Chengdu J-20 5th Generation Aircraft News & Discussions

Some people here live in the past and are ignorant of the progress that China made in a whole slew of dual-use technology like Gas Turbine China is now ahead in Gas Turbine according to ASPI

In particular, China has made strides in dual-use technologies that have possible military applications. There are 24 categories classified as being at high risk of being monopolized by a country, including radar, satellite positioning and drones.

When it comes to citations related to hypersonic detection and tracking, China has a 73% share, the U.S. has 13% and the U.K. 3%. For advanced aircraft engines, China leads with 63% while the U.S. trails at 7%.

Here is the video that explains the genesis and development of the WS10 engine and the variants WS 10B, and WS 10C, and Why the latest variant already approaches the initial spec of WS 15. The number may be doubtful but the gist of the story is correct. It is 2 different engines for 2 different applications. He also confirms the requirement for 5th Gen fighters as Stealth, supercruise,350 Deg situation awareness, AESA radar, and EW capability. WS 10C engine is now probably 95% of F119 Thrust but the combination with lifting body, LERX, Delta wing, and Canard it approaches the maneuverability of F-22 even without thrust vectoring

WS 15 spec was upgraded and it is intended for J20 B and not for J20 A, as they are now fitted with WS 10C
 
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In particular, China has made strides in dual-use technologies that have possible military applications. There are 24 categories classified as being at high risk of being monopolized by a country, including radar, satellite positioning and drones.
Many private enterprises in China are now involved in military industrial projects. China has a set of national standards for private enterprises participating in military industrial projects. All enterprises that meet this standard can apply to join military industrial projects. If some private enterprises' projects and technologies are found by the military to be applicable in the military industrial field, the military will also proactively contact these enterprises for negotiations. The military usually provides a substantial fee to subsidize these enterprises' R&D investments, encouraging them to continue their research and development, and offers the most needed orders. Of course, military representatives and security personnel will also be stationed at these enterprises to prevent leaks.

Many young civilian researchers are now forming teams for military technology R&D, eagerly hoping to gain military attention after achieving some results. This is a shortcut to their success!

The "Twin-tail Scorpion" series of large drones extensively equipped by the PLA is the result of military-civilian cooperation. It was originally a drone developed by two Chinese private enterprises for delivering courier goods.
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In the field of turbofan engines, many private enterprises are also involved. However, they must maintain strict confidentiality.
 
Some people here live in the past and are ignorant of the progress that China made in a whole slew of dual-use technology like Gas Turbine China is now ahead in Gas Turbine according to ASPI

In particular, China has made strides in dual-use technologies that have possible military applications. There are 24 categories classified as being at high risk of being monopolized by a country, including radar, satellite positioning and drones.

When it comes to citations related to hypersonic detection and tracking, China has a 73% share, the U.S. has 13% and the U.K. 3%. For advanced aircraft engines, China leads with 63% while the U.S. trails at 7%.

Here is the video that explains the genesis and development of the WS10 engine and the variants WS 10B, and WS 10C, and Why the latest variant already approaches the initial spec of WS 15. The number may be doubtful but the gist of the story is correct. It is 2 different engines for 2 different applications. He also confirms the requirement for 5th Gen fighters as Stealth, supercruise,350 Deg situation awareness, AESA radar, and EW capability. WS 10C engine is now probably 95% of F119 Thrust but the combination with lifting body, LERX, Delta wing, and Canard it approaches the maneuverability of F-22 even without thrust vectoring

WS 15 spec was upgraded and it is intended for J20 B and not for J20 A, as they are now fitted with WS 10C
But other engine specifications are not on par with F119 like engine life MTBO (meantime between overhaul) etc etc
 
But other engine specifications are not on par with F119 like engine life MTBO (meantime between overhaul) etc etc
How do you know? China doesn't release that kind of Info. Back in the 2010s, China used the Russian AL31F engine and found out they have poor reliability. So China initiated a component replacement program using China's manufacturing components and improved the MTBO from 900hr to 1500 hr There is a video or report about Maintenance facilities in Sichuan that do that! That was back in the 2010s imagine China's progress in the last 15 years.Here it is I found it

China makes modifications to Russian Salyut AL-31F jet engine

Reuben F Johnson JDW Correspondent - Kiev

Key Points
The PLAAF has developed its own upgrade for the Russian-made Salyut AL-31F jet engine

The development demonstrates that the Chinese have achieved near autonomy in supporting their fighters' Russian-made engines


The Chinese People's Liberation Army Air Force (PLAAF) has developed its own service life extension modifications for the Russian-made Salyut AL-31F engine, a Moscow-based defence and foreign policy think-tank has reported.

The modifications to the AL-31F/FN P.2 series engine increase its operational limits by more than 65 per cent - from 900 to 1,500 flight hours, according to the privately owned Centre for the Analysis of Strategies and Technologies (CAST).

The AL-31F engine is the powerplant for several types of aircraft in the PLAAF inventory: the Sukhoi Su-27 (which is also licence-produced at the Shenyang Aircraft Works as the J-11), the Su-30MKK and the Chengdu Aerospace Corporation J-10. The AL-31FN is a special derivative of the original AL-31F design that was developed by the Salyut plant in Moscow for a single-engine application to b
e fitted to the J-10.

The service life modifications were reportedly developed at the PLAAF Overhaul Plant Number 5719. The key to the service life extension is a specific set of improved, Chinese-made components that are part of what is described as a "re-manufacturing kit" that is introduced during the process of a full-scale remanufacturing and overhaul process.

The plant is located near the city of Chengdu in Sichuan province, employs 2,000 personnel and is reported to be a model of innovation within the PLAAF's network of repair plants. During the past several years the facility has initiated 63 different research and development programmes and has been awarded more than 20 state prizes for achievements in technological innovation. In the same time period, the plant's assets have more than doubled from CNY1.1 billion (USD147.2 million) in 2004 to CNY2.9 billion today.

The plant's officials credit the success of their overhaul process to a decision taken in 2004, when some of the first AL-31F engines were presented to the plant by the PLAAF for overhaul. A decision was taken, according to the Chinese news sources originally cited, to completely reorganise the overhaul process. This streamlining of the overhaul disassembly and servicing line resulted in a 27.3 per cent decrease in the time required to complete an overhaul and increased the plant's production capacity by 60 per cent.

This level of improvement in the engine's design demonstrates that the Chinese have achieved near autonomy in the support of these Russian-made engines. Russian specialists who spoke to Jane's state that this is "another example of how the technology sold to the Chinese during the 1990s has now been fully assimilated by them. It is only a matter of time before the engines that China produces will be as good as or better than anything designed here in Russia".
 
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I can't find the link but here is it rehash from the same source

The Chinese People's Liberation Army Air Force (PLAAF) has developed its own service life extension modifications for the Russian-made Salyut AL-31F engine, a Moscow-based defence and foreign policy think-tank has reported.

The modifications to the AL-31F/FN P.2 series engine increase its operational limits by more than 65 per cent - from 900 to 1,500 flight hours, according to the privately owned Centre for the Analysis of Strategies and Technologies (CAST).

The AL-31F engine is the powerplant for several types of aircraft in the PLAAF inventory: the Sukhoi Su-27 (which is also licence-produced at the Shenyang Aircraft Works as the J-11), the Su-30MKK and the Chengdu Aerospace Corporation J-10. The AL-31FN is a special derivative of the original AL-31F design that was developed by the Salyut plant in Moscow for a single-engine application to be fitted to the J-10.

The service life modifications were reportedly developed at the PLAAF Overhaul Plant Number 5719. The key to the service life extension is a specific set of improved, Chinese-made components that are part of what is described as a "re-manufacturing kit" that is introduced during the process of a full-scale remanufacturing and overhaul process.

The plant is located near the city of Chengdu in Sichuan province, employs 2,000 personnel and is reported to be a model of innovation within the PLAAF's network of repair plants. During the past several years the facility has initiated 63 different research and development programmes and has been awarded more than 20 state prizes for achievements in technological innovation. In the same time period, the plant's assets have more than doubled from CNY1.1 billion (USD147.2 million) in 2004 to CNY2.9 billion today.


The plant's officials credit the success of their overhaul process to a decision taken in 2004, when some of the first AL-31F engines were presented to the plant by the PLAAF for overhaul. A decision was taken, according to the Chinese news sources originally cited, to completely reorganise the overhaul process. This streamlining of the overhaul disassembly and servicing line resulted in a 27.3 per cent decrease in the time required to complete an overhaul and increased the plant's production capacity by 60 per cent.
 
How do you know? China doesn't release that kind of Info. Back in the 2010s, China used the Russian AL31F engine and found out they have poor reliability. So China initiated a component replacement program using China's manufacturing components and improved the MTBO from 900hr to 1500 hr There is a video or report about Maintenance facilities in Sichuan that do that! That was back in the 2010s imagine China's progress in the last 15 years.Here it is I found it

China makes modifications to Russian Salyut AL-31F jet engine

Reuben F Johnson JDW Correspondent - Kiev

Key Points
The PLAAF has developed its own upgrade for the Russian-made Salyut AL-31F jet engine

The development demonstrates that the Chinese have achieved near autonomy in supporting their fighters' Russian-made engines


The Chinese People's Liberation Army Air Force (PLAAF) has developed its own service life extension modifications for the Russian-made Salyut AL-31F engine, a Moscow-based defence and foreign policy think-tank has reported.

The modifications to the AL-31F/FN P.2 series engine increase its operational limits by more than 65 per cent - from 900 to 1,500 flight hours, according to the privately owned Centre for the Analysis of Strategies and Technologies (CAST).

The AL-31F engine is the powerplant for several types of aircraft in the PLAAF inventory: the Sukhoi Su-27 (which is also licence-produced at the Shenyang Aircraft Works as the J-11), the Su-30MKK and the Chengdu Aerospace Corporation J-10. The AL-31FN is a special derivative of the original AL-31F design that was developed by the Salyut plant in Moscow for a single-engine application to b
e fitted to the J-10.

The service life modifications were reportedly developed at the PLAAF Overhaul Plant Number 5719. The key to the service life extension is a specific set of improved, Chinese-made components that are part of what is described as a "re-manufacturing kit" that is introduced during the process of a full-scale remanufacturing and overhaul process.

The plant is located near the city of Chengdu in Sichuan province, employs 2,000 personnel and is reported to be a model of innovation within the PLAAF's network of repair plants. During the past several years the facility has initiated 63 different research and development programmes and has been awarded more than 20 state prizes for achievements in technological innovation. In the same time period, the plant's assets have more than doubled from CNY1.1 billion (USD147.2 million) in 2004 to CNY2.9 billion today.

The plant's officials credit the success of their overhaul process to a decision taken in 2004, when some of the first AL-31F engines were presented to the plant by the PLAAF for overhaul. A decision was taken, according to the Chinese news sources originally cited, to completely reorganise the overhaul process. This streamlining of the overhaul disassembly and servicing line resulted in a 27.3 per cent decrease in the time required to complete an overhaul and increased the plant's production capacity by 60 per cent.

This level of improvement in the engine's design demonstrates that the Chinese have achieved near autonomy in the support of these Russian-made engines. Russian specialists who spoke to Jane's state that this is "another example of how the technology sold to the Chinese during the 1990s has now been fully assimilated by them. It is only a matter of time before the engines that China produces will be as good as or better than anything designed here in Russia".
Still not par at P&W F100/129 let alone F119 you're just a beginner of jet engine development fields and west is developing jet engines since WW2 they have lots of experience
 
Still not par at P&W F100/129 let alone F119 you're just a beginner of jet engine development fields and west is developing jet engines since WW2 they have lots of experience
Read my Lips past performance does not guarantee future success. Field after field China now surpasses the West, eg car industry, shipping industry, HSR, Solar, and wind energy.Space and satellite industry. Now even in Gas Turbines design how many countries can build High thrust engines with T/W of 10 only 2 US and China. Go ahead live in your delusion
 
Read my Lips past performance does not guarantee future success. Field after field China now surpasses the West, eg car industry, shipping industry, HSR, Solar, and wind energy.Space and satellite industry. Now even in Gas Turbines design how many countries can build High thrust engines with T/W of 10 only 2 US and China. Go ahead live in your delusion
The US is still ahead In engine. But china is catching up fast with ws-15. Progress takes time. Nothing can be achieved overnight.
 
Read my Lips past performance does not guarantee future success. Field after field China now surpasses the West, eg car industry, shipping industry, HSR, Solar, and wind energy.Space and satellite industry. Now even in Gas Turbines design how many countries can build High thrust engines with T/W of 10 only 2 US and China. Go ahead live in your delusion
You're just a kid who don't think logically

And jet engine development is one of the most difficult fields in the world you're just a beginner, you were started your first turbofan project in late 80s west developing T/W 10 engines since early 70

Sorry dude your mental disability has no cure
 
You're just a kid who don't think logically

And jet engine development is one of the most difficult fields in the world you're just a beginner, you were started your first turbofan project in late 80s west developing T/W 10 engines since early 70

Sorry dude your mental disability has no cure
Ws-15 has a maximum thrust of 156 kn 35000 lbf which is around the same ballpark of f119
 
China has made leap forward in the past few years. A few years ago china didn't have any domestic engine nor in mass production. There's no country that is advancing as fast as china does across all field. Not everything can be done overnight. China might lack in certain field but also a leader in others. Even the United states to this date doesn't have an equivalent of df-17 which has been in pla service since 2019 lol.
 

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