PAK FA Update

walter

Junior Member
Russian Air Force Chief Upbeat Over PAK FA First Flight Date
Aviation Week & Space Technology
01/23/2006, page 33

Alexey Komarov
Moscow
Douglas Barrie
London

Several aircraft are being upgraded for air force use, but funding casts pall over all

Printed headline: Russian Roll Call

Russian air force chief Gen. Vladimir Mikhailov claims its PAK FA fifth-generation fighter prototype will fly in 2007, and indicates the service is also pursuing a single-engine light fighter as a complement.

The PAK FA, a large twin-engine Su-27 Flanker-class fighter, is being developed by Sukhoi, which designates it the T-50.

MIKHAILOV'S OPTIMISM may be fueled by the boost in Russia's defense procurement allotment. It is set at 236.7 billion rubles ($8.3 billion), a 31% rise above last year's budget. The PAK FA program is scheduled for an increase in development funding as part of the overall budget growth.

Mikhailov suggests they will do "whatever it takes" to have a prototype up by 2007. Wind tunnel testing of the airframe design is already complete.

He notes that the air force is looking to use PAK FA avionics and sensors also in a single-engine design.

Russian industry sources have confirmed that MiG wind-tunnel tested light fighter designs. Sukhoi could also investigate a single-engine design.

Sukhoi CEO Mikhail Pogosyan has been more cautious regarding a first flight of the PAK FA, indicating 2008 as a more likely date. Completion of preliminary state acceptance trials would follow in 2012-13, with full-scale production to begin in 2015, he believes.

With limited funding for the PAK FA, early financing for a single-engine program is highly unlikely, suggest military analysts in Moscow.

The air force is faced with an aging combat aircraft fleet and limited resources, so development programs and aircraft acquisitions need to be viewed in the light of this constraint, analysts say.

The air force's overall acquisition budget will double for 2006, according to Russian Defense Minister Sergey Ivanov. Nine aircraft will be added to the fleet. This includes the two Tupolev Tu-160 Blackjack strategic bombers that had been listed for 2005 delivery. One is simply an upgraded aircraft, the other is being built from unused airframe components from the original production run.

THE AIR FORCE is also due to begin to take delivery of Su-34 (Su-27IB) strike aircraft this year. Series production, albeit a very limited run, is underway at Novosibirsk and will be used to replace some of the aging Su-24 Fencers.

The near-term focus, however, remains on in-service upgrades. Alongside the Su-27SM, at least 18 Flankers have been modified to this standard to date, and the air force is also starting a MiG-29 Fulcrum program. "I've already ordered delivery of two dozen MiG-29s to MiG facilities for upgrade," Mikhailov says. A further six Su-27SMs are expected to be acquired this year.

The air force is continuing to test other upgrade packages. Aircraft undergoing state acceptance trials include the Sukhoi Su-25 Frogfoot, MiG-31 Foxhound, and Tupolev Tu-95 Bear and Tu-22M3 bombers.

Acceptance trials of the Mil Mi-28N Havoc attack helicopter are also underway. Rostvertol completed the first series-production standard aircraft in December 2005.

Mikhailov expects the first Yakovlev Yak-130 jet trainer will enter service by year-end.

All this activity belies the air force's ongoing budget problems. The 2005 plan called for four Yak-130s to be delivered in 2006, but the manufacturer suggests it will only supply one airframe due to lack of funds.

Last month, the Komsomolsk-on-Amur (KnAAPO) plant claimed it had yet to be paid for the Su-27SM upgrade. The dispute is ongoing.

Further developments include the Ilyushin Il-112V turboprop utility aircraft, which the air force plans to purchase to replace the Antonov An-26. MiG is also looking to manufacture a further prototype of the MiG-AT, substituting Russian for French engines and using local avionics sources to meet Russian air force stipulations.

If I were to pick between the Russian general and the Sukhoi CEO on who is closer to the truth, I would have to go with the CEO. Will be interesting to see or hear if anything does fly in two yrs. time. And no mention of foreign investment like India.
 

MIGleader

Banned Idiot
I have a feeling foreign investors are behind this. The russian airforce has not recieved any aircraft for 10 years, and now they are beginning to buy some of Migs, Yaks, Sukhoi's latest combat aircraft/trainers, aquiring s-400s, and securing dozens of upgrade packages for the existing force of flankers and foxhounds. Not to mention aquring a few strategic bombers. Where did this money all come from?

On top of all this, russia seems to have the money to make head way in the pak fa programm, which has not recieved many signifigant boosts since the flight of the su-47. I guess redesigning the airframe of the su-47 was not difficukt for sukhoi, but the money to keep the programm going with engines, weapons, and controls may take years.
 

tphuang

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I guess I've been wrong all along. I thought the Russians would not be able to come up with a prototype until 2009. I guess it really helps to have already designed berkut and MFI. Either way, it looks like the Russian defensive budget has reached the level where it can fund some domestic projects now and doesn't exclusively need foreign money. Good news for sukhoi and knaapo for sure.
 

MIGleader

Banned Idiot
Is russia still looking for foreign investors? or does this mean the project has been completly domesticated?

I would have liked to see china invest on the pak-fa project. The experience and know how learned from the russians could have really assisted j-xx. Its sad too see after all this development, the pak-fa is still really a flanker on the inside.
 

walter

Junior Member
I kinda doubt PAK FA will be a redesigned su-47 airframe or repackaged flanker. To my knowledge su-47 had next to zero VLO characterisics designed into it, and taking an existing airframe, redesigning it to be a VLO vehicle is nearly impossible. Paint all the RAM on there you want, at most you will get to LO levels of RCS, and probably only frontal. Other detail treatments can also lower RCS, but in practice, VLO so far is only achievable if the aircraft is designed from the ground up with VLO as a leading design criterium. Since PAK FA is to be a 5th gen fighter which among other things includes VLO characteristics, aka stealth, I don't think it will look very similar to the su-47. Lessons learned from existing aircarft will obviously be applied to a new design, especially avionics, but I really think we will see a non-derivative airframe.

Just my speculation though..., we still have to wait to see pics of wind tunnel models or a mockup, then we will have a better idea as to what extent existing designs have flowed into PAK FA.
 

walter

Junior Member
another update, sheding some light on Indian involvement in future Russian fighter designs:

Russia’s air force chief hits out at Sukhoi over spending priorities


Sukhoi is spending too much on developing the Russian Regional Jet (RRJ) instead of backing advanced military programmes, says Russian air force commander Gen Vladimir Mikhailov.


“There are some problems with funding for the fifth-generation fighter, but they to a lesser extent apply to the defence ministry rather than to Sukhoi,” Mikhailov says. “In parallel, Sukhoi is working on the civilian RRJ, which needs much money. They have taken some funds that might otherwise have gone to the combat aircraft and put them into the RRJ, hence the financial problems.”

Nevertheless, Mikhailov says work on Sukhoi’s T-50 next-generation fighter project is “generally on track”, with the airframe’s configuration now having been frozen. A prototype of the aircraft – selected to meet the air force’s fifth-generation fighter requirement – is expected to fly next year, he says.

Mikhailov reveals the air force is also considering backing the development of “a lighter aircraft with the same avionics and engine, but with one engine rather than two”. The lightweight variant would be cheaper to acquire, could fly from shorter airfields and carry four missiles against the T-50’s maximum of 12, he says. The proposal is linked to an Indian requirement for a new fighter in the 20-25t class.

VLADIMIR KARNOZOV / MOSCOW

artist's impression of the T-50:

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tphuang

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walter said:
another update, sheding some light on Indian involvement in future Russian fighter designs:



artist's impression of the T-50:

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Well, the Russians are certainly developing the lighter one for the export market. Kind of like F-22 and F-35. It makes you wonder what the capability of the two fighters will be like.
 
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