Russia and China, said less than 5 F -20 generation machine can be considered the standard 4-generation and a half (Figure)
The article said China could only count four generations of F-20 fighters and a half
LONDON January 25 news: According to the Russian” Independent Military Review “reported on January 21, recent results emerging in China’s military R & D One of the most shocking is the most unexpected 5th generation fighter F -20 successful first flight. Most experts appear online through F -20 pictures and videos of flight research and analysis, F -20 advanced, feature significantly. Color plate from the engine nozzle point of view, China may have created the two different engines with prototype F -20.
recent launch in China is simply the major field of military R & D results Lianzhu shells: January 16, the Nanjing Military Region, the first exercise under the conditions used in electronic jamming satellite-guided artillery shells, and the Americans are only just in Iraq for the first time in 2007 used similar weapons; satellite image data show that China’s Yellow Sea Huludao carrier pilots appeared on the training center, similar to Ukraine “Nitka” Navy pilot ground training center; Naval Intelligence that China ” wind-21D “campaign launched anti-ship ballistic missile has entered the stage, a range of 1700 km; used to monitor the Pacific and to guide the missile’s target group has formed three satellites to complete; but the most shocking results of the successful first flight or F -20 .
media called China’s new fighters are the F-14, F -20, F-X, F-XX, and so forth. In the first batch of pictures posted online, its code base is fixed to “F 20″, China’s official media, “People’s Daily” now also use this name. Patriotic Chinese people still affectionately call it “Black Hawk”, “Black Ribbon”, and “black” in Chinese as well as “mysterious, hidden” meaning.
first developed by China on the news of the 5th generation fighter in 1995, SAC 601 and CAC 611 are responsible for the direction of R & D projects. August 2008 news that the Chinese military and ultimately selected 611 of the program. November 22, 2009 Chinese Air Force commander has said, the 5th generation fighter prototype soon flight test in 2017 can be equipped. Individual sources said, the first aircraft testing machine at the start of construction in May 2010, the original first flight in 2012. But in the end of 2010 appeared online on the ground run test chart -20 F, which the United States Central Intelligence Agency is also an accident. Many leading experts could not believe, too conceited to think that China’s modern aviation technology gap is too large. Some people even claim that photo is fake. But the debate on the authenticity of the occasion, F -20 test sample machine on January 11 at noon at the Chengdu Aircraft Design Institute and 132 plants over the smooth flight of the airport beginning of the video quickly spread. Pilots at 12:50 GMT flying off, flying for 18 minutes, the successful landing. J-10 test flight in the air several aircraft escort, and take flight situation.
It is reported that F -20 is based on planned flight. Chinese officials not only failed to vigorously promote the aviation industry’s new achievements, and even longer remain silent. State news agency Xinhua News Agency reported the first flight test of the news or even -20 F based on the “Chengdu Evening News,” while the latter is carried out according to online news reports.
current national experts to assess China’s fifth-generation fighter project materials only pictures and videos, but this has been a lot. In many ways, the views of national experts who are basically the same, can the formation of F -20 a fairly objective concept. F -20 single body canard aerodynamic configuration, high large delta wing, with the level before the wing. Two full-motion vertical stabilizer and the large angle between the longitudinal axis. The first part of the machine, including the whole canopy, very similar to the U.S. F-22. The tail part is very much like Russia’s MiG 1.44/1.42.
many experts believe, and 5th generation aircraft than the F -20 body “is too long, obesity, tight.” F -20 wingspan estimated at 14 meters, 23-24 meters long, take-off weight of 40 tons, are most likely to be 34-36 tons. U.S. F-22 take-off weight of 38 tons, length 18.9 meters, wingspan 13.56 meters. U.S. F-35A maximum takeoff weight of 31.8 tons, length 15.7 meters, wingspan of 10.7 meters. Russian T-50 prototype maximum takeoff weight of 35.48 tons, 20 meters long and a wingspan of 14 meters. Russian MiG -1.44 maximum takeoff weight of 35 experimental prototype tons, length 21.7 m, a wingspan of 16.3 meters. Clearly, F -20, and the weight can T-50, F-22 compared to the wingspan do the same, close to the length of the MiG 1.44, 15-20% longer than other aircraft. It can be speculated that, with the different F-35A, F -20 can be used for long-range flight.
engine manufacturing is recognized as China’s aviation industry’s biggest problems. Engine difficult to imitate, must have a series of key technologies, to ensure its longer life and higher reliability Caixing. Therefore, experts were particularly concerned about the power the F -20. Chinese President Hu Jintao arrived on January 6 Institute of Air Force equipment, to be responsible for the development of F -20 WS-10G FADEC engine engineer Gan Xiaohua issued a first certificate and medal. Xinhua News Agency pointed out in the report, China’s advanced assembly is made of advanced aircraft engines. But experts disagree, many people speculated that the engine is using the F -20 Russian AL-41F1S, Su-35S is equipped with the 117S products, but the nozzle plates in different colors. Russian-made engine nozzle piece is silver, lighter, Chinese-made engine nozzle plate is black. -20 F can be seen on video first flight, the engine nozzle plate is black, which means it is equipped with Chinese-made WS-10G engine. But the end of December last year, circulated on the Internet machine number “2001″ F -20 sample machine nozzle plate on the engine is light colored. This means that now there are at least two ready-made F -20 prototype, using two different engines, including one using a Russian-made engine.
Chinese-made Improved WS-10G “Taihang” engine is the first stage of product positioning engine, the thrust of 14.5 tons (or 15 tons). In the second stage, the production model will be equipped with thrust F -20 16.3 tons of WS-15 engine, its thrust should also be increased after the 18.3 tons. This engine has been developed for several years, plans to put into operation in 2020. Afterburning thrust of 13.2 tons as the WS-10 engine, some experts believe that it is only test products, reliability is not prominent, improved WS-10G the same. Development of the Chinese delegation and the leading Russian engine, Moscow “Salute” machinery manufacturing enterprises on procurement AL-31FN series 3, that is known for longer life “39 products” negotiations were not easy. The Chinese side also proposed in AL-31FM2 engine testing and debugging. According to the experts speculated that the engine thrust, the Chinese F -20 reference the original design are two maximum afterburner thrust of 14 tons of engine. The experts agreed that the machine number “2001″ F -20 pictures, you can clearly see the maximum thrust of 13.5 tons of features AL-31FN engine, but there are some differences, especially the larger inlet size, China is obviously no but the wait will be able to develop more thrust out of the engine. Therefore, China will purchase $ 100 million per year of AL-31F engine parts, including blades, turbine plates, catheters, etc., some of which never had parts failures, the Chinese will still buy, and the total number of spare parts procurement for many years ahead. Understandably, China-made aircraft engine design will take full advantage of the import Russian-made engine. But the progress is not smooth, so the engine development program in China the second phase of the period up to 10 years, until 2020. Experts also speculate that the engine inlet, F -20 will mainly subsonic cruise flight, yet there is no guarantee supersonic cruise capability of afterburning engines.
21 century aircraft manufacturing in the use of synthetic materials, it is difficult to say how much the use of F -20 synthetic materials. But the video is very clear from the flight of the oscillation phenomenon, F -20 mainly made of synthetic materials, machines are also used after the first part of the air show debut over in a variety of composite materials. In this regard, China does not seem to lag behind Europe and North America than in, perhaps even more than Russia. Another surprise is -20 F and F-22 using the same overall style canopy, the design and sealing are also similar, but the whole cast is obviously a hatch on the production equipment made. Russia does not yet have mastered this technology. But it is hard to say, the whole canopy F -20 how strong, can withstand the test of supersonic flight.
F -20 to aerodynamics that Chinese designers attempt to protect the ability to fly supersonic aircraft flying at the same time to improve performance, increase mobility, while reducing fuel consumption, both as to ensure its long-range fighter-interceptor machine, alone or with the fleet to intercept bombers, tankers, AWACS, and can be used as stealth bombers, and even fly to distant waters against enemy aircraft carrier battle groups. Designers obviously wanted to -20 F with a maximum capacity of the weapons bay, which might explain the reasons for their body longer. If only a weapon compartment, then F -20 may be mounted large-caliber long-range anti-ship missiles or air-guided bombs. In addition, there may be two sides of the fuselage bulkhead, used to mount air to air missiles. As for the avionics, I can only say, it is highly likely to follow the configuration of the F-10B, especially 1475/KLJ5 type active phased array radar antenna, in addition to looking around the glass cockpit and wide-angle holographic information display system. In addition, the Chinese designers with a variety of stealth technology F -20 stealth capabilities with the goal might have been achieved. However, in the arms with respect, no direct or indirect messages to prove that China already has a new generation of high-precision air weapons.
In short, most experts believe that comprehensive, although the performance of advanced F -20, but there are obvious shortcomings, especially the engine does not meet the existing fifth-generation product requirements, airborne equipment performance is not outstanding, a whole does not yet have fully achieved the level of 5th generation fighter, can only be regarded as the fourth generation of + the current time being used for technology demonstration and flight test bed. However, there is the fact that -20 F itself sufficient to prove that China’s aviation industry is developing rapidly, has mastered a series of modern technology, is trying to shift from product imitation own design, can be said that China’s aviation industry has formed his own design school. Do not forget that a few years ago many people still doubt that the Chinese access to space, now China has a plan to build a base on the moon. Therefore, if the 2020 F -20 completely made to start using the new engine, fully meet the standard fifth-generation fighter, and put into mass production, please do not make a fuss. (Compiled: Shu-shan)