Chinese Engine Development

Hendrik_2000

Lieutenant General
From the horses mouth, China GT technology gap with the west narrowed according the head of AVIC responsible for research and design of Turbo fan engine. Effort is underway to design high thrust engine, variable engine, etc. He said that one of the blade that took 6 years to design was completely destroy in 60 second when they put it in the bench test! But they eventually worked out all the kink. It take a long time to perfect GT
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China's technology gap with leading countries like the US in terms of jet engines has been narrowed, and advanced technologies such as higher thrust-weight ratio, vector thrust control and variable cycle are likely under development, analysts said on Wednesday.

China has gained full ability to independently develop engines for military aircraft - from designing to manufacturing, then from experimenting to test flights, Li Zhiqiang, a member of the National Committee of the Chinese People's Political Consultative Conference, said in a report by China Central Television (CCTV) on Tuesday.

Li, also the head of the Manufacturing Technology Institute of the state-owned Aviation Industry Corporation of China, which is the major contractor of warplanes of the Chinese People's Liberation Army, said that jet engines are the heart of aircraft, and China must be able to independently supply such engines, since importing them will inevitably limit the capabilities of Chinese warplanes.


Since the 1990s, Li has led researchers in developing advanced jet engines, building a dedicated laboratory to develop aviation components, with a focus on the hot forming and superplastic forming of titanium alloy, CCTV reported, noting that even the smallest component would need to undergo hundreds or thousands of tests.

People said in the past that China was 20 to 30 years behind leading countries like the US in terms of jet engine development, and this gap is now being narrowed, possibly to 10 to 15 years, Wang Ya'nan, chief editor of Aerospace Knowledge magazine, told the Global Times on Wednesday.
 
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Maikeru

Major
Registered Member
What does being 10-15 years behind the West mean in practical terms, given that the engines in current Western fighters were all designed at least 10 years ago?
 

Hendrik_2000

Lieutenant General
What does being 10-15 years behind the West mean in practical terms, given that the engines in current Western fighters were all designed at least 10 years ago?
It normally take 2 decades to perfect GT engine. some civilian GT takes 3 decades to develop. So I don't know where you got designed 10 years ago. The western company normally split the development into 2 preliminary study and prototype development, and normally self funding. Meaning they developed the engine first and the jet fighter latter. Whereas before china start development of engine and fighter at the same time. and normally the engine take much longer time That is why it give the appearance of Chinese engine is "late". But now with consolidation of Chinese engine companies into AEEC not sure I got right here, china follow western practice with bigger fund and bigger research capacity before it was fragmented with each of design company doing their own engine!
 

56860

Senior Member
Registered Member
It normally take 2 decades to perfect GT engine. some civilian GT takes 3 decades to develop. So I don't know where you got designed 10 years ago. The western company normally split the development into 2 preliminary study and prototype development, and normally self funding. Meaning they developed the engine first and the jet fighter latter. Whereas before china start development of engine and fighter at the same time. and normally the engine take much longer time That is why it give the appearance of Chinese engine is "late". But now with consolidation of Chinese engine companies into AEEC not sure I got right here, china follow western practice with bigger fund and bigger research capacity before it was fragmented with each of design company doing their own engine!
China basically has a complete supply chain of military engines under its belt at this point so I would expect improved variants to come much faster. The industrial and scientific base of China has grown to the point where we have a very solid foundation to work off from.
 

LCR34

Junior Member
Registered Member
The commentator said: Our nation's small bypass thrust vectoring turbofan for gen 5 (4 in china) heavy and medium jet is WS15, also known as EMEI, which has been tested extensive rounds and many parameters has seen improvements.

My take: We all know that FC31/J35 will be equipped by a medium thrust turbofan, likely WS13E/WS19, not WS15. This merely says testing, nothing else.
 
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