according to news russia agree to supply directly to pakistan RD93 it jf 17 not have more engine problam but it also mean ws13 still not ready in near future
Chinese Engine Development
- Thread starter jackbh
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according to news russia agree to supply directly to pakistan RD93 it jf 17 not have more engine problam but it also mean ws13 still not ready in near future
some new articles on the progress of WS-10A
it basically said that they have managed to reduce the production time of the forward section of the engine (or something like that) from 150 days to 34 days. This part is the most important component of the core of the engine. Basically saying that this allows for mass production of the engine. A lot of propoganda and stuff.
saying certain high altitude flight testing of WS-10 started in September 7th and is finally finished? Actually, now I see that it's mentionning a new version of WS-10 doing high altitude flight testing. Not sure which one it is talking about. Could be the version with TVC nozzle or the one with increased thrust rating (like to T/W ratio of 9)
oringo
Junior Member
tphuang, thanks for the news update. I heard that Liming got a lot of help from America in terms of forging technology for those critical turbofan parts. With the Russians racing to sell Su-27/30/J11 upgrade engines to China, what do you think WS-10's chances are at this point for replacing the Russion engines?
skyhawk2005
Banned Idiot
Why would America help China develop a critical component of a Jet engine?
You must be smoking something if you think that would happen when USA has embargoed China on all high tech items, especially military related.
It took China a very very long time to get to where they are today, and their success is a result of extremely dedicated effort and work.
oringo
Junior Member
I didn't say American governent. You are obviously ill-informed. GE has been helping China for a long time on turbine technologies. These technologies are not banned, otherwise GE, the largest jet engine maker in America, wouldn't risk its capital to have a joint venture with Liming.
Turbofan engines are very hard to get right due to the extreme high temperature, pressure, and life-cycle requirements. The mechanical design of those engines are relatively simple compared to the amount of effort put into the material science engineering and quality control. I'm not putting China down, but there are certain things we know that China need help on. For example, even today, China's steel forges still can't produce high-grade steel that enables Chinese subs to dive to 600m.
I don't believe GE is helping China at all in designing and developing turbine technologies. They are not allowed to and they are clearly under watch. The only help they provide China is selling turbines and engines, and building a support infrastructure where they can be maintained.
The Chinese is pretty much alone on this, and that's the reason why it is taking them some time. For even with the Russians that is a conflict of interest as they are interested in keeping China's technology low so they can sell their products to her.
Since 2002, China managed to develop crystal blades. That is a breakthrough that helped the WS-10A come to this stage. Still, that is only one of many issues that had to be resolved. I think the current problem lies even with the design down right pat, they cannot make the engines in the quantities and time scale they want. So we can expect the next few years where both Russian and Chinese sourced engines will have to be concurrently used in the new fighters and fighter upgrades.
The Chinese is pretty much alone on this, and that's the reason why it is taking them some time. For even with the Russians that is a conflict of interest as they are interested in keeping China's technology low so they can sell their products to her.
Since 2002, China managed to develop crystal blades. That is a breakthrough that helped the WS-10A come to this stage. Still, that is only one of many issues that had to be resolved. I think the current problem lies even with the design down right pat, they cannot make the engines in the quantities and time scale they want. So we can expect the next few years where both Russian and Chinese sourced engines will have to be concurrently used in the new fighters and fighter upgrades.
oringo
Junior Member
I've posted this link a few times on this forum:
GE does have a joint venture with China's Liming and there is no doubt Liming received GE's technological help. For beginners, the joint venture is a part supplier for GE's gas turbines, and therefore if its parts cannot meet GE's quality requirements, GE will tell them what to do to get it right. This is a standard quality control procedure.
skyhawk2005
Banned Idiot
It's dated 2005. China's been working on it's indigenous engine WS10A for 3 decades.
You are a ***** if you think GE or any US company will be allowed to help China advance her knowledge of something as critical as Turbojet engine!
WATCH YOUR LANGUAGE!
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That is power generation, not aviation engines. The requirements for such is not the same. Even a stationary version of the WS-10A has been made since last year.
oringo
Junior Member
Crobato, there's not much difference between gas turbines and turbofans. Just ask Popeye, he's seen the first of gas turbines installed on the naval ships.