Chinese Engine Development

Russian Sources point out that the Chinese copy of the AL-31FN(?) engine cannot be reduced in weight with the 1st and 2nd compressor, therefore, China's version has less thrust and therefore we really dont care, until China solves thaT problem, and hopefully but then the TVC version will be out

the ws-10A is not a copy of the al-31. it is based on a western engine, possibley taken from the f-16 pakistan loaned china.It may incorperate a few features from the al-31 though. the ws-10 was a copy of al-31, but it got cancelled.

the tvc is already out, although the chinese still need to test it on a fighter.

http://www.china-defense.com/forum/i...opic=2059&st=0
This is the PRC engine thread in China defense. This provides more sources than anywhere else.

And no, WS-10A was not developed after AL-31FN, but rather after CFM56.

There were some problems encountered in late 2004, but they have apparently being solved. This is one of the posts:

some news (China Aviation Paper sponsored by AVIC1&2) implies that 10A turbofan is already in the final phase of certification.General manager of AVIC1 LiuGaoZhuo required SARI go all out to accomplish the certification tests of the "Crucial Type" by the end of this year, during his inspection in Shenyang on July 13rd . Early in 2001 The chief designer (Vice superintendent of 606) -ZhangEnHe declared 10A to enter service in 2005.
the following news reported that till the end of first half year ,10A has completed most Flight-test subjects in Yanliang; made a vital breakthrough during Altitude Test at CGTE(in the 1#cell of SB101 ATF) ;undergone endurance test smoothly in Shengyang( probably accomplished 2* QT150h、300h or AMT)...

航空企事业单位圆满完成上半年科研生产任务
决胜重点型号 确保任务完成
--------------------------------------------------------------------------------
http://www.avic1.com.cn　　2005/07/05
......

今年上半年，中国一航沈阳发动机设计研究所通过加大质量管理力度，促进了以重点型号研制为中心的科研生产工 作。攻关战区高空台试验攻关取得关键性突破；试飞战区完成了大部分的考核科目；试验战区重要零部件考核试验 全面告捷；长试战区严格落实责任制，建立应急预案，及时发现问题，解决问题，持久试车进展顺利

Wow the second time... geez now I'm behind in the news

When was the copied AL-31F cancelled?

CFM56???

okie im lost in time

Originally Posted by tphuang

And no, WS-10A was not developed after AL-31FN, but rather after CFM56.

sure about that? The CFM56 family of engines are medium bypass civil turbofans--not exactly the type of engine you would put in a fighter.

nevermind, after a bit of research, I found the WS-10A is supposedly based on the core of the CFM56.

you mean like the compressor and the fan and stuff?

Originally Posted by Chairman Hu

you mean like the compressor and the fan and stuff?

the core would be the high pressure and low pressure compressors, the combustor, the turbine, but not the fan.

what is the rest of the engine/material based on?

chinese tech or foreign?

The Chinese must have figure somethings out for themselves.

the chinese must be innovative enought to have copied the basics of the engine, imputed parts from al-31 possibly, and figure most of it out on their own.

So a bit more like a copied AL-31F with american tech to solve the thrust problem but adding China's own tech into this engine...

Nice...

I heard the WS10A is more fuel effecient and last longer than AL-31 is that ture?

yeah, but that's because the Russian engines last half as long as American ones.