Russian Su-57 Aircraft Thread (PAK-FA and IAF FGFA)

some hype :)

Combat Ready: PAK FA Gets Improved Highly Maneuverable Missiles
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... and more hype :)
New missile for Russia's 5th-generation fighter to exceed Mach 3.5 speed — developer

The missile will be placed inside the fighter’s fuselage

The new X-58USHK missile for Russia’s fifth generation Sukhoi PAK FA fighter will exceed the speed of 3.5 Mach, CEO of Tactical Missiles Corporation (KTRV), which is developing these weapons, Boris Obnosov, told reporters on Wednesday.

"The X-58USHK missile for the fifth-generation fighter is at the final stages of development ... the flight speed will exceed 3.5 Mach," Obnosov said.

According to him, the missile will be placed inside the fighter’s fuselage.

Obnosov said that the X-58USHK missile has a major export potential owing to its speed characteristics and small size.

The KTRV Corporation announced in early July the beginning of testing of a new anti-radar missile for the PAK FA fighter jet.

The Sukhoi PAK FA (Prospective Airborne Complex of Frontline Aviation) is a fifth generation fighter program of the Russian Air Force. The T-50 is the name of the prototype aircraft designed by Sukhoi for the PAK FA programme. The PAK FA is intended to be the successor to the MiG-29 and Su-27 in the Russian Air Force and serve as the basis for the Fifth Generation Fighter Aircraft being co-developed by Sukhoi and Hindustan Aeronautics Limited (HAL) for the Indian Air Force.

PAK FA fighter first flew in 2010. The aircraft is expected to enter service in 2016, and serial deliveries will begin in 2017.
source, yeah, ТАСС:
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Hyperwarp

Captain
You can get a peek at the new helmet for T-50

T50_1.jpg


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aksha

Captain
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The ongoing MAKS 2015 air show in Moscow features an impressive flying display by the Sukhoi T-50, the fifth-generation prototype fighter's first public outing in two years. But even the rousing applause fails to mask the disappointment of Russian officials at the Indian Air Force's (IAF's) foot-dragging in co-developing the T-50 into a "fifth generation fighter aircraft" (FGFA) that the IAF will buy.

Well-informed sources in Moscow say the IAF vice chief has written a letter that effectively blocks the FGFA project. It criticises 27 different aspects of the FGFA, raising questions that must be answered before New Delhi and Moscow put $2.5 billion each into jointly developing the advanced fighter.


Business Standard also learns the IAF has vetoed a Russian offer to co-develop a fifth-generation engine for the FGFA. This is baffling to the Russians, given the Defence R&D Organisation (DRDO) long-standing attempts at joint engine development in order to end India's expensive dependency on foreign vendors for aero engines. An internal DRDO estimation reckons that India will import aero engines worth Rs 3,50,000 crore over the next decade.

After the DRDO failed to develop the Kaveri engine to the level where it could power the indigenous Tejas Light Combat Aircraft (LCA), it strived to persuade French engine-maker, Snecma, to co-develop an engine. But Snecma declined to share key technologies, especially those relating to materials that can withstand the hellish temperatures created in the engine's combustion chamber.

Nor has Washington agreed to share these technologies, even after President Barack Obama agreed during his January visit to New Delhi that a "joint working group" would explore US-India cooperation in engine technology.

DRDO and Hindustan Aeronautics Ltd (HAL) officials say the Russian offer of engine co-development fits well with the FGFA project itself, since the engine will power the same fighter. Currently, the Sukhoi T-50 is powered by the NPO Saturn AL-41F1, which only is a souped-up version of the AL-31FP engine that powers the Sukhoi-30MKI. A brand new, more powerful, engine is needed to let the FGFA supercruise, or fly at supersonic speeds while cruising without an afterburner. This is considered essential for a fifth-generation fighter.

Military aerospace experts worldwide believe that, given Moscow's economic distress, the T-50 project badly needs India's financial partnership to move forward. So far, the Russian Air Force has ordered only one squadron of T-50s.

Sergey Chemezov, who heads Rostec, the powerful Russian high-technology agency, downplays India's delay. "As for the involvement with India, there is a certain delay, though this is not something that we (Russia) can be responsible for. On our end we can fully continue the development of the project as per our commitments," Chemezov told Business Standard.

But even the defence ministry is questioning why the IAF is delaying a project it has earlier championed, and to which India has committed itself with an Indo-Russian inter-governmental agreement (IGA) and the expenditure of about $300 million in a "preliminary design phase". Critics of the IAF allege it is scuttling the long-term benefits of co-developing the FGFA in order to quickly buy the Rafale, preferably in numbers larger than the 36 fighters that the prime minister requested in Paris in April. A defence ministry official says that, in its eagerness to obtain the Rafale, the IAF has deliberately placed holds on every other aircraft procurement, including the FGFA, the Tejas and the plan to extend the Jaguar's service life by fitting it with a new engine.

According to this official, the IAF aims to create the impression of a dangerous shortage of fighters, so that the government buys the Rafale quickly. In another volte-face, the IAF has proposed that the FGFA not be co-developed but limited numbers of the T-50 fighter be built in India.

If implemented, this would take India back to the 1970s and 1980s procurement model, which involved license-producing fighters like the MiG-21 and Jaguar in HAL without Indian involvement in designing or developing the aircraft.

In the 1990s and 2000s this was superseded by another procurement model that was first implemented in the Sukhoi-30MKI. In this, India specified modifications to the baseline Russian fighter, improving the Sukhoi-30 into the Sukhoi-30MKI through advanced avionics and a thrust-vectoring engine. The much-improved fighter continues to be licence-built in HAL Nashik.

However, by accepting the Sukhoi T-50 without improvements, the IAF is reverting to the 1990s.

This would be a volte-face by the IAF. Three years ago, the IAF has specified 40-45 improvements that it deemed essential for the T-50, listing these out in a so-called "Tactical Technical Assignment". This wish list included: 360-degree radar coverage by adding two sideward-looking radars; and more powerful engines;

The design and development needed for meeting the IAF's requirements would constitute India's work share of 25-30 per cent. If the IAF now demands the same fighter as the Russian Air Force, HAL's work share would fall to zero. And the IAF would get a fighter designed for the Russian Air Force.

i can't confirm about the IAF trying to stall the FGFA ,
but i know very well that they tried and still does their level best to stall the Tejas progrmme
 

aksha

Captain
what seems to be the stage 2 programme- 056

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from berkut

... So, back in 2010, it became clear that a few poorly designed plane. Required operating overload withstand could not cut the rivets on the air intakes, air-to-air heat exchangers for cracked welds, and the fuel in the tank №3 categorically refused consumed completely. To the first safety car came the assigned resource to 300 hours, in August 2011, it delivered on completion (the rest of the gain made in the factory), and started to design the machine of the 2nd stage (by the way, incidentally removed from the keel 50-1 left there wrench key). At the 2nd stage significantly increased the proportion of composites (virtually the entire lining of the RMB has become), but the weight of the airframe due to increased KCC still excessively increased. Then they decided to replace many nodes B95 duralumin and AK-5 on the aluminum-lithium alloy 1461T with a specific weight of almost 20% less. In October 2012, the final decision on the launch of the 2nd stage of production. It was planned 2 cars - T-50-7 and T-50-8. At that time, at different stages of production are 3 cars 1st stage - 4, 5, 6. But just woke up and decided to make a 50-7 statics. And in February, the 13th decided to make the transition model and assign the T-50-6. To avoid confusion, the T-50-6 of the first phase became known as T-1.6.50, and the car of the second phase - T-02.06.50.
However, among the imported parts for T-50 and the US were the honeycomb structures of carbon, widely used in the wing and tail. Our military leadership decided that this is unacceptable and has decided to "importozamestit" and instructed CVTs "Technology" from Obninsk develop domestic cellular materials. By the way, all the other composites for the T-50 is also made in Obninsk. Expectedly, obnintsev provaflili all time. As a result, grief Sagittarius (he is now GK Pak, not Davydenko) in May even suggested removal of plumage from T-50-4 and put on 6-2, modified fairing and drive spindles, but a month ago finally came honeycomb.
Another problematic issue was the alloy 1461. Desperate crackled when mechanical working, then there must be said that the assembly we still conducted on technologies 70s, that is, the assembly units in unit kuvaldometr still very popular. A similar treatment alloy does not bore. As a result, went reconversion of the parts of the 1461 B-95, and sometimes back again in 1461.Chto, of course, led to the indescribable delight everyone, especially prochnistov.
Thus passed the 2013, 2014 and in February 2015 the first was docked 6-2 fuselage ...

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not sure about the names of the maneuvers:
  • Nesterov loop;
  • tailslide (колокол - "bell");
  • barrel roll (бочка - "keg") ;
  • Pugachev cobra ...

I'm guessing even more of them is available from
Video: Russia Shows Off Stealth Fighter at MAKS Air Show
Russia showed off its fifth-generation stealth fighter this week at the MAKS air show outside Moscow, according to news reports.

The T-50 is one of several prototypes developed by Sukhoi, a subsidiary of United Aircraft Corp., as part of the Russian air force’s PAK-FA program. The twin-engine fighter is designed to compete against such U.S. military aircraft as the
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and
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, both of which are made by Lockheed Martin Corp.

The multi-role T-50 has been a regular at MAKS after making its first appearance at the biennial air show in 2011. Similar to previous appearances, it performed a series of stunts, including the Pougachev’s cobra, in which the pilot raises the nose of the aircraft beyond the vertical position while maintaining constant altitude; the kulbit, in which the pilot flies a tight loop; the dead leaf, in which the pilot performs a wing-level stall; and tail-dive, in which the pilot flies vertical until losing forward momentum and falls backwards, according to an article by the state-owned RT.com.

(the video at this point; skipped)

While the T-50 didn’t fly at this year’s Paris Air Show, the president of United Aircraft, Yuri Slyusar,
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to the Russian air force in late 2016 or early 2017 as part of a test program, bringing the total number to eight. While the T-50 has experienced some development challenges such as
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, the aircraft is performing well in tests, Slyusar said.

The governments of Russia and India have partnered to develop an export version of the aircraft. Russian officials have trained their Indian counterparts and supplied with them data and software to work on research and development.

The T-50 is designed to carry a suite of internal and external weapons, including an internally mounted 30mm cannon, air-to-air missiles such as the K-77M medium-range missile and K-74M2 short-range missile, as well as air-to-ground ordnance such as the Kh-38M missile, KAB-500 bomb, even the Kh-35UE anti-ship missile.

(the graphics I saw on the SDF before at this point; skipped)
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will anybody comment? I've heard of the anti-radar version of the X-31, don't know much more ... (I put PAKFA-related parts in boldface):
MAKS 2015: KRTV adds IR seeker to Kh-58UShK anti-radiation missile
Russia's Tactical Missiles Corporation (KTRV) company demonstrated for the first time at the MAKS 2015 air show its upgraded version of the Kh-58UShK anti-radiation missile featuring an imaging infrared (IIR) channel.

This missile intended to be integrated into the internal weapons bays of Russia's new Sukhoi PAK FA (T-50) fighter aircraft.

According to KTRV's general director Boris Obnosov, equipping the Kh-58UShK anti-radiation missile control system with a thermal imaging channel enables it to strike radars operating in pulse mode and turning off when the missile is in its terminal phase.

The Kh-58UShK and Kh-58UShK IIR missiles can be mounted externally on a range of aircraft (using an AKU-58-type pylon) such as the MiG-35, Su-30MK, Su-34 and Su-35, or as the UShK variants of the Kh-58 have folding wings they can be stored in an internal weapons bay (like on the PAK FA) using a UVKU-50-type launcher.

The missile is designed to both hit pre-programmed radar targets and targets detected by the target designation system of the aircraft. The new Kh-58UShK IIR missile has an innovative broadband passive radar seeker working in the 1.2-11 GHz frequency range to seek out enemy radars.

The upgraded antiradar missile weighs 650 kg, is 4.19 m long, has a wingspan of 0.8 m, and a body diameter of 0.38 m. With its wings folded the missile's cross section is 0.4x0.4 m. The missile has a range of up to 245 km, is designed to hit within a radius of 10 m of its target and has a 149 kg warhead.

The Kh-58UShK IIR missile was developed by the Raduga (Rainbow) state design bureau.
source is Jane's:
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