Page 1 of 3 123 LastLast
Results 1 to 20 of 42

Thread: China's J-31/F-60 Shenyang stealth fighter

Share             
  1. #1
    Professionals Martin's Avatar
    Join Date
    Sep 2012
    Posts
    540
    Thanks
    1430
    China's New J-31/F-60 Stealth Fighter Welcomes Visit By U.S. Defense Secretary Leon Panetta


    The most shocking feature of China's new J-31 stealth fighter, which resembles a F-22 Raptor (e.g. America's premier stealth fighter) with integrated DSI (diverterless supersonic inlet), is the twin engines.

    Are the twin engines designed to provide supercruise capability for the J-31? If so, the Chinese J-31 is clearly superior to the supercruise-incapable American F-35 in this critical flight performance.

    [Picture credit: bbs.tiexue.net]
    The Following 2 Users Say Thank You to Martin For This Useful Post: Greater China,Neo

    Last edited by Martin; 29th December 2012 at 10:34.

  2. #2
    Professionals Martin's Avatar
    Join Date
    Sep 2012
    Posts
    540
    Thanks
    1430
    AviationWeek states Chinese J-31 stealth fighter has a longer weapon bay than American F-35

    China's New Stealth Fighter. Not a repeat from December 2010.

    "China's New Stealth Fighter. Not a repeat from December 2010.
    Posted by Bill Sweetman 11:38 AM on Sep 16, 2012

    The US defense secretary is on his way to Beijing. Time to unveil a new stealth fighter...

    Short take-off and vertical landing has been one of the two driving requirements behind the Joint Strike Fighter design, the other being stealth.

    STOVL dictated the single engine, and the STOVL solution chosen for the F-35 demands a big vertical bay behind the cockpit, and a main engine located unusually far forward, to keep the driveshaft length within reason and to put the lift-cruise nozzle in the right longitudinal location for balance.

    This constrains the weapon-bay volume and effectively subdivides the bays into four zones - two AAM bays and two heavy store sections. As Amy Butler reports in Aviation Week this week, too, the weapon bays, wrapped around the engine, get hot.

    If you ever wondered what a JSF might look without those constraints, we now have a live, physical example.

    Unfortunately...



    ..it's Chinese.

    One of the photos of the new Shenyang stealth fighter, apparently designated J-31, that appeared on Chinese defense websites over the weekend is such a colossal gimme that it has to have been deliberate. Direct head-on shot? Check. Commercially available aircraft tug? Check. Extreme telephoto, so that perspective effects are lost in the noise? Check.



    Sheesh, guys, can't you make it a challenge?

    The J-31's wingspan is an F-35-like 37.5 feet, unless my Soviet-watching skills have deserted me. This makes it smaller than the F-22 and considerably smaller than the Chengdu J-20. A good early guess is that the engines are Klimov RD-93s - imported in large numbers for the JF-17 - with a Chinese-built engine to follow.

    Turning to the side view of the jet, it looks as if the engines are installed to the rear of the bulkhead that carries the main landing gears. And with no lift fan bay to worry about, the designers have been able to install long weapon bays on the centerline: what will be interesting is how the inlet ducts are routed to optimize internal space.

    Overall, the most important point is that the J-31 does not look like a competitor for the J-20 - but as a complement to it.

    And if you wonder about the detail similarities of the shape to the F-22 and F-35, remember this quote from 2010:

    In the past year (2009) alone, Lockheed Martin found “six to eight companies” among its subcontractors “had been totally compromised – emails, their networks, everything” according to Lockheed Martin chief information security officer Anne Mullins."

    [Note: You should ignore the last paragraph in the article. It is an unproven allegation. There is no proof that China was involved in any way. It could easily have been a Western hacker, such as another Gary McKinnon.

    Gary McKinnon - Wikipedia, the free encyclopedia

    "McKinnon is accused of hacking into 97 United States military and NASA computers over a 13-month period between February 2001 and March 2002, using the name 'Solo'.[2]

    The US authorities claim he deleted critical files from operating systems, which shut down the US Army’s Military District of Washington network of 2,000 computers for 24 hours. McKinnon also posted a notice on the military's website: 'Your security is crap'."]
    The Following 3 Users Say Thank You to Martin For This Useful Post: Greater China,KingKong,Neo


  3. #3
    Professionals Martin's Avatar
    Join Date
    Sep 2012
    Posts
    540
    Thanks
    1430
    AviationWeek: Chinese J-31/F-60 stealth fighter weapons bay is "at least 5 meters long"

    Photos Of New Chinese Fighter Appear

    "Photos Of New Chinese Fighter Appear
    By Bradley Perrett [email protected], Bill Sweetman [email protected]
    Source: AWIN First


    September 17, 2012

    A second Chinese stealth fighter, apparently from Avic’s Shenyang plant, has appeared in seemingly genuine pictures that cropped up on Chinese web sites Sept. 15.

    The twin-engine, single-seat fighter, shown at an airfield, appears to approximate the Lockheed Martin F-35 in size, with a somewhat shallower body but a similar span of about 11.4 meters (37.5 ft.), as indicated by comparison with a commercial aircraft tug shown pulling it.

    The aircraft features a large ventral weapons bay. Wing sweep looks to be less than 45 deg. on the leading edge, as it was on a wrapped fighter-like object that was hauled by road from Shenyang to Xi’an in June. That trucked object could well have been the now-assembled prototype, three photographs of which have appeared.

    Whenever photographs of new weapons appear on nonofficial web sites in China, the risk of fakery is at least as great as elsewhere. But the publication and sustained appearance of the three shots on the large Chinese web portal Sina somewhat supports their veracity.

    The source of the pictures is unknown; assuming they are real, they are probably official but unacknowledged, intended to let the world know how far China has gone in developing a smaller companion to the so-called J-20 fighter of Chengdu Aircraft, Shenyang’s rival.

    Moreover, the photographs have evidently been staged with the intent of not only revealing the fighter but also letting observers easily measure it and appreciate some of its features. The object hauled on the back of a truck in June was similarly placed next to objects of known size to aid photometric analysis.

    Among the most distinctive features on the prototype are doors for the weapons bay. They were about a third as long as the whole aircraft, meaning that the bay must be at least 5 meters long. Assuming that the Chinese military has deliberately revealed the prototype, it surely opened the doors just as deliberately, to show the location and size of the bay. Similarly, a directly head-on shot conveniently showed trapezoidal intakes much like the F-22’s and the angle of the twin canted fins and lower body, about 25 deg.

    The engines could well be Klimov RD-93s, which have been imported from Russia for the JF-17 export fighter. If so, a Chinese engine would presumably follow. The engines appear to be installed aft of the bulkhead that carries the main landing gear. The exact routing of inlet ducts, a key issue in reducing radar reflections, could not be judged, but a bulge on top of the fuselage shows that they rise well above the wing.

    The location of the prototype was not clear from the photos, but Xi’an, the destination of the trucked object in June, has a flight test center. While China has not officially acknowledged the existence of the Shenyang aircraft, it has been popularly called J-21 or J-31. Shenyang displayed a model of a similar aircraft labeled F-60 last year. The prototype differs at least in having different moveable wing surfaces and in lacking a stinger between the nozzles.

    Simultaneous development of two stealth fighters indicates the allocation of enormous resources by China. But if the country is to continue to catch up to Western fighter technology, it probably cannot afford first to get the J-20 into service and then to move on to a smaller aircraft as a replacement for Chengdu’s J-10. The J-10 began large-scale entry into service in 2006 and is unlikely to be considered fit as a first-rank aircraft in the late 2020s.

    Also, China will want a domestically built fighter for the aircraft carrier it is now testing, as well as any follow-on ships. The J-20 is probably too large for carrier use. On the other hand, views of the truck-hauled object suggested that the Shenyang fighter had only a modestly sized wing; carrier aircraft need relatively large wings. Conceivably, a big-wing carrier version of the new fighter could be built, like the F-35C."
    The Following 3 Users Say Thank You to Martin For This Useful Post: Greater China,KingKong,Neo


  4. #4
    Professionals Martin's Avatar
    Join Date
    Sep 2012
    Posts
    540
    Thanks
    1430
    My J-31/F-60 stealth fighter supercruise theory is better than American experts' opinion

    I said the Chinese J-31/F-60 stealth fighter has twin engines, because supercruise capability was probably part of its design specifications. On the other hand, the single-engine American F-35 was originally designed to be a "bomb truck" and supercruise was never seriously considered.

    The alternative theory (for the twin engines on the J-31/F-60) proposed by American experts is the possible lack of confidence in a single-engine fighter. They raise the usual anti-China propaganda about potential unreliability of Chinese engines.

    It is easy to prove that the American experts are wrong. China's J-10A and J-10B Vigorous Dragon fighters are equipped with only a SINGLE Chinese WS-10A engine. Therefore, if China wanted to follow the F-35 route then it could have easily built a single-engine J-31/F-60.

    However, China intentionally designed a twin-engine J-31/F-60. I think my theory of a supercruise-capable J-31/F-60 is the best explanation. The reason is obvious. China will eventually build thousands of J-31/F-60 stealth fighters with superior performance to defeat supercruise-incapable F-35s. China's strategic goal is to dominate the air against any challenger.

    ----------

    Citation for faulty American expert analysis of J-31/F-60.

    In my view, Andrew Erickson and Gabe Collins show their lack of knowledge regarding single-engine Chinese J-10A and J-10B fighters with a domestic WS-10A engine.

    Double Vision: Making Sense of China's Second 'Stealth' Fighter Prototype - China Real Time Report - WSJ

    "Alternatively, the J-31’s twin-engine design could also reflect design inefficiencies that would increase the net weight as compared to U.S. airframes of similar size or even lack of trust in the reliability of engines currently available. A single-engine design such as the F-35 for naval operations implies an extremely high degree of confidence in engine reliability."

    ----------

    Citations for single-engine Chinese J-10A and J-10B Vigorous Dragon fighters with a domestic WS-10A engine.

    WAFF | World's Armed Forces Forum: PAF JF-17 with standard weapons at Farnborough Air Show, Best!


    Chinese J-10A Vigorous Dragon fighter with single domestic WS-10A engine

    ---

    WS-10A engines are already in mass production (see picture below)


    Could the WS-10A engine power the J-10, J-11B, and J-15 aircraft? The answer is "yes" if two conditions are met. Firstly, Chinese production of WS-10A engines must be sufficient to meet the demand (including production of parts for maintenance and replacement engines at the end of the expected lifetime) for all three aircraft.

    Secondly, I don't know if WS-10A engines are interchangeable with AL-31F engines. If they are not readily interchangeable without modifying the fuselage then the current fighters with AL-31F engines will most likely stay with AL-31F replacement engines.

    J-10B Vigorous Dragon flying with WS-10A engine

    J-11B flying with WS-10A engines

    J-15 Flying Shark with WS-10A engines

    ----------

    WS-10A engine for J-10B Vigorous Dragon fighter in mass production

    WS-10A engine (with gearbox at the bottom) is designed to power the J-10B Vigorous Dragon fighter. This version of the WS-10A turbofan engine is said to have 13.2 ton maximum thrust. There are several wrapped engines near the floor.

    [Note: Thank you to Pinko for the post.]
    The Following 3 Users Say Thank You to Martin For This Useful Post: Greater China,KingKong,Neo


  5. #5
    Professionals Martin's Avatar
    Join Date
    Sep 2012
    Posts
    540
    Thanks
    1430
    Shenyang J-31 stealth fighter prepares for First Flight


    The Shenyang J-31 stealth fighter with quad-tail and integrated DSI design is being fueled in preparation for First Flight.

    [Note: Thank you to Greyboy2 for the picture.]
    The Following 3 Users Say Thank You to Martin For This Useful Post: Greater China,KingKong,Neo

    Last edited by Martin; 30th October 2012 at 03:51.
    Watch my J-15 Flying Shark video with 23,038 views at youtube.com/watch?v=xs1kEwckSto
    "China's J-20 stealth fighter" with 96,510 views at youtube.com/watch?v=1EBztMJBhAs

  6. #6
    Professionals Martin's Avatar
    Join Date
    Sep 2012
    Posts
    540
    Thanks
    1430
    Shenyang J-31 stealth fighter conducts First Flight









    On Oct. 31 at 10:32 AM, China’s second fifth-generation J-31 stealth fighter successfully took off from AVIC SAC (Shenyang Aircraft Corporation) test flight center and completed its trial flight; accompanied by one J-11BS fighter. The test pilot is Li Guoen (李国恩), who is also the test pilot for the SAC J-15 and J-16 fighters.

    The flight duration time was about 10 minutes. At 10:41 AM, the J-31 landed and returned to base. Some senior AVIC officials and PLA Air Force commanders may have observed the test demonstration. Some reports indicate that it only took SAC 19 months to realize the trial flight from aircraft design completion, under competitive pressure from the CAC J-20 stealth fighter.

    [Note: Thank you to "Greater China" for the post.]
    The Following 3 Users Say Thank You to Martin For This Useful Post: Greater China,KingKong,Neo

    Watch my J-15 Flying Shark video with 23,038 views at youtube.com/watch?v=xs1kEwckSto
    "China's J-20 stealth fighter" with 96,510 views at youtube.com/watch?v=1EBztMJBhAs

  7. #7
    Member Greater China's Avatar
    Join Date
    Jul 2012
    Posts
    400
    Thanks
    674
    China China
    J-31 updates







    J-31 concept art / CGI





    The Following 3 Users Say Thank You to Greater China For This Useful Post: KingKong,Martin,Neo


  8. #8
    Professionals Martin's Avatar
    Join Date
    Sep 2012
    Posts
    540
    Thanks
    1430
    Shenyang J-31 quad-tail design is stealthy in seven different ways

    1. The canted vertical stabilizer deflects X-band radar waves (coming in from the side) toward the ground and away from the emitting enemy aircraft. This increases side-aspect stealth.


    The J-31 canted vertical stabilizer deflects incoming side X-band radar waves downward and away from the emitting aircraft.

    2. The large canted vertical stabilizer hides a significant portion of the rear fuselage from enemy radar (coming in from the side).

    3. The horizontal stabilizer secondarily deflects radar waves, which bounced off the canted vertical stabilizer, into the sky and away from both enemy ground sensors and the emitting enemy aircraft.


    The J-31 vertical and horizontal stabilizers work together to deflect incoming side X-band radar waves skyward.

    4. The horizontal stabilizers extend beyond the engine nozzles to provide greater radar and infrared stealth by blocking a direct line-of-sight view from the side.


    Do you see the fifth-generation J-31 rear horizontal stabilizers (e.g. plane on the right) extending beyond the engine nozzles to increase radar and infrared stealth from the side aspect/view? Compare the J-31 to the fourth-generation J-11. Do you see how the J-11 horizontal stabilizers do not extend beyond the engine nozzles and the J-11 is therefore less stealthy?

    5. The horizontal stabilizers obey planform alignment to reduce the number of reflected angles off the wing edges.


    There are approximately seven planform angles on the J-31. Planform alignment is easy to check. You just look for parallel wing edges to reflect radar. To be absolutely sure, you should examine multiple photographs for planform alignment. Planform angles are shown in red pair, orange, green, blue, purple, pink, and brown.

    6. The horizontal stabilizers are located behind the main wing. This increases frontal stealth, because the horizontal stabilizer/control surface does not increase the surface area seen by an enemy radar from the front.


    The J-31 main wings block the rear horizontal stabilizers from the frontal view of an enemy aircraft.

    7. The canted and horizontal stabilizers (e.g. quad-tail design) are coated with RAM (radar absorbent material) to dramatically reduce the J-31 X-band radar return by 99.684% per incoming X-band radar-wave reflection off a J-31 surface. Bouncing off the vertical canted stabilizer counts as one reflection. A secondary bounce off the horizontal stabilizer counts as another reflection.

    ----------

    Citation for RAM reduction:

    Radar-absorbing materials: Definition from Answers.com

    "McGraw-Hill Science & Technology Encyclopedia:
    Radar-absorbing materials

    Materials that are designed to reduce the reflection of electromagnetic radiation from a conducting surface in the frequency range from approximately 100 MHz to 100 GHz. The level of reduction that is achieved varies from a few decibels to greater than 50 dB, reducing the reflected energy by as much as 99.999%.

    Two methods have been widely adopted in order to produce such absorbers. The first is to avoid a discrete change of impedance at the material surface by gradually varying the impedance. The removal of the discontinuity at the surface allows the microwave energy to be transmitted into the absorbing medium without reflection. This transition from the impedance of free space to that of the bulk material is commonly achieved by a geometric profile. The carbon-loaded foam pyramids used as the lining of anechoic chambers are typical of this type of absorber. To produce such absorbers, it is necessary in practice to taper the material over distances which are large compared with the wavelength of the frequencies to be absorbed. Therefore, practical absorbers of this type giving greater than 20 dB absorption vary in thickness from about 0.8 in. (2 cm) at 10 GHz and above to 6 ft (2 m) at 100 MHz and above. The absorber performance improves with increasing thickness until the point is reached where all of the energy that enters the material is absorbed and only the front-face reflection is left. While this type of absorber is capable of producing a very high degree of absorption over a broad bandwidth, it is at the same time a relatively thick material. See also Anechoic chamber.

    The second method of absorber design produces much thinner absorbing layers which are capable of producing good absorption (≥25 dB) with restricted bandwidths. These materials achieve the absorption by a combination of attenuation within the material and destructive interference at the interface. The electromagnetic properties and the thickness of the layer are such that the initial reflected wave and the sum of the emergent rays resulting from the multiple reflections within the material are equal in magnitude and opposite in phase. The thickness of the layer is close to a quarter-wavelength at the frequency of operation, giving a 180° phase difference between the interface reflection and the emergent waves. See also Interference of waves.

    Microwave-absorbing materials are widely used both within the electronics industry and for defense purposes. Their uses can be classified into three major areas: (1) for test purposes so that accurate measurements can be made on microwave equipment unaffected by spurious reflected signals; (2) to improve the performance of any practical microwave system by removing unwanted reflections which can occur if there is any conducting material in the radiation path; and (3) to camouflage a military target by reducing the reflected radar signal. See also Electronic warfare; Microwave; Microwave measurements; Reflection of electromagnetic radiation."
    The Following 3 Users Say Thank You to Martin For This Useful Post: Aryan_B,Greater China,Neo

    Last edited by Martin; 2nd November 2012 at 02:01.
    Watch my J-15 Flying Shark video with 23,038 views at youtube.com/watch?v=xs1kEwckSto
    "China's J-20 stealth fighter" with 96,510 views at youtube.com/watch?v=1EBztMJBhAs

  9. #9
    Administrator Aryan_B's Avatar
    Join Date
    Jun 2012
    Location
    Utopia
    Posts
    14,322
    Thanks
    8763
    Pakistan England
    It's not surprising that China is making great strides in technical innovations as it is producing more engineering graduates than any country in the world
    The Following 4 Users Say Thank You to Aryan_B For This Useful Post: Greater China,Hope,Martin,Neo


  10. #10
    Senior Member Hope's Avatar
    Join Date
    Aug 2012
    Posts
    7,856
    Thanks
    3799
    Pakistan United Arab Emirates
    China flexes military muscle with J-31 stealth jet

    BEIJING: China's second stealth fighter jet that was unveiled this week is part of a programme to transform China into the top regional military power, an expert on Asian security said on Friday.

    The fighter, the J-31, made its maiden flight on Wednesday in the northeast province of Liaoning at a facility of the Shenyang Aircraft Corp which built it, according to Chinese media.

    "This is the second entirely new fighter design that's emerged from China in the last two years, which suggests a pretty impressive level of technical development, and puts them ahead, certainly, of all their regional neighbours," said Sam Roggeveen, a security expert with the Lowy Institute in Sydney.

    The Chinese military "has been extremely deliberate and well funded and persistent, and it's starting to bear fruit", Roggeveen said.

    "What you're now seeing since the early '90s is the slow emergence of a first-class regional military power."

    China's Defence Ministry did not respond to a request for comment.

    China's previous stealth fighter, the J-20, is a heavier aircraft and believed to be less manoeuvrable than the J-31.

    China's military capabilities lag far behind those of the United States, but China is seeking aggressively to boost its strength, including launching its first aircraft carrier - purchased from Ukraine - in September.

    The buildup is a worry for neighbours uneasy about China flexing its military muscle, especially in territorial disputes with Japan in the East China Sea and with Vietnam and the Philippines in the South China Sea.

    "Just like the US F-22 and F-35 fifth-generation fighters, the J-20 and J-31 will complement each other during future operations," Bai Wei, former deputy editor of the weekly Aviation World, told the Global Times newspaper.

    "The J-31 is almost certainly designed with the intention to have the potential of operating on aircraft carriers, judging from its enhanced double-wheel nose landing gear and two big tail wings, which help increase vertical stability," Bai said.

    China needs both the heavier J-20 and more nimble J-31 to defend its air space, Bai said.

    The J-31 is a mid-sized fighter using Russian-made engines which will later be replaced by Chinese engines, the Global Times reported.

    "The big Achilles heel for Chinese aerospace generally, and particularly for both of these two programmes, is engines," Roggeveen, a former analyst for Australian government intelligence and editor of the Lowy Institute's blog LowyInterpreter.org.

    "They still rely very much on foreign technology, and their progress on developing domestic high-performance engines for combat aircraft has been frustrating and slow," he said.

    While the J-31 and J-20 will add to China's offensive as well as defensive capability, "it will take many, many years" for them to enter service with the air force, Roggeveen said.

    China flexes military muscle with J-31 stealth jet - The Times of India
    The Following 2 Users Say Thank You to Hope For This Useful Post: Greater China,Martin


  11. #11
    Member Greater China's Avatar
    Join Date
    Jul 2012
    Posts
    400
    Thanks
    674
    China China
    New images of the J-31/F-60 test flight









    The Following User Says Thank You to Greater China For This Useful Post: Martin


  12. #12
    Member Greater China's Avatar
    Join Date
    Jul 2012
    Posts
    400
    Thanks
    674
    China China


    In this computer-generated picture, Chinese stealth fighters J-31, front, and J-20 fly over a naval fleet with Chinese aircraft carrier, the Liaoning. China tested the new J-31 fighter on Oct. 31. (Imaginechina via AP Images)


    The Following User Says Thank You to Greater China For This Useful Post: Martin


  13. #13
    Professionals Martin's Avatar
    Join Date
    Sep 2012
    Posts
    540
    Thanks
    1430
    Shenyang J-31 stealth fighter is a fusion of J-20, F-22, and F-35 designs


    The Shenyang J-31 shares stealth design elements with the J-20, F-22, and F-35.

    The Shenyang J-31 and the Chengdu J-20 both have a delta-wing design. Admittedly, the J-31 has a somewhat-different clipped delta-wing. Also, the J-31, J-20, and F-35, all share an advanced DSI (diverterless supersonic inlet) integrated into the fuselage as part of the airduct.

    The Shenyang J-31 shares the highly optimized quad-tail design with the F-22 and F-35. The large vertical stabilizers are very prominent on both the J-31 and F-22.

    The Shenyang J-31 and the F-35 both have a stealthy composite-framed cockpit canopy. Also, the planes are about the same size (e.g. 15 to 16 meters long) and weight (e.g. medium-weight fighters). Both stealth fighters lack side-weapon bays and can carry four MRAAMs (medium range air-to-air missiles) in their underside weapon carriage.
    The Following User Says Thank You to Martin For This Useful Post: Greater China

    Watch my J-15 Flying Shark video with 23,038 views at youtube.com/watch?v=xs1kEwckSto
    "China's J-20 stealth fighter" with 96,510 views at youtube.com/watch?v=1EBztMJBhAs

  14. #14
    Senior Moderator Superkaif's Avatar
    Join Date
    Jun 2012
    Location
    Leeds, United Kingdom
    Posts
    14,888
    Thanks
    12096
    UK Pakistan
    Verry impressive show by Chinese. Pakistan looks forward to assaisting China in any manner it can
    The Following 2 Users Say Thank You to Superkaif For This Useful Post: Greater China,Martin


  15. #15
    Elite Member Naveed HRitom's Avatar
    Join Date
    Sep 2012
    Location
    Dhaka
    Posts
    3,704
    Thanks
    1794
    Bangladesh Bangladesh

    Second stealth jet ups China to regional supremacy

    Beijing—China’s second stealth fighter jet that was unveiled this week is part of a program to transform China into the top regional military power, an expert on Asian security said on Friday. The fighter, the J-31, made its maiden flight on Wednesday in the northeast province of Liaoning at a facility of the Shenyang Aircraft Corp which built it, according to Chinese media.

    “This is the second entirely new fighter design that’s emerged from China in the last two years, which suggests a pretty impressive level of technical development, and puts them ahead, certainly, of all their regional neighbors,” said Sam Roggeveen, a security expert with the Lowy Institute in Sydney. The Chinese military “has been extremely deliberate and well funded and persistent, and it’s starting to bear fruit”, Roggeveen said.

    “What you’re now seeing since the early ‘90s is the slow emergence of a first-class regional military power.” China’s Defence Ministry did not respond to a request for comment. China’s previous stealth fighter, the J-20, is a heavier aircraft and believed to be less manoeuvrable than the J-31.

    China’s military capabilities lag far behind those of the United States, but China is seeking aggressively to boost its strength, including launching its first aircraft carrier - purchased from Ukraine - in September. The buildup is a worry for neighbors uneasy about China flexing its military muscle, especially in territorial disputes with Japan in the East China Sea and with Vietnam and the Philippines in the South China Sea.

    “Just like the U.S. F-22 and F-35 fifth-generation fighters, the J-20 and J-31 will complement each other during future operations,” Bai Wei, former deputy editor of the weekly Aviation World, told the Global Times newspaper. “The J-31 is almost certainly designed with the intention to have the potential of operating on aircraft carriers, judging from its enhanced double-wheel nose landing gear and two big tail wings, which help increase vertical stability,” Bai said.

    China needs both the heavier J-20 and more nimble J-31 to defend its air space, Bai said. The J-31 is a mid-sized fighter using Russian-made engines which will later be replaced by Chinese engines, the Global Times reported.

    “The big Achilles heel for Chinese aerospace generally, and particularly for both of these two programs, is engines,” Roggeveen, a former analyst for Australian government intelligence and editor of the Lowy Institute’s blog LowyInterpreter.org. “They still rely very much on foreign technology, and their progress on developing domestic high-performance engines for combat aircraft has been frustrating and slow,” he said.

    While the J-31 and J-20 will add to China’s offensive as well as defensive capability, “it will take many, many years” for them to enter service with the air force, Roggeveen said.—Reuters
    The Following 2 Users Say Thank You to Naveed HRitom For This Useful Post: Greater China,Martin

    Fear Is No Policy Surrender Is No Option

  16. #16
    Administrator Aryan_B's Avatar
    Join Date
    Jun 2012
    Location
    Utopia
    Posts
    14,322
    Thanks
    8763
    Pakistan England
    Certainly Chinese are making great advances
    The Following 3 Users Say Thank You to Aryan_B For This Useful Post: Greater China,Martin,Naveed HRitom


  17. #17
    Member Greater China's Avatar
    Join Date
    Jul 2012
    Posts
    400
    Thanks
    674
    China China

    New Stealth Fighter Hot Among Military Fans

    By Zhao Lei and Wang Huazhong

    Chinese military fans are excited by the news that the country's second stealth fighter prototype has made its maiden flight. Meanwhile, experts and observers considered the possibility that the aircraft might be deployed on an aircraft carrier.

    Thousands of military enthusiasts were online on Wednesday morning, hoping to "witness" the first test flight of the J-31, which had conducted two high-speed taxiing tests on Tuesday morning and was expected to take off on Wednesday.

    Without an official code name, the prototype bears the provisional designation J-31 and has "31001" painted on both sides under its cockpit.

    An unknown number of enthusiasts on Wednesday morning were stationed outside an airfield of the Shenyang Aircraft Corp, which belongs to the Aviation Industry Corp of China and is a major designer and manufacturer for the Chinese air force. The witnesses published almost all details of the test flight after it began at 10:32 am.

    Photos that showed the J-31 in flight and accompanied by two J-11BS fighters were posted on major Chinese military forums.

    "It is amazing! Now China has become the second nation, after the United States, to simultaneously develop two fifth-generation fighters," a netizen using the name wenwutuan said on cjdby.net, one of China's biggest military websites.

    "Today is absolutely a historic day," said another Internet user, dzz2002. "Though we still have a long way to go before calling China a strong aviation power, we can proudly say that we have made great strides in achieving this goal."

    According to the accounts of military enthusiasts who claimed to witness the test and their photos, the radar-evading aircraft conducted a 10-minute flight with its landing gear in the lowered position.

    Zhai Dequan, deputy secretary-general of the China Arms Control and Disarmament Association, said he had not expected that J-31 would make the debut so soon after the maiden flight of the J-20 in January 2011.

    The J-20 is a fifth-generation twin-engine stealth fighter aircraft prototype developed by Chengdu Aircraft Industry Group. Since its first flight, at least two prototypes have carried out several test flights.

    Zhai said the J-31 will pair up with the J-20 in combat and possibly serve on aircraft carriers.

    He said the J-31 can match the US' F-35 Lightning II in future performance and may boast better avionics. But the real concern is the quality of its engine.

    "We hope engines made in China can be used on the fighter jet soon," Zhai said.

    China has relied heavily on imported engines for its domestically developed aircraft, experts said.

    Zhai said the revelation of the J-31 shows that China will work hard on "active defense".

    "The People's Liberation Army will have greater command of the air at coastal and offshore regions with the service of J-31," he said.

    The J-31 has three traits that make it suitable for service on aircraft carrier: its medium size, its reliability and multiple functions, according to Du Wenlong, a senior researcher at the Academy of Military Science of the PLA.

    Xu Yongling, a former test pilot and military aviation expert, told People's Daily on Thursday that China has a limited number of potential choices for fighters that can be deployed on its aircraft carriers.

    Judging from the landing gear and its comparatively superior mobility compared with the J-20, it is possible that the J-31 is designed to be launched from an aircraft carrier, military expert Andrei Chang told Agence France-Presse.

    However, a time-consuming testing process means the aircraft is unlikely to enter active service for nearly a decade.

    "It will take at least seven or eight years before it can be sold commercially," Chang said.

    The J-31 could possibly be exported in the future, Xu said, suggesting some foreign countries may turn to China for its advanced fighters.

    China Daily
    The Following 2 Users Say Thank You to Greater China For This Useful Post: Martin,Naveed HRitom


  18. #18
    Elite Member Naveed HRitom's Avatar
    Join Date
    Sep 2012
    Location
    Dhaka
    Posts
    3,704
    Thanks
    1794
    Bangladesh Bangladesh
    china advances day by day. best of luck china
    The Following User Says Thank You to Naveed HRitom For This Useful Post: Martin

    Fear Is No Policy Surrender Is No Option

  19. #19
    Administrator Aryan_B's Avatar
    Join Date
    Jun 2012
    Location
    Utopia
    Posts
    14,322
    Thanks
    8763
    Pakistan England
    Quote Originally Posted by Naveed HRitom View Post
    china advances day by day. best of luck china
    And is friendly to all her neighbours and we wish her well
    The Following 4 Users Say Thank You to Aryan_B For This Useful Post: Greater China,Martin,Naveed HRitom,Syeed Tanveer Khan


  20. #20
    Member Syeed Tanveer Khan's Avatar
    Join Date
    Nov 2012
    Posts
    49
    Thanks
    32
    Pakistan Pakistan
    for their this nature they become blessed.so all the best to our gr8est frnd " CHINA THE GREAT"
    The Following 2 Users Say Thank You to Syeed Tanveer Khan For This Useful Post: Greater China,Martin


Page 1 of 3 123 LastLast

Similar Threads

  1. China’s ‘Stealth Attack’ on the F-35
    By Express in forum China Affairs
    Replies: 2
    Last Post: 27th September 2012, 20:34
  2. Shenyang Military Region holds actual combat drills
    By Greater China in forum China Affairs
    Replies: 0
    Last Post: 15th September 2012, 00:50
  3. So, why is China developing a J-16 Fighter-bomber?
    By Greater China in forum China Affairs
    Replies: 0
    Last Post: 16th July 2012, 04:53
  4. China Soon to Become World’s Top Fighter Exporter
    By Superkaif in forum China Affairs
    Replies: 2
    Last Post: 12th July 2012, 17:52
  5. N FOCUS: China awaits fighter export breakthrough
    By Aryan_B in forum Pakistan Air Force
    Replies: 1
    Last Post: 4th July 2012, 21:25

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Join us on twitter Follow us on twitter