Sukhoi PAK FA

[WMD]

Russia and India have finalized preliminary design of fighter FGFA

Russia and India have finalized the shape of a promising multipurpose fighter FGFA (the export version of the T-50 PAK FA). This was reported in the press release of the company "Sukhoi".

"Fully developed shape of the aircraft. Agreed amount of work and the division of the parties at the stage of development activities (R & D). Preparations are being made to a contract for OCD. His signing is planned for this year, "- said in a press release.

FGFA fighter developed on the basis of Russian-term aircraft T-50. The agreement on the joint production of the aircraft Russia and India signed in October 2007. In December 2010, the "dry" agreement with Hindustan Aeronautics Limited for the development of conceptual and technical design of aircraft. The deal amounted to $ 295 million. The total project budget is estimated at $ 11 billion.

As reported, FGFA will be different from the T-50 - this is due to the specific requirements of the Indian side. reported , in particular, that the FGFA will be produced as a single and in double versions.

In total, India plans to buy 144 fighter FGFA, and in the next 20 years for the purchase and maintenance of aircraft a Defense Ministry will spend $ 35 billion. The first prototype aircraft India will receive in 2015-2016 year. In February 2013 FGFA layout shown at the exhibition Aero India 2013 in Bangalore.

FGFA will reach 22.6 meters long and 5.9 meters wide with a maximum take-off weight of 34 tons. Motors with all-aspect thrust vector control will allow the aircraft to accelerate to 2.3 thousand kilometers per hour. Flight range fighter of 3.8 thousand kilometers.

Besides India FGFA is scheduled to ship to other countries.

Lenta.ru: Наука и техника: Оружие: Россия и Индия завершили работу над обликом истребителя FGFA

 

[Austin]

interview on PAK-FA 2nd stage engine

Interview:General designer "Saturn" Yuri Shmotin

"The engine of the second stage of the fifth generation aircraft will give new life"

One of the biggest challenges currently facing the Russian aircraft engine is a development of the second stage engine for the aircraft PAK FA (T-50). Most of the work on the creation of this engine performs Rybinsk "Saturn."

About that, at what stage is the creation of the engine, which features the new aircraft will become the "heart" told "Interfax-AVN" chief designer "Saturn" Yuri SHMOTIN.

- Yuri, tell us what should be the engine for the fifth generation fighter aircraft? What are its main features?

- The plane of the fifth generation T-50 is not just a fighter, bomber or attack aircraft. This multi-purpose aircraft. Such aircraft should be given a new "heart", which would make it highly maneuverable, fast, cost-effective and able to withstand such competitors as American F-22 and F-35.

Engine for the fifth generation fighter aircraft will be different from the previous generation increased specific thrust, lower weight, reduced specific fuel consumption and the presence of new solutions for low visibility. In this case, it should be relatively cheap to operate and maintain. "Saturn" is currently working on such an engine.

- What units and aggregates of the new engine is given special attention in the development? What is the greatest challenge for the engineers?

- In aircraft engines, everything is important. One of the most complicated engine components is a high-pressure turbine. We were asked to make a turbine operating at this level of temperature at which the metal nickel alloys just melted. This work was successful.

The heart of an aircraft engine is a high-pressure compressor. Of its level of excellence is directly dependent all basic characteristics of the engine. The amount of detail in the new high-pressure compressor, we have managed to reduce by almost half compared with the previous stage of the compressor, while providing a significant performance increase by one level. The cost of making such a compressor will not exceed the cost of making HPC engine fourth generation. This is subject to the application of new materials and technologies.

Solving these and other problems, we will get to a gas generator with a new level of performance, which will be the basis for a new family of engines. Characteristics of the gas generator units, such as the effectiveness of the ARC, increased on average by more than four percent, and on a number of modes and eight. In fact, it is a revolution in engine, because determines the possibility of the engine with a huge reserve of development for traction.

- What structural materials preferred for a new engine?

- No of new materials is impossible to provide the characteristics that we make to the new generation of CCD. The specialists of "Saturn" is a good experience and the impact of new materials developed by the All-Russian Scientific Research Institute of Aviation Materials (VIAM).

First of all, it is, of course, high-temperature nickel alloys spade. Turbine blade - it is a unique product. It is a complex spatial structure, which must operate at temperatures above 2000 K.

There are also proprietary materials "Saturn." We can offer them for a new generation engine. These materials make it possible to increase the half life of the engine at the same temperatures.

Today much is said about the use of composite materials. The new engine for the PAK FA used composites that are based not only on the polymer matrix to the cold part, and parts by the high-temperature compositions. These works "Saturn" is already long enough.

- Do not forget that all new and modern with the time expires. Is there a possibility of the engine created for modernization?

- Of course. Concurrently with the development work on the engine of the fifth generation we build backlog, which will develop the engine is not only ten, but at 30, maybe 50 years.

Today, the "Saturn" conducted extensive research on the development of fifth-generation engine with the use of a technology called "variable cycle engine." The studies, which suggest that a certain transformation engine thermodynamics through design changes can significantly improve engine performance at subsonic and supersonic flight conditions. One of these transformations can be the use of the third circuit. All this is provided.

- How will affect the installation of new engines for flight characteristics of fifth generation fighter? Feel a difference pilot peresevshy the plane with the engine of the first stage on the plane with the engine of the second stage?

- The new engine is fundamentally different from the previous product of the first stage. Of course, the pilot will immediately feel the difference in traction. The plane with the new engine will be more docile and can quickly react to the pilot. In fact, the engine of the second stage is to give the T-50 aircraft to a new life.

- Yuri, we know that the PAK FA is already being tested. What engines are equipped with the first prototypes?

Now prototype completed the first phase of the motor, which in engineering circles is known as the product 117. In essence, this is the result of a deep family AL-31, which is installed on the aircraft today the Su-27.

Certainly, it's a great engine, which is a best seller and is built on the fundamental principles and basic ideas of the design office Arkhip Cradles. But this is still the engine stage 4 + +.

 

[Daredevil]

Contract to develop a sketch and technical project of FGFA completed

The contract to develop a sketch and technical project of the Russian-Indian perspective multi-functional 5th-generation fighter (PMI/FGFA) has been completed, Sukhoi said in a press-release. The fighter design has been fully developed. "Both parties have agreed upon on the amount and division of work during the research and development (R&D) stage, the Russian aviation company said. A contract for the R&D is being prepared and will be signed this year, according to Sukhoi.

The agreement on the joint development and production of the 5th generation fighter aircraft (FGFA) was signed in October 2007 in Moscow at the 7th Session of the joint Russian-Indian Intergovernmental Commission on Military and Technical Cooperation.

It is the largest joint Russian-Indian military and technical cooperation project. In December 2010, Rosoboronexport, Sukhoi Company and the Hindustan Aeronautics Limited signed a contract to develop a sketch and technical project of the fighter. In the course of the first stage of the project the Russian side has trained Indian professionals, provided them with the original data and the software to create a single working environment. The Indian working group of experts has been working in Russia since January 2012 and a group of Russian specialists - in India.

The PMI/FGFA fighter developed by the parties will have some differences from the Russian prototype due to specific requirements of the Indian Air Force.

Sukhoi is also currently involved in other Russian-Indian joint programmes, such as the modernisation of the Indian Air Force Su-30MKI fighters and adaptation of the Russian-Indian air-to-ground BrahMos cruise missile to the Su-30MKI.

India is currently the top importer of Russian military equipment, accounting for about 28 percent of Russian arms exports. Despite, delays and steep cost escalation of military equipment, Russia remains India's largest supplier of arms, supplying 70 percent of country's arms imports. India plans to spend about $100 billion over the next 10 years to modernize its Soviet-era weaponry.

The Indian Air Force has been flying Sukhois from 1997 onwards when New Delhi first procured its first off-the-shelf SU-30s from Russia and gradually developed Sukhoi Su-30MKIs at home after Hindustan Aeronautics Limited began production under license from the Sukhoi Design Bureau.

Contract to develop a sketch and technical project of FGFA completed | Russia & India Report

 

[rahulrds1]

off topic,... but related to stealth.

one of the angle of stealth history,

http://defenceforumindia.com/forum/military-aviation/48973-stealth-fighters-bombers.html#post713869

 

[santosh_g]

sir, newbiee question.. cockpit of PAK-FA looks inferior to F-22 cockpit.. does it mean western cockpit and controls are generation ahead of russians???

 

[p2prada]

sir, newbiee question.. cockpit of PAK-FA looks inferior to F-22 cockpit.. does it mean western cockpit and controls are generation ahead of russians???

Sorry, it doesn't work that way.

Cockpits are designed based on user requirements.

 

[t_co]

Sorry, it doesn't work that way.

Cockpits are designed based on user requirements.

Ah, I guess that means western pilots are a generation ahead of russians

 

[ersakthivel]

sir, newbiee question.. cockpit of PAK-FA looks inferior to F-22 cockpit.. does it mean western cockpit and controls are generation ahead of russians???

PAKFA cockpit is at the same level of LCA tejas cockpit. Nothing to be surprised about. that was the reason IAF refused russian cockpit instruments in Sukhoi -30 itself and went for it's own displays based on LCA program which is being implemented fleet wide.

For the same reason IAf is going for local cockpit displays and integration of mission computers weapon store softwares and all the modern displays in the indian version FGFA too ,that are upto date with western standards. So you won't see this cockpit on Indian version of FGFA.

In FGFA we are just buying the just airframe with FCS , engine and long range BVRs(if any, because nothing new is specified till date). Integration open architechture mission stores software and mission computer, with open standards avionics along with RWR and total integration of the systems will be done in India. All thanks to the spin off generated by LCA Tejas program.

These systems will allow much more flexibility to IAf to integrate any weapon it desires along with any ASEA radar it may desire in future and needed data links so that indian FGFA version will seemlessly linked to Indian AWACS and IAF fighter fleet much in the same way as western fighters. Much needed composite tech crucial for making FGFA airframe too has been already perfected for the by ADA .All thaks to the path breaking work done for LCA Tejas program.

For mk-2 there is going to be and indigenous ASEA radar as well. If IAF wants it can port this radar on FGFA also, but nothing has been confirmed about it as of today.

 

[p2prada]

Ah, I guess that means western pilots are a generation ahead of russians

PAKFA will be the second aircraft after the Su-35 to have sensor fusion. Cockpit ergonomics don't really matter today. It just depends on user specifications, like I want my hotas buttons at this and this place, I want the hotas stick to my right instead of the center. I want 2 MFDs instead of 1 or I want 4 MFDs instead of 2 etc.

According to what is claimed by Sukhoi, both Su-35 and PAKFA cockpits match Rafale and exceed F-22s current cockpit. Eventually it should have one of the best cockpits in the world. The Su-35 itself is said to have significant amounts of automation in flight controls compared to older aircraft like MKI and the avionics is already a generation ahead compared to the MKI. PAKFA exceeds that. If we go by HAL's claims, FGFA may exceed even that.

 

[Austin]

T-50 & Mig-29M2 Т 50, МиГ 29М2 / T 50 MiG 29M2 - YouTube
Su-35 Су 35 / SU 35 - YouTube
Su-34 Су 34 / Su 34 - YouTube

 

[average american]

India russian pakfa problems

The new stripped down version of the Mig 29 being sold to India has already been designed by Russia. In years gone by, the post USSR era, the penury stricken Russian arms industry was looking for buyers. It found few. India sanctioned by the USA plopped down billions. Now the world stage has changed. India is snuggling up to the Russian nemeses-- the USA. According to press reports, the Russians are not very keep on using India as equal design partners in airplane development projects. Russia wants Indian Dollars for supply of kits which it had agreed to during lean times.

Designs for the PAK-FA have already been frozen by the Sukhoi design bureau, which means that Indian aircraft engineers have already missed out on the critical knowledge curve of aircraft design. Also, the unequal status of the Indian and Russian aviation industries means India will be the junior partner contributing very little except finance.


The Indians were furious that the Russians flush with Petro Dollars were not participating in a joint design of the aircraft. According to reports the decibel level of the meeting was "frank" (diplomatic euphuism for direct yelling at each other). Russian bypassed the Indian design experts and froze the design of the aircraft. Now it is refusing to sell the top notch Russian versions of the planes--which it provided to the Chinese. India is chagrined that she is receiving stripped down versions of the Migs and SUs with almost to design input from the Indian.

Fedorov said that the process of identifying the participation of Indian partners in the FGFA would be completed by the year-end or in the shortest possible time. India Today. September 29th, 2008 . The first prototype of the FGFA was to fly next year with the ALF-31 FP engine.

India subcontractors have still not been decided upon in September 2008. The Russian plan on picking the components to be built by the Indians and the subcontractors by the end of the year. The plan will begin flying in March 2009. What will the Indian contractors do within a few weeks before the trials? The only answer is they will be able to paint the tri-color on the Russian aircraft, designed and built by the Russians.

The Chinese are spending $320 Billion on new aircraft development and exporting to more countries than one can count. China according to Janes weekly has achieved Technology independence proven by their exponential increase in new designs propelled by a $35 Billion budget to boot. The Chinese bought 250 of the planes and halted the import after 150 kits. The Chinese used the design to build their own version of the plane and renamed the two seater J-11.

The tall tales of Indian defense production are shattered once again. Indian Purchase orders from Russia and the USA tell a tale of failure and incompetence. India has been unable even to make the LCA which has been in development for more than a decade. The entire missile program has been scrapped, and tanks program already is doldrums cannot meet the needs of the Indian army.

Weapon and Technology: India and Russian Defence deals in Problem


Weapon and Technology: Indian PAK T-50 to use Russian avionic

 

[average american]

Re: India russian pakfa problems

India has decided to to equip its Perspective Multirole Fighter (PMF) variant of the Russian T-50 fifth-generation combat aircraft with avionics similar to Russia's version of the plane. The future plane (PMF) will have not only the same airframe, but also an integrated system of onboard equipment. Details of the PMF design will be specified after the relevant contracts with India are signed.

 

[hit&run]

Re: India russian pakfa problems

Why you have edited the thread title ?

Mods please merge this news article to PAKFA sticky.

 

[wild goose]

Re: India russian pakfa problems

This article seems to be at least 5 years old.

Fedorov said that the process of identifying the participation of Indian partners in the FGFA would be completed by the year-end or in the shortest possible time. India Today. September 29th, 2008 . The first prototype of the FGFA was to fly next year with the ALF-31 FP engine.

India subcontractors have still not been decided upon in September 2008. The Russian plan on picking the components to be built by the Indians and the subcontractors by the end of the year. The plan will begin flying in March 2009.

What are you trying to convey?

 

[sayareakd]

Re: India russian pakfa problems

This article seems to be at least 5 years old.



What are you trying to convey?

He want to say buy US F35 EXPORT version that we cant use offensively cant use against nation with remote kill switch, weekly insspection and no commitment to spare parts supply and you have to take our line in international relations.

 

[wild goose]

Re: India russian pakfa problems

He want to say buy US F35 EXPORT version that we cant use offensively cant use against nation with remote kill switch, weekly insspection and no commitment to spare parts supply and you have to take our line in international relations.

Before trying to push it through others throat, let the US operate it in numbers and prove its worth. Or let the Israel AF prove its capabilities.

 

[Daredevil]

Russian T-50 fighter jet to start state flight test in 2014

RIA Novosti

Russia will start state flight tests of its fifth-generation T-50 fighter jet in 2014, United Aircraft Corporation's President Mikhail Pogosyan told reporters on Tuesday.
"In 2013 we are expected to wrap up its preliminary tests and start operational testing. In 2014, we are planning to start official state tests," Pogosyan said on Tuesday, adding "the first stage of the state trials should be complete by 2015."

The test program involves six prototype airframes, including four flying, one static and one systems test airframe. Another flying prototype will join the tests this year, Pogosyan said. "Flight testing this year will go ahead with five aircraft," he said.

The T-50, also known as PAK-FA (future tactical fighter aircraft), first flew in January 2010 and was presented to the public at the Moscow Air Show in 2011.

The T-50, which will be the core of Russia's future fighter fleet, is a fifth-generation multirole fighter aircraft featuring elements of "stealth" technology," super-maneuverability, super-cruise capability (supersonic flight without use of afterburner), and an advanced avionics suite including an X-band active phased-array radar.
India will also buy a fighter aircraft based on the T-50, known as the FGFA (fifth-generation fighter aircraft).

United Aircraft Corporation is the state holding company uniting Russia's aircraft building industry including Sukhoi, a military and civil aircraft manufacturer.

 

[arnabmit]

Russian Air Force pilot flies first PAK FA test mission | Russia & India Report

A Russian Air Force pilot of the Chkalov Flight Test Centre made a PAK FA test flight for the first time, Sukhoi said in a press release on Thursday. The plane took off the airfield of the M.M.Gromov Flight Research Institute in the city of Zhukovsky in the Moscow region, the company said. The system and equipment testing went on for two hours in accordance with the flight test programme and the flight was a success, in full conformity with the flight mission, according to Sukhoi.

Four planes are currently undergoing flight tests. Two more aircraft are engaged in ground experimental missions – one plane is a complex ground test stand and the other undergoes static tests, Sukhoi said. The fifth PAK FA aircraft will join the flight test programme in the second half of 2013. Construction of that plane at the Sukhoi's aircraft plant in Komsomolsk-na-Amure is almost complete.

 

[bhramos]

Su-T50 PAKFA aerodynamics analysis:

1- FUSELAGE:
T-50's airframe fuselage has nothing to do with Su-27's design. Although people tend to confuse that it's derived from T-10M's airframe, but It's completely a new design with smoother edge and parallel edge surface leadins to very low observable design and reduced radar cross-section. Although the ''official'' RCS of T-50 is yet to be disclosed, but it can't be more than 0.01sq.m even in ''worst case-scenario.''

2- LEADING EDGE ROOT EXTENSION (LERX):
The articulated LERX of the PAKFA generates high speed vortex during high AoA which is a must for any modern 5th gen fighter assigned to air superiority role.

3-TRAPEZOIDAL WING PLANFORM:
PAKFA is the first Sukhoi design to have trapezoidal wing planform instead of traditional swept-back wing. The ~840 sq.ft wing area provide max lift during take off. The main wing leading edge has a sweep angle of 47degree. The wings are smoothly jointed with the flat shaped fuselage via a wide chord created by the negative sweep angle of the trailing edge of the wing. This allows for large values of absolute height especially at the root but small values of relative thickness combining good structural integrity with lower drag forces in the trans and supersonic flight.

4-HORIZONTAL STABILIZERS:
The all moving stabilizers add more control surface to the aircraft. It provides pitch control in all flight regimes by moving in-phase. At supersonic speed it also provides roll control by differential movement.

5-VERTICAL STABILIZERS:
The vertical tails are also all- moving, a rather unusual approach. They are widely spaced in order to provide the necessary momentum but with a smaller surface. They move in-phase to provide yaw control operating as rudders and differentialy to increase drag, acting as an air brake. They are also inclined outwards to reduce the radar visibility in the lateral hemisphere.

6-AL-41F TVC ENGINE:
The AL-41 bypass turbofan engines are widely placed to create space between them for internal payloads. The 2x AL-41F engine produces a max of 170KN Thrust with supercruising capability. The TWR with full tank fuel and max combat load is predicted to be around 1.3

7-AIR INTAKESnot shown in the top-view figure)
The air intakes are located similarly on each side of the fuselage and they are beveled in two planes in order to keep the flow attached even at high angles of attack. The air intakes are further apart in respect to the vertical and horizontal planes than the engines thus the ducts are curved. This curvature hides the compressor and reduces the radar signature of the engine in the forward hemisphere.(so please don't say the fan-blades of PAKFA are visible and vulnerable to IRST detection)

8-NEW DESIGN CANARDS:
PAKFA has a new design canards which can't be actually said to be canards. Actually these are mixed between canard and airfoil. These are full moving and provides additional lift during take off and help achieving better AoA.

9-SLATS:
The leading edge slats starting from the wing root to wing tip is full moving and provides additional lift at higher AoA.

10-AILERONS:
The ailerons provided at the trailing edge of the wings have almost 30% of span of the outboard section of the wing and thus providing max yaw control.

11-FLAPERONS:
The large trailing edge flaperons spanning about 60% of outboard wing section and truncated and blended with the leading edge of horizontal stabilizers.

12 & 13- ???
Can't identify the component what the pic intended to.

14- 3D TVC NOZZLE:
The nozzles are faced slightly outwards and placed at a significant distance from each other. This feature with 3D thrust vectoring capability provide better control of the aircraft. The 2 nozzle can deflect the thrust vector by rotating around two axes either in synchronism or differentially. The angle between their axis and the vertical plane can create rotating moments when different thrust is produced by each engine and also counter-acts the asymmetrical moment each engine creates because of its lateral distance from the longitudinal symmetry axis.

 

[AVERAGE INDIAN]

Re: India russian pakfa problems

I dont think this craft is going to be ready as per its plan.. keeping the several hiccups that usaually come along the completion of a fully functional AC. Secondly i have not heard any development currently being progressed in India though the word is out. HAL insisted on having the development front to be done here as well (propabably some percentage of the work), however there is no news that i have come across the same like issues, completion, testing etc

could anybody provide some insight