In mid-2002, SAC unveiled its intention to build an upgraded multirole version of the J-11 by revealing a mock-up aircraft carrying various types of air-to-air and air-to-surface missiles. Russian sources also confirmed that SAC was pursuing a multirole variant of the J-11 designated J-11B with much greater Chinese-made content. At least three examples (#523, #524, and #525) of the J-11B have been delivered to the China Flight Test Establishment (CFTE) for flight test and evaluation since 2006. The aircraft was based on the Su-27SK/J-11 airframe, but with the following modifications:
1.An indigenous multifunctional pulse-Doppler fire-control radar reportedly capable of tracking 6~8 targets and engaging 4 of them simultaneously;
2.An indigenous digital flight-control system;
3.A Chinese copy of the Russian OEPS-27 electro-optic search and tracking system;
4.A strapdown INS/GPS navigation system;
5.A ‘glass’ cockpit featuring four colour multifunctional displays (MFD) and a wide-angle holographic head-up display (HUD);
6.The aircraft could carry the Chinese-made PL-8 IR-homing SRAAM and PL-12 active radar-homing MRAAM for air-to-air combat. While the PLAAF currently has the capability for two-target engagement using the Su-27/-30 and R-77 (AA-12 Adder) combination, successful integration of the PL-12 on the J-11B would likely provide a genuine multi-target engagement capability. The J-11B is also expected to have enhanced air-to-surface attack capabilities with the indigenous precision strike ammunitions such as LT-2 laser-guided bomb, the LS-6 precision-guided glide bomb, the YJ-91 (Kh-31P) anti-radiation missile, and the KD-88 air-to-surface missile.
During the 6th Zhuhai Air Show held between 31 October and 5 November 2006, China revealed first official details about the indigenously developed FWS-10A ‘TaiHang’ turbofan engine. The engine had already been successfully tested on a modified Su-27K fighter and possibly on some J-11 airframes too. The engine is understood to be similar to the Russian Lyulka-Saturn AL-31F turbofan engine in both technology and performance. However, it is unclear whether the FWS-10A has already been fitted on the 'indigenised' variant of the J-11.
J-11BS
There has been speculation that Shenyang is currently developing a two-seater version of the J-11B, possibly designated J-11BS. The aircraft was said to be similar to the Su-27UBK fighter-trainer, but fitted with Chinese-made powerplant, avionics, and weapon suite.
Based upon the older Russian SU-27 fighter, the Chinese have employed stealth capabilities to give them an edge in Asia with the J-11. While it isn’t as stealthy as its American counterpart, it still only allows 3 square meters to be visible by radar, making it virtually invisible from a distance.
Still, the technology and battle capabilities of the jet is comparable to an American F-16, making it vulnerable in combat against more advanced aircraft. China is currently developing a pair of true stealth fighters, the Jian-13 and Jian-14.
“China is interested in reducing its reliance on foreign technology for both cost reasons and a desire to improve its domestic research and design.”
KnAAPO/Shenyang Su-27SKM/J-11 Flanker B
A recent renegotiation of the J-11 build has resulted in a configuration change to the latter 100 licence built J-11s, which will be delivered in the Su-27SKM (also reported as SMK) variant. The principal distinction is that the Su-27SKM incorporates all of the refinements of the multirole Su-30MK variants, and can thus support guided munitions, making it equivalent to proposed but never built single seat multirole derivatives of the F-15E. As such the Su-27SKM can carry the full suite of air – ground munitions now carried by the Su-30MKK series. The radar configuration has not been disclosed but may include the Pero passive phased array. Another possible alternative is a derivative of the developmental Phazotron AESA, reported to have been tested with a 0.7 metre array size on the MiG-29. This analyst interviewed Phazotron's chief designer during the 1990s and was satisfied that they understood the key design issues well.
There have also been persistent reports from Chinese sources claiming an effort is under way to 'indigenize' the J-11 by incorporating Chinese technology, specifically the Woshan-10A (WS-10A) engine replacing the AL-31F, the Shedian-10 radar replacing the N-001, and the PL-12 (SD-10) BVR missile replacing the R-77 and R-27, and a range of indigenous guided munitions replacing the Russian types. Given the time required to integrate, test and clear such a different derivative variant, it is likely that it could only be introduced after the last block of the SKM variant is built, thus suggesting an intent to continue J-11 production past 200 airframes.
Sukhoi
Su-27
ASCC codename: Flanker
Multi-Role Fighter
DESCRIPTION:
Marking a major improvement in the quality of Soviet fighters, the Su-27 is a long-range air superiority fighter comparable to the US F-15 in size and mission. The Su-27 is equipped with an analog fly-by-wire control system, a powerful pulse-Doppler radar, and up to ten air-to-air missiles giving it a potent look-down shoot-down capability. The Flanker also features a rearward-facing radar at the end of a long boom placed between the engines allowing the Su-27 to search for targets behind the aircraft. The Su-27's high thrust-to-weight ratio and refined aerodynamics allow superb flight characteristics at high angles of attack. In addition, the Soviet Navy purchased an improved Su-27K design, later redesignated the Su-33, to operate off its first class of large aircraft carriers. The Su-33 features canards for improved maneuverabilty as well as a strengthened airframe for carrier operations. An interesting feature of the Su-27 is its autopilot which is able to return the aircraft to right-side-up level flight at any altitude when the pilot presses a "panic-button. Improved version of the Su-27SK developed by China that features major upgrades including a new radar and an infrared search and track system while also incorporating Chinese weapons, reports suggest further orders for the Su-27SK (J-11) built in Russia are to be cancelled in favor of constructing the J-11B locally in China
http://observers.france24.com/en/con...s-russia-china
The original Russian-made Su-27 (Sukhoi 27).
China's version, the J-11.
It started some 30 years ago with fake Levi's jeans and Versace bags. Then the market became more sophisticated, with faux iPhones on the racks. Now, the Chinese counterfeit goods trade has gone even further, with the production of identical copies of Russian-designed fighter planes.
In 1996, the Chinese government acquired a license to manufacture 200 Su-27 (Sukhoi 27) fighter jets at the Shenyang aircraft factory in northeast China. The planes were supposed to be used by the Chinese air force under the name J-11. But in 2004, after reeling 95 planes off the assembly line, the Chinese authorities suddenly cancelled the contract, listing various faults with the design of the jet. However, in 2007 China started to manufacture a new plane, of "Chinese design", which they named the J-11B. Not surprisingly, it was almost an identical copy of the Su-27, except for the addition of Chinese-produced engines, radars and dashboards.
The Chinese model is much cheaper than the Russian original, and Russia has been quick to note that China hopes to sell it to countries usually supplied by Moscow.
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China qustionable status among the roster of future SU-35 customers, and its certain presence as an export competitor, both create more difficult dynamics for SU-35 export success.
www.DefenseIndustry Daily.com[/B]
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China has a large inventory of SU-30MKKs, and is also pressing ahead with its J-11, which substitutes Chinese electronics, radars, and engines in an SU-27 family airframe. Russia is very upset by this theft of its intellectual property, which has reportedly hindered sales of its carrier-capable SU-33 variant into the Chinese market. The J-11 is likely to serve as a similar but less capable international export competitor, while serving as a barrier to further Chinese sales on both sides of the table. Prospects may improve if Russia fields the PAK-FA and China has difficulty with its J-XX project, but the J-11 experience can be expected to have lasting effects.
China qustionable status among the roster of future SU-35 customers, and its certain presence as an export competitor, both create more difficult dynamics for SU-35 export success.
www.Defense Industry Daily.com
This dated Dec 7th 2008
Details have emerged of China’s next generation J-11B fighter
Jane’s Defense Weekly
Details have emerged of China’s next generation J-11B heavy air superiority fighter aircraft, a further development of Sukhoi’s Su-27SK (Chinese designation J-11) that ended production in 2004 ahead of its planned run.
Shenyang Aviation Corporation (SAC) assembled 95 J-11 fighters from imported Russian components, although the original project had called for 200 aircraft, and it is likely production was stopped in anticipation of the improved J-11B.
The improvements are planned to make the aircraft to a fourth generation platform; the Yanliang Flight Test Center currently has three J-11B under testing (No 521, No 523 and No 524).
The radar installed on the J-11B is believed to be more powerful than the Type 1473 installed on the J-10; it is estimated to be able to track 20 targets and simultaneously lock onto six targets.
J-11B will incorporate a quadruply-redundant digital fly-by-wire flight control system with mechanical back-up. Additionally, the aircraft has a fully glass cockpit but there are two variants - a reflecting head-up display (HUD) with four multi-function displays (MFDs) and a holographic HUD with three MFDs.
It is likely the former cockpit is for ground attack and the latter for air combat. The new cockpits integrate fire control radar, electro-optic countermeasure pods and infra-red search and track.
The improved radar and cockpit have allowed for the integration of newer weapons such as the CATIC PL-12 active radar-guided air-to-air missile.
The J-11 AL-31F engine will be replaced with the WS10A turbofan, providing longer lifespan and reduced fuel consumption.
Beyond J-12, China has plans for a carrier borne J-13, unlikely to be realised before 2015; the J-14, which is planned as a competitor to Lockheed Martin’s F-22, on the distant horizon at 2018; a two-seat J-11BS (2009); a naval J-11J (2010) and two-seat J-11JS (2011); and an improved J-13G and a navalised J-13J (2017).
More aircraft and unmanned combat aerial vehicles are being considered for even further in the future but new aircraft types will need to rise above the financial, political and industrial challenges that are likely to plague the programmes.
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really, iam asstonished, how we underesimate, the machine!
also, when PLAF playing with experince, its not hard for of them to take some of SU30MKKs, kiling abbilities, its maneuvors,,, & put it on AT J-11bs, after all with some westren avionics inputs, it could be a long time solution to IAFs MKKIs???
with the combination, of FC-20 or J-10s, we will be better off, thn our enemy!