Chinas J-20 Stealth Fighter In Taxi Tests

Titlu: Chinas J-20 Stealth Fighter In Taxi Tests
Sursa: http://www.aviationweek.com/aw/generic/story.jsp?channel=awst&id=news/awst/2011/01/03/AW_01_03_2011_p18-279564.xml&headline=Chinas%20J-20%20Stealth%20Fighter%20In%20Taxi%20Tests&next=10
Autor: Bill Sweetman
Data: 03.01.2011

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Chinas J-20 Stealth Fighter In Taxi Tests



A rapid development program would be a challenge for China’s combat aircraft industry, which is currently busy: The J-10B, FC-17 and Shenyang’s J-11B and carrier-based J-15 are all under development. However, the progress of China’s military aviation technology has been rapid since the first flight of the J-10 in 1996, owing to the nation’s growing economy and the push by the People’s Liberation Army for a modernized military force in all domains. Before the J-10, China’s only indigenous production combat aircraft were the Shenyang J-8 and Xian JH-7, reflecting early-1960s technology from Russia and Europe.

Engine development has lagged airframe development, with reports that the Shenyang WS-10 engine, slated to replace Russian engines in the J-11B, has been slow to reach acceptable reliability and durability levels. That may not be surprising, given that high-performance engine technology is founded on specialized alloys and processes that often have no other uses. (The existence of the J-11B, essentially a “bootleg” version of the Su-27, has been a strain on relationships between the Russian and Chinese industries.)

Progress with avionics may be indicated by the advent of the J-10B, with new features that include a canted radar bulkhead (normally associated with an active, electronically scanned array antenna), an infrared search-and-track system, and housings for new electronic warfare antennas.

One question that may go unanswered for a long time concerns the degree to which cyberespionage has aided the development of the J-20. U.S. defense industry cybersecurity experts have cited 2006—close to the date when the J-20 program would have started—as the point at which they became aware of what was later named the advanced persistent threat (APT), a campaign of cyberintrusion aimed primarily at military and defense industries and characterized by sophisticated infiltration and exfiltration techniques.

Dale Meyerrose, information security vice president for the Harris Corp. and former chief information officer for the director of national intelligence, told an Aviation Week cybersecurity conference in April 2010 that the APT had been little discussed outside the classified realm, up to that point, because “the vast majority of APT attacks are believed to come from a single country.”

Between 2009 and early 2010, Lockheed Martin found that “six to eight companies” among its subcontractors “had been totally compromised—e-mails, their networks, everything,” according to Chief Information Security Officer Anne Mullins.

The way in which the J-20 was unveiled also reflects China’s use and control of information technology to support national interests. The test airfield is located in the city of Chengdu and is not secure, with many public viewing points. Photography is technically forbidden, but reports suggest that patrols have been permitting the use of cell phone cameras. From Dec. 25‑29, these images were placed on Chinese Internet discussion boards, and after an early intervention by censors—which served to draw attention to the activity—they appeared with steadily increasing quality. Substantial international attention was thereby achieved without any official disclosures.

Photo Credit: Via Chinese Internet

Titlu: Chinas J-20 Stealth Fighter In Taxi Tests
Sursa articol: http://defense-technologynews.blogspot.com/2011/01/dtn-news-defense-news-asian-defense.html
Sursa poze: Asian Defence News & Strategy Pages
Autor: This article compiled by Roger Smith from reliable sources Asian Defense News
Data: 03.01.2011

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Chengdu J-20 J-XX Fifth Generation Stealth Fighter Jet Prototype

(NSI News Source Info) TORONTO, Canada - January 6, 2011: In late December, photos of a new Chinese jet fighter, that looked a lot like the American F-35, began appearing on Chinese web sites. Most of these pictures appeared to be taken with cell phone cameras, from a distance. Chinese Internet censors quickly ordered the photosremoved. But it was too late, the pix had gone viral and were all over the place. The long rumored Chinese "J-XX" (or J-20) stealth fighter program was now out in the open.

















Work on this new aircraft began in the late 1990s, and it appears that two prototypes have been built. The pictures were taken at an airfield near the Chengdu Aircraft Company (CAC), which builds the J-10 and JF-17. Located in central China, CAC was known to be working on the J-20. The similarity to the U.S. F-35 makes sense, given Chinese efforts to obtain details (via Internet espionage, and more conventional spying) about the F-35. The recent pictures showed the J-20 undergoing taxiing tests, which usually precedes flight tests by weeks or months.

The F-35A is a 31 ton, single engine fighter that is 15.7 meters (51.4 feet) long and with a 10.7 meter (35 foot) wingspan. The engine generates 12.7 ton (28,000 pounds) of thrust, or 19.5 (43,000) with afterburner. In contrast, the J-20 has two engines and appears to be 24 meters (75 feet) long and with a wingspan of 15 meters (46 feet). The engine for the J-20, the WS-15 is still in development. The prototype had afterburner thrust of 16.5 tons, although this was expected to hit 18.3 tons when development was complete. It is believed that the J-20 prototypes are powered by Russia AL31FU/117S engines, each with 14.5 tons of afterburner thrust. Two of these engines would give the 36-40 ton J-20 more power per ton than the F-35A.

China is also developing other F-35 technologies, like the AESA radar, highly efficient cockpit, stealth and software to tie everything together. Developing, or even copying, this tech is not easy. But the Chinese already know that, having decades of adapting stolen technology to their needs. Thus it appears that China is planning on having the J-20 ready for service by the end of the decade. The key factor is their ability to develop or steal the needed technology by then. The J-20 appears to be less than an F-35 clone, and more of an F-35 type aircraft with pretensions to being an F-22. In any event, the J-20 is an attempt to develop some kind of 5th generation aircraft, complete with stealth.

Speaking of generations. The "first generation" jet fighters were those produced during World War II and through the late 1940s. The best examples of these are the U.S. F-86 and the Russian MiG-15. The second generation got going in the early 1950s, and produced aircraft like the U.S. F-104 and the Russian MiG-21. The third generation followed within a decade, producing the U.S. F-4 and the Russian MiG-23. The fourth generation arrived in the 1970s and 80s with the F-15, F-16, F-18, Russian MiG-29, Su-27 and French Mirage-2000. The fifth generation includes the F-22, F-35, and whatever the Russians and Chinese come up with. The Eurofighter and Rafale are often called Generation 4.5.

Russian fifth generation fighter developments were halted when the Soviet Union disintegrated in 1991. Actually, all development work on new fighters, by everyone, slowed down in the 1990s. But work on the F-22, F-35, Eurofighter and Rafale continued, and those aircraft became, in roughly that order, the most advanced fighter aircraft available today. This fifth generation may come to be called the "last generation," after they are replaced by the second generation of pilotless combat aircraft (counting armed Predators and the like as the first).

WOW! toate armele ascunse...

Titlu : F-20 - Chengdu, China's Fourth Generation Fighter Aircraft Successful Maiden Flight! ! !
Sursa : http://defense-technologynews.blogspot.com/2011/01/dtn-news-special-report-f-20-chengdu.html
Autor : compiled by Roger Smith from reliable sources Airforceworld.com
Data : 31.01.2011

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F-20 - Chengdu, China's Fourth Generation Fighter Aircraft Successful Maiden Flight! ! !

**NOTE - Chinese consider F-20 as a humble fourth generation and not fifth generation fighter aircraft as per captioned by author Airforceworld.com

Source: DTN News - - This article compiled by Roger Smith from reliable sources Airforceworld.com
(NSI News Source Info) TORONTO, Canada - January 31, 2011: Recently, the global media were preoccupied with China's new aeronautical technology, surprising and shocking the world with Chengdu J-XX Fifth Generation Stealth Fighter Jet (known as J-20), the American were inquisitive and Defense Secretary Robert Gates headed to Beijing for talks, voices hope that the U.S. will be able to persuade Chinese military leaders to cut back on their pursuit of advanced weaponry.
Here are some extract information on J-20 J-XX Fifth Generation Stealth Fighter Jet from China Chengdu Aerospace forum.


According to friends witnessed Chengdu, China J-20 stealth fighter was at 12:50 on January 11, 2011 or so off the first flight test, 13:11 successful landing. The entire flight process is accompanied by F-10S accomplished trainer battle, which lasted about 18 minutes, a success.
Successfully completed its first flight in the F--20 after landing, a flight test off the site cheers, crowd outside the airport also suffered a sensational fireworks. Thus, the landmark 18 minutes to complete the Chinese J-20 stealth fighters to the reality from the legend of gorgeous turn.


The meaning of the fourth generation F-20 [Chen Feng]




Although the official also shy, but four generations have been unequivocally demonstrated before the world was. These days, flying into a climbing wall party, the party who wore grass lying southern warm winter sun, burdened with intolerable thirst and excitement to the Ti Si cross-flow fans offer a piece of the national army and a fourth generation The Liang phase. Four generations, of course, is not only an exciting thing, four generations of great significance.

A new China established to help the Soviet Union to establish a modern aviation industry, began to catch up with the world advanced level aviation Journey. However, 50-60s assembled in China from the air is not level, which is determined by the history and reality.Strong -5 is a valuable air trying to separate attempt to -8 F highlights the difficult process of the industrial, scientific basis for the severe lack of restrictions. The development of aviation technology in the independent power and catalyst for international cooperation, China Airlines has been persistent, J -10 through 18 years of polish, and finally wrote to the Chinese aviation Inst. Through this effort, China Aviation has created a lean team, formed a complete system of scientific research and support.

Awareness of the importance of the military system is not unique to China. Japan spared no expense, with the price support from a military system. South Korea in economic development, too, trying to establish the integrity of the military system. Taiwan Xiao Jiang era tried, India, Rajiv Gandhi era in the trial, has been tested up to now, will continue to go on trial. It is said that some people in Taiwan of four generations of such comments: "This is a different approach, such as the money directly on the courage of the old common; lack of money lack of courage but the technology enough to engage in experimental aircraft such as the Japanese mind; lack of money lack of technologies South Korea Dazui guns like bile in the KF-X, and then expect you to join to become real gun gun mouth; money and technology and courage are indispensable as Taiwan ......" This is one fact that should be added lack of technical guts of the Indian money Dazui run AMCA. Japan, Korea, Taiwan and India are the first to have this, and finally have the courage; China is the first courage, and then have this one. This is different! With this difference, the system is not the same meaning, vision, handwriting is different.

However, it is undeniable that the target F -10 to catch up the West started to develop in the 70s, 80, began using third-generation fighters. J -10 come out when it comes to stealth, super-tour, featuring ultra-mobile fourth generation fighter has been put into use in the West, J -10 Although the main fighter aircraft and serving the West can still be compared, but behind the cutting edge of aviation technology in the West, It is also undeniable. China started late, weak base, to catch up is a process, this backwardness is not a condemnation of the Chinese aviation, but sure progress, while understanding gap. The fourth generation gap in China has been greatly on the degree of offset, even though four generations of high technology there are still too many real key details kept secret among the direct comparison difficult. Four generations are the first to face the world and claimed that China can reach the world advanced level of fighters, not words. Indeed, F-22 technology demonstrator YF-22 flight in 1990, but the F-22 fighter remains represent the highest level of the West in the foreseeable future remains the same. Tactical unmanned air fighter is an important future trend, but can not replace manned fighter UAV, which is the essence of human intelligence and artificial intelligence different decision. Moreover, China has also made UAV great progress.

J -10 with 18 years and eventually became immortal. The development of four generations is not only now beginning.F -10 to equipment from the first flight took 8 years, four generations of flight has not yet begun the final equipment, the time is not known. How proud that the Air Force deputy commander of 2017-2019 years, if the 2011 test flight, this time a little faster than the F -10, but taking into account the accumulation of technology increases, the time is still possible. West often YF-22 flight to the F-22 equipped with a 15 years, for example, saying that China needs at least four generations can be equipped by 2025. This comparison is unreasonable.

YF-22 flight in 1990, which is what the Soviet Union, the Cold War era of dividends, the Soviet threat vanished, the life of third-generation fighter "natural extension" for many years, fourth-generation fighter aircraft (now the West has followed Russia, renamed Fifth, China is still called the fourth generation, to avoid confusion, here follow the standard old western) greatly reduces the urgency of the other, the United States in the Cold War relaxed the development of civilian technology to make Europe and Japan in many important economic sectors to be leading after the Cold War, the United States began to economic and technological transformation, so the F-22's R & D slow down, equipment is slowing down. If the U.S. continues the Cold War era of high-speed pace of military development, F-22 could have started much earlier and equipment, as planned in the late 90's equipment is not surprising. China's situation is different. China is not in the arms race, F -10, F -11 to China's air pressure has decreased, but the F-22 deployment in the Pacific and the imminent deployment of F-35, so that China can only do four generations of the early deployment of relief air pressure. J -10's experience in developing further the objective laid the technical foundation, four generations of the Chinese aviation stood the threshold of the world's advanced level of aviation, the fast-growing domestic economy is providing considerable material conditions, China has no reason to slow pace of progress.

Four generations of a heavy fighter, so it weighed four, which is designed for the air offensive. Chinese Air Force made "offensive air" slogan has been almost two decades, J -11 is the first Chinese air force can not only can be discussed, and the Air Force can do the heavy offensive fighter. However, the basic design of the F -11 -27 Su is already 30 years old technology, as long as there are ways that China can not rely on the Air Force F -11 resort to the world for 30 years, this approach is the fourth generation. Four generations will be the Chinese air force dagger, the excellent stealth, super-tour, ultra mobile, long range will be able to effectively compete for air superiority in the front to push in the direction away from the Chinese border, with the fight against early warning aircraft, refueling and other nodes tactics, and can effectively resist the air pressure from the United States.

But green leaves red flowers but also helped four generations of the high cost, use and maintenance complex, it requires relatively low-cost fighter adjuvant. J -10 Although the basic technology is less than four generations, but also behind the upcoming equipment but seriously behind schedule in the F-35, but after partial stealth the F-10B modification around China's future air battle still has enough vitality. J -10 just new equipment soon, has been considerable amount of equipment, have a long life. This determines the level with the fourth generation, and improved to -10 F in a very long time occupied the position of the low-end.

On the other hand, in four or four light tanks if the use of weapons inside the case, the size and weight will not be lighter than the heavy Su -27 fighter of this generation, the cost is considerable.At the same time or in quick succession to start re-development of IV and IV and equipment will exceed the capacity of China. In other words, the Air Force in China in a long time there is no light on in four or four of urgency. Of course, the re-completion of four large-scale equipment, the early withdrawal of equipment close to -10 F, at that time in full swing in the four work easier to bear not only economically, technically re-integration of the experience of four, is also in reasonable time. J -11 also has a long service life, as a heavy fighter, a great two-seater F -11 converted room, you can convert heavy fighter-bombers, both excellent air combat and ground attack capabilities required payload and range This has always been lacking in the Chinese Air Force.

Four generations is a milestone in aviation technology. In the stealth fighter, the fourth generation is the only use of canard, which is from the F -10 flew into the technology era tradition may become the signature style into a fly.Canard and conventional layout of the advantages and disadvantages, there is no absolute good or bad. Canard is the use of design requirements and available technical means considering the results, not that the United States and Russia did not use duck four generations, four generations of Chinese duck should not be used. Four generations showed China's confidence in aviation technology on its own and the birth of an independent technical route, which goes far beyond the specific technologies, the importance of how to say not much. In a broader sense, the fourth generation that the "Made in China" to "Created in China" a road map for transition: solid work, and innovative.Leading the West: First, we should seriously study, two did not go beyond fear. Scientific and technological achievements is dry out, foreigners can dry out, the Chinese can be, the fourth generation is already an example of the. Four generations can inspire the Chinese people to learn advanced technology, bold innovation, the world may not find so much of the vortex lift, differential canard, active electronic scanning radar, then the familiar military technology enthusiasts. In the English world, a decent handful of aviation science magazines, ships, weapons and general military magazine even more rare, and that this contrasts with the situation. Four generations and achievements of China's aviation will further enhance this contrast. Huge fan base is a military technology professionals in the size of the basis for hegemony in the world table tennis in China is not accidental that China's dismal situation of hockey is no accident, this is not a problem of national investment can change. Four generations of Chinese science and technology will not be limited to the physical drive and related technologies, and the spread of psychological effect: "The Chinese people also can occupy the forefront of world science and technology."

Limited to four generations of the meaning of home. Aviation industry as a high investment in the world, has become a "noble" industry. 50 years ago, the United States, the Soviet Union, Britain, France, Germany, Canada, Sweden, the Netherlands, Italy, Poland, the Czech Republic has a different scale of the aviation industry; 30 years ago, Japan, Spain and other developed countries into the air, Brazil, Indonesia Third World countries have joined the ranks of the national airline. Today, only the United States, Russia also has a complete aviation industry, the major European countries must join hands together to maintain full cooperation to the aviation industry, other countries have largely become the United States, Russia, the European aviation industry system in the supporting roles, only China sprung up everywhere.

China Airlines has also been an extension of the Soviet aviation. Air China Air does not work for the Soviet Union, but a long time, China's aviation technology, products no doubt from the Soviet Union. If J -10, ARJ-21, then played the overture, four generations is a rite of China Airlines. The rite of significance.

Russia has one of the world's great aviation technology, from the Soviet MiG -15 to -27, the Soviet Union has represented the aviation world aviation outside the United States the highest level. But the Soviet Union, continue to the mantle of the Soviet Union the Russian Aviation and aviation technology system on the brink of collapse in essence, lack of funds, lack of project, the brain drain, loss of courage that began from the early 90's fifth-generation fighter several ups and downs so far super, but the level of technology demonstrator. T-50 is the final fate will be better than the MiG I.42 or the Sukhoi S-37, is still far from conclusive to the next time. Even worse, T-50 is not thinking in the design of major changes over the realm of the Soviet Union -27, technical insight and even less than the MiG I.42 or the Sukhoi S-37. Taking into account the Russian economy away from China, high-speed, stability and development there is a great distance, if this is the highest level of the Russian Aviation Russian Aviation and has since been left behind in China is almost a no suspense thing. And the Soviet Union self-Banded predatory economic development road opposite the Chinese economy chicken-raising walk the road of sustainable development. This difference may make Russian aviation technology permanent reversal of comparative advantage.

This specific technology in the Russian Aviation and still is not where China can learn from conflict. J -10 still using the Russian AL-31, the fourth generation to use what the engine does not know. Lyulka AL-31 is Russia's first generation of turbofan engines, along with contemporaries Klimov RD-33, Suoluo Wei Aliyev D-30. 40 years later, the Russian turbofan stay in the same basic technology , when will leap to the next state is also perhaps, this intermediate is in no small degree of disintegration of the Soviet Union 20 years after the Russian aircraft that made the reasons for stagnation of scientific research, and the Soviet Union began the era of quick success, the pursuit of the technology available routes are not unrelated. WS6 abortion is not the case, "Taihang" turbofan is the first generation. And remain in the card then the need for early introduction of AL-31 SU -27 pressing equipment is not the same as the Chinese do not have particularly pressing need, the need to "Taihang" immediately became the F -10, F -11's main engine, and is at least the level of General Electric F110 do not have to rush to a large-scale equipment, which is the General Electric F110 turbofan of the second generation (F100 is the second generation of Pratt & Whitney turbofan, the first generation is the TF30). Reference to China in aerodynamic fighter, materials, manufacturing growth rate, China's second-generation turbofan WS15 than in the technical level, Russia is not inconceivable. AIDC advanced materials, manufacturing, of course challenging, but advanced aerodynamic and flight control is it not? The difference is easy to see the achievements of the latter, easily recognized, while the former is relatively "invisible" people have more doubts are natural. Over time, four generations, and WS15's advanced technology can be part of the "decentralization", "Fierce Dragon", "Tianshan" low-cost technologies that can benefit from China's low-cost and high-performance fighter aircraft will further reduce the survival of the Russian air space, accelerate the polarization of Russian aviation.

Represented in the history of European advanced technology, but after World War II, hard hit by the strength of European aviation, from the individual countries (such as Britain, Germany, in World War I but also with France), the advantages of the United States have fallen to remain united can not balance the United States. In the field of combat aircraft in Europe and the United States has abandoned attempts to form the balance of power, but the nature of the Chinese catch up or a completely different question. European economy is still developed, the European aviation technology still has sufficient strength, as long as there is sufficient political will, Europe has the capability to develop four generations. But deep under the weight of economic and social crisis, Europe has no stomach for the development of four generations, is developing the unmanned combat aircraft can not substitute for four generations, but four generations of the supplement. More important, Europe has lost its world domination ambitions, the European intention to challenge the U.S. hegemony, have no appetite and travel across the ocean to find the trouble in China, the traditional threat of Russia has fallen to second-rate empire, Europe in fact there is not enough dynamic development of four generations. In the "Gripen", the Swedish aviation has been independently developed by someone in the future to give up the efforts of the fighters. Air France in the "gust" on not getting the expected return, but were too difficult, but also to discuss the future of independent research and has given up more than ten years. European cooperation has always been easier said than done a thing, "gust", "Typhoon" split the British and French can not resolve their differences is the result, Airbus is also a British withdrawal Houhuo Ke - West Dry expense Liuxiaranhou re-enter the UK as second-class partners The. Europe, with four generations of the things on paper do not, become a reality but also the foreseeable future. In the high input, high-risk industries, the major powers to "dictatorship", the multinational cooperation is always facing a great problem of political will, this point, the multi-national cooperation will never match the great powers alone. The question is, riding a boat behind. Once the loose in Europe, is not easy to catch up again, enough power to catch up more difficult. As long as the world's political, military change in trend no changes, China's security interests in Europe and there is no danger of confrontation, the Chinese economy to continue its rapid development, slow growth in Europe continue to suffer the plight of fighter technology gap between China and Europe will be more widening.

In China's neighboring countries, Japan, Korea, India also has a strong aviation ambitions. Japan's long-term is the second largest economy in the world, with a large number of advanced technologies; South Korea is a rising star, even more than on the ambitions of Japan; India's unique culture and mentality to make comparisons with the Chinese aviation industry in India is also on the ambitious. Due to different reasons, Japan, Korea, India did not succeed in establishing a sustainable aviation industry, the fourth generation fighter did not exceed the paper stage.Japan plans first flight in 2014, ATD-X technology demonstrator, also known as "mind", but the plane's maximum takeoff weight of only 8 tons, or double, not enough machine equipped with avionics and space weapons, the basic does not have any room to become fighters. In addition to verify the number of stealth technology and basic aerodynamic performance, it is difficult to achieve over patrol. Even if the ATF-X in a short time to be fully successful, zoom into the practical value of the fighter needs to at least the maximum takeoff weight of 30 tons, this is a completely different plane. The information on the public, Japan has no such plans, even far away from achieving.AMCA scheme has been launched in India, intends to develop the normal take-off weight of 20 tons of double four. In terms of public information has been India's plan is more specific than in Japan, but the AMCA more problems, but that is another topic. South Korea's KF-X is even more tragic, the starting point not as good as Japan, India, when can become a reality hard to say. The emergence of four generations of both of these neighboring countries can stimulate China's ambition to catch up, you can force them to recognize reality. Is to have the strength to catch up is not a general scientific and technological strength, but the scientific research system and aviation-related, including wind tunnel group, supercomputers, research institutes and from the host to the parts manufacturers, which is a serious lack of neighboring countries, so catch up on the lack of objective conditions. Subjectively, 90 years, China's military spending, although GDP growth, but the proportion of GDP actually declined, the military spending-GDP ratio is less than half of the United States. In other words, engage in arms race, then China's potential is difficult to match the rest of the world, and neighboring countries more so. That neighboring countries would recognize the reality and give up the arms race it? Overwhelming in China before the formation of neighboring countries will not give up their fantasies, some form of arms race will continue. However, Japan, Korea, India in a short time is difficult to fill the gap of four generations, the United States refused to export F-22, F-35 则 bullying F -10, F -11 are struggling, how to engage in an arms race in the neighboring countries, but also to be seen.

Four generations on the Taiwan issue is also significant. Taiwan independence is the most rampant when the Taiwan Strait since Taiwan that has 90 air superiority. At that time, J -7, -8 F represents a continent the size of the Air Force has the highest level of combat, while Taiwan's IDF, F-16, Mirage 2000 is pouring out equipment, the gap is startling.However, air superiority over the Taiwan Strait have changed and the F -10, F -11 leveled at least the technical level of cross-strait air force, four generations of the decisive kick to kick over the balance, plus missile advantage, Taiwan's air force has been unable to play, and buy F-16C will not work. If the U.S. decided to sell F-35, then the same help. Absolute advantage in the mainland's military is a stabilizing factor in the Taiwan Strait. Only put an end to the illusion of independence, the two sides have peace.

For Southeast Asian countries, the role of four generations of the same. China has never stood for peaceful coexistence and common development. Four generations of the absolute advantage in favor, in some countries give up their fantasies and seek peace and development. China's policy has always been a win-win situation, some countries always want to dig a corner of China. Four generations can be "persuaded" not to be active in these countries had thought.

In addition to F-22, the world is not in the foreseeable future can Yade Zhu fourth generation fighter aircraft, that is, whether the F-22 in the end more than four generations, is a debatable thing. On the other hand, the United States closed the F-22 production line, refused to sell to any ally F-22, that there may be a lack of their own to deal with the U.S. F-22 fighter at the level of effective means of reason, can not control this country re- not entrusted to any 100% United States control of the country. The only comparable, and four generations of fighter F-35, but the lack of super-tour, ultra mobile to rely on F-35 combat system and four generations, and China in the system rapid progress is being made, F-35 rely on four generations of combat systems and rapidly close the window. All this points to an interesting fact: whether at the strategic level or tactical level, or fighting, no U.S. allies will be able to single out China; as a supporting role, any U.S. allies will serve as a minor supporting role, and even qualified for the vanguard to fight no. This is unlike the case of three generations, the Dutch F-16, Australia F-18 or MiG -29 and the Soviet Union to China to play a dozen Su--27. Abolition of four generations of these "second-rate air force" to qualify. This is not to say that before the appearance of four generations of Chinese and U.S. Air Force has not hit a dozen qualifications. China is a major country, the first useful to the body of flesh and blood and opponents Sike frame, the second against a useful system to make up for the ability of these are "second-rate air force" are not available.

Four generations of advanced equipment is expensive, but the fourth generation to bring the dividends of peace and development far exceeds the investment. The development of advanced military technology is not for hegemony in the world, but to protect and promote peace. This is the development of the right path.

Some U.S. military experts and even by the so-called "J -20 pictures" for professional interpretation to analyze the performance of this mysterious fighter, and then with the United States compared with the type of equipment.

According to the U.S. Fox News reports, the Navy's top pilots in Iraq have been 44 combat missions over Matthew Buckley said, "It (F -20) may suddenly fly in front of us, this is indeed a cause for concern . "Buckley said, the F -20 irregular shape of the fuselage, while there is no external fuel tanks and missiles, the system, hence, have a good stealth performance. "We can say that J -20 with a fairly sophisticated stealth design, compared to me drive the F-18 on the radar screen as a 18-wheeled carriage."


International Assessment and Strategy Center website published the Chinese military expert Richard Fisher speculated that, with J -20 is in the R & D into the engine, its thrust is expected to reach 15-18 tons, will be more than F- 22.Fisher said: "According to the information we learned, J -20 is indeed in some ways better than the F-22, or even can be concluded that it is completely stronger than the F-35." There are some Western experts believe that the fighter, the F - 20 In the supersonic cruise and sensitivity may be weaker than the F-22, but may be equipped with more weapons and tanks, and carry more fuel.