Sukhoi PAK FA
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Sukhoi T-50 Shows Flight-Control Innovations | idrw.org
Source: Aviation Week & Space Technology
A highlight of the MAKS air show, which opens at Zhukovsky Airport near Moscow next week, is likely to be the demonstration of the Sukhoi T-50 PAK FA (Perspektivny Aviatsionny Kompleks Frontovoy Aviatsii—Future Tactical Air System) fighter.
The T-50 appeared at MAKS two years ago, but is now flying with updated control laws that expand its flight envelope. (The program had flown fewer than 100 test sorties between its January 2010 maiden flight and its MAKS debut.) Recent videos show the aircraft performing what appear to be sustained-altitude flat rotation maneuvers and high-angle-of-attack turns similar to those demonstrated at the Paris air show by the Su-35S. Four T-50 prototypes have now flown and a fifth is expected to fly by the end of the year. The first state acceptance trials are due to start in 2014, United Aircraft Corporation President Mikhail Pogosyan said earlier this year, and production should start in 2015.
Russian President Vladimir Putin has said that production aircraft will enter service in 2016. However, since the aircraft has yet to fly with its definitive engine, this most likely indicates that the Russian air force is reverting to Soviet-era practice by equipping an operational test unit with interim-standard aircraft while development of the objective system is completed.
Many details of the fighter's equipment and armament remain classified or unpublished. However, in recent months the Sukhoi design bureau has obtained several patents relating to the T-50, including the rationale behind the stealth fighter's configuration.
One Sukhoi patent opens by outlining a reference design similar to the Lockheed Martin F-22, but notes perceived shortcomings and areas where the Russian designers, starting a decade later after work on the Su-27 and its descendants, tried to do better. The F-22"²s thrust-vector control (TVC) system cannot provide roll or yaw control because the engines are too close together. The engine installation leaves no place for weapon bays in the same plane as the engines—they have to be installed around and below the inlet ducts. The serpentine inlet ducts add length and weight. Post-stall recovery is problematic if TVC fails, and the fixed fins and rudders are large.
The T-50 is a blended wing-body design, resembling the Su-27 in one key respect: the core of the structure is the "centroplane," a long-chord, deep-section inner wing to which the rest of the airframe components—the forward fuselage and widely separated engine nacelles, wings and tail surfaces—are attached. Compared to the Su-27, however, the centroplane is deeper between the engines, to accommodate weapon bays.
The flight control system has 14 effectors—12 moving flight control surfaces and the engine nozzles. The wing leading-edge flaps are used symmetrically to maintain lift at high angles of attack and adjust the wing profile to the Mach number. The ailerons are used only at low speed and takeoff and landing, when the flaperons are used to increase lift. At higher speeds, roll control comes from the flaperons and horizontal tails.
The all-moving vertical tails sit on short fixed pylons that contain the actuators, and air intakes for engine compartment cooling and heat exchangers. One purpose of the pylons is to make room for a longer bearing arm for the vertical tail pivot, between the top of the pylon and the lower surface of the blended wing. This reduces loads and allows the bearings and structure to be lighter. At supersonic speeds, the T-50 is directionally unstable and uses active control via the vertical tails. That is why the all-moving surfaces can be much smaller than the F-22"²s fixed fins and movable rudders. The vertical tails replace the airbrake, moving symmetrically to increase drag with minimal pitch moment.
The large and unique moving leading edges on the centroplane help optimize the lift generated by that section in cruising flight, but their most important function is to recover the aircraft in the event of a TVC failure at post-stall angles of attack. They do this by deflecting sharply downward, reducing the plan-projected area of the wing-body section in front of the center of gravity.
The engines are widely separated, to make room for weapon bays and provide roll and yaw vector control. The engine centerlines are splayed outward to reduce effects of asymmetric thrust with one engine inoperative, placing the thrust vector of the good engine closer to the center of mass of the aircraft.
As on the TVC-equipped versions of the Su-27/30/35 family, the individual engine nozzles vector only in one plane, but the vector axes are rotated outward. Consequently, symmetrical movement of the nozzles creates a pitch force (each nozzle creates an equal and opposite yaw moment) and asymmetrical movement creates both roll and yaw moments. If yaw only is required (for example, in the Su-35"²s "bell" maneuver, a high-alpha deceleration followed by a 180-deg. change of direction) the roll moment can be counteracted by flaperons and ailerons.
The T-50"²s inlets are a compromise design. They are serpentine but the curvature is insufficient to obscure the entire engine face (as on the F-22, F-35 and Eurofighter Typhoon), so they also feature a radial blocker similar in principal to that used on the Boeing F/A-18E/F Super Hornet. Unlike the F-22 inlets, however, they feature a variable throat section and spill doors on the inboard, outboard and lower surfaces of the ducts. The result is a complex multiple-shock pattern at supersonic speed, which the Russians consider essential for efficient operation at Mach 2. The inlets also feature clamshell-like mesh screens and diverter slots to keep foreign objects out of the engine, as used on the Su-27 family.
The main challenge in the structural design was to provide space for tandem weapon bays running the entire length of the center section. This ruled out the structural concept used on the Lockheed Martin F-35 and F-22, which have multiple full-depth bulkheads carrying the wing loads, because this forces all the weapon bays to be ahead of the wing. The centerline structure on the T-50 has to be quite shallow, so that designing it to resist peak wing bending loads will be a very difficult challenge. The solution on the T-50 is to design the "centroplane" section as a stiff, integrated structure with two sets of full-depth longitudinal booms, located at the outer edges of the nacelles and at the wing-to-centroplane junction. These are connected by multiple (the patent drawing shows eight) spanwise spars that also carry the wing attachment fittings. The result is a structure that spreads the bending loads over the centroplane and reduces the peak loads at the centerline.
It is believed that the target maximum speed of the T-50 is around Mach 2. The goal was originally Mach 2.35, but this was reduced to Mach 2.1 and then to the current figure, compared to Mach 2.25 for the Su-35S. The main reason for the difference is that the T-50 uses more composite materials in its primary structure than the Su-35S, which makes heavy use of titanium.
The T-50 aircraft flying today are equipped with the izdeliye (Type) 117 engine, described by its designer in a 2011 interview as being more advanced than the 117S used on the Su-35S. The 117S appears to be an evolution of the AL-31 engine series with some technology from the 117. The 117 is claimed to have a thrust/weight ratio of 10:1.
However, Saturn Managing Director Ilya Fyodorov confirmed at a press conference last month that the company is designing a follow-on engine (referred to by the 117 designer as izdeliye 30) for the T-50, which is expected to offer higher performance than the 117 from 2020 onward.
More details of the fighter's weapons may be revealed at MAKS, but it appears that the T-50 is designed to carry variants of in-service missiles initially. Tactical Missiles Corporation General Director Boris Obnosov identified several T-50 weapons in an interview early in 2012, including the existing Kh-35UE anti-ship missile, Kh-38ME air-to-surface weapon and the RVV-MD, an improved version of the R-73E short-range air-to-air missile with an enlarged seeker field of view and a claimed 30% range increase. A significant development is the new Kh-58UShKE, a long-range (up to 245 km), Mach 4-capable anti-radar missile originally produced for the MiG-25BM Foxbat-E, fitted with folding wings for internal carriage.
However, Obnosov identified these specifically as being weapons at service entry, which he projected in 2014. There is still no definitive information about the T-50"²s internal weapons capability, but it seems likely that there are four separate weapon bays. Two bays outboard of the inlets each accommodate a single RVV-MD. Tandem bays between the engines each hold two missiles, but it is likely that the forward bay is deeper to house weapons such as the Kh-58UShKE, with the aft bay dedicated to air-to-air missiles in the R-77 family.
Source: Aviation Week & Space Technology
A highlight of the MAKS air show, which opens at Zhukovsky Airport near Moscow next week, is likely to be the demonstration of the Sukhoi T-50 PAK FA (Perspektivny Aviatsionny Kompleks Frontovoy Aviatsii—Future Tactical Air System) fighter.
The T-50 appeared at MAKS two years ago, but is now flying with updated control laws that expand its flight envelope. (The program had flown fewer than 100 test sorties between its January 2010 maiden flight and its MAKS debut.) Recent videos show the aircraft performing what appear to be sustained-altitude flat rotation maneuvers and high-angle-of-attack turns similar to those demonstrated at the Paris air show by the Su-35S. Four T-50 prototypes have now flown and a fifth is expected to fly by the end of the year. The first state acceptance trials are due to start in 2014, United Aircraft Corporation President Mikhail Pogosyan said earlier this year, and production should start in 2015.
Russian President Vladimir Putin has said that production aircraft will enter service in 2016. However, since the aircraft has yet to fly with its definitive engine, this most likely indicates that the Russian air force is reverting to Soviet-era practice by equipping an operational test unit with interim-standard aircraft while development of the objective system is completed.
Many details of the fighter's equipment and armament remain classified or unpublished. However, in recent months the Sukhoi design bureau has obtained several patents relating to the T-50, including the rationale behind the stealth fighter's configuration.
One Sukhoi patent opens by outlining a reference design similar to the Lockheed Martin F-22, but notes perceived shortcomings and areas where the Russian designers, starting a decade later after work on the Su-27 and its descendants, tried to do better. The F-22"²s thrust-vector control (TVC) system cannot provide roll or yaw control because the engines are too close together. The engine installation leaves no place for weapon bays in the same plane as the engines—they have to be installed around and below the inlet ducts. The serpentine inlet ducts add length and weight. Post-stall recovery is problematic if TVC fails, and the fixed fins and rudders are large.
The T-50 is a blended wing-body design, resembling the Su-27 in one key respect: the core of the structure is the "centroplane," a long-chord, deep-section inner wing to which the rest of the airframe components—the forward fuselage and widely separated engine nacelles, wings and tail surfaces—are attached. Compared to the Su-27, however, the centroplane is deeper between the engines, to accommodate weapon bays.
The flight control system has 14 effectors—12 moving flight control surfaces and the engine nozzles. The wing leading-edge flaps are used symmetrically to maintain lift at high angles of attack and adjust the wing profile to the Mach number. The ailerons are used only at low speed and takeoff and landing, when the flaperons are used to increase lift. At higher speeds, roll control comes from the flaperons and horizontal tails.
The all-moving vertical tails sit on short fixed pylons that contain the actuators, and air intakes for engine compartment cooling and heat exchangers. One purpose of the pylons is to make room for a longer bearing arm for the vertical tail pivot, between the top of the pylon and the lower surface of the blended wing. This reduces loads and allows the bearings and structure to be lighter. At supersonic speeds, the T-50 is directionally unstable and uses active control via the vertical tails. That is why the all-moving surfaces can be much smaller than the F-22"²s fixed fins and movable rudders. The vertical tails replace the airbrake, moving symmetrically to increase drag with minimal pitch moment.
The large and unique moving leading edges on the centroplane help optimize the lift generated by that section in cruising flight, but their most important function is to recover the aircraft in the event of a TVC failure at post-stall angles of attack. They do this by deflecting sharply downward, reducing the plan-projected area of the wing-body section in front of the center of gravity.
The engines are widely separated, to make room for weapon bays and provide roll and yaw vector control. The engine centerlines are splayed outward to reduce effects of asymmetric thrust with one engine inoperative, placing the thrust vector of the good engine closer to the center of mass of the aircraft.
As on the TVC-equipped versions of the Su-27/30/35 family, the individual engine nozzles vector only in one plane, but the vector axes are rotated outward. Consequently, symmetrical movement of the nozzles creates a pitch force (each nozzle creates an equal and opposite yaw moment) and asymmetrical movement creates both roll and yaw moments. If yaw only is required (for example, in the Su-35"²s "bell" maneuver, a high-alpha deceleration followed by a 180-deg. change of direction) the roll moment can be counteracted by flaperons and ailerons.
The T-50"²s inlets are a compromise design. They are serpentine but the curvature is insufficient to obscure the entire engine face (as on the F-22, F-35 and Eurofighter Typhoon), so they also feature a radial blocker similar in principal to that used on the Boeing F/A-18E/F Super Hornet. Unlike the F-22 inlets, however, they feature a variable throat section and spill doors on the inboard, outboard and lower surfaces of the ducts. The result is a complex multiple-shock pattern at supersonic speed, which the Russians consider essential for efficient operation at Mach 2. The inlets also feature clamshell-like mesh screens and diverter slots to keep foreign objects out of the engine, as used on the Su-27 family.
The main challenge in the structural design was to provide space for tandem weapon bays running the entire length of the center section. This ruled out the structural concept used on the Lockheed Martin F-35 and F-22, which have multiple full-depth bulkheads carrying the wing loads, because this forces all the weapon bays to be ahead of the wing. The centerline structure on the T-50 has to be quite shallow, so that designing it to resist peak wing bending loads will be a very difficult challenge. The solution on the T-50 is to design the "centroplane" section as a stiff, integrated structure with two sets of full-depth longitudinal booms, located at the outer edges of the nacelles and at the wing-to-centroplane junction. These are connected by multiple (the patent drawing shows eight) spanwise spars that also carry the wing attachment fittings. The result is a structure that spreads the bending loads over the centroplane and reduces the peak loads at the centerline.
It is believed that the target maximum speed of the T-50 is around Mach 2. The goal was originally Mach 2.35, but this was reduced to Mach 2.1 and then to the current figure, compared to Mach 2.25 for the Su-35S. The main reason for the difference is that the T-50 uses more composite materials in its primary structure than the Su-35S, which makes heavy use of titanium.
The T-50 aircraft flying today are equipped with the izdeliye (Type) 117 engine, described by its designer in a 2011 interview as being more advanced than the 117S used on the Su-35S. The 117S appears to be an evolution of the AL-31 engine series with some technology from the 117. The 117 is claimed to have a thrust/weight ratio of 10:1.
However, Saturn Managing Director Ilya Fyodorov confirmed at a press conference last month that the company is designing a follow-on engine (referred to by the 117 designer as izdeliye 30) for the T-50, which is expected to offer higher performance than the 117 from 2020 onward.
More details of the fighter's weapons may be revealed at MAKS, but it appears that the T-50 is designed to carry variants of in-service missiles initially. Tactical Missiles Corporation General Director Boris Obnosov identified several T-50 weapons in an interview early in 2012, including the existing Kh-35UE anti-ship missile, Kh-38ME air-to-surface weapon and the RVV-MD, an improved version of the R-73E short-range air-to-air missile with an enlarged seeker field of view and a claimed 30% range increase. A significant development is the new Kh-58UShKE, a long-range (up to 245 km), Mach 4-capable anti-radar missile originally produced for the MiG-25BM Foxbat-E, fitted with folding wings for internal carriage.
However, Obnosov identified these specifically as being weapons at service entry, which he projected in 2014. There is still no definitive information about the T-50"²s internal weapons capability, but it seems likely that there are four separate weapon bays. Two bays outboard of the inlets each accommodate a single RVV-MD. Tandem bays between the engines each hold two missiles, but it is likely that the forward bay is deeper to house weapons such as the Kh-58UShKE, with the aft bay dedicated to air-to-air missiles in the R-77 family.
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Russia showcasing new Sukhoi fighters at Moscow air show | idrw.org
SOURCE: UPI
Russia is highlighting some of its most advanced fighter aircraft at Moscow's MAKS-2013 air show. After energy, armaments remain the Russian Federation's most popular exports.
The fifth-generation jet combat aircraft on display and performing aerial acrobatics include the Sukhoi T-50 PAKFA and Sukhoi Su-35S multirole fighter jets.
The MAKS-2013 air show opens Tuesday in the Moscow regional town of Zhukovsky, the Russian news agency RIA Novosti reported Thursday.
The Sukhoi Su-35S is a Russian heavy class, long-range, multi-role one-seat fighter, developed from the original Su-27 air superiority fighter. The Russian air force has taken delivery of 48 Su-35s. Visitors to the Paris Air Show in June were treated to a display of the Su-35S's impressive aerobatics, including a demonstration of the extraordinary Pugachev's Cobra maneuver. Sukhoi claims the aircraft can "successfully counter" full-fledged fifth-generation U.S. jet fighters, Lockheed Martin's F-35 Lightning II and F-22 Raptor.
The Su-35S has a maximum speed of 1,500 mph, similar to the F-22 Raptor and has an operational range of 1,940 nautical miles at high altitude. The Su-35S is also equipped with an infra-red search and track system that could conceivably be used to detect stealth aircraft within a reported range of roughly 50 miles.
The first T-50 flew in January 2010. The T-50"²s design incorporates advanced sensors, including an Active Electronically Scanned Array radar, a hallmark of modern stealth jets. While the T-50 isn't quite as stealthy as the United States' F-22 Raptor, which became operational in 2005, against which it's designed to compete, Russian engineers aeronautical reportedly decided to trade stealth for superior maneuverability over the F-22. Sukhoi plans to offer an export version of the T-50 for sale around the world as a competitor to the U.S.-made F-35 Joint Strike Fighter, the only other stealth jet that is currently being marketed worldwide. Sukhoi is also collaborating with India's Hindustan Aeronautics Ltd. to develop a twin-seat version of the T-50 for the Indian air force that would enter production around 2020.
The potential market for the T-50 is substantial. The Russian air force's frontal aviation units have a requirement for 250-300 fifth-generation tactical fighters, while the Indian air force is looking for 200-250 similar aircraft. Speaking to journalists in June 2010, the Russian Federation's then-Prime Minister Vladimir Putin said roughly $1.3 billion had been spent on developing the T-50. Putin added that "a similar amount" was to be added to the project, which would result in a front-line aircraft costing half to two-thirds less than Washington paid for its F-22 Raptors.
Other Russian cutting edge aeronautical designs on display at the MAKS-2013 air show include Russian Helicopters presenting its new medium multi-role Mi-171A2 helicopter. The Mi-171A2, one of the most eagerly anticipated new models of Russia's aviation industry, incorporates the latest technologies, building upon on the many years of operational experience of its Mi-8/17 series of helicopters. Russian Helicopters intends to complete certification of the Mi-171A2 to the flight worthiness standards of the Aviation Register of the Interstate Aviation Committee next year, with customer deliveries scheduled to begin in 2015.
Read more: Russia's Sukhoi T-50, Su-35S highlighted at MAKS-2013 air show - UPI.com
SOURCE: UPI
Russia is highlighting some of its most advanced fighter aircraft at Moscow's MAKS-2013 air show. After energy, armaments remain the Russian Federation's most popular exports.
The fifth-generation jet combat aircraft on display and performing aerial acrobatics include the Sukhoi T-50 PAKFA and Sukhoi Su-35S multirole fighter jets.
The MAKS-2013 air show opens Tuesday in the Moscow regional town of Zhukovsky, the Russian news agency RIA Novosti reported Thursday.
The Sukhoi Su-35S is a Russian heavy class, long-range, multi-role one-seat fighter, developed from the original Su-27 air superiority fighter. The Russian air force has taken delivery of 48 Su-35s. Visitors to the Paris Air Show in June were treated to a display of the Su-35S's impressive aerobatics, including a demonstration of the extraordinary Pugachev's Cobra maneuver. Sukhoi claims the aircraft can "successfully counter" full-fledged fifth-generation U.S. jet fighters, Lockheed Martin's F-35 Lightning II and F-22 Raptor.
The Su-35S has a maximum speed of 1,500 mph, similar to the F-22 Raptor and has an operational range of 1,940 nautical miles at high altitude. The Su-35S is also equipped with an infra-red search and track system that could conceivably be used to detect stealth aircraft within a reported range of roughly 50 miles.
The first T-50 flew in January 2010. The T-50"²s design incorporates advanced sensors, including an Active Electronically Scanned Array radar, a hallmark of modern stealth jets. While the T-50 isn't quite as stealthy as the United States' F-22 Raptor, which became operational in 2005, against which it's designed to compete, Russian engineers aeronautical reportedly decided to trade stealth for superior maneuverability over the F-22. Sukhoi plans to offer an export version of the T-50 for sale around the world as a competitor to the U.S.-made F-35 Joint Strike Fighter, the only other stealth jet that is currently being marketed worldwide. Sukhoi is also collaborating with India's Hindustan Aeronautics Ltd. to develop a twin-seat version of the T-50 for the Indian air force that would enter production around 2020.
The potential market for the T-50 is substantial. The Russian air force's frontal aviation units have a requirement for 250-300 fifth-generation tactical fighters, while the Indian air force is looking for 200-250 similar aircraft. Speaking to journalists in June 2010, the Russian Federation's then-Prime Minister Vladimir Putin said roughly $1.3 billion had been spent on developing the T-50. Putin added that "a similar amount" was to be added to the project, which would result in a front-line aircraft costing half to two-thirds less than Washington paid for its F-22 Raptors.
Other Russian cutting edge aeronautical designs on display at the MAKS-2013 air show include Russian Helicopters presenting its new medium multi-role Mi-171A2 helicopter. The Mi-171A2, one of the most eagerly anticipated new models of Russia's aviation industry, incorporates the latest technologies, building upon on the many years of operational experience of its Mi-8/17 series of helicopters. Russian Helicopters intends to complete certification of the Mi-171A2 to the flight worthiness standards of the Aviation Register of the Interstate Aviation Committee next year, with customer deliveries scheduled to begin in 2015.
Read more: Russia's Sukhoi T-50, Su-35S highlighted at MAKS-2013 air show - UPI.com
gadeshi
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A new misiles for PAK FA and AD systems on MAKS-2013:
Ракеты "Вымпела" летÑÑ‚ точно в цель - ВПК.name
Ракеты "Вымпела" летÑÑ‚ точно в цель - ВПК.name
Twinblade
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Aircraft p0®n 
It is from the background of Sukhoi Stall at MAKS. It gives a fair idea of the depth of the weapons bay considering that one Kh-58 with folding wings would fit in there. Considering 10 cm clearance on top and bottom and the launch rail included, the bay must be at least 60 to 80 cm deep and in all probability as wide as almost a meter.
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Pak-Fa aka T-50 Weapons Update | idrw.org
SOURCE: Bill Sweetman FOR aviationweek.com
The T-50 display at MAKS is tamer than some people hoped. Despite the statements of political and industry leaders, I suspect that the fighter won't be in service for some years, except possibly in the form of a small test squadron, because what the Russian industry has set out to do is difficult by any standard.
Some of the clues to the fighter's development here also suggest that the T-50 will not constitute the entire fighter force for a long time, if ever. The Tactical Missiles Corporation exhibit booth points to two things: a robust weapons development program for the conventional Su-35S, and a "kick the door down" mission for the stealth fighter.
Absent here is any sign of all-new weapons for the T-50, which instead looks likely to enter service with refined versions of existing systems. Interestingly, the closest that the T-50 (so far) is confirmed to be getting to an all-new weapon is a highly modified version of an existing anti-radar missile, the folding-wing Kh-58UShE.
The Kh-58UShE is very different from earlier versions. It is slightly shorter and has inertial mid-course guidance, and has a broadband seeker where earlier Kh-58s were fitted with different seekers for different targets.
The next likely candidate for the T-50"²s forward bay is the RVV-BD (air-to-air missile, long range), which is a modernized version of the Vympel R-37 that was designed for the MiG-31M Foxhound-B, but never put into production. Unlike the R-37, it is designed to be carried other than semi-conformal and videos and documents here show it carried by the Su-35S. However, its total external dimensions are within centimeters of the Kh-58UShE. It seems likely, therefore, that the T-50 forward bay has been designed around the minimum-risk RVV-BD, with the Kh-58 being modified to fit the same envelope.
This is all interesting to say the least, because since Day One of stealth in the US a guiding principle has been that stealth gets you close enough to use precise, short-range, low-cost weapons. And here come the Russians, equipping their first stealth fighter — already fast and high-flying — with a 1,400-pound ARM that can run out to 245 km at up to Mach 4, and an 1,125-pound, 200-kilometer range AAM.
Debate over the new weapon's intended relationship to the T-50 was settled by the video on the TMC stand:
SOURCE: Bill Sweetman FOR aviationweek.com
The T-50 display at MAKS is tamer than some people hoped. Despite the statements of political and industry leaders, I suspect that the fighter won't be in service for some years, except possibly in the form of a small test squadron, because what the Russian industry has set out to do is difficult by any standard.
Some of the clues to the fighter's development here also suggest that the T-50 will not constitute the entire fighter force for a long time, if ever. The Tactical Missiles Corporation exhibit booth points to two things: a robust weapons development program for the conventional Su-35S, and a "kick the door down" mission for the stealth fighter.
Absent here is any sign of all-new weapons for the T-50, which instead looks likely to enter service with refined versions of existing systems. Interestingly, the closest that the T-50 (so far) is confirmed to be getting to an all-new weapon is a highly modified version of an existing anti-radar missile, the folding-wing Kh-58UShE.
The Kh-58UShE is very different from earlier versions. It is slightly shorter and has inertial mid-course guidance, and has a broadband seeker where earlier Kh-58s were fitted with different seekers for different targets.
The next likely candidate for the T-50"²s forward bay is the RVV-BD (air-to-air missile, long range), which is a modernized version of the Vympel R-37 that was designed for the MiG-31M Foxhound-B, but never put into production. Unlike the R-37, it is designed to be carried other than semi-conformal and videos and documents here show it carried by the Su-35S. However, its total external dimensions are within centimeters of the Kh-58UShE. It seems likely, therefore, that the T-50 forward bay has been designed around the minimum-risk RVV-BD, with the Kh-58 being modified to fit the same envelope.
This is all interesting to say the least, because since Day One of stealth in the US a guiding principle has been that stealth gets you close enough to use precise, short-range, low-cost weapons. And here come the Russians, equipping their first stealth fighter — already fast and high-flying — with a 1,400-pound ARM that can run out to 245 km at up to Mach 4, and an 1,125-pound, 200-kilometer range AAM.
Debate over the new weapon's intended relationship to the T-50 was settled by the video on the TMC stand:
dealwithit
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India to customise Russia's FGFA planes
Source Hindu
The Indian version of an Indo-Russian fifth-generation fighter plane is going to be lighter weight, more powerful and less visible to enemy radars that the original Russian version, according to a senior executive at Hindustan Aeronautics Limited.
Under a joint project with Russia to build a fifth-generation fighter aircraft (FGFA) India will modify and customise the prototype Russia has developed independently.
"While the Russian version of the FGFA is all-metal, ours will have wings and empennage (vertical and horizontal stabilisers) made of composite materials," said S. Subrahmanyan, Managing Director of MiG Complex at HAL.
"The use of composites will reduce the plane's weight and give it lower signature. Our version will also have more advanced Indian-made avionics," Mr. Subrahmanyan told The Hindu at the Moscow Air Show-2013. He is leading a HAL delegation to the biannual air show being held this year from August 27 to September 1.
"Thanks to these improvements we will get a better and more powerful platform," Mr. Subrahmanyan said.
The FGFA is going to be India's biggest and most ambitious defence project and the largest joint venture with Russia. Earlier this year the two sides completed the preliminary design of the FGFA and are now negotiating a detailed design contract. Mr. Subrahmanyan said he hopes the contract could be signed before the end of the current year.
Four Russian prototypes of the fifth-generation fighter, codenamed T-50 or PAK-FA, have performed more than 200 test flights since January 2010. The Russian Air Force plans to begin inducting the plane in 2015.
HAL is to get three Russian prototypes for re-design and testing in 2015, 2016 and 2017, and will hand over the first series produced aircraft to the IAF in 2019, Mr. Subrahmanyan said.
The FGFA project will take the Indian expertise in aviation technologies to a much higher level.
"We've moved from license production and technology transfer to co-design and co-development," Mr. Subrahmanyan said. He pointed out that India supplies avionics for Su-30 Russia is building for Malaysia and Indonesia.
"Co-design offers far greater scope for knowledge sharing compared with license production. In co-design projects all Intellectual Property Rights (IPR) are jointly held by parties involved," Mr. Subrahmanyan added.
India is currently working on two co-design defence projects with Russia – the FGFA and the Multi-role Transport Aircraft, which is already in detailed design stage.
With the West, India has so far had only one co-design project – the Advanced Light Helicopter Dhruv, developed with assistance from Germany's MBB.
Keywords: Indo-Russian defence ties, fifth-generation fighter aircraft, FGFA, Hindustan Aeronautics, HAL, MiG Complex, Moscow Air Show-2013
Source Hindu
The Indian version of an Indo-Russian fifth-generation fighter plane is going to be lighter weight, more powerful and less visible to enemy radars that the original Russian version, according to a senior executive at Hindustan Aeronautics Limited.
Under a joint project with Russia to build a fifth-generation fighter aircraft (FGFA) India will modify and customise the prototype Russia has developed independently.
"While the Russian version of the FGFA is all-metal, ours will have wings and empennage (vertical and horizontal stabilisers) made of composite materials," said S. Subrahmanyan, Managing Director of MiG Complex at HAL.
"The use of composites will reduce the plane's weight and give it lower signature. Our version will also have more advanced Indian-made avionics," Mr. Subrahmanyan told The Hindu at the Moscow Air Show-2013. He is leading a HAL delegation to the biannual air show being held this year from August 27 to September 1.
"Thanks to these improvements we will get a better and more powerful platform," Mr. Subrahmanyan said.
The FGFA is going to be India's biggest and most ambitious defence project and the largest joint venture with Russia. Earlier this year the two sides completed the preliminary design of the FGFA and are now negotiating a detailed design contract. Mr. Subrahmanyan said he hopes the contract could be signed before the end of the current year.
Four Russian prototypes of the fifth-generation fighter, codenamed T-50 or PAK-FA, have performed more than 200 test flights since January 2010. The Russian Air Force plans to begin inducting the plane in 2015.
HAL is to get three Russian prototypes for re-design and testing in 2015, 2016 and 2017, and will hand over the first series produced aircraft to the IAF in 2019, Mr. Subrahmanyan said.
The FGFA project will take the Indian expertise in aviation technologies to a much higher level.
"We've moved from license production and technology transfer to co-design and co-development," Mr. Subrahmanyan said. He pointed out that India supplies avionics for Su-30 Russia is building for Malaysia and Indonesia.
"Co-design offers far greater scope for knowledge sharing compared with license production. In co-design projects all Intellectual Property Rights (IPR) are jointly held by parties involved," Mr. Subrahmanyan added.
India is currently working on two co-design defence projects with Russia – the FGFA and the Multi-role Transport Aircraft, which is already in detailed design stage.
With the West, India has so far had only one co-design project – the Advanced Light Helicopter Dhruv, developed with assistance from Germany's MBB.
Keywords: Indo-Russian defence ties, fifth-generation fighter aircraft, FGFA, Hindustan Aeronautics, HAL, MiG Complex, Moscow Air Show-2013
gadeshi
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This is propagandistic bullshit for short-minded tiers of Indian society.
PAK FA is FULL METAL?????? WTF???
1 - Where Indians will get more powerful engines (Indians cannot design and produce them - cripple Kaveri is not the point and different class)?
2 - Even If they'll get ones (from US?), how will they want to fit them to T-50 airframe and systems (especially when they have no knowledge and experience for that)?
3 - Indian have no experience, knowledge and technologies to produce incorporatable RAMs (WTF is less observable???).
4 - Indians doesn't participate or of course "co-design" anything in PAK FA because they have no knowledge, experiance and competence for this.
All the other shit isn't worth even reading.
All the Indians will "customize" in PAK FA are mission computers and cockpit displays. Also Israeli navigation and ECM suits are possible, nothing more.
This is propagandistic bullshit for short-minded tiers of Indian society.
PAK FA is FULL METAL?????? WTF???
1 - Where Indians will get more powerful engines (Indians cannot design and produce them - cripple Kaveri is not the point and different class)?
2 - Even If they'll get ones (from US?), how will they want to fit them to T-50 airframe and systems (especially when they have no knowledge and experience for that)?
3 - Indian have no experience, knowledge and technologies to produce incorporatable RAMs (WTF is less observable???).
4 - Indians doesn't participate or of course "co-design" anything in PAK FA because they have no knowledge, experiance and competence for this.
All the other shit isn't worth even reading.
All the Indians will "customize" in PAK FA are mission computers and cockpit displays. Also Israeli navigation and ECM suits are possible, nothing more.
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dealwithit
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I think you have to read carefully
He may mean "that less observable means RCS"
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gadeshi
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2 - Don't you think, Russians have made ALL the parts possible already of composites, and the other parts MUST be metal to hold the construction togather? What parts do you want to be composite more of those they are on T-50-6 and 7?
1 - How do you suppose make something of composites to withstand aerial loads conquerable only for titanium (vertical fins, if they are titanium-made)?
2 - Don't you think, Russians have made ALL the parts possible already of composites, and the other parts MUST be metal to hold the construction togather? What parts do you want to be composite more of those they are on T-50-6 and 7?
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dealwithit
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gadeshi
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No offence, but Indian aircraft and materials industry and scientific/engineering school is too young for this.
This article says that "we will make PAK FA even better then Russians who created it".
This is rediculous in many reasons.
You should redesign, recalculate and repeatedly test almost all the aircraft body to substitute some valuable, really working parts with composite ones. How can you do this being impossible to complete your much-much simplier Tejas jet?
If you can do this better, why order it from anybody?
That's my point.
No offence, but Indian aircraft and materials industry and scientific/engineering school is too young for this.
This article says that "we will make PAK FA even better then Russians who created it".
This is rediculous in many reasons.
You should redesign, recalculate and repeatedly test almost all the aircraft body to substitute some valuable, really working parts with composite ones. How can you do this being impossible to complete your much-much simplier Tejas jet?
If you can do this better, why order it from anybody?
That's my point.
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