The 11th China International Aviation and Aerospace Exhibition came to an end in Zhuhai. Compared with the past, the scale of this air show is unprecedented. According to incomplete statistics, the air show attracted more than 700 exhibitors from 42 countries and regions, and exhibited more than 900 active weapons and equipment of more than 60 models including aircraft, radar and missiles. In terms of dynamic demonstrations, the Chinese Air Force Bayi Air Show Team, as well as the British "Red Arrow", Russia's "Warrior" and "Swift" team performed a superb formation transformation; static display, China's self-developed The 200-ton large-scale multi-purpose transport aircraft has become the focus, and many times the H--6K, Air Police-500, æ¼-10B, Yun-9, and Zhi-10K of the East China Sea, the South China Sea and the Western Pacific have also appeared.
This air show demonstrated the strength of China's modern air force with an open attitude and the spirit of a big country, demonstrating China's military deterrence in all aspects. Among them, China's self-developed fourth-generation fighter æ¼-20 is undoubtedly one of the most dazzling stars in this air show and even this year's military news. After the success of the first flight, the development trend of the æ¼-20 continued to attract strong attention from domestic and foreign media.
Although the æ¼-20 first flew in January 2011, in the past six years, as long as there are relevant reports, it must be the headline of the major military media on the Internet.
In addition to stealth performance, the new generation of avionics system is the core standard of the æ¼-20 as a new generation of fighters. For example, only a few countries have active phased array radar systems, electronic warfare systems, and optoelectronic systems. -22 diamond head, F-35 photoelectric distributed aperture system, Russia T-50 full-motion vertical tail and other fighters in one design. In February 2016, the US military aviation and aerospace electronics website selected the 2015-2016 World Active Fighter Integrated Chart, ranking second in the æ¼-20. Before the fate of the T-50 in Russia, the J-20 will become the only aircraft in the world with the strength to compete with the F-22 in the airpower competition. It can be said that for a long time, invisible The aircraft confrontation will only belong to the two countries of China and the United States.
Secondly, the birth of the J-20 broke the traditional combat mode and declared to enter the "hidden era." Stealth aircraft is a kind of weapon that changes the rules of engagement. Unlike the third-generation fighters such as Su-27 and F-15, the four-generation fighter is not only a platform to break through the air defense system and attack the enemy, but also a future networked air and space combat. An important node. At present, the development and progress of military science and technology is likely to completely change the ideology of modern warfare and the mode of engagement. If this change is inevitable, then the æ¼-20 will allow the Chinese Air Force to lead the way in the future of systematic operations.
Furthermore, the birth of the J-20 has spurred the theory and system of air operations. In the practice and practice of warfare in Western countries, the fourth-generation aircraft can serve as stealth reconnaissance aircraft, and can also play a powerful information system function. As a formation leader on the battlefield, it can become the "brain" of the third-generation aircraft operation, and even lead The drone bee swarms. The Chinese Air Force must also study the new tactical tactics around the æ¼-20, combined with other advanced air combat equipment and technology, explore the method of exerting the overall maximum operational effectiveness in training, and gradually form a theory. This is the most "horror" of the æ¼-20.
Although the æ¼20 fighter has already met the public at the Zhuhai Air Show, there are still many "mysteries" about the æ¼20, especially the engine.
In the program, the telephone is connected to the famous military expert and CCTV special commentator Yin Zhuo. On the phone, Yin Zhuo confirmed that the æ¼-20 is now a domestic engine, and the turbofan-15 is under development. After the service of the turbofan-15, the performance of the æ¼-20 fighter will be more obviously improved. The pictures taken by netizens can clearly show the shape of the domestic engine of the æ¼20.
Turbofan-15, referred to as WS-15, is a high-performance, high-thrust advanced turbofan engine developed and produced by Xi'an Aero Engine Company, developed by Shenyang Engine Research Institute of the People's Republic of China, codenamed “峨嵋â€.
At present, it is known that the turbofan 15 has completed the prototype and is undergoing relevant airborne and long-term operational tests; it is likely to be equipped in the next generation of the main fighter aircraft of the PLA Air Force, the J-20 fighter, or the J-10 fighter. Future development type, such as æ¼10C.
Turbofan 15 is currently known to confirm that the engine development plan began in the 1990s; Western countries believe that the engine may import R-79V-300 related materials used by Yak-141 fighters to Russia, but the situation is not currently available. Trusted by support.
The first successful test of turbofan 15 currently has two kinds of arguments. One is that the Chinese network was sent out in April 2005, and the relevant departments in Western countries were presumed to be 2006; in December 2009, the vortex began to appear in the online forum. The real machine loading test of the fan 15.
In 2011, Dawn Factory realized the early delivery of the engine verification machine and entered the long-term test state after 2012. The actual service schedule will be equipped on the æ¼20 fighter in 2020.
The performance of turbofan 15 is currently dominated by the lack of public data and intelligence. Western countries believe that the test version in 2009 can achieve a post-combustion thrust output of 160 Newtons. In 2012, the test may have reached 180 Newtons. (40,000 lbs.) of output performance, Western observers estimate that the turbofan 15 has a 1:9 capability.
In addition to the version used on the fighter aircraft, there is currently a research and development program called SF-A, which was announced in 2009; SF-A will increase the bypass ratio of the turbofan 15 and cancel the afterburner as the C919 passenger aircraft. 20 power source of the transport aircraft. The SF-A output power is about 13 tons, and the prototype is scheduled to be completed in 2016. In addition, there is a research and development plan codenamed SF-B, but the details of the plan are currently unknown.
In 2000, the Russian salute factory recruited heavily after the Chinese investment. Since then, it has gradually formed a technical route independent of the Russian Saturn factory, which is the original developer of the AL-31F engine, so it has the foundation of AL-31F. The 99M series engine that was developed and is well known to military fans today.
Today, the salute factory has become a reliable channel for China to obtain advanced engines from Russia. In contrast, Russia has placed greater hopes on the Saturn plant, and the Su-35 and T-50 are currently using the 117S engine produced by the plant.
Although the 117S engine developed by Saturn is highly favored by Russia, the Chinese engine manufacturer at Zhuhai said that the reliability of the 117S engine is still problematic. At the Russian Air Show last year, the T-50 fighter aircraft using the engine also had a fire hazard.
As for the salute factory, they are also developing two new engines that are technically close to or even stronger than the 117S engine - the 99M2 and the 99M3. Although the Russian side has hinted that the 99M2 engine with a thrust of 14 tons has been improved in this respect and may have been used on a Chinese fighter, these engines also meet the Chinese requirements for reliability and longevity. The problem.
According to the information of the AL-31FN modified engine distributed by the Russian side at the air show, the inside also mentioned: "The improved AL-31FN adopts the structure of the 42 series AL-31F." According to the company's own English website, the new engine is code-named "3 Series AL-31FN". From the data provided by the website, the engine performance and basic structure are comparable to 99M2.
Under the premise that the economy is being suppressed by the West and eager to improve relations with China, Russia seems to have laid down its shelves and is ready to open its 117S engine to China. The Russian side has always believed that China will be interested in the 117S engine. The performance of the previous Zhuhai Airshow Su-35 fighter is also showing the 117S engine. It has proved that its life and reliability problems have been improved through continuous flight performance. The Chinese sales of the aircraft project are obvious.
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