Chinese Engine Development

tonyget said:

I don't think it's outdated, the info is extracted from this report

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which was published in 2021/06/29. So it is pretty up to date.

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The report might be published very recently. But it contains outdated contents, regarding the large presses, the precision rolling technologies, for example.

tonyget said:

You do realize that not all factories in China（or any country for that matter）are equal right？There is advanced smart factory，there is also backward small factory，you have to look at the average level of factories in that country. It is actually mentioned in the report

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Well, you said that "China still lags behind in advanced forging technologies...". Had you said "Some Chinese jet engine makers still lag behind ...", it would be less controversial.

On the other hand, there are always winners and losers in any market. As long as the country as a whole is not lagging behind by a lot, nothing wrong if some Chinese companies are less competitive with technologies. They either have to learn to catch up or they will be replaced with those who do better.

tonyget said:

Aerospace components forging isn't your regular forging


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I wasn’t talking about regular forging. I was just pointing out aerospace forging processes aren’t a blocker like some other components and processes are. Techniques like 3D printing and materials like CMCs and metal ceramic composites are becoming alternatives for the parts that use aerospace forging. You don’t need every single process or component to be state of the art to reach state of the art performance. In the case of the deficiency with forging, the specific issue here isn’t even about parts performance as much as it is about a small piece of the industrial efficiency picture. Not everyone has or needs every advanced process material and component design capabilities.

SanWenYu said:

The report might be published very recently. But it contains outdated contents, regarding the large presses, the precision rolling technologies, for example.

Well, you said that "China still lags behind in advanced forging technologies...". Had you said "Some Chinese jet engine makers still lag behind ...", it would be less controversial.

On the other hand, there are always winners and losers in any market. As long as the country as a whole is not lagging behind by a lot, nothing wrong if some Chinese companies are less competitive with technologies. They either have to learn to catch up or they will be replaced with those who do better.

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I mean all Chinese engine manufacturers lag behind in advanced almost everything compares to western counterparts like PW/GE/RR, in fact ,the gap is huge .

Philister said:

I mean all Chinese engine manufacturers lag behind in advanced almost everything compares to western counterparts like PW/GE/RR, in fact ,the gap is huge .

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Then why is Germany purchasing Chinese engine technology? Chinese tech has improved significantly to where Western companies want to purchase it.


You have a very outdated view of modern Chinese engine technology.

Phead128 said:

Then why is Germany purchasing Chinese engine technology? Chinese tech has improved significantly to where Western companies want to purchase it.

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You have a very outdated view of modern Chinese engine technology.

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Because Germany itself isn’t that good at jet engines ,I would be convinced if Americans are coming to buy our technologies,but that’s not happening right?

Philister said:

Because Germany itself isn’t that good at jet engines ,I would be convinced if Americans are coming to buy our technologies,but that’s not happening right?

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The EJ200 is a German-British joint design. Germany is pretty good at gas turbines.

latenlazy said:

The EJ200 is a German-British joint design. Germany is pretty good at gas turbines.

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So is Japan, being good at making some parts doesn’t mean you are good at the whole process

Philister said:

So is Japan, being good at making some parts doesn’t mean you are good at the whole process

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Japan hasn’t put an advanced engine in production like Germany has, so it’s rather inaccurate to say Germany is only good at making some parts. And Japan’s XF9 prototype is no slouch either. The core technologies in that engine are as good as anything state of the art today.

latenlazy said:

Japan hasn’t put an advanced engine in production like Germany has, so it’s rather inaccurate to say Germany is only good at making some parts. And Japan’s XF9 prototype is no slouch either. The core technologies in that engine are as good as anything state of the art today.

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There’s a huge difference between joint development and indigenous products, yes, Germany took part in developing and manufacturing EJ-200, and now the Japanese is also developing an new engine with R&R, does that make them good at jet engines?
I think one’s ability must be measured by its fully indigenous products rather than joint development products, for we all know that it’s the brits doing most of the work,I consider Americans as the best cuz they can design and make some of the best engines fully on their own and we are far behind them, thus the big gap, you are not advanced till you are the best.
We are not in a competition with India,it’s that simple.

Philister said:

There’s a huge difference between joint development and indigenous products, yes, Germany took part in developing and manufacturing EJ-200, and now the Japanese is also developing an new engine with R&R, does that make them good at jet engines?
I think one’s ability must be measured by its fully indigenous products rather than joint development products, for we all know that it’s the brits doing most of the work,I consider Americans as the best cuz they can design and make some of the best engines fully on their own and we are far behind them, thus the big gap, you are not advanced till you are the best.
We are not in a competition with India,it’s that simple.

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Germany was responsible for the compressors of the EJ-200, the engine core, which is the component that is most responsible for driving performance gains. The EJ-200’s compressor is a more advanced design than the F119s used in the F-22. So no, it wasn’t just the Brits doing all the work.