China Flanker thread

[challenge]

trahttp://www.wforum.com/wmf/posts/1115703827.html

tracking range capability of wertern airborne radar.
while the topic has nothing to do with Chinese forum, nevertheless it give you the idea the capaility of western radar.
P<S> detection range for russian IRBIS PESA radar is 400KM.

[crobato]

I always take detection range claims with a grain of salt. If you want to know, one claim for the KJ-2000's detection range is 650km against an RCS the size of a basketball.

[Subetei]

Just so I can get it clear in my mind, Chinese Flankers can be categorised as follows:

Single Seat Air Superiority
Su27 (Imported) J-11 (Domestic production) Production stopped
Su-33 (Will discuss in separate thread)

Single Seat Multi Role
J-11B (Domestic) Analogous to Su-27SMK
Production ongoing with WS-10 engine
Dual Seat (Tandem) Multi Role
Su-30MKK (Imported) J-11BS (Domestic) Production ongoing with WS-10 engine

Correct?

[crobato]

I think Su-30MKK/MK2 will remain as the main strike fighter and stand off platform for a while. The J-11BS would be the UBK analog to the J-11B. In other words, a trainer. The J-11B/BS can carry PGMs, but it would like the J-10, LGBs and LS-6 glide bombs, not long range stand off missiles or antiship missiles like the Su-30MK2/Kh-31A. That will be more of the JH-7A's department.

So the MKK and the J-11B/BS has some overlap, but not in the stand off missiles part (Kh-59ME, Kh-31A/P). The Chinese equivalents for the latter (KD-88 and YJ-91) appear only on the JH-7A for now.

[Subetei]

Thanks.

So the success of the JH-7A suggests no rush for China to develop a tandem (side-by-side) Flanker with stand of capabilities for the Air Force. Perhaps a longer term goal, if at all? Unless the requirement comes from the Navy?

[crobato]

I get the impression that the PLAAF and PLANAF are satisfied on the JH-7A now, and there is no rush to develop a side by side version of the Flanker ala Su-34. The PLANAF though I suspect may procure the Su-33UBK (side by side) for training purposes, but not in the strike role. I think the JH-7A may still evolve a bit further, like having more powerful engines.

[tphuang]

yeah, I agree with Chris. It seems like there are more pressing concerns right now than developing something like su-34. SAC has a lot of work on their hand with the naval fighter, 5th generation fighter + anti-air UCAV.

[tphuang]

some rumours on J-11B


现在航空工业都在庆祝出头之日，几个月前，毛子监工前来我们沈飞送一些原料和配件，也怪咱们没有看好，他们 竟然看到了咱们歼11b的部分生产线，然后他们是勃然大怒，大叫：“奶奶的，竟然把俺们飞机改成这样？还有 没有天理，还让不让我们以后新su35出口啊？？？”然后哭天抢地的回家了…………
这些毛子回家后可不要紧，不知进了什么谗言，惹得大毛子和毛子头们雷霆大发，把原来能够卖给咱们的原料、配 件直到al31系列发动机统统停止出售，要给咱们断粮！但是殊不知我们航空工业等的就是这一天，原来由于进 口回扣作怪，某些腐败官员指定咱们航空工业生产厂只能从毛子或者其他洋鬼子那里购买原料或者零部件，现在人 家不让买了，咱们航空工业终于能出一口气，把专门给国内主机厂配套的国内原料和零部件厂都召集起来，告诉他 们：“兄弟们，可以出头了！不用仅仅小批生产或者出口美国波音麦道让人家用了，自己飞机终于可以用了！！！ ”
刚开始说钛合金没着落，有官僚（不知出于什么原因，回扣？）还竟然指定宝钢作为专门供应商——放着专门冶炼 钛的厂子不用！可惜宝钢的材料不合格，于是就用我们西部某单位得了，好用得很，沈飞工厂的工人称赞国产钛合 金比原来进口的只好不差！特种钢材刚开始又莫名其妙指定本钢生产，又是不合格，于是又到西部三线单位找到了 比原来进口的只好不差的特种钢，呵呵，至于航电，早就不用毛子得了，发动机现在也有太行可用——所以，毛子 断粮之后不久，咱们自己就解决了所有一系列问题，真是效率很高啊！
现在这个世道，咱们要想大发展，还非要人家卡脖子或者断粮，不给压力，不把我们逼到墙角，某些人的思想和行 动都是不能转变过来的！所以，我们爱国者必须拥护立足自力更生的胡总书记，拥护他的国防政策，只有他的政策 才能让国防和经济协调发展！

basically saying that the Russians visiting SAC saw part of J-11B's production line while delivering some components a few months back. Got worried that they won't be able to export any Su-35 to China, so went home and got their bosses to stop exporting these individual components/parts. But the thing is that the local manufacturers have been waiting for this moment, because people involved with the exports make too much kick backs from the transactions to stop the import. So, now they are forced to accept the local stuff and the parts are working pretty well.

[challenge]

I think Su-30MKK/MK2 will remain as the main strike fighter and stand off platform for a while. The J-11BS would be the UBK analog to the J-11B. In other words, a trainer. The J-11B/BS can carry PGMs, but it would like the J-10, LGBs and LS-6 glide bombs, not long range stand off missiles or antiship missiles like the Su-30MK2/Kh-31A. That will be more of the JH-7A's department.

So the MKK and the J-11B/BS has some overlap, but not in the stand off missiles part (Kh-59ME, Kh-31A/P). The Chinese equivalents for the latter (KD-88 and YJ-91) appear only on the JH-7A for now.

J-11B more or less compatible to SU-27SKM,like J-11B,su-27SKM can fire guide weapon,reduction of RCS,multi function display,improve radar and avionic.
it is not known if SU-27SKM like SU-30MKK carry radar cancellation system. radar cancellation technique is highly classified ECM, aside from Russia,french rafale and USAF B-1 and B-2 also carry radar cancellation design to defeat low frequency band antenna,according to the report the RF is very similiar SAR radar band.

[AssassinsMace]

The Russians are worried that China won't buy any Su-35s after seeing the J-11B's? Does that mean they have seen or see J-11Bs with domestic TVC engines soon?

[tphuang]

The Russians are worried that China won't buy any Su-35s after seeing the J-11B's? Does that mean they have seen or see J-11Bs with domestic TVC engines soon?

probably not, but that's why the Russians don't want to just supply 117S to China. It's either su-35 or nothing.

[crobato]

Final proof (after a long time) for what I have been saying for years now, and what a number of articles have suggested, that the J-11s are R-77 capable. From Hui Tong's CMA site and cnr.cn.

[challenge]

http://www.wforum.com/wmf/posts/1115720971.html

brief history of development of tactical data link in China.

[zhouj]

Final proof (after a long time) for what I have been saying for years now, and what a number of articles have suggested, that the J-11s are R-77 capable. From Hui Tong's CMA site and cnr.cn.

Is there any real reason to use the R-77 over the PL-12? I'm curious because from practice, the PLAAF seem to rather use more indigenous hardware and given that the PL-12 has supposedly superior range than the R-77, why is the ability to use R-77 significant?

I know that the two missiles use the same datalink but it would seem to be obvious that the J-11 would be able to fit the PL-12. (Why bother developing a top-end missile if your top-end aircraft can't carry it?)

[zyun8288]

Because in real life, things are more complicated. The early versions of J11 are either 100% or mostly Russian stuff. When you take into account of all the factors (life remained, cost etc...), latest is not always the best fit.

[crobato]

Is there any real reason to use the R-77 over the PL-12? I'm curious because from practice, the PLAAF seem to rather use more indigenous hardware and given that the PL-12 has supposedly superior range than the R-77, why is the ability to use R-77 significant?

I know that the two missiles use the same datalink but it would seem to be obvious that the J-11 would be able to fit the PL-12. (Why bother developing a top-end missile if your top-end aircraft can't carry it?)

The J-11s would already have this capability for quite some time long before there was J-11B and PL-12. I have been trying to point this for quite some time now (for years even) in the AFM, ACIG and CDF forums. There are articles that pertain or align to that capability but without actual picture proof---which seemed very hard to get---its hard to convince anyone.

As a matter of fact, this capability should have appeared with the PLAAF as early as 2001.

Knowing this, adding 105 plus J-11s along with 28 Su-27UBKs with ARH capability, significantly increases the combat potential of the PLAAF vs. regional airforces, in addition to the near 100 Su-30MKK with R-77s, 100 plus J-10s with PL-12 and over 120 plus J-8F with PL-12.

[simonov]

Its mean include The Su-27 Sk the receive in 90's they have around 300 Flankers. How about J-11B? How many J-11B in the field now? thx

[challenge]

Because in real life, things are more complicated. The early versions of J11 are either 100% or mostly Russian stuff. When you take into account of all the factors (life remained, cost etc...), latest is not always the best fit.

the original J-11 or SU-27SK radar and avionics are basically late 60's technology,being label as "F-16 on steroid".although russia willing to offer more advance version, but PLAAF surprisingly opt for older SU-27SK.

[simonov]

why PLAAF more choose the obsolete radar? Are now they modified all radar their flanker fleet?

[crobato]

Its mean include The Su-27 Sk the receive in 90's they have around 300 Flankers. How about J-11B? How many J-11B in the field now? thx


We don't really know that. But when the time comes, we can expect it will be a regiment size for start --- 24 to 32 aircraft.

[crobato]

why PLAAF more choose the obsolete radar? Are now they modified all radar their flanker fleet?


The radar itself was developed around the eighties, and reflects the technology level then (e.g. Intel 8080/8088 processor). The development level of the Russian processors for the N001E radar is about that. At the time when the Su-27SK was first ordered, which is 1992, all this does not seem that old.

The modified radars the PLAAF uses now has a modular subsystem that is powered by an 486 class processor(s). This subsystem handles the R-77.

[challenge]

The radar itself was developed around the eighties, and reflects the technology level then (e.g. Intel 8080/8088 processor). The development level of the Russian processors for the N001E radar is about that. At the time when the Su-27SK was first ordered, which is 1992, all this does not seem that old.

The modified radars the PLAAF uses now has a modular subsystem that is powered by an 486 class processor(s). This subsystem handles the R-77.

the original computer for SU-27SK able to performed a very low 170,000 ccomputation/sec.,by contrast SU-30mkk main computer,according to Chinese aviation mag. able run 1 billion /sec.

[crobato]

Let me get this clear. There are no main computers in the system. Radar systems are distributed processing systems, which means they're built of not one single computer, but many small ones talking to each other through a bus. Each small computer handles a subsytem of their own.

The system on the Su-30MKK, called the N001VEP, is actually two new subsystems added on top of the old N001E used on the Su-27SK. Thus, its really hacks upon an old system. The first new subsystem adds R-77 capability, though this system may also include Kh-31A capability as well (both are radar guided missiles, remember that antiship missiles are also radar guided. The second subsystem adds precision guided munitions capability. Its basically built around a fiberoptic optical-TV channel and it is used for the TV and laser guided weapons on the Su-30MKK. This is the part of the Su-30MKK subsystem that is most advanced.

What the J-11s have is the first subsystem (SUV-V). The Su-27SKM upgrade package includes both subsystems, but China did not opt for the second system that supports TV and laser PGMs. Otherwise, the J-11s would have full SKM capability instead of being half way. By having so, the planes would be single seat equivalents of the Su-30MKK.

To make it clear this is how it works again.

N001E (basic radar)

N001E + R-77 subsystem. Used in J-11s and last batch Su-27UBK.

N001E + R-77 subsystem + PGM subsystem -> Su-30MKK

Now the R-77 subsystem is modified further adding sea search and targeting modes for Kh-31A support. ---> Su-30MK2.

The whole point is that the old systems and computers are still there, but they have been added with new systems and computers that work along side.

[Dr.NO]

Its from Pinkov take it with a grain of salt.

http://www.spacewar.com/reports/Analysis_C...n_tech_999.html (http://www.spacewar.com/reports/Analysis_China_eyes_new_Russian_tech_999.html)

Analysis: China eyes new Russian tech

by Andrei Chang
Hong Kong (UPI) Nov 23, 2007
A Chinese military source based in Beijing has said the People's Liberation Army Air Force is negotiating with the Russian Sukhoi Aircraft Company on three new projects.
Military observers based in Moscow and Beijing say they believe the recent nadir of military cooperation between China and Russia is only temporary. China will have to rely on Russia to develop its military technologies, as Beijing has no other alternative.

The first new project involves Su-33 shipborne fighters. Experts from the Russian aviation industry are convinced that China is about to start the construction of an aircraft carrier.

"Up to the present, on the issue of the Su-33, China and Sukhoi have had three rounds of negotiations and have reached some agreement," said the source.

Nonetheless, he did not disclose what specific progress has been made in the negotiations, merely confirming that additional rounds of talks will be held. A high-level source from Sukhoi confirmed his company is most interested in discovering whether the Chinese want to purchase whole Su-33 fighters or only require Su-33 parts, and whether they will request the transfer of production technology or design blueprints.

Other sources from the Chinese military industry said that several plans were involved in the negotiations on the Su-33. One of them is that China will buy a small number of Su-33, say 10 to 24, and later request that production technologies be transferred. However, the Chinese strategy is to use some of the Su-33 technology to develop their own shipborne fighter based on the J-11B assembled domestically.

The second project under negotiation involves the newest Su-35 fighter. At the MAKS 2007 International Aviation and Space Salon held at the Zhukovsky Air Base near Moscow in August, Chinese delegates took photos and videos of the Su-35 virtually every day.

"Several Chinese delegations have visited Sukhoi and raised technical questions," the Sukhoi company representative said. He said the two sides have reached a consensus and are now working on export plans.

"At least in the foreseeable future, China's indigenous aviation technologies will not be able to produce combat aircraft similar to the Su-35," he said. "Our attitude on this issue is the same as the case of the Su-33; that is, we are only interested in exporting whole Su-35s. This is not what the Chinese delegates hoped for. They hoped to import only certain subsystems, for instance the radar systems or the engines."

The third project concerns the PLA Navy's plan to import more Su-30MK2 fighters, or upgraded variants of the aircraft. No progress has been made on this as yet, however. A plan for China to import Su-30MK3 fighters, which was negotiated earlier, has not been carried out so far.

The possibility that the navy will continue importing Su-30MK2s or Su-30MK3s appears slim, mainly because it has already started to receive China-made JH-7A fighters. Meanwhile, the upgrade of the J-11B fighter aircraft has been very comprehensive. The fighter is now capable of launching precision attacks on battleships, and can basically meet the combat requirements of the navy fleet. China may not resume the import of Su-30MK2s unless the cost of the J-11B remains too high or comes close to the cost of the Su-30MK2.

Is there any possibility that the PLA Air Force may upgrade its existing Su-30MK2s and J-11s, or the Indian Air Force's Su-30MKIs, to a combat platform close to the Su-35 standard?

Yury Bely, a general designer at Russia's NIIP Radar Design Bureau, agreed to discuss the question. "It is impossible to import the Su-35's radar system only," he said. Bely stressed that it would be more feasible to import brand new Su-35s than to try upgrading the Su-30MK2.

The Su-35 is equipped with the H035 passive phased array radar system, which has extremely powerful detection capability, Bely pointed out. The average output power of this radar is 5 kW, with peak output at 20 kW; thus the output power of the Su-30MKI and Su-30MK2 would be insufficient. When the H035 radar was tested on Su-30MK No. 503, the detection range was as far as 290 kilometers with 1 kW power output, he said.

(Andrei Chang is editor-in-chief of Kanwa Defense Review Monthly, registered in Toronto Canada.)

[Deino]

Can anyone help with an identification ???

1. picture I would say a J-11A or even B with a strange missile under the left wing.

2. picture looks more like a Su-30MKK with its taller fins but maybe the same missile ???

--> So first of all do You think both ac are the same and if YES, what the heck ... ???? ... maybe the J-11BS ??

Cheers, Deino

[crobato]

Its too blurry or lack high resolution detail to make out the missile, or the J-11BS vs. Su-30MKK characteristics.

[Deino]

Its too blurry or lack high resolution detail to make out the missile, or the J-11BS vs. Su-30MKK characteristics.

Hmmm ... I'm not sure and therefore tried to enlarge and sharpen them.
Iin the firts picture we can clearly see the grey corners of the tail and strange nose-marking suggesting a Chinese Flanker - also it looks yellow but that could be due to lighting conditions and also if the radome is black ???. Quite strange it seems as the wing has one additional pylon.
For the second picture I would say it has the larger squared fins (IMO) ... so are both aircraft the same or not ???

Cheers, Deino :confused:

[crobato]

Corner patches on the elevators are also found in the MKK, but not in the Su-27SK, so having the dark corner patches can either mean MKK or J-11. If the wing has one additional pylon it can be an MKK but who knows if the J-11BS has been modified as well. Yellow color would lean it to a brand new J-11 and so will a black nose. The MKK's rear fins are not larger than that of the UBK, just squared off. The two seater tail fins are larger than the single seater's in general so an indication of size on that part only means two seater but which two seater?

[Deino]

Corner patches on the elevators are also found in the MKK, but not in the Su-27SK, so having the dark corner patches can either mean MKK or J-11. If the wing has one additional pylon it can be an MKK but who knows if the J-11BS has been modified as well. Yellow color would lean it to a brand new J-11 and so will a black nose. The MKK's rear fins are not larger than that of the UBK, just squared off. The two seater tail fins are larger than the single seater's in general so an indication of size on that part only means two seater but which two seater ?

That's the most interesting thing ... besides that strange missile (maybe a Kh-59 ???) :confused:

Thanks for that ... never noticed that the MKK also had these darker squares; I thought it's a typical feature onyl found on China-produced J-11.

Regarding the height of both two-seater I'm not sure - have to check some drawings - ... I agree that the UB's tail is also higher than a SK's tail, but as the MKK is actually a hybrid-type with many features from the Su-27M it has - in contrast to the Indian MKI - the taller + squared M's tail.


Deino

[crobato]

The squared tail of the MKK seems to give the impression that its taller than the tail of the UBK or the MKI, but in reality, looking at the side drawings, they're the same height as the clipped fins of the other two seaters. The MKI also has the corner patches, but they seem to have a lighter color than that of the J-11s. I suspect these patches are a kind of aerial signal receiver.

[Deino]

The squared tail of the MKK seems to give the impression that its taller than the tail of the UBK or the MKI, but in reality, looking at the side drawings, they're the same height as the clipped fins of the other two seaters. The MKI also has the corner patches, but they seem to have a lighter color than that of the J-11s. I suspect these patches are a kind of aerial signal receiver.

Just had some time to do a comparison ... You are right with the height, but otherwise I didn't know that there are so many changes !

Deino

[challenge]

what is maximum range of type-1473 radar?
according to back issue of air international,max. tange of SU-27SK's N-1001 radar is 165km. tracking range 80km.
for the F-15A 185km.
and why is when western source usually provide both search and tracking range for the soviet airborne radar, while never mention tracking range for US make radar.?
Is tracking range refering to illumination range?

[crobato]

Allegedly the range is about 160km (some say up to 180km). I don't know if this is tracking range or not, I think this is search distance, while tracking range may depend on the RCS of the target. My presumption is that the tracking range is between 80 to 120km depending on the RCS of popular fighters.

[RedMercury]

I find all these range quotes to be rather difficult to compare, considering they depend on at least two and probably more variables: what the target RCS is and what the miss rate per unit time is. For tracking, this gets even more blurred. What exactly do you mean by tracking? As in, to what accuracy and confidence?

[tphuang]

what is maximum range of type-1473 radar?
according to back issue of air international,max. tange of SU-27SK's N-1001 radar is 165km. tracking range 80km.
for the F-15A 185km.
and why is when western source usually provide both search and tracking range for the soviet airborne radar, while never mention tracking range for US make radar.?
Is tracking range refering to illumination range?

150 km vs 3 sqm targets according to the J-10 avionics developer guy. For su-27sk, search range is generally for searching much larger targets I think. We do have detection range for modern western fighters. For example, APG-77 is said to be able to track 1 m^2 targets at 170 to 190 km.

[PrOeLiTeZ]

This was what I always presume it to be the tracking range is roughly half of the max range of radar, for a RCS of <5m^2 such as a J-7.

[tphuang]

Also, some fresh news from HKB, aerospace daily. This is news from SAC, looks like it's about the naval J-11 or J-11BS


日前，备受人们关注的新研项目飞鸡顺利通过公司评审组评审，交付试飞站，这标志着这个型号飞鸡研制生产取得 了重大进展。
自8月下旬新型号飞鸡正式投入总装生产以来，在技术协调问题较多，工作条件简陋，质量要求高的情况下，总装 厂领导班子打破常规，攻坚克难，着力提高生产能力，在装配技术，实物质量上下功夫，不仅使每日工作内容逐步 增加，而且产品质量也得到了保证。在新研飞鸡总装中，厂里成立现场工作团队，由工艺，调度，工段，维护，检 验等部门抽调专人负责研制生产。组织员工两班倒，计划按小时排，能提前1分钟决不耽误60秒。 。。

It talks about a new plane finishing the review and is delivered to the flight test station. This is a huge progress for this type of plane. The plane was first assembled in the end of August. They had to do a lot of tests to prepare it for flight test.

[tphuang]

from avic1 on J-11B, well sort of, news from SAC
http://www.avic1.com.cn/chinese/xwzx/detail/20080104_1.htm
Basically, the importance of this article is that it mentions J-11B finally successfully completed the certification review in 2007 and the engine it uses (WS-10A) passed design certification in Dec 2005. It mentions a bunch of other stuff, but in general, just another confirmation that J-11B is now in service.

团结协作 创新篇章

http://www.avic1.com.cn　　2008/01/04


　　55载雪雨风霜，凝结成不朽的航空精神。一航沈阳所和一航动力所的广大干部职工，始终把国家利益、事业 使命放在第一位，坚定同心协力的一盘棋思想，使重点工程实现了飞机和发动机研制的同步突破，取得了引进、消 化、吸收、再创新的同步发展，树立了飞机和发动机协同发展的典范。

当配装国产发动机的重点型号飞机成功首飞，标志着中国一航“航空报国、自主创新”又一丰硕成果诞生。该型发 动机从其立项研制到定型，每个阶段无不贯穿着飞发一体化、飞发协同的设计思想，是一航动力所、一航沈阳所等 厂所共同研发、攻关的结果。

该发动机为全新设计的核心机，共采用百余种新材料和新工艺，新研的几十项配套成品需要大量零部件试验、累计 试车、高空模拟试验和试飞验证考核，而且严重缺少飞机设计资料，其研制难度之高、技术风险之大前所未有，道 道难关摆在总师系统面前。面对困难与挑战，飞机、发动机型号总师单位——一航沈阳所与一航动力所没有退缩， 勇往直前。

2005 年12月，该型发动机通过了设计定型审查。2007年，配装该发动机的重点型号飞机顺利完成定型审查。一航 沈阳所与一航动力所携手并肩、共谱蓝天理想，解决了一个个重大技术难题，攻克了一道道技术难关。研发过程中 ，飞机型号总设计师组织精兵强将进行专题论证，对技术风险进行预测，并制定有效规避风险的工程研制方案。两 所组成了联合小组深入部队考察、调研。双方联合提出建议开展“科研试飞、定型试飞”，逐步推进，最终达到协 同发展。

飞机总设计师系统和发动机总设计师系统虽然隶属于不同的科研单位，但在中国一航统一领导下，始终能够以大集 团战略为先，以行业大局为重，“无边界管理、无缝隙链接，通力合作”，把目光锁定在提高飞机的整体作战效能 上，锁定在飞机和发动机的协同发展上。从化解风险的顶层决策、可行性论证、飞发匹配方案设计、 到 “瓶颈”技术问题处理，总师系统充分地沟通，有效地指挥，积极地协调。

一航沈阳所和一航动力所从创新组织管理模式入手，针对多型号、多任务下的项目协调、人力、物力、财力资源配 备和供给等项目之间平衡的矛盾，积极推进项目管理，实行组织职能管理和项目管理相结合的矩阵式管理运行模式 ，同时大力推进知识管理。通过实行项目管理和知识管理，实现了资源共享，提高了工作效率，员工的综合能力得 到锻炼，有效地促进了型号任务的完成。一航沈阳所初步构建了基于仿真的数字化设计体系，探索出成熟的基于数 字化的飞机设计流程。一航动力所也初步构建了发动机设计体系。这两个体系实现了设计理念、设计思想的一致性 、同步性，符合飞机设计和发动机设计协同发展的内在要求，相辅相成，相得益彰，形成合力，确保了型号研制进 度和研制质量。

技术创新作为飞机设计和发动机设计的主旋律，体现在专业设计的每一个方面。重点型号飞机在国内率先建立了第 三代战斗机的材料体系, 新研综合航电武器系统极大提高了超视距空战能力，实现了机体、动力和武器的综合集成设计等14项功能，填补 了国内空白。发动机的设计采用了大量的先进部件技术，其中多项填补国内空白，上百项新工艺、新材料的应用， 使发动机材料技术和制作技术实现了一系列重大突破。技术创新的同步效应显著，使飞机和发动机研制水平达到前 所未有的新高度，有力地推动了飞机整体研制水平提升。

一航沈阳所和一航动力所的专业技术人员，凝聚在航空报国的旗帜下，大力弘扬激情进取、志在超越的航空人精神 ，以高度的责任感和强烈的使命感，精诚团结，和谐合作，在较短时间内完成了方案论证、成品技术协调、飞发联 合试验、现场技术支持任务。为了进一步提高飞机整体平台的性能水平，实现发动机和飞机先进技术的完美结合， 全体参研人员不辞辛苦，对设计方案进行了适应性修改。面对设计研制中的技术难点和系统故障，专业技术人员盯 现场，盯数据，盯进度。他们强强联手，集智攻关，克难攻坚，为保进度、保节点、保质量付出了艰 辛的努力。

面对新的一年，一航沈阳所坚持激情进取、志在超越的创新发展之路，用创新打造中国战斗机新品牌，谱写中国航 空人更加辉煌的交响乐章。

[sumdud]

All right, guys, very helpful comments.
But this thread has become very long and hard to follow, so here comes the continuation:

China Flanker Thread II (http://www.sinodefenceforum.com/military-aviation-air-force/china-flanker-thread-ii-3720.html)

Great disscussion gents! But this thread is closed!