Tuesday 12 January 2021

The 11th project is of great significance. The Su-27SK has retreated to the second line, and the J-11A still has advanced points

chinamil.com.cn - Photo by Wang Jingwen


十一号工程意义重大,苏-27SK已退居二线,歼-11A依然有先进之处_重型

2021-01-11 05:43


The 11th project may be an unfamiliar term for many military fans. But for military fans, many people should be familiar with the No. 10 project. The No. 10 project is the J-10 fighter project in the aviation industry. For many periods of time, the official report of the J-10 fighter does not directly refer to the model, but to National heavy model engineering. Similarly, the No. 11 project is the J-11 fighter jet of my country's aviation industry. Today I will talk about the J-11 fighter and Su-27SK fighter.


The domestic Su-27 fighters are mainly divided into two models, one is the Su-27SK single-seater fighter and the other is the Su-27UBK two-seater fighter. The Chinese Air Force purchased Su-27 fighters in three batches, of which 24 were introduced in the first batch in 1992, including 20 Su-27SK and 4 Su-27UBK; because some Su-27 fighters were used by the Russian Air Force at that time So the Russian side presented two Su-27UBK fighters as compensation. In 1995, the Chinese government decided to build a production line of Su-27 fighters in the country. As a requirement of the contract, my country once again introduced a second batch of 24 Su-27 fighters from Russia, mainly including 16 Su-27SK and 8 Su-27UBK. Fighter.


In 1999, my country decided to purchase a third batch of 28 Su-27 fighters, all of which were Su-27UBK fighters, mainly for the training of fourth-generation heavy fighter pilots. So far, the Chinese Air Force has introduced 78 original Su-27 fighters, including 36 single-seater Su-27SK fighters and 42 two-seater Su-27UBK fighters. The introduction of three batches of Su-27 fighters also indicates that the Chinese Air Force will become the largest user of the Su-27 series fighters in the world except Russia. After entering the 21st century, the People's Air Force introduced 76 Su-30MKK multi-role fighters, and the People's Navy introduced 24 Su-30MK2 multi-role fighters. In recent years, the People’s Air Force has introduced another 24 Su-35SK fighter jets. In summary, our army has introduced a total of 202 original Su-27, Su-30 and Su-35 fighters.


After talking about the original goods, let’s talk about the domestically produced J-11 series. According to public information, the first Su-27 fighter jet assembled in China made its first flight successfully in 1998. Some aviation subsystems, such as radar, avionics, and engines are provided by other Russian manufacturers. For Shen Fei, although the production line was introduced and the relevant drawings were available, the assembly was not smooth.

It is reported that the first two had to be disassembled and reassembled due to quality problems. Shen Fei used to mainly produce J-8 fighters. The quality of the first batch of J-11 fighters was not perfect, and many people expected it. After years of hard work, finally, after 2003, the domestically assembled Su-27 fighters have matured day by day, and the ratio of domestic components and parts used in their fighters has also increased. With the continued advancement of localization, the aviation industry Shenfei stopped importing related parts and kits after receiving 105 sets of Su-27SK fighter components and kits. It was once thought by the outside world that Shen Fei did not speak credit.


In fact, the real reason is this. There are many reasons for stopping receiving the parts and kits of the Russian Su-27SK fighter. First, our military discovered that the technical status of the Su-27SK fighter jet at that time did not have obvious advantages compared with the fourth-generation aircraft in neighboring countries and regions. The biggest disadvantage was the ability to launch active radar-guided air-to-air missiles; The improvement of the conversion rate is not a big problem except that the engine cannot be made domestically. Especially through the development of the No. 10 project, the domestically made avionics system and radar technology have advanced by leaps and bounds. Shen Fei can develop a better dual-engine heavy fighter. This is the later J-11B fighter. As compensation to Russia, our army later imported 100 two-type Su-30 fighters from Russia.


About 2006, the aviation industry Shenfei has completed the assembly of 105 Su-27SK fighters. The early production of this batch of fighters can be called the J-11, the later production can be called the J-11A, of course, it can also be collectively called the J-11 fighter. Regarding the previously introduced Su-27SK fighter jets, due to the limited lifespan of the airframe and excessive flight training intensity, many have been retired or retired to the second line. From official pictures published in recent years, it can be seen that the airborne weapons used by the People’s Air Force J-11A fighter are mainly three traditional models. The three major models are R-73 short-range air-to-air missiles, R-27T infrared-guided medium-range air-to-air missiles and R-27R semi-active radar-guided medium-range air-to-air missiles.


However, through official media reports in recent years, we can see that the domestically-made J-11A fighter jets can already use R-77 active radar guided air-to-air missiles. According to media reports, in order to obtain ground attack capability, the Su-27SK fighter jet introduced by the People’s Air Force has more advanced body strength and landing gear strength than the Su-27S fighter jet used by the Russian Air Force. But because it is an export model, the N001E radar used in the first two batches of original Su-27 fighters is old and cannot be upgraded to a higher version, so the first two batches of Su-27 fighters do not have the ability to launch R-77 medium-range air-to-air missiles.

The third batch of Su-27UBK fighters and the later domestically assembled Su-27SK fighters were equipped with N001P airborne radars. Initially they did not have the ability to launch R-77 air-to-air missiles. After our army was equipped with Su-30 series fighters, After many negotiations between the two parties, the N001P airborne radar was finally upgraded. After the upgrade, the third batch of Su-27UBK fighters and 105 Su-27SK fighters assembled by Shen Fei also have the ability to launch R-77 air-to-air missiles.


It is equivalent to saying that our army has the ability to launch R-77 medium-range air-to-air missiles, an increase of 133 fighters, to match the subsequent 100 Su-30 multi-role fighters. These more than 230 twin-engine heavy fighters constitute the strongest air wall above our country. Later, with the mass service of J-11B and J-10 fighters, our army’s air superiority capability reached a new level.


The picture is a shot of the daily training of a certain air force. You can see the R-73, R-27 and R-77 three missiles in the picture. The background is our army's J-11A fighter, which is the assembly of 105 Su-27SK fighters that year Part of it. It can be said that with the R-77 advanced medium-range air-to-air missile, these 105 J-11A fighters still have advanced features. Of course, the current number of these fighters in active service may be less than 105.


After more than 10 years of upgrading, the Japan Air Self-Defense Force has more than 80 F-15J fighters equipped with AAM-4 advanced medium-range air-to-air missiles. In comparison, the Shenfei J-11A fighter jets of the aviation industry have obvious quantitative advantages. There is no statistics on the imported 100 Su-30, 24 Su-35SK multi-role fighters, hundreds of J-11B, J- 11BS, J-11BH and J-11BSH, as well as hundreds of J-16 and dozens of J-16 fighters. Think about the more than 100 J-11A air superiority fighters in our army that can launch R-77 medium-range air-to-air missiles. Is this considered the advanced feature of the J-11A fighter? From here, we can also see that the significance of the 11th project of my country's aviation industry at that time was very significant. The domestically produced Su-27 fighter jets greatly enhanced my country's military and national defense capabilities.

The pictures in this article are transferred from the Internet, if there is any infringement, please contact to delete. Where there is a watermark in the picture is the original source of the picture. Since domestic Soviet fighters and J-11A fighters are rarely publicly displayed, the author can hardly find original pictures. Only use official pictures first.

The data in this article is for reference only


Mitsubishi F-15J: Details
Su-35S Flanker-E: Details

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