JF-17/FC-1 Fighter Aircraft thread
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coolieno99
Junior Member
Re: New JF-17/FC-1 thread
This is the Google translated version:
"Fierce Dragon" aircraft from AVIC Group Ⅰ joint venture with the Pakistan Air Force, a flight from Chengdu Aircraft Design and Research Institute. Chengdu Aircraft Industrial Group, and other independent research. The aircraft, "said the source," is convinced that splintered from the F-Inhibition MIG-21, forming at Super-7 FTC-1 final stereotyped as "Fierce Dragon" (Pakistan named JF-17 "Thunder and Lightning" / "sabers II"). It can be said that through subsequent re-design Today, the FTC-1 "Xiaolong" fighter is the beginning of a new F-7 fighter a completely different. Now, with the "Fierce Dragon" 04 fighter successful maiden flight. Many media of the "Fierce Dragon" fighter-depth coverage of the relevant circumstances. But many readers are interested, "practical problems" in the rare shows, such as : Why is this test flight of the "Fierce Dragon" on the 4th. 01--03 how the plane? "Fierce Dragon" 04 fighter whether "new" where he and the former "Fierce Dragon" than any particular areas? "Fierce Dragon" fighter cost is how much money it can bring to China and Pakistan, huge foreign exchange earnings? And the American and French planes on the international market, they have enough competitive edge? Equipment of the "Fierce Dragon" fighter of the Pakistan Air Force Air India to be offset by the technical superiority Mody ... these questions. We can see from the article below corresponding analysis. FTC-1 "Xiaolong" fighter has "brothers" from the No. 01--04. Data show that early in 1992, the China Aviation Import and Export Corporation. and the CAC 61 1 person in charge have been secretly held in Beijing to accept the "secret instructions" Later, it evolved to this task, we can see the "Fierce Dragon" fighter. According to official statistics, one after another in 2003, the maiden flight of Xiaolong 01,03 F 2004 platform is a state, focused on the development of the body, mainly used for test flights and flight safety. Fierce Dragon on the 2nd and it has not produced planes from God, it was used as a "static test" Paddy lying quietly in Chengdu, the Chengdu Aircraft factory workshops Huang. For FTC-1 "Xiaolong" fighter's brothers development process : official documents such records in 1998. China and Pakistan signed an agreement in principle to develop Super7 aircraft. 1999, jointly developed by China and Pakistan signed a contract Super7 aircraft hull. 2001. China Aviation Industry Corporation clear Super 01 F-7 aircraft navigation system "to simplify programming." first aircraft development platform. In September 2001, freeze "Fierce Dragon" 301 / 303 F-technological status and detailed design. In October 2002, "Xiaolong" fighter made to complete the detailed design plans, set up eight test began relevant test. In August 2003, "Fierce Dragon" 01 flight of the prototype, made a successful maiden flight. April 2004, "Fierce Dragon," the success of the maiden flight of the prototype F-03. In June 2004, and Pakistan signed the "Fierce Dragon" fighter aircraft -- the entire state of development and technology transfer contracts. In July 2004, the Super-7 aircraft was officially re-named the "Fierce Dragon Fly" aircraft, Pakistan called "JF-17 Lightning fighter." In January 2005, "Fierce Dragon" F-04 fighters to complete the detailed design of structural development plan. March the same year to complete the detailed design of system development plans. November 2005, "Xiaolong" fighter planes entered the General 04. In early April 2006, "Xiaolong" fighter aircraft -- complete research and delivery systems installed. April 28, 2006, the entire state of the "Fierce Dragon" 04 fighter planes made a successful maiden flight. "Fierce Dragon whole state planes compared with 01,03 and 04 aircraft has two main highlights : First, the sophisticated 'shell' inlet design, Second, the allocation of the entire state of the advanced navigation system. "Chengdu Aircraft Design Institute Zhu Qianzhi, deputy chief designer of the F-04 flying Xiaolong said after the plane made a successful maiden flight on the 28th. The so-called 'shell' inlet, also known at no Inlet Road, in front of the inlet of a drum machine was designed. replacing the traditional drum at Road and regulation board system through the Bulge to enter the pre-compressed air inlet. and blown-off boundary layer. "Clam" in the field of pneumatic air inlet design is a more advanced technology to improve the performance of aircraft platforms. has high practical value. "We carried out simultaneously with the basic study of this technology. At present, only the United States F-35 joint strike aircraft and aircraft Xiaolong 04 has been applied. "Qian Zhu said. Xiaolong also allocated 04 planes equipped with the most advanced highly integrated avionics and weapons systems. distribution of "a three-level" cockpit display equipment Syndicated news show control system to replace all the backup instruments, a good man-machine interface to the combat pilots to provide more information, convenient operation. Qian Zhu said : "Space technology is a comprehensive international design a new, the success of the maiden flight of Xiaolong 04 planes. Integrated Avionics System marks significant progress has been made in the development. achieved by the introduction of this technology leap to exports. "> detailed" Pakistan Air Force has ordered 150 JF 17. Several of them, including a number of coaches and tactics for the use of seat, twin engine modifications. This joint production of the JF-17 150 China will be our PAC and the Chengdu Aircraft Company completed. As an integral part of this long-term contracts. the establishment of a joint sales and marketing team is also logical things natural. contain a lot of high-tech JF-17 Pakistan Air Force will bring a revolution, Pakistan will greatly enhance their ability to develop and produce high-performance aircraft. JF-17 production output of the first one - China delivered six F : 8. 8 planes delivered to Pakistan. June 2006-China and Pakistan for the delivery of the first four JF-17 will have Chengdu Aircraft Company, the second installment of the eight will be delivered in the last quarter of 2006. Four planes delivered to China's production still Chengdu Aircraft Corporation contract. Pakistan and four in the PAC it needs to complete assembly. "" will certainly have to wait until the production of JF-17 Series completed its prototype weapons and avionics integration accredited after stereotypes. Therefore, the first batch of eight fighters will be on the whole The multi-functional task fighter. However, -- JF-17 aircraft in the integration of other options for radar equipment and the work continued, Customer requirements are based mainly on the choice and use it in the end, to decide which country produced radar and avionics equipment. "-- Bucky Air Force Major General Shahid Emil Constantinescu. Ladifu (JF-17 "Lightning" aircraft development project manager) detailed from J> F-17 major players in the development program. China's aviation equipment import and export trade for the China Aviation Technology Import and Export Corporation (abbreviated as : CNAC technology) Spokesman Department learned : CNAC technology with the Russian leadership on this matter has been responsible for the communication equipment sector exports. Russia expressed RD-93 engine of China's exports, there is no problem. The engines from China for re-export to other countries, so long as they do not contravene the relevant provisions of the United Nations, there is no problem. The reporters also call for the Chengdu Aircraft Industrial Corporation, manufacture JF-17. Cheng Fei, deputy director of the Propaganda Department, Zhou said : "At present, 'Fierce Dragon' Development of the prototype has been tested and maintained relatively good posture. No. 4 flight of the prototype manufacturing ongoing China. The aircraft's maiden flight over the next 01 and the first flight on the 3rd more Remember, But the maiden flight of the time could not disclose specific. "It may reduce the Pakistan Air Force 'Fierce Dragon' procurement said, Zhou said, "This is entirely inconsistent with the facts. 'Fierce Dragon' development is on schedule and proceeding normally. Currently, 'Fierce Dragon' in the international market has been attracting more and more attention. "Later, Xinhua Ageha Zahir air attache at the Pakistani embassy in China (custody) Air Force Colonel, He said details about what happens on these two issues, to identify the next day after calling reporters, and will give a reply. Two days later, calling the press Zahir Colonel, Colonel specifically stated : "JF-17 development program unchanged. Pakistan Air Force plans to purchase JF-17 unchanged. "> detailed
This is the Google translated version:
"Fierce Dragon" aircraft from AVIC Group Ⅰ joint venture with the Pakistan Air Force, a flight from Chengdu Aircraft Design and Research Institute. Chengdu Aircraft Industrial Group, and other independent research. The aircraft, "said the source," is convinced that splintered from the F-Inhibition MIG-21, forming at Super-7 FTC-1 final stereotyped as "Fierce Dragon" (Pakistan named JF-17 "Thunder and Lightning" / "sabers II"). It can be said that through subsequent re-design Today, the FTC-1 "Xiaolong" fighter is the beginning of a new F-7 fighter a completely different. Now, with the "Fierce Dragon" 04 fighter successful maiden flight. Many media of the "Fierce Dragon" fighter-depth coverage of the relevant circumstances. But many readers are interested, "practical problems" in the rare shows, such as : Why is this test flight of the "Fierce Dragon" on the 4th. 01--03 how the plane? "Fierce Dragon" 04 fighter whether "new" where he and the former "Fierce Dragon" than any particular areas? "Fierce Dragon" fighter cost is how much money it can bring to China and Pakistan, huge foreign exchange earnings? And the American and French planes on the international market, they have enough competitive edge? Equipment of the "Fierce Dragon" fighter of the Pakistan Air Force Air India to be offset by the technical superiority Mody ... these questions. We can see from the article below corresponding analysis. FTC-1 "Xiaolong" fighter has "brothers" from the No. 01--04. Data show that early in 1992, the China Aviation Import and Export Corporation. and the CAC 61 1 person in charge have been secretly held in Beijing to accept the "secret instructions" Later, it evolved to this task, we can see the "Fierce Dragon" fighter. According to official statistics, one after another in 2003, the maiden flight of Xiaolong 01,03 F 2004 platform is a state, focused on the development of the body, mainly used for test flights and flight safety. Fierce Dragon on the 2nd and it has not produced planes from God, it was used as a "static test" Paddy lying quietly in Chengdu, the Chengdu Aircraft factory workshops Huang. For FTC-1 "Xiaolong" fighter's brothers development process : official documents such records in 1998. China and Pakistan signed an agreement in principle to develop Super7 aircraft. 1999, jointly developed by China and Pakistan signed a contract Super7 aircraft hull. 2001. China Aviation Industry Corporation clear Super 01 F-7 aircraft navigation system "to simplify programming." first aircraft development platform. In September 2001, freeze "Fierce Dragon" 301 / 303 F-technological status and detailed design. In October 2002, "Xiaolong" fighter made to complete the detailed design plans, set up eight test began relevant test. In August 2003, "Fierce Dragon" 01 flight of the prototype, made a successful maiden flight. April 2004, "Fierce Dragon," the success of the maiden flight of the prototype F-03. In June 2004, and Pakistan signed the "Fierce Dragon" fighter aircraft -- the entire state of development and technology transfer contracts. In July 2004, the Super-7 aircraft was officially re-named the "Fierce Dragon Fly" aircraft, Pakistan called "JF-17 Lightning fighter." In January 2005, "Fierce Dragon" F-04 fighters to complete the detailed design of structural development plan. March the same year to complete the detailed design of system development plans. November 2005, "Xiaolong" fighter planes entered the General 04. In early April 2006, "Xiaolong" fighter aircraft -- complete research and delivery systems installed. April 28, 2006, the entire state of the "Fierce Dragon" 04 fighter planes made a successful maiden flight. "Fierce Dragon whole state planes compared with 01,03 and 04 aircraft has two main highlights : First, the sophisticated 'shell' inlet design, Second, the allocation of the entire state of the advanced navigation system. "Chengdu Aircraft Design Institute Zhu Qianzhi, deputy chief designer of the F-04 flying Xiaolong said after the plane made a successful maiden flight on the 28th. The so-called 'shell' inlet, also known at no Inlet Road, in front of the inlet of a drum machine was designed. replacing the traditional drum at Road and regulation board system through the Bulge to enter the pre-compressed air inlet. and blown-off boundary layer. "Clam" in the field of pneumatic air inlet design is a more advanced technology to improve the performance of aircraft platforms. has high practical value. "We carried out simultaneously with the basic study of this technology. At present, only the United States F-35 joint strike aircraft and aircraft Xiaolong 04 has been applied. "Qian Zhu said. Xiaolong also allocated 04 planes equipped with the most advanced highly integrated avionics and weapons systems. distribution of "a three-level" cockpit display equipment Syndicated news show control system to replace all the backup instruments, a good man-machine interface to the combat pilots to provide more information, convenient operation. Qian Zhu said : "Space technology is a comprehensive international design a new, the success of the maiden flight of Xiaolong 04 planes. Integrated Avionics System marks significant progress has been made in the development. achieved by the introduction of this technology leap to exports. "> detailed" Pakistan Air Force has ordered 150 JF 17. Several of them, including a number of coaches and tactics for the use of seat, twin engine modifications. This joint production of the JF-17 150 China will be our PAC and the Chengdu Aircraft Company completed. As an integral part of this long-term contracts. the establishment of a joint sales and marketing team is also logical things natural. contain a lot of high-tech JF-17 Pakistan Air Force will bring a revolution, Pakistan will greatly enhance their ability to develop and produce high-performance aircraft. JF-17 production output of the first one - China delivered six F : 8. 8 planes delivered to Pakistan. June 2006-China and Pakistan for the delivery of the first four JF-17 will have Chengdu Aircraft Company, the second installment of the eight will be delivered in the last quarter of 2006. Four planes delivered to China's production still Chengdu Aircraft Corporation contract. Pakistan and four in the PAC it needs to complete assembly. "" will certainly have to wait until the production of JF-17 Series completed its prototype weapons and avionics integration accredited after stereotypes. Therefore, the first batch of eight fighters will be on the whole The multi-functional task fighter. However, -- JF-17 aircraft in the integration of other options for radar equipment and the work continued, Customer requirements are based mainly on the choice and use it in the end, to decide which country produced radar and avionics equipment. "-- Bucky Air Force Major General Shahid Emil Constantinescu. Ladifu (JF-17 "Lightning" aircraft development project manager) detailed from J> F-17 major players in the development program. China's aviation equipment import and export trade for the China Aviation Technology Import and Export Corporation (abbreviated as : CNAC technology) Spokesman Department learned : CNAC technology with the Russian leadership on this matter has been responsible for the communication equipment sector exports. Russia expressed RD-93 engine of China's exports, there is no problem. The engines from China for re-export to other countries, so long as they do not contravene the relevant provisions of the United Nations, there is no problem. The reporters also call for the Chengdu Aircraft Industrial Corporation, manufacture JF-17. Cheng Fei, deputy director of the Propaganda Department, Zhou said : "At present, 'Fierce Dragon' Development of the prototype has been tested and maintained relatively good posture. No. 4 flight of the prototype manufacturing ongoing China. The aircraft's maiden flight over the next 01 and the first flight on the 3rd more Remember, But the maiden flight of the time could not disclose specific. "It may reduce the Pakistan Air Force 'Fierce Dragon' procurement said, Zhou said, "This is entirely inconsistent with the facts. 'Fierce Dragon' development is on schedule and proceeding normally. Currently, 'Fierce Dragon' in the international market has been attracting more and more attention. "Later, Xinhua Ageha Zahir air attache at the Pakistani embassy in China (custody) Air Force Colonel, He said details about what happens on these two issues, to identify the next day after calling reporters, and will give a reply. Two days later, calling the press Zahir Colonel, Colonel specifically stated : "JF-17 development program unchanged. Pakistan Air Force plans to purchase JF-17 unchanged. "> detailed
maozedong
Banned Idiot
Re: New JF-17/FC-1 thread
pakistan air force edited one advertising video for JF-17 FC-1 fighter recently.
it is intresting.
this is the video click:
editor:some error in edition, it shows double post at this thread, please delete one,thanks!
pakistan air force edited one advertising video for JF-17 FC-1 fighter recently.
it is intresting.
this is the video click:
editor:some error in edition, it shows double post at this thread, please delete one,thanks!
Last edited:
Re: New JF-17/FC-1 thread
Just found this picture on a Chinese website which says it's a new stealth verson of FC-1. To me it seems more like a PSed photo. But I must say FC-1 can be eaily converted without too many changes. Coz the only differece I can see is pure cosmatic (from wing forward).
Just found this picture on a Chinese website which says it's a new stealth verson of FC-1. To me it seems more like a PSed photo. But I must say FC-1 can be eaily converted without too many changes. Coz the only differece I can see is pure cosmatic (from wing forward).
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Re: New JF-17/FC-1 thread
Interestingly enough, I found a really informative article on JF-17 and PAF on Kanwa, a little summary is as follows:
# Chinese AEW and Erieye will both be procured, PAF regards Erieye as AEW&C and Chinese AEW as AWACS, may point to Chinese one having more functionality.
# JF-17 is not enough to fulfill the requirements of PAF, that's why PAF is also negotiating with China to get J-10, which will be designated as FC-20. However, PAF is not going to restrict itself to just one source, so it may still buy more F-16s.
# JF-17s will definitely be in Pakistan prior to March 23rd.
# The radar is a competition bw lab 14 and 607 right now, although European radar may get into the competition in the future.
# As I predicted, the first 8 JF-17s, which are to be delivered by the end of this year, will all be using lab 607 radar.
# PAF is still evaluating the weapons package, not restricting themselves to just Chinese ones
# RD-93 engine is definitely not an issue contrary to Internet reports
# Pakistan will start JF-17 production in 2008
# 150 is just the first order of JF-17, there will be more orders from Pakistan.
I'm trying to get the entire translation, all the scanned photos of that article and more on my blog at
Interestingly enough, I found a really informative article on JF-17 and PAF on Kanwa, a little summary is as follows:
# Chinese AEW and Erieye will both be procured, PAF regards Erieye as AEW&C and Chinese AEW as AWACS, may point to Chinese one having more functionality.
# JF-17 is not enough to fulfill the requirements of PAF, that's why PAF is also negotiating with China to get J-10, which will be designated as FC-20. However, PAF is not going to restrict itself to just one source, so it may still buy more F-16s.
# JF-17s will definitely be in Pakistan prior to March 23rd.
# The radar is a competition bw lab 14 and 607 right now, although European radar may get into the competition in the future.
# As I predicted, the first 8 JF-17s, which are to be delivered by the end of this year, will all be using lab 607 radar.
# PAF is still evaluating the weapons package, not restricting themselves to just Chinese ones
# RD-93 engine is definitely not an issue contrary to Internet reports
# Pakistan will start JF-17 production in 2008
# 150 is just the first order of JF-17, there will be more orders from Pakistan.
I'm trying to get the entire translation, all the scanned photos of that article and more on my blog at
Re: New JF-17/FC-1 thread
That will be interesting to see the radar offered on the export JF-17s. This has repercussions in the future for export J-10s. And it may have further repercussions along the road on future PLAAF contracts themselves. I personally don't mind (actually I kind of like to see) lab 607 get their radars on the J-10. Grey nosed J-10s, no?
That will be interesting to see the radar offered on the export JF-17s. This has repercussions in the future for export J-10s. And it may have further repercussions along the road on future PLAAF contracts themselves. I personally don't mind (actually I kind of like to see) lab 607 get their radars on the J-10. Grey nosed J-10s, no?
maglomanic
Junior Member
Re: New JF-17/FC-1 thread
I'm pretty sure that is just a summary that somebody did on what he read online regarding JF-17. You can pretty much find most of what he wrote in previous articles. As for his assessment that JF-17 is equivalent to F-16 C/D, that's all it is. His assessment and nothing else. As I mentionned, they are still conducting radar testing on JF-17, I'd like to know more about the capability of the radar and the rest of the avionics first.
Re: New JF-17/FC-1 thread
Its quite some dense reading, at least the author tries to make some effort on it. Feng pretty much said it all, much of the stuff appears gleamed online, then given analysis and summary. IMO, the first part of the article seems a more interesting before he drifted to the range, radar, avionics and engine issues. Here is a google translation on his comments on the aerodynamics. Its a long analysis though to explain the obvious, the expanded LERX allows the plane to maneuver at higher angles of attack. Also he is correct in the observation that the LERX and the DSI adds to the negative stability of the plane (will make the plane pitch up automatically requiring an FBW needed to keep the nose down in oscillating movement). The LERX will move the center of lift forward, while the weigh reductions in the front as a result of the DSI implementation will move the center of gravity backward. Hence this also improves the plane's maneuverbility.
According to the information obtained by the author, with surfers and explore! 1. 1 configuration. side of Xiaolong 04 and 16 similar to the configuration, Medium used pneumatic normal aspect ratio wing edge of the layout, highlighted the strong performance of low-altitude and high-subsonic mobility. But in the details, the two were different, Xiaolong 04 : First, the edge of the area and more than 01 planes. also much higher than the F-16. Aircraft wings are designed to improve the edge of the lift-to-drag ratio under a certain angle of attack, improving the performance of the aircraft at high angles of attack. But using such a large edge design of the aircraft is not, it is estimated that only a F-18E/F. Trouble from the edge of the 5.2 m 2 to 7 m 2, increased by 34%. It will not only raise the maximum lift coefficient aircraft, taking off and landing capabilities. also greatly enhanced the mobility of the aircraft at high angles of attack. extremely powerful vortex edge of the wing airflow postpone the occurrence and development. F-18E/F excellent performance at high angles of attack apparently inseparable from its side of the wing design. Meanwhile, behind the Xiaolong 04 / end up greatly, bow torque at high angles of attack can provide. Xiaolong 04 while increasing the use of its high angle of attack expected to further enhance mobility! But more important role is that of Xiaolong 04 will be significantly increased while the focus of aerodynamic brought forward. We know that while the focus of the aircraft is located, Lift edge of the vortex caused by the contribution of the wing while washing aerodynamic flow will significantly toward the center. Therefore side of the aircraft configuration is usually static longitudinal instability, active control technology needed to be addressed. For example, the F-16 is a typical "relaxed static stability" with the conventional design : layout, F-16 wings moved forward by 40.6 centimeters, so aerodynamic center forward. M0.9 at its static stability in slightly negative, and 8% at M1.2. Aerodynamic focus toward growing cause of the border, Xiaolong 04 will be the focus might change (after I speculated that it might be a slight shift : DSI weight because the more obvious the former fuselage, Yields rear edge of the electronic module will be partially offset by the increased weight and nose). Aerodynamic focus light Xiaolong 04, the focus changes I guess Xiaolong 04 earlier in the static stability will be further relaxed. And the use of "the entire longitudinal flight control authority fax + 40 degrees more than two simulated redundancy backup" system will be fully satisfy the static stability After the relaxation of control! Xiaolong 04 relaxed static stability will not only further enhance their mobility, More importantly, will be greatly reduced in the span of supersonic trim resistance and help span performance of the supersonic, DSI combination of the weight and the weight of the whole growth pushed down, The greatest number may be more than 04 M M1.6 the biggest increase in the original design! Of course, increasing the edge of the edge of the vortex induced intensity can also lead to larger aircraft pitch moment of non-linear problems, Early mechanical-hydraulic control system's apparent inability to solve, but a good example of Xiaolong 04 flight control solution! 2. Details from the wing of the main wings, Xiaolong 04 and F-16 are different, Xiaolong 04 wing leading-edge sweep angle of 42 °, composite wing bending and torsion, and the latter leading edge sweep angle of 40 °. Aspect ratio of about 3.0, both front and rear wing. F-16 wing no reverse! Contrast can see that Xiaolong 04 of the wing leading edge sweep angle greater aspect ratio smaller than the root shoot, Airfoil closer delta, in a large range of airfoil stall characteristics, and inter-and supersonic flight resistance small! Is likely to be absorbing the essence of the Russian type pneumatic three generations! Even more noteworthy is that Xiaolong 04 in a front flap with the same strain J-10 on the basis of bending and torsion using a composite wing design No composite wing bending and torsion and 16. Why? Design, I believe that this may be related to Xiaolong 04 delta is closer to the airfoil, delta is the biggest drawback of induced resistance, easy airflow vortex formation, loss of front lift. With the front flap and using composite reversed, can improve the overall speed of the largest lift-to-drag ratio. India's LCA has a similar design, I see in inspection data on the Indian side in the LCA had explained his comments : He said the purpose of this design is used to improve the characteristics of wing lift, as he thought the wing dihedral angles of attack. first stall at high angles of attack, time pressure center moves, bow torque produced, and yet Winglet stall. Therefore horizontal control. That the design can be used to enhance the lateral stability of aircraft at high angles of attack. As we all know, single Yields Yields larger aircraft to fly at high angles of attack is the reason, Yields will be shielded fuselage turbulence lose lateral stability, thereby restricting the mobility single Yields aircraft at high angles of attack. If the speculation is true, then the combined side of the design Xiaolong 04 will increase their ability to fly at high angles of attack. able to its excellent maneuverability at high angles of attack! Gen will bring slightly smaller than Winglet flutter, usually cut with a sharp or heavy objects to be resolved Xiaolong Winglet whose every missile in flight test of time with this estimate, and the increase in the electronic module Yields dropped after a sharp cut. While it can be resolved flutter, but feel a bit uncomfortable in the number of visual!
Its quite some dense reading, at least the author tries to make some effort on it. Feng pretty much said it all, much of the stuff appears gleamed online, then given analysis and summary. IMO, the first part of the article seems a more interesting before he drifted to the range, radar, avionics and engine issues. Here is a google translation on his comments on the aerodynamics. Its a long analysis though to explain the obvious, the expanded LERX allows the plane to maneuver at higher angles of attack. Also he is correct in the observation that the LERX and the DSI adds to the negative stability of the plane (will make the plane pitch up automatically requiring an FBW needed to keep the nose down in oscillating movement). The LERX will move the center of lift forward, while the weigh reductions in the front as a result of the DSI implementation will move the center of gravity backward. Hence this also improves the plane's maneuverbility.
According to the information obtained by the author, with surfers and explore! 1. 1 configuration. side of Xiaolong 04 and 16 similar to the configuration, Medium used pneumatic normal aspect ratio wing edge of the layout, highlighted the strong performance of low-altitude and high-subsonic mobility. But in the details, the two were different, Xiaolong 04 : First, the edge of the area and more than 01 planes. also much higher than the F-16. Aircraft wings are designed to improve the edge of the lift-to-drag ratio under a certain angle of attack, improving the performance of the aircraft at high angles of attack. But using such a large edge design of the aircraft is not, it is estimated that only a F-18E/F. Trouble from the edge of the 5.2 m 2 to 7 m 2, increased by 34%. It will not only raise the maximum lift coefficient aircraft, taking off and landing capabilities. also greatly enhanced the mobility of the aircraft at high angles of attack. extremely powerful vortex edge of the wing airflow postpone the occurrence and development. F-18E/F excellent performance at high angles of attack apparently inseparable from its side of the wing design. Meanwhile, behind the Xiaolong 04 / end up greatly, bow torque at high angles of attack can provide. Xiaolong 04 while increasing the use of its high angle of attack expected to further enhance mobility! But more important role is that of Xiaolong 04 will be significantly increased while the focus of aerodynamic brought forward. We know that while the focus of the aircraft is located, Lift edge of the vortex caused by the contribution of the wing while washing aerodynamic flow will significantly toward the center. Therefore side of the aircraft configuration is usually static longitudinal instability, active control technology needed to be addressed. For example, the F-16 is a typical "relaxed static stability" with the conventional design : layout, F-16 wings moved forward by 40.6 centimeters, so aerodynamic center forward. M0.9 at its static stability in slightly negative, and 8% at M1.2. Aerodynamic focus toward growing cause of the border, Xiaolong 04 will be the focus might change (after I speculated that it might be a slight shift : DSI weight because the more obvious the former fuselage, Yields rear edge of the electronic module will be partially offset by the increased weight and nose). Aerodynamic focus light Xiaolong 04, the focus changes I guess Xiaolong 04 earlier in the static stability will be further relaxed. And the use of "the entire longitudinal flight control authority fax + 40 degrees more than two simulated redundancy backup" system will be fully satisfy the static stability After the relaxation of control! Xiaolong 04 relaxed static stability will not only further enhance their mobility, More importantly, will be greatly reduced in the span of supersonic trim resistance and help span performance of the supersonic, DSI combination of the weight and the weight of the whole growth pushed down, The greatest number may be more than 04 M M1.6 the biggest increase in the original design! Of course, increasing the edge of the edge of the vortex induced intensity can also lead to larger aircraft pitch moment of non-linear problems, Early mechanical-hydraulic control system's apparent inability to solve, but a good example of Xiaolong 04 flight control solution! 2. Details from the wing of the main wings, Xiaolong 04 and F-16 are different, Xiaolong 04 wing leading-edge sweep angle of 42 °, composite wing bending and torsion, and the latter leading edge sweep angle of 40 °. Aspect ratio of about 3.0, both front and rear wing. F-16 wing no reverse! Contrast can see that Xiaolong 04 of the wing leading edge sweep angle greater aspect ratio smaller than the root shoot, Airfoil closer delta, in a large range of airfoil stall characteristics, and inter-and supersonic flight resistance small! Is likely to be absorbing the essence of the Russian type pneumatic three generations! Even more noteworthy is that Xiaolong 04 in a front flap with the same strain J-10 on the basis of bending and torsion using a composite wing design No composite wing bending and torsion and 16. Why? Design, I believe that this may be related to Xiaolong 04 delta is closer to the airfoil, delta is the biggest drawback of induced resistance, easy airflow vortex formation, loss of front lift. With the front flap and using composite reversed, can improve the overall speed of the largest lift-to-drag ratio. India's LCA has a similar design, I see in inspection data on the Indian side in the LCA had explained his comments : He said the purpose of this design is used to improve the characteristics of wing lift, as he thought the wing dihedral angles of attack. first stall at high angles of attack, time pressure center moves, bow torque produced, and yet Winglet stall. Therefore horizontal control. That the design can be used to enhance the lateral stability of aircraft at high angles of attack. As we all know, single Yields Yields larger aircraft to fly at high angles of attack is the reason, Yields will be shielded fuselage turbulence lose lateral stability, thereby restricting the mobility single Yields aircraft at high angles of attack. If the speculation is true, then the combined side of the design Xiaolong 04 will increase their ability to fly at high angles of attack. able to its excellent maneuverability at high angles of attack! Gen will bring slightly smaller than Winglet flutter, usually cut with a sharp or heavy objects to be resolved Xiaolong Winglet whose every missile in flight test of time with this estimate, and the increase in the electronic module Yields dropped after a sharp cut. While it can be resolved flutter, but feel a bit uncomfortable in the number of visual!
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