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Russian Air Force: News, Updates & Discussion

Discussion in 'Europe & Russia' started by MiG-23MLD, Apr 29, 2013.

  1. MiG-23MLD

    MiG-23MLD Major SENIOR MEMBER

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    Let us discuss PAKFA

     
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  2. MiG-23MLD

    MiG-23MLD Major SENIOR MEMBER

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  3. MiG-23MLD

    MiG-23MLD Major SENIOR MEMBER

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    Re: Pakfa

     
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  4. MiG-23MLD

    MiG-23MLD Major SENIOR MEMBER

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    Su-34

     
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  5. MiG-23MLD

    MiG-23MLD Major SENIOR MEMBER

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    Su-27 family

     
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  6. omya

    omya Lt. Colonel ELITE MEMBER

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    re: Russian attack aircraft

    Introduction -
    The Sukhoi PAK FA is a twin-engine jet fighter being developed by Sukhoi for the Russian Air Force. The Sukhoi T-50 is the prototype for PAK FA. The PAK FA is one of only a handful of stealth jet programs worldwide.
    The PAK FA, a fifth generation jet fighter, is intended to be the successor to the MiG-29 and Su-27 in the Russian inventory and serve as the basis of the Sukhoi/HAL FGFA being developed with India. The T-50 prototype performed its first flight 29 January 2010. By 31 August 2010, it had made 17 flights and by mid-November, 40 in total. The second T-50 was to start its flight test by the end of 2010, but this was delayed until March 2011.
    The Russian Defence Ministry will purchase the first 10 evaluation example aircraft after 2012 and then 60 production standard aircraft after 2016. The first batch of fighters will be delivered with current technology engines. The PAK-FA is expected to have a service life of about 30–35 years.
     
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  7. MiG-23MLD

    MiG-23MLD Major SENIOR MEMBER

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    MiG-29 Family

     
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  8. omya

    omya Lt. Colonel ELITE MEMBER

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    re: Russian attack aircraft

    Overview -
    Prototype T-50 in flight
    Although most information about the PAK FA is classified, sources within in the Russian Air Force and Defense Ministry have openly stated that it features stealth technology and has the capability to supercruise, and incorporate advanced avionics such as an Active Electronically Scanned Array (AESA) radar and an artificial intelligence system.[58] It is to be outfitted with the next generation of air-to-air, air-to-surface, and air-to-ship missiles.
    Video from the PAK FA's first flight shows that it has no conventional rudders; its vertical tails are fully movable.[60] This special tail fin design is mechanically similar to V-tails used by the Northrop YF-23 in 1990s, but is supplemented by dedicated horizontal stabilators (as on the F-22). The T-50 has wing leading-edge devices above the jet engine intakes that may pose a challenge for signature control.
    Composites are used extensively on the T-50 and comprise 25% of its weight and almost 70% of the outer surface. It is estimated that titanium alloy content of the fuselage is 75%. Sukhoi's concern for minimizing radar cross-section (RCS) and drag is also shown by the provision of two tandem main weapons bays in the centre fuselage, between the engine nacelles. Each is estimated to be between 4.9-5.1 m long. The main bays are augmented by bulged, triangular-section bays at the wing root.
    The Moskovsky Komsomolets reported that the T-50 has been designed to be more maneuverable than the F-22 Raptor, at the cost of making it less stealthy than the F-22. One of the design elements that have such an effect is the Leading Edge Vortex Controller (LEVCON).
     
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  9. omya

    omya Lt. Colonel ELITE MEMBER

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    Stealth -
    Russian sources indicate the PAK FA lacks the very-low-observable (VLO) stealth of the F-22. Instead, reducing observability with composite materials, aerodynamic configuration, and engine signature reduction measures to achieve low (but not very-low) levels of radar, optic and infrared signatures. Carlo Kopp has said that once the PAK FA is fully developed into a stealthy design, it should be a rough match for the F-35 in low observability, but aerodynamically superior.
     
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  10. omya

    omya Lt. Colonel ELITE MEMBER

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    Armament-
    The PAK FA has a reported maximum weapons load of 7,500 kg.[67] It has an apparent provision for a cannon (most likely GSh-301), and could possibly carry two 30 mm cannons. The PAK FA has two internal bays estimated at 4.6-4.7 metres by 1-1.1 metres.[68] The expected initial armaments include Kh-35UE (AS-20 "Kayak"), Kh-38ME, Kh-58UShKE (AS-11 "Kilter"), and RVV-MD (AA-11 "Archer") missiles.
    Two Izdeliye 810 Extended beyond visual range missiles per weapons bay. Multiple Izdeliye 180 / K77M beyond visual range missiles. K74 and K30 within visual range missiles can also be carried.[68] Two KH38M or KH58 USHK air-to-ground missiles per weapons bay. Multiple 250–500 kg precision guided bombs per weapons bay,[68] with a maximum of 10 bombs in internal bays. Other possible loads include one 1,500 kg bomb per weapons bay or two 400 km+ range anti-AWACS weapons (such as the RVV-BD) on external hardpoints.
    PAK FA chief designer Alexander Davydenko has said that there is a possibility of the installation of BrahMos supersonic missile on the PAK FA and its FGFA derivative. However, it is unclear how these missiles will be installed, though it can be one or two missiles only due to heavy weight of the BrahMos.
     
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  11. omya

    omya Lt. Colonel ELITE MEMBER

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    Avionics -
    NIIP's AESA radar for the PAK FA on display at the 2009 MAKS airshow
    The PAK FA's SH121 radar complex includes three X-band AESA radars located at the front and sides of the aircraft. These will be accompanied by L-band radars on the wing leading edges. L-band radars are proven to have increased effectiveness against very low observable, or stealthy, targets which are optimized only against X-band frequencies, but their longer wavelengths reduce their resolution. However the initial prototypes will use legacy passive electronically scanned array radar.[verification needed] According to Sukhoi, the radar will reduce pilot load and make use of a new data link to share information between aircraft. In 2012 ground tests began on the third aircraft of the Tikhomirov Scientific Research Institute of Instrument Design's AESA radar. The PAK FA will feature an infra-red search and track optical/IR search and tracking system, based on the OLS-35M from the Su-35S.
     
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  12. MiG-23MLD

    MiG-23MLD Major SENIOR MEMBER

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  13. omya

    omya Lt. Colonel ELITE MEMBER

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    Engines -
    On its first flights, the PAK FA was expected to use a pair of conventional Saturn 117S engines, but a new engine 117 (AL-41F1) powered its first flight. The new engine features a digital control system (FADEC), and is reportedly capable of producing 33,000 lbs (147 kN) of thrust in afterburner, has a dry weight of 1420 kilogram and a thrust to weight ratio of 10.5:1.
    According to Sukhoi director Mikhail Pogosyan, the 117 (AL-41F1) is a new fifth generation engine built specifically for the PAK-FA. Pogosyan has clarified that claims of the use of an older engine are incorrect. Though the specifics of the new engine remain classified, information provided has included: increased engine thrust by 2.5 tonnes over the AL-31 engine, a reduction in engine weight by 150 kilograms (330 lb). These changes allow the aircraft to supercruise, sustaining supersonic flight speeds without using afterburners. Mikhail Pogosyan further mentioned that this engine meets the Russian Air Force's requirements and will be installed in production PAK-FA aircraft.
    The engine generates a larger thrust and has a complex automation system, to facilitate flight modes such as maneuverability. It is expected that each engine will be able to independently vector its thrust upwards, downward or side to side. Vectoring one engine up with the other one down can produce a twisting force, which would enable the PAK FA to be the first fifth generation fighter with full 3-D thrust vectoring along all three aircraft axes: pitch, yaw and roll. These engines will incorporate infrared and RCS reduction measures.There is little information about the new engine of T-50. According to preliminary facts, the engine will have increased thrust and fuel efficiency as compared to AL-41F1. Allegedly, the powerplant will have a thrust of about 107 kN in cruise mode and 176 kN in full afterburner mode.
     
  14. MiG-23MLD

    MiG-23MLD Major SENIOR MEMBER

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  15. omya

    omya Lt. Colonel ELITE MEMBER

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    Variants -

    FGFA -

    The completed joint Indian/Russian versions of the single-seat or two-seat FGFA will differ from the current T-50 flying prototypes through the addition of stealth, supercruise, sensors, networking, and combat avionics for a total of 43 improvements.
    Sukhoi director Mikhail Pogosyan has projected a market for 1,000 fighter aircraft over the next four decades, which will be produced in a joint venture with India, 200 each for Russia and India and 600 for other countries.[100] He has also said that the Indian contribution would be in the form of joint work under the current agreement rather than as a joint venture. The Indian Air Force will "acquire 50 single-seater fighters of the Russian version" before the two seat FGFA is developed.
    On 11 September 2010, it was reported that Indian and Russian negotiators had agreed on a preliminary design contract, subject to Cabinet approval. The joint development deal would have each country invest $6 billion and take 8–10 years to develop the FGFA fighter. The agreement on the pre-design of the fighter was to be signed in December 2010. The preliminary design will cost $295 million and will be complete within 18 months. On 17 August 2011, Russian state-run media reported that the new fighter will cost Russia and India $6 billion to develop, and that India would shoulder about 35% of the cost.

    Naval and other versions -

    Navalized Sukhoi T-50 PAK FAs will be deployed on the Russian aircraft carrier Admiral Kuznetsov and future Russian aircraft carriers. There will be a competition between the Sukhoi, Mikoyan and Yakovlev design bureaus to choose the new naval aircraft. Alexei Fedorov has said that any decision on applying fifth-generation technologies to produce a smaller fighter (comparative to the F-35) must wait until after the heavy fighter, based on the T-50, is completed.
     

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