Chinese Engine Development

Dfangsaur

Junior Member
Registered Member
DaROwAtUMAAJkun.jpg:large

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.
 

Blitzo

Lieutenant General
Staff member
Super Moderator
Registered Member
DaROwAtUMAAJkun.jpg:large

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.

... Who is the author? What's their history of predictions, what's their reputation?
 

Dfangsaur

Junior Member
Registered Member
Sounds too good to be true... I would heed his suggestion and wait until the end of the year to see what happens.

Let’s not get too hyped about it since we don’t have any substantiated info to go by. Let’s just wait and see.
True. Im skeptical about his claims, but I do wish to be proved wrong.
 

Figaro

Senior Member
Registered Member
True. Im skeptical about his claims, but I do wish to be proved wrong.
WS-15 is based on the 30 kg/s class CJ-2000 core engine, which was initiated in 1991. WS-15 core testing only began in 2006 if I'm not mistaken ...
Restarting an entire program is quite common. Not fishy at all and actually explains delays in a country that usually does not usually do delays and would sometimes rather rush an immature product than delay it. An example of restarting a successful project is Lexus' LFA. They had everything working fine and progressing well and then the chief engineer and board of directors thought it would be better to investigate a composite material body rather than aluminium so they did and found it to be much better and decided to restart the program. Production methods and tolerances vary a lot between those two materials so pretty much most of the work needed a restart. That's just for something as simple as a car, albeit an amazing supercar. Comprehensive turbofan manufacturing technology is held by a total of 5 nations. Russia, USA, China, France, and UK. Redesigning for tech and performance advantage is seriously worth the delays because there are so few competitors. Actually only USA and Russia on this thrust level.
WS-15 was never restarted ... it is a design heavily modified from the CJ-2000 core machine.
 
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