of 2018 at the earliest.

yada yada doubt me all you want yada yada thanks F-35 for forcing our hands

(the end)

What do you guys think? I'm a little skeptical as a prototype TVC WS-10 was only shown last month and it's mature enough to be on the WS-15 already? Also I don't know about the variable bypass either. The author seemed confident though.



:rolleyes::rolleyes::rolleyes:

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Klon

Junior Member
Registered Member
I just noticed that this
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of the May edition of Aerospace Knowledge shows the full article on TVC, if anyone feels like translating.
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Plus, if anyone has the bomber article, I'm sure many would like to read it.
 

taxiya

Brigadier
Registered Member
I just noticed that this
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of the May edition of Aerospace Knowledge shows the full article on TVC, if anyone feels like translating.
View attachment 46578
Plus, if anyone has the bomber article, I'm sure many would like to read it.
Besides talking about the need, it basically said the same thing that I posted here #2420, I swear I did not see this article until today:p, see the second picture in the post.

It basically says that the bulge contributes to smoothing the jet flow which reduced the thrust loss down to 2%, being the lowest among all designs. It is a variant of "AVEN" type with the unique bulge.
 

latenlazy

Brigadier
Besides talking about the need, it basically said the same thing that I posted here #2420, I swear I did not see this article until today:p, see the second picture in the post.

It basically says that the bulge contributes to smoothing the jet flow which reduced the thrust loss down to 2%, being the lowest among all designs. It is a variant of "AVEN" type with the unique bulge.
By the bulge do you mean the swivel point in the middle of the petals?
 

taxiya

Brigadier
Registered Member
By the bulge do you mean the swivel point in the middle of the petals?
yes. I marked the joint covered by the bulge in first picture of post #2420.

However, the author MAY have a different understanding of the bulge to reach the same conclusion "smoothing flow". It is difficult for me to judge due to lack of the diagram of later development.
 
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