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Chinese J-20 and J-31 5th Generation Fighter Jets

Discussion in 'China & Asia Pacific' started by Martian, Dec 23, 2010.

  1. RMLOVER

    RMLOVER Lieutenant FULL MEMBER

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    At least, the J20 is already in service even though it is not up to the standard of stealthy like F22.

    However, J22 can be upgraded by the meantime. The manufacturer can improve many aspects from what they get during the service in the PLA Airforce ,such as WS15 engine which is still under development. Then, a few years later, you will see J20-A, or J20-B just like the evolution of J10-J10A-J10B-J10C.

    This is the way the Chinese to do things. For example. The former No.1 supercomputer in the world , Chinese Tianhe -2 used Intel CPUs. Now the current No.1 ranking supercomputer in the world, the Taihu Light system, nearly triple the previous record-setting numbers of another Chinese supercomputer, Tianhe -2. These results were achieved using a Chinese designed and fabricated 28nm System -on -Chip (SOC) architecture. This announcement was coupled with impressive advancements in indigenously developed system software and high performance computing ( HPC) applications , as shown by having three Chinese research teams as finalists for the 2016 Gordon Bell prize. These results indicate that China has attained a near -peer status with the U.S.
     
    Last edited: Apr 4, 2017
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  2. layman

    layman Aurignacian STAR MEMBER

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    Just How Good Is China’s New J-20 Stealth Fighter?
    Published April 6, 2017
    SOURCE: POPULAR MECHANICS

    [​IMG]

    China’s first stealth fighter, the Chengdu J-20, “has the potential to provide China with a variety of previously unavailable air combat options and enhance its capability to project power.” That’s the conclusion of the Center for Strategic and International Studies, a Washington D.C.-based security think tank. CSIS also concludes that the fighter, first flown in 2011, could enter service as soon as 2018.

    The J-20 shocked the world in 2011, when China unveiled the plane during a state visit by Secretary of Defense Robert Gates. Although China was known to be working on a large fighter, known as the J-XX, the extent to which the country had made progress on a so-called “fifth generation fighter”—which only the United States had successfully developed—shocked experts.

    CSIS assesses the J-20 as a full fifth-generation fighter, which means it includes stealth technology, supersonic cruising speed, and highly integrated avionics as part of the criteria. It also believes that at 34,000 to 37,000 kilograms, the J-20 is slightly lighter than the American F-22 Raptor.

    Like the F-22, the J-20 is powered by two afterburning turbofan engines. The rearward placement of the engines, according to CSIS, likely means it has more useable internal volume than the F-22. Stealthy aircraft, to remain stealthy, must hide weapons and fuel in internal bays within their fuselages. The J-20 has three such bays, two for smaller air-to-air missiles and a single large belly bay for larger air-to-air, anti-ship, and air-to-ground missiles.

    CSIS notes that others see the J-20 going in one of two directions: a long range air-to-air fighter or a strike fighter capable of penetrating advanced air defenses. The aircraft is large and heavy enough to do either, but its emphasis on frontal stealth and relative weakness when scanned by radar from different angles suggests it would not do well penetrating deep into enemy territory.

    The most obvious weakness at this point is the lack of a suitable engine. China originally wanted to purchase Saturn AL-41F1S engines for the J-20, the same engine that powers the Su-35 fighter, but Russia would rather sell whole aircraft (complete with higher profit margins) instead of merely engines. China has encountered problems designing high performance aircraft engines but is committed to developing a domestic engine for the J-20.

    One mystery: as this article points out, if the J-20 is such an amazing plane, why is China buying Su-35 fighters? China is purchasing 24 modernized Su-35 Flanker-E multi-role fighters from Russia that fit a similar role. China may be doing so in order to harvest the technology, particularly the engines, phased-array radar, and electronic warfare capabilities

    Source
     
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  3. layman

    layman Aurignacian STAR MEMBER

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    Does China’s J-20 rival other stealth fighters?


    The Chengdu J-20 marks the first entry of a multirole stealth fighter into China’s armed forces. According to the Department of Defense (DOD), China views stealth technology as a core component in the transformation of its air force from “a predominantly territorial air force to one capable of conducting both offensive and defensive operations.” Designed for enhanced stealth and maneuverability, the J-20 has the potential to provide China with a variety of previously unavailable air combat options and enhance its capability to project power.

    Explore a 3D model of the J-20

    For more, watch our short video

    DEVELOPMENT OF THE J-20
    As an advanced multirole stealth fighter, it is speculated that the J-20 can fulfill both air-to-air and air-to-ground combat roles for the People’s Liberation Army Air Force (PLAAF) and the aviation branch of the People’s Liberation Army Navy (referred to as either Naval Aviation or the PLAN-AF). According to PLAAF Senior Colonel Shen Jinke, the J-20 will enhance the overall combat capability of China’s air force. A 2016 report by the DOD states that the J-20 represents a critical step in China’s efforts to develop “advanced aircraft to improve its regional power projection capabilities and to strengthen its ability to strike regional airbases and facilities.” In 2014, the US-China Economic and Security Review Commission described the J-20 as “more advanced than any other fighter currently deployed by Asia Pacific countries.”

    The J-20 is believed to be equipped with subsystems and field signature reduction technology that collectively meet the internationally-accepted classification of a “fifth-generation” aircraft. This refers to military aircraft featuring the general requirements of stealth technology, supersonic cruising speed, and highly integrated avionics. The J-20 is the first Chinese aircraft to fit this description, and it may serve as a critical asset for both the air force and the navy. As these branches have different areas of responsibility, how the J-20 is ultimately utilized is likely to vary. In broad terms, the PLAAF is China’s mainstay for air operations and is responsible for homeland air defense, while Naval Aviation is tasked with fleet air defense and defending the territorial waters and coastline of China.

    It is worth noting, however, that China’s criteria for defining aircraft generations differs from accepted international standards. China defines aircraft generations based upon when an aircraft was integrated into the air force. Per China’s criteria, the J-20 is considered a fourth-generation aircraft.



    Aircraft Generations
    Generation
    International Standard Chinese Standard
    1st Circa 1945-1955 aircraft, such as:
    F-86. Aircraft deployed in 1950s-1960s, such as:
    J-5 & J-6.
    2nd Circa 1955-1960 aircraft, such as:
    F-104 & F-105. Aircraft deployed in 1970s-1980s, such as:
    J-7 & J-8.
    3rd Circa 1960-1970 aircraft, such as:
    F-4. Aircraft deployed in 1990s-2000s, such as:
    J-10 & J-11.
    4th Circa 1970-1990 aircraft, such as:
    F-15 & F-16. Aircraft deployed in 2010s, such as:
    J-20.
    5th Circa 1990-present aircraft, such as:
    F-22 & F-35. N/A


    Currently, the United States is the only country with a fully operational fifth-generation fighter. Several other countries including Russia, India, and Japan are currently in the process of developing their own advanced stealth fighters that fit this classification.

    The J-20 is one of two stealth fighters being simultaneously developed in China. The other aircraft is the Shenyang FC-31, a smaller multirole stealth fighter that is being developed by the Shenyang Aircraft Corporation and could potentially be commercially exported to other countries. The two Chinese stealth fighters may have been designed to complement each other in a similar manner to the planned deployment of the F-22 and F-35 by the United States. At present, China and the U.S. are the only two countries that have concurrent stealth fighter programs.



    The PLAAF . . . views [stealth] technology as a core capability in its transformation from a predominantly territorial air force to one capable of conducting both offensive and defensive operations.
    DEPARTMENT OF DEFENSE



    According to General David L. Goldfein, Chief of Staff of the U.S. Air Force, information-age fighters like the J-20 are designed to link into national defense networks, which enables these cutting-edge fighters to access real-time information supplied by satellites and unmanned air vehicles (UAVs). As a result, the J-20, like the F-35, should be assessed as part of a “family of systems” instead of a standalone aircraft.

    In March 2017, it was announced that the J-20 had entered service, but the aircraft is unlikely to be fully operational until 2018 or 2019.

    COMPARING THE J-20 TO OTHER STEALTH FIGHTERS
    The J-20 is part of a small but elite group of advanced fighters either currently in service or under development, including the F-22 Raptor and the T-50 PAK-FA. Early reports over-estimated the J-20’s length at approximately 23 meters (m), but satellite imagery has reliably shown the J-20 to be between 20.3 and 20.5 meters long – making it comparable in size to both its American and Russian counterparts.

    It has been reported that the J-20 is expected to feature a Maximum Takeoff Weight (MTOW) of 34,000 – 37,000 kilograms. By comparison, the F-22 has an MTOW of 38,000 kilograms, and the T-50 has an MTOW between 35,000 – 37,000 kilograms. Some analysts have suggested, however, that it is unlikely for the J-20 to have a lower MTOW than the F-22. Both aircraft are similar in size, and it is likely that the more rearward placement of the J-20’s engines in its fuselage relative to F-22 offer the Chinese fighter a substantially greater internal volume.



    [​IMG]
    Aircraft
    Length Height Wing Span Maximum Take-off Weight Fuel Capacity
    J-20 20.3 – 20.5 m 4.45 m 12.88 – 13.5 m 34,000 – 37,000 kg 25,000 kg / 12,000 kg (w/o external tanks)
    F-22 18.90 m 5.09 m 13.56 m 38,000 kg 11,900 kg / 8,200 kg (w/o external tanks)
    T-50 PAK FA 19.8 – 20.8 m 4.74 – 5.10 m 13.95 – 15.0 m 35,000 – 37,000 kg 10,300 kg
    Figures for the J-20 and T-50 are estimates and likely to change as more information becomes available.
    In terms of armaments, the J-20 contains two lateral bays for small air-to-air missiles and a larger bay under the fuselage for a variety of missiles and surface attack weapons. This is similar to the weapons bay configuration of the F-22, but different from the Russian T-50, which instead holds two small and two large weapons bays.

    The J-20 is also slated to carry a variety of advanced electronic systems. This technology includes an active electronically scanned array, a chin mounted infrared/electro-optic search and track sensor, and a passive electro-optical detection system that will provide 360° spherical coverage around the aircraft. These systems are expected to be comparable to those found inside the F-35. Additionally, the J-20 is likely to field an advanced communications suite that will enable it to datalink with friendly platforms in service and platforms under development, such as the Divine Eagle airborne early warning drone.

    The J-20 is currently fitted with Russian AL-31 engines, but China is developing a new, more powerful powerplant. Chen Xiangbao, an Aero Engine Corporation official, announced on March 13, 2017 that the J-20 will soon feature next-generation engines. Reports indicate that China plans to upgrade the J-20 in the coming years with the Chinese-made WS-15 engine, which would provide the J-20 with sustained supersonic travel (supercruise). This new engine may rival the cutting-edge Pratt & Whitney F119 engine currently used by the F-22. Compared to the older engines, the WS-15 would enable the J-20 to travel further while consuming less fuel and fly faster for longer periods of time. Other countries with advanced militaries, such as the U.S., Russia, and many European countries, all have fighter aircraft with supercruise capability.

    Can't play this video? Click here.

    Using a Physical Optics simulation algorithm, co-founders of the Air Power Australia think-tank Dr. Michael Pelosi and Dr. Carlos Kopp determined that the J-20, like the F-22, has also achieved some Low Observable design goals for enhanced stealth. Such a design allows the J-20 to bypass radar and electronic countermeasures with low to zero visibility. However, some aspects of the J-20, such as the round nozzle of its interim engines (the WS-15 may have a stealthier design) may work against its stealth capabilities. The T-50 may share a similar rear aspect signature reduction, but it is worth noting that both aircraft likely boast superior signature reductions when compared to fourth generation fighters. In contrast, the F-22’s Pratt & Whitney F119 engines have square nozzles, which improve stealth.

    Many details regarding the J-20 remain unknown. Based on observed serial numbers and the recent unveiling of two J-20’s at the Zhuhai Air Show in November 2016, at least eleven J-20s may have already been produced. This number may suggest that the J-20 has now entered low-rate initial production (LRIP), the small-quantity testing phase prior to mass production. Experts differ on the J-20’s flyaway cost – the marginal per-unit production cost, with estimates ranging from $30 million to up to $120 million. By comparison, the F-22 has a per-unit cost of $143 million while the T-50 is estimated to cost less than $100 million. Peter Singer notes that China is likely capable of mass-producing the J-20, but it remains unclear how many J-20s will be produced. Higher-end estimates indicate that several hundred J-20s will be produced to replace older fighters.

    HOW MIGHT CHINA UTILIZE THE J-20
    The J-20 has the potential to considerably enhance China’s regional military strength. According to a 2014 U.S. Naval War College report, an operational stealth fighter would “immediately become the most advanced aircraft deployed by any East Asian Power,” surpassing the aircraft fielded in India, Japan, Australia, Indonesia, or Taiwan. The U.S.-China Economic and Security Review Commission advances a similar assessment, noting that the arrival of the J-20 will enhance China’s military leverage against opposing forces in the region. With the J-20 expected become fully operational in the next couple of years, the PLAAF has a considerable head start over the Indian, Japanese, and Korean air forces, which are not slated to put their locally-made advanced fighter counterparts into service until the 2020s.

    Opinions vary about the J-20’s comparative strengths as an air superiority (air-to-air) fighter or a strike (air-to-ground) aircraft. Some analysts believe that the J-20’s emphasis on frontal stealth makes it an effective long-range interceptor, meant for mid-air engagements. Others see the J-20 as a long-range strike aircraft, best suited for penetrating enemy air defenses and damaging critical infrastructure on the ground. Such high-value targets would include airfields, command bases, and other military installations. A 2015 RAND report noted the J-20’s “combination of forward stealth and long range could hold U.S. Navy surface assets at risk, and that a long-range maritime strike capability may be a cause for greater concern than a short-range air-superiority fighter like the F-22.” The J-20’s size and weapons configuration may, however, preclude it from functioning as an effective strike fighter in either context. Importantly, the mission types Chinese pilots are trained for may determine how the J-20 is eventually utilized.

    Milestones in Development
    Date
    Milestone
    January 11, 2011 J-20 completes its first test flight.
    December 26, 2015 New J-20 prototype spotted, J-20 possibly enters low-rate initial production phase.
    November 1, 2016 China debuts the J-20 at the 11th China International Aviation & Aerospace Exhibition in Zhuhai.
    March 9, 2017 It is reported that the J-20 has entered service with the PLAAF.
    Reports differ regarding the J-20’s range, which is expected to fall between 1,200 and 2,700 kilometers. Regardless of this uncertainty, the J-20’s combat radius is likely to extend well-beyond the Chinese mainland. The U.S. Naval War College suggests that the J-20 could be an “effective surface-attack platform for out to several hundred nautical miles at sea.” Air Power Australia notes that the J-20 would be a suitable choice of aircraft for operating within China’s “first island chain” and “second island chain.” Should China integrate aerial refueling aircraft with the J-20, the stealth fighter’s operational range would extend even further across the Asia-Pacific.

    Increased range offers China considerable flexibility in terms of basing options. Basing the J-20 further inland means the J-20 can conduct distant missions before returning to the relative safety of China’s Integrated Air Defense System. This modernized aerial defense net – composed of early warning sensors, long-range surface-to-air missiles, and air interceptors – may deter opposing air forces from pursuing J-20s into the mainland.

    Source
     
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  4. RMLOVER

    RMLOVER Lieutenant FULL MEMBER

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    Does China’s J-20 Rival Other Stealth Fighters? (excerpt)
    (Source: CSIS China Power group; posted April 6, 2017)
    http://www.defense-aerospace.com/article-view/release/182701/.html
    The Chengdu J-20 marks the first entry of a multirole stealth fighter into China’s armed forces. According to the Department of Defense (DOD), China views stealth technology as a core component in the transformation of its air force from “a predominantly territorial air force to one capable of conducting both offensive and defensive operations.”

    Designed for enhanced stealth and maneuverability, the J-20 has the potential to provide China with a variety of previously unavailable air combat options and enhance its capability to project power.

    Development of the J-20

    As an advanced multirole stealth fighter, it is speculated that the J-20 can fulfill both air-to-air and air-to-ground combat roles for the People’s Liberation Army Air Force (PLAAF) and the aviation branch of the People’s Liberation Army Navy (referred to as either Naval Aviation or the PLAN-AF). According to PLAAF Senior Colonel Shen Jinke, the J-20 will enhance the overall combat capability of China’s air force.

    A 2016 report by the DOD states that the J-20 represents a critical step in China’s efforts to develop “advanced aircraft to improve its regional power projection capabilities and to strengthen its ability to strike regional airbases and facilities.” In 2014, the US-China Economic and Security Review Commission described the J-20 as “more advanced than any other fighter currently deployed by Asia Pacific countries.”

    The J-20 is believed to be equipped with subsystems and field signature reduction technology that collectively meet the internationally-accepted classification of a “fifth-generation” aircraft. This refers to military aircraft featuring the general requirements of stealth technology, supersonic cruising speed, and highly integrated avionics. The J-20 is the first Chinese aircraft to fit this description, and it may serve as a critical asset for both the air force and the navy.

    As these branches have different areas of responsibility, how the J-20 is ultimately utilized is likely to vary. In broad terms, the PLAAF is China’s mainstay for air operations and is responsible for homeland air defense, while Naval Aviation is tasked with fleet air defense and defending the territorial waters and coastline of China.

    It is worth noting, however, that China’s criteria for defining aircraft generations differs from accepted international standards. China defines aircraft generations based upon when an aircraft was integrated into the air force. Per China’s criteria, the J-20 is considered a fourth-generation aircraft.

    Currently, the United States is the only country with a fully operational fifth-generation fighter. Several other countries including Russia, India, and Japan are currently in the process of developing their own advanced stealth fighters that fit this classification.

    The J-20 is one of two stealth fighters being simultaneously developed in China. The other aircraft is the Shenyang FC-31, a smaller multirole stealth fighter that is being developed by the Shenyang Aircraft Corporation and could potentially be commercially exported to other countries.

    The two Chinese stealth fighters may have been designed to complement each other in a similar manner to the planned deployment of the F-22 and F-35 by the United States. At present, China and the U.S. are the only two countries that have concurrent stealth fighter programs. (end of excerpt)
     
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  5. mirage

    mirage 2nd Lieutant FULL MEMBER

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    i will be polite in conversation with you as i dont want chinese posters to run away from here , rather i want them to come here often :azn: . tell you something bao bei , our air chief marshall is not ignorant and fool like chinese air marshal and all the keyboard chinese warriors on the internet . problem is you and i shall assume chinese airforce dont know what and which package of technology rafale Bharat will get but our air chief marshall is fully aware of that and i dont need to assume china is a dud when building a 100% potent indigenous 4th generation fighter jet is concerned leave aside 5th gen . your xin hua state propaganda is losing shine and lust it use to have few years ago .

    just thought to share some ferrari photos which are being made in china .

    st_counterfeitcars8_f.jpg Ferrari1_590.png
    bye for now :)
     
    Last edited: Apr 18, 2017
  6. PeegooFeng41

    PeegooFeng41 2nd Lieutant FULL MEMBER

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    You are certainly aware that why China had to go for her own CPUs? It was due to Obama restricting Intel Xeon-Phi co-processors to them. It wasn't an evolution but a compromise. The Sunway chip produced was a modified copy of Digital Alpha chip. And I will not call it a SoC. It was more of a processor as the memory was not on the Chip or even Package.

    On the software for super computer side, this chinese super computer is notoriously hard to develop against because of lack of parallelizing frameworks and compilers. Intel rules the roost here.

    In short, this entire monstrosity is more of an eyewash, a cheap knock off of an American architecture with questionable software support. It was more of a project to tout Chinese semiconductor industry at the request of CCP.
     
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  7. RMLOVER

    RMLOVER Lieutenant FULL MEMBER

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    Well, Chinese supercomputer Sunway Taihu light, used home-made CPUs, is ranked No.1 in the world, and this is just a small achievement as the Chinese scientists working on world's first quantum computer, A quantum computer will be terascale. An equation set might take the Tianhe-2 supercomputer 100 years to solve, but the quantum computer will solve it in just 0.01 seconds. Tianhe-2 was the fastest computer since 2013 but was replaced by another Chinese supercomputer, Sunway TaihuLight, last year.

    So, what you said is just jealousy and desperation. Chinese supercomputer technology is at least 10 years ahead of Indian.
     
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  8. PeegooFeng41

    PeegooFeng41 2nd Lieutant FULL MEMBER

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    And you certainly have no understanding of high performance computation. Chinese have merely created a monster which is very difficult to feed in terms of software. Developing -- more like stealing from US -- architecture and manufacturing hardware is the easy part. Hard part is to create software which will scale over it. Compilers which can parallelize programs written.

    Chinese are well, shall we say still trying to steal that. All they have is a monstrosity which can run Top 500 benchmark and otherwise it is useless as no half way decent software can be written for it.

    Quantum computers are NOT exactly the next in evolution for high performance computing. It is more on the lines of asymmetric architectures having different types of cores combined in a single chip or may be a FPGA-processor hybrid. Both are mastered by Intel and IBM. Chinese are nowhere to be seen. Again it is because of lack of understanding in Chinese about algorithms needs to produce massively parallelized programs.
     
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  9. RMLOVER

    RMLOVER Lieutenant FULL MEMBER

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    Latest photo



    [​IMG]
     
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  10. Peacekraft

    Peacekraft BANNED BANNED

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    Beautiful!
     
  11. Peacekraft

    Peacekraft BANNED BANNED

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    Lol, keep moving the goal post. Wait, or maybe it's no true Scotsman. ;) When your rival can create undisputedly better hardware, say it's the software that matters(as software is more subjective). When your rival can create software that is undeniably better, say it's the integration or some other facade to hide the one single truth:
     
    Last edited by a moderator: Apr 25, 2017
  12. RMLOVER

    RMLOVER Lieutenant FULL MEMBER

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    Russian Su-35 is best sparring trainer for Chinese J-20

    The Chinese can not buy the American F-22 or F-35 for training with the new J-20, therefore, buying the Russian Su-35 for training with the J-20 is the only option since the Su-35 is the closest rival which the Chinese can buy.

    After training with the Su-35, the J-20 can be upgraded to better version based on the training data. The J-20B, J-20C with better homemade WS-15 turbo fan engine and better stealth design can be expected in few years later.

    At the beginning, the Chinese just wants to buy 2 Su-35 for trial, but the Russian knows the capability of the Chinese. Therefore, the minimum 24 Su-35 fighters for USD2bn is the deal .

    Anyway, 24 Su-35 fighters are enough for training with the J-20, J-16, J-11B , J-10C and so on.



    China buys 24 advanced Russian Su-35 warplanes in estimated $2bn
    https://www.rt.com/news/322659-china-russia-su35-deal/

    [​IMG]
     
    Last edited: Apr 28, 2017
  13. David1107

    David1107 IDF NewBie

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    I hope that in the near future, India will be able to independently develop the fifth generation stealth fighter.
     
  14. xxqa_ds

    xxqa_ds FULL MEMBER

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    You have to be rational, open your eyes, “general”. What is on the main said: j-20,don't bullshit.
     
  15. lca-fan

    lca-fan Major SENIOR MEMBER

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    China's secretive J-13 stealth fighter revealed: Latest prototypes of plane that could take on the F-35 are pictured
    By Stacy Liberatore For Dailymail.com23:04 02 May 2017, updated 23:26 02 May 2017

    [​IMG]
    • China has been ramping up testing for its secretive J-13 stealth fighter jet
    • Craft said to be the same size as America's F-35 and could replace China's J-10s
    • Has a range of 775 miles, carries up to 28 tons and reaches Mach 1.8 speeds
    • However, the first prototype seemed to be less equipped for the battlefield
    It has been said to rival America's F-35 fighter jet.

    China's improved J-31 is poised to be the nation's stealth fighter for aircraft carriers and would ultimately take the place of the current single-engine J-10s.

    ADVERTISEMENT

    Developed by the Shenyang Aircraft Corporation (SAC), the twin-engine J-31 is similar in size to the F-35, has a range of 775 miles, can transport up to 28 tons and is able to reach Mach 1.8 speeds.

    [​IMG]
    China's improved J-31 is poised to be the nation's stealth fighter for aircraft carriers and would ultimately take the place of the single-engine J-10s that are currently used in battle. The craft has been spending more time in flight tests - suggesting it could soon be put into action
    WHAT ARE THE FEATURES?
    Developed by the Shenyang Aircraft Corporation (SAC), the twin-engine J-31 is similar in size to the F-35, with a range of 775 miles, can carry up to 28 tons and is able to reach Mach 1.8 speeds.

    SAC foresees its craft ultimately replacing the J-10s and the firm may market the J-31 to other nations that are barred from purchasing America's F-35.

    The craft boasts an IRST sensor, stealth capabilities, better radar technology and cleaner burner engines.

    The team also went as far as to replace the WS-13 engines with domestic WS-13E or WS-17 turbofan engines that give it more speed.

    China ranks second in the world's military budget, with $145.8 billion dollars, and it seems the Asian country is looking to use a good portion of its funding to modernize its artillery.

    Reports have suggested that the Chines People's Liberation Army currently has approximately 2,200 operational aircraft – but only 600 of which are considered modern.

    China first showed-off the J-31 in 2014 at an airshow, which it rose in a nearly vertical climb on take-off in Zhuhai before circling back and doing two rolls.

    The fighter's Chinese name is 'Falcon Eagle' and it is manufactured by a unit of Aviation Industry Corp. of China (AVIC), whose defense arm uses the slogan: 'We are making the best weapons for guardians of the peace.'

    But the plane's first public appearance came at a time when tensions were high between China and its neighbors over territorial disputes, particularly Japan which has feuded with Beijing over a group of islands in the East China Sea.

    SAC foresees its craft ultimately replacing the J-10s and the firm may market the J-31 to other nations that are barred from purchasing America's F-35.

    RELATED ARTICLES

    [​IMG]
    Developed by the Shenyang Aircraft Corporation (SAC), the twin-engine J-31 is similar in size to the F-35, with a range of 775 miles, can carry up to 28 tons and is able to reach Mach 1.8 speeds. This is the second version of the prototype the firm has developed
    However, getting to a point where China is ramping up flight tests was a long journey.

    According to Jeffrey Lin and P.W. Singer with Popular Science, the first variant of J-31 was not equipped with cutting-edge technology.

    [​IMG]
    The firm gave the prototype another go in December 2016 and this time, the plane was heavier and longer than its predecessor. In addition to size, the craft was fitted with an IRST sensor, stealth capabilities, better radar technology and cleaner burner engines (concept drawing)
    It 'did not fly with advanced avionics like an infrared search and track (IRST) sensor and stealth features like swept vertical stabilizers, suggesting its role to be a proof of concept for testing SAC's stealth technology, and hopefully attract buyers,' they reported.

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    And when SAC attempted to market the plane as 'an export fifth generation fighter' it feel short among both national and international buyers.

    AMERICA'S F-35 IN FIGURES
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    Role: Stealth multirole fighter

    First flight: December 15, 2006

    Unit cost (not including engine):

    F-35A - $98million

    F-35B - $104million

    F-35C - $116million

    Number built: 115 (as of November 2014)

    Length: 51ft (15.67m)

    Wingspan: 35ft (10.7m)

    Height: 14ft (4.33m)

    Max speed (F-35A): 1199mph (1,930kph)

    The firm gave the prototype another go in December 2016 and this time, the plane was heavier and longer than its predecessor.

    In addition to size, the craft was fitted with an IRST sensor, stealth capabilities, better radar technology and cleaner burner engines.

    [​IMG]
    In addition to size, the craft was fitted with an IRST sensor, stealth capabilities, better radar technology and cleaner burner engines (concept drawing)
    The team also went as far as to replace the WS-13 engines with domestic WS-13E or WS-17 turbofan engines that give it more speed.

    Now, the J-31 is about the same size as the F-35, has a range of 775 miles, is strong enough to carry up to 28 tons and reaches Mach 1.8 speeds.

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    Lin and Singer noted that 'the combination of the J-31's high speed performance, and suggested payload of 6 PL-12 or 4 PL-21 long range air to air missiles suggests that the J-31 has been optimized as an air superiority fighter'.

    [​IMG]
    China first showed-off the J-31 in 2014 (pictured) at an airshow. But fells short because it 'did not fly with advanced avionics and stealth features, suggesting its role to be a proof of concept for testing SAC's stealth technology, and hopefully attract buyers'

    https://www.google.co.in/amp/www.da...-secretive-J-13-stealth-fighter-revealed.html
     

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