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对于不相信11B的RCS为5-3平米的人,请看这个东西。
JANE'S DEFENCE WEEKLY - MAY 09, 2007
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Details emerge of Chinese J-11B heavy air superiority fighter
Johnathon Weng JDW Correspondent
Beijing
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 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.
Although based on the Su-27SK, the latest incarnation has substantial improvements including a reduced radar cross-section (RCS), a strengthened airframe and an improved fire-control radar, as well as a new flight-control system, glass cockpit and engine.
The improvements are planned to take the aircraft to a fourth-generation platform. It is known that the Yanliang Flight Test Center currently has three J-11Bs under testing (No 521, No 523 and No 524), but there may be others.
The most significant change for the aircraft is the reduced RCS; sources claim that this brings the RCS from the 15 m2 of the Su-27 to less than 5 m2 and possibly as low as 3 m2, but it is unlikely that the minimal changes proposed could achieve this.
The change is not to the dynamic shape of the aircraft but involves modification of the air-intake lip with a radar wave shield and installation of radar-absorbing materials on the intake interior. In addition, the RCS will be reduced with Chinese-made signature-reduction paint.
The strengthening of the airframe - a key aspect since the life expectancy of the aircraft has been criticised by the People's Liberation Army Air Force - has been achieved through wind-tunnel tests of the weapons carriage.
Additionally, the empty weight of the aircraft has been reduced by about 700 kg through the use of composite materials.
It is believed a further 10,000 hours have been added to the life of the aircraft compared with the Su-27SK.
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.
The J-11B will incorporate a four-times redundant digital fly-by-wire flight-control system with mechanical backup. Additionally, the aircraft has a fully glass cockpit with two variants: a reflecting head-up display (HUD) with four multifunction displays (MFDs) and a holographic HUD with three MFDs.
It is likely the former cockpit will be used for ground attack and the latter for air combat. The new cockpits integrate fire-control radar, electro-optic countermeasure pods and infrared 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.
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大家还是应该多学外语,懂英文就会知道上面说了"根据北京消息"和"现有的改进很难达到所承诺的RCS缩小", 如果说外文资料说"根据中方消息,中国已经掌握将狗屎变为黄金的实用技术",我们就应该相信这是洋鬼子也信服的说法吗? |
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