Chinese Engine Development

taxiya said:

I seriously doubt this interpretation "merging two projects to one" regardless how close China and Russia are.
China is not going to give up the independence of own engine building capability, regardless cooperation with whom. If there is going to be a merging, China will make sure to be able to freely utilize every bits of technology in that merged product in later development. That is although a 50/50 joint venture, China will have 100 right to use the outcome. China does not mind if Russia acquire 100% right as well (to be fair, Russia should), but China must. Question is, does Russia accept this kind of deal? What do you think?

Another thing is, China has employed MTU in CJ-1000AX who may continue in CJ-2000. There is IP issues involving Germany. The designs (PD and CJ) may be different in many areas. Is China going to give up what's learnt in CJ-2000 to continue finance PD-35 path? I seriously doubt. If China and Russia decide to incorporate CJ-2000's tech in the merged product, is it ok with Germany?

My interpretation of the agreement between Russia and China is that China invests in PD-35 program (which I have heard from Chinese BBS as well). But PD-35 and CJ-2000 remains separated tracks. This works for both sides, everyone owns the portion of right to PD-35 according to the share of involvement.

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Deino said:

Pardon and again I hope not to offend anyone. Can we stay realistic???

These "equivalent to F15 engines" however are around in the US since the late 1970s and from where the hell do you come to the conclusion that "upgraded WS10s reach the F22 engine’s performance"???

Not sure if some are so much blinded by wishfull-thinking or what they are smoking, but to compare a WS-10XYZ with roughly 140kN (thrust to weight ratio of 7.5:1) with a F119 with +155kn (thrust to weight ratio of 9:1) and this again is not a new engine.

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gelgoog said:

No kidding. Also with regards to China's engine technology being behind only the USA like he said. That's bullshit. China is behind Russia, France, and the UK as well for example.

You don't have to believe me. Just look at the specs for the Snecma M88 or the Eurojet EJ2000 in terms of thrust-to-weight ratio or specific fuel consumption. Even Japan's IHI XF5 slightly beats the WS-10 in those parameters. Also, those French and UK engines are not even state of the art anymore being both put into service in the 1990s.

The WS-15 is supposed to have 5th gen performance but it is still not in actual use and AFAIK has not even been flight tested yet.

Tremendous achievements have been made by China in the engine sector but it is still not at the level it needs to be.

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latenlazy said:

Because the development cycle for jet engines is so long it’s very difficult assessing where China is today. This is one of those situations where the advancement of technological base can move faster than the product cycle. It will very interesting to see what the WS-15 will look like, and what will succeed it.

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by78 said:

Engines from the Zhuhai Airshow. All images are high-resolution...

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