" but why should I be a China-basher or why do some claim I wish any harm only due to my conclusion it uses a Russian originated engine?"
You got misled, I am afraid. I don't detected a China bashing bone in you. I admit. I have read a few of your published articles. They are highly neutral in tones, and you tell only a little of what you actually knew. I won't call you a "China fanboy". They got this impression may be because you knew so much, while they knew so little.
"Maybe those people are CIA (Chinese Intel Agency, I mean PRC spy) who don't want people to know about Chinese real capability, or maybe they are clueless. But just leave them alone. "
That's what I have been suggesting. They were ordered to do so. But the phase of
Strategic Deception is over, IMO. The war clouds are gathering over China and Russia and the rest of the world.
Strong deterrence, should take the center stage, to prevent war.
Massive number of the highly capable J-20, will be at the forefront, of this conventional force deterrent.
"Finally there are few who think it is a mystical hybrid or Frankenstein WS-10X based on the WS-10's core mated with an AL-31FN-nozzle + other certain modifications to fool us ..."
I am one of those guys. But let's get this straight.
1.) I think the prototype WS-15, that first flew on J-20, in 2011, was an engine with a WS-15 engine core,
not WS-10 core.
2.) It was not mated with AL-31FN-Nozzle. It was an original
3D TVC nozzle. made in China. Its external appearance
happen to look like the AL-31FN Nozzle.
3.) This similarity was not intentional, but incidental. It was not meant to fool anyone.
4.) The fact that many people
confused J-20's engine with AL-31FN, is no fault of the designers.
"Following nearly all others, here at PDF, the WS-15 has finished bench testing, and is ready to enter flight testing "soon""
Not "soon", but already done. The ground bench testing has already completed, over a decade ago. And took flight testing onboard of J-20 has taken place on
Jan. 2011.
The fact that WS-15's engine core, has entered ground bench testing, and meet all design parameters specifications, in 2005, is not just my personal opinion.
As I have mentioned earlier, an insider has revealed this ground bench testing, in a long article in China's
"Ordnance Industry Science Technology", 2007, Vol. 7.
"For China's New Generation of Fighters - A Study on China's High Thrust to Weight Ratio TurboFan Engine Core's Development"
You can do a machine translation here, and read it, if you don't believe me.
http://bbs.tiexue.net/post2_7040813_1.html
It's safe to say, all the people here at PDF added together, don't know WS-15's engine core more than this engineer, who wrote this article and worked in this project.
Thanks
@Asok for the link, it's a good yet "thick" read... moderately long article filled up with many technical stuffs... very tough for a layman like me, EVEN IF it's presented in plain English language...which is not the case.
Inside the Chinese high performance turbofan engine core machine
Early 2014
Introduction: from the design and verification of a part, the high thrust weight ratio core engine high pressure compressor, the main combustion chamber, high pressure turbine three core components and the development of axisymmetric vectoring nozzle......
The secret of China's high thrust weight ratio turbofan engine core machine development
If the modern combat aircraft is a crown to high-tech, then the top aero engine is the crown jewel.
At present there are more than 10 countries in the world having the capabilities to design and manufacture aircraft, but only a handful of countries that are capable of conducting the independent research and development of aero engines. Throughout the development of advanced turbojet and turbofan engines by the United States. Russia and Europe, they did not start the study from advanced stage, but first through the core engine development, and then through the verification of machine development. The so-called core machine, is the gas turbine engine by high pressure compressor, combustion chamber and turbine three main components and related accessories consisting of a core part of the engine. Based on the core machine with necessary modifications, with a fan, low pressure turbine, afterburner, control system and drive system and other corresponding components can be developed for military turbofan engine, civil turbofan engine, ship gas turbine engine and a series of. The world aviation has many engine models,
but there are only a few core engines, and the core engine has the most important role.
Core engine technology is the highest technical secrets of a country - they are tightly guarded by the foreign countries. So, under this situation, how did China develop its aero engine having the high performance turbofan core engine?
A prior study results achieved
From the last century since the late 50s, China has independently developed ways of aeroengine exploration, although hard, but did not go to the formation of equipment this step, keep on imports, imitation and modification to meet the new need of military aero engine research. But to get only three or four stream technology and products, even the second rate can not buy, not to mention the top class. Until today, China's aviation engine in service are more or less with foreign origin.
If Chinese are to build the advanced fighter aircraft of their own, then we must have its own aircraft engines, so as not to be under the heteronomy in the key areas, because the weapons are "sensitive" to any country, no country will selflessly "arm" other countries with their own key technology. Therefore, our country started the development of high thrust weight ratio turbofan engine in the development of a new generation fighter at the same time.
High performance turbofan engine is the first program in China from the beginning of research in advance, and then become a model, and installed the background clear air power projects. It is opposite to our country in service and other in aero engine research, and is a comprehensive technology of aero engine across generations. Therefore, it has independently developed the whole process of aero engine for China to walk, to narrow the gap with western developed countries, to provide power equipment qualified for a new generation of fighters are loaded with huge trust and hope! "Ten years", the last century at the end of 90s, China's advance research of high thrust weight ratio turbofan engine, completed its basic components development, test and core machine design a series of technical support, to achieve the pre research stage of the development target. As the main development unit China Gas Turbine Research Institute of AVIC I intend to take breath, a new generation of fighter aircraft and high thrust weight ratio turbofan engine with matching together is listed as the national major scientific breakthrough project. The task is clear, development of high thrust weight ratio of core engine, test machine and the model for later research foundation. High performance turbofan engine core machine, air power is peak too never climb to the top of our country, and in front of the cross climber is composed of more than 160 key technical .... 160余项关键技术构成的雄关险隘。
[...]
In the turbo ground test platform, the core machine by high thrust weight ratio have a sense of rhythm, a tight like a fighter, as long as the whistle day sprint! The operation before the screen, technicians staring at a computer screen on the green curve of high thrust weight ratio of core engine, all eyes looked at all kinds of instruments, they held my breath. Visitors to visit the room, leader of the study, the use of military experts, some stand up, they leave the seat went to the big screen, close observation of the running state of high thrust weight ratio of core engine, concern is seen on the face. With the throttle slowly goes up, pushing high than the core machine issued a howling is more compact, smooth curves reflect the green thrust through the "resonance", all the way up, until the maximum state vertex. The success of the test! This is the core engine ground test of high thrust weight ratio of a history of China's aviation industry moment - China has independently developed technology, cross generation, with the international advanced level reached the maximum, Chinese marks the most advanced turbofan aeroengine is developed and crossed - heavy man! For this moment, a turbo and more than 50 research units in our country. Thousands of people have done for the full 15 years of struggle. Then the researchers and not because of "a little" victory and pleased with oneself, but also successfully completed all done in one vigorous effort, ground test bench. The high thrust weight ratio turbofan engine core machine in China was born
Seven, the conclusion
In 15 years, thousands of people participate in Research Institute and AVIC turbo units to tackle together from the exploration and breakthrough of a key technology, from the beginning of the design and verification of a part, step by step, the high pressure compressor, high thrust weight ratio of core engine main combustion chamber, high pressure turbine developed three core components and Aven, has gone through the design, preparation of documents until the core engine technology design core machine engineering drawing design and related technology and processing plant - core - core machine assembly machine in Turbo ground station on fire a successful and smooth push to idle state test to test all the maximum ground state on the ground. High performance machine core facing the wind and rain hard, along the way, has created more than 80 domestic aviation engine first developed. The success of high thrust weight ratio of core engine research, China in aero engine development history wrote a thick and heavy in colours.
The successful development of high performance core engine, for our country in the ascent of air power during the peak of high thrust weight ratio to set up "camp", the "base camp", our country will be able to schedule the conquest of high thrust weight ratio turbofan aeroengine peak, the new generation of war machine in China sent to the sky.
In twenty-first Century the engine requires a high thrust weight ratio to reduce the structural weight, development and manufacturing costs, which made more stringent requirements on the manufacturing technology, the engine structure process tougher. Therefore, foreign countries will study new manufacturing technology group.
[...]
