Important differences between the smart claddings of the Su-57 and F-35A. What were the Indian experts pierced by?

While short-sighted senior military officials from the Indian defense department continue to sing the pathos of the impending finalization of the absurd contract for the purchase of 36 multi-functional Rafale fighters worth about 7,87 billion dollars (218 million dollars per unit), reporters of the eminent military analytical bharat -rakshak.com decided to go into all the harsh search of arguments in favor of the exit of the aircraft manufacturer Hindustan Aeronautics Limited from the FGFA program on 21 April 2019, which provided for joint I’m developing with the company Sukhoi the Indian version of the 5 fighter of the Su-57 generation.




Inconsistency and absurdity of action have become the main "highlights" of the representatives of the defense department and defense industry of India


As a key justification for the incident, Bharat Rakshak employees, referring to informed military and diplomatic sources in the Indian Air Force and HAL headquarters, presented the fact that the Indian side allegedly “was not able to participate in the FGFA program as the main contractor since November 2004 of the year, since it was during this period that the Sukhoi Design Bureau specialists completed work on a preliminary outline sketch of the promising multi-role T-50 PAK FA fighter. ” Meanwhile, this “opus” alone eloquently illustrated the deceit and opportunism of the “couch experts” of “Baharat” and representatives of the Indian Air Force.

The fact is that the implementation of the preliminary preliminary design of the T-50 fighter by the middle of the 2000's. it only marked the formation of the general concept of the new aircraft (including the aerodynamic layout of the airframe, overall dimensions, and also the calculated parameters of the future power plant), which even theoretically could not create any obstacles to the Indian side in designing the “critical” avionics components of the new fighter. Therefore, since the start of the Fifth Generation Fighter Aircraft program (launched in 2007 year), HAL and the Indian Defense Research and Development Organization (DRDO) had at their disposal a whole decade to develop such a knowledge-based element base: onboard radar with active phased array, multispectral optoelectronic sighting system, sensors for detecting attacking missiles, a digital computer, a warning system about radiation (STR), as well as integrated systems for electronic reconnaissance and electronic warfare.

In fact, the eleven-year-old participation of HAL in the FGFA program was remembered by the employees of the United Aircraft Corporation and PJSC Sukhoi Company by their regular whims and requirements bordering on military-technical blackmail. In particular, the HAL leadership and the Indian Air Force command repeatedly made attempts to “fetch” from the Russian contractor a “package” of 40 critical Su-57 technologies relating to the architecture of the promising on-board radar H036 Belka (Sh-121), the design of the turbojet two-loop afterburner engine “ of the second stage ”“ 30 Product ”, the Himalaya electronic warfare complex, blackmailing negotiators from the UAC by exiting the program. Against this background, the development of the element base for the first Indian AESAR-UTTAM AFAR-radar advanced with a noticeable slipping; even taking into account the fact that the transmitting and receiving modules of the new product are not so difficult to manufacture (in comparison with gallium nitride) gallium arsenide-microwave transistors in hybrid-integrated design.

The situation is not so rosy with the design of the “high-torque” turbofan turbojet engine of the new generation GTRE GTX-35VS “Kaveri” with a deviating thrust vector designed to partially re-equip the Tejas Mk.1 multi-role fighter aircraft fleet and to equip the more modern Tejas Mk.2 »And the promising fighter of the 5 generation AMCA, the development of which the specialists of the Aeronautical Development Agency (ADA) have been unsuccessfully fighting over the past 8 years. Representatives of the Ministry of Defense of India and the leadership of the DRDO have managed to bring the situation to utter absurdity here.

Despite the willingness to purchase arch-expensive French Rafal fighter jets (2 times more expensive than domestic Su-35С), the DRDO management refused to invest only 500 million dollars in the Kaveri project. And this is due to the fact that representatives of the French holding company Safran, specializing in the most complicated process of manufacturing heat-resistant single-crystal turbine blades by directional crystallization, have already expressed their willingness to invest about 250 million dollars in the design of Kaveri. Moreover, the French contractor planned to make this "injection" into the technological development of the GTX-35VS as part of an additional 3,4-billion "package" of military-technical assistance to the Indian defense-industrial complex.

As you can see, the above argument of the Bharat Rakshak journalists about “losing the opportunity to fully participate in the FGFA program since 2004 of the year” is an unreasonable dump into the media space, designed to preserve the reputation of Indian military and diplomatic structures in anticipation of the upcoming conclusion of major defense deals with leading military-industrial holdings of technologically developed states. This is not the only "pearl" of pseudo-experts bharat-rakshak.com.

“Smart radar plating” with distributed aperture continues to be one of the key trump cards of the multifunctional fighter of the 5 generation Su-57


At the end of their opus, Indian journalists tried to question the uniqueness of the multi-band radar “equipment” integrated in the Su-57 glider with a distributed aperture. But it turned out very crookedly. In particular, it was suggested that the American 5 generation F-35A / B / C fighters equipped with additional antenna modules integrated into the nose of the fuselage and wing socks have the same range of capabilities for monitoring airspace in the side hemispheres as the Su-57, which have additional AFAR modules H036B-1-01L / B (on the lower side faces of the nose of the fuselage) and H036L-1-01 (in the socks of the wing).

It’s just that our Indian colleagues did not take into account a very important detail. At the same time, the H036B-1-01L / B and H036L-1-01 AFAR modules are auxiliary “links” of the H036 “Protein” main radar and provide radar detection of surface and airborne objects in the side and rear hemispheres (adjusting the azimuthal zone) Proteins ”up to 270 degrees), additional antenna modules of the F-35 family of fighters perform completely different functions. F-35 nose-mounted AFAR modules serving the lateral hemispheres are antennas of the protected MADL tactical information exchange channel operating in the Ku-wave band and providing network-centric coordination in the Lightning squadrons during group departures.

Radar overview of the lateral hemispheres and target designation do not produce antenna data; all the more so because their peak power is very small due to the need to realize the maximum stealth of the MADL channel from enemy electronic intelligence equipment. As for the wing antennas of the Lightnings, here we are talking about the on-board electronic warfare complex AN / ASQ-239 Barracuda, operating in the decimeter S-band and designed to counter ground-based surveillance radar DRLO and radar aircraft of the enemy radar. Therefore, this attempt by Indian journalists to underestimate the potential of the Su-57 radar equipment came across a reinforced concrete wall of reality, due to the cardinal technological differences between the architecture of avionics “drying” and the American “Lightning”.
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  1. Mikhail Drabkin 9 September 2019 05: 27 New
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    What were the Indian experts pierced by?

    An “Indian expert” is a misunderstanding called oxymoron.
    1. Mooh 9 September 2019 05: 39 New
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      Damantsev himself is a cross between an Indian expert and an English scientist :)
      1. Beringovsky 9 September 2019 07: 29 New
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        coming finalization

        is a pearl.
      2. mitrich 9 September 2019 17: 28 New
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        Yes, Damantseva I recognize by gait. It is abstrusively ornate, but in essence, as always, everything is bad, there are enemies around.
    2. Sentinel-vs 9 September 2019 06: 04 New
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      Oksimironom ???
    3. Lipchanin 9 September 2019 07: 20 New
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      Quote: Michael Drabkin
      "Indian expert" -

      Approaching British Scientist
      1. novel66 10 September 2019 10: 47 New
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        so, the roots are the same !!! Seryoz, hi hi
  2. Blondy 9 September 2019 06: 10 New
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    Actually, the so-called STELS-technologies, I consider nothing more than an American schiz. “Radiolacin invisibility” is mainly determined by the qualities of the radar, and not the aircraft cover or its configuration. With good radar, all these stealth tricks will go "down the drain". Recall Yugoslavia and stealth F117 - "oh, the Yugoslavs turned out to have Russian radars of the wrong system."
    1. Sentinel-vs 9 September 2019 08: 00 New
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      Stealth technology or stealth technology no STELS
    2. Butchcassidy 9 September 2019 09: 05 New
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      They were then shot down by visual observation (Soviet air defense school))
      F-117 was decommissioned due to the fact that they fly like irons, and not because of reduced radar visibility.
      1. Rwmos 9 September 2019 10: 10 New
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        Not quite written off ... I would be glad, but ...
        In the meantime, the US Air Force has announced plans to dispose of the F-117, which is a rather serious problem, since the anti-radar coating is extremely toxic, and you have to work in protective kits when removing it. At the beginning of the 90's, one of the F-117 conducted an experimental coating removal, as a result of this picture appeared:

        “Toxic death” (or what, another “good” thing for this plane!).
        It is planned to dispose at an annual rate of 4. For 51, the remaining "Dwarf" is years of work on 12 ...
        1. Andrey Andreev_4 9 September 2019 10: 17 New
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          Damn, what is toxic in this coating? Plain enamel mixed with ferromagnets, nickel, carbon.
          1. Rwmos 9 September 2019 10: 20 New
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            And this is where the composition was published? But judging by the photo, they themselves understand something better
            1. Andrey Andreev_4 9 September 2019 12: 29 New
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              Yes, this has long been an "open secret"!
              The main components of the paint are known to all. Problems arise only with the durability of the coating at supersonic, but the F-117 is quite slow.
              1. Rwmos 9 September 2019 12: 32 New
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                BASIC - it is clear. But the fact is that for some substances, MPC is such that there it will turn it into a chemical weapon
                1. Andrey Andreev_4 9 September 2019 12: 39 New
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                  Well, I don’t know, there is no cyanide, no lead, no mercury ... The coatings themselves are harmful only when applied and polymerized. During operation and disposal, the damage is minimal.
                  1. Rwmos 9 September 2019 12: 58 New
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                    Arsenic coatings may well be - they have funny properties in terms of radio absorption ...
                    The coatings themselves are harmful only when applied and polymerized. During operation and disposal, the damage is minimal.

                    Well, you gave the thrush. And to clean off these coatings with God's word? Just when applied, they will fly apart less than when they are cleaned.
                    1. Andrey Andreev_4 9 September 2019 19: 49 New
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                      Are you going to brush off the paint with a brush or abrasive? Well then, really - "humanity faces death from toxins")
                      1. Rwmos 9 September 2019 20: 24 New
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                        It seems to me that solvents will not help there, so abrasive without options ... By the way, even the use of solvents will give you a spread of coverage throughout the district.
                      2. Andrey Andreev_4 10 September 2019 16: 01 New
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                        Quote: RWMos
                        It seems to me that solvents will not help there, so abrasive without options ... By the way, even the use of solvents will give you a spread of coverage throughout the district.

                        What is the spread of coverage? It's about recycling F117 !!! If the coating is a danger to wildlife, disassemble the skin of the aircraft into pieces and burn them in a furnace for the disposal of hazardous waste, as they do in the whole world. In our country, even sarin bombs were destroyed in the ovens after dismantling TNT.
                      3. Rwmos 10 September 2019 16: 06 New
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                        Excuse me, me - or you? I’m talking about the fact that, um ... Coverage, you know. it covers the bomber ... It must also be disposed of. It is toxic - not I said.
                        Again. what did you say there?
                2. Nick 10 September 2019 11: 55 New
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                  Quote: RWMos
                  Arsenic coatings may well be - they have funny properties in terms of radio absorption ...
                  The coatings themselves are harmful only when applied and polymerized. During operation and disposal, the damage is minimal.

                  Well, you gave the thrush. And to clean off these coatings with God's word? Just when applied, they will fly apart less than when they are cleaned.

                  In non-ferrous metallurgy, alloys, which include arsenic, have long been produced on an industrial scale. arsenic brass, arsenic bronze. There are technologies for the relatively safe use of arsenic compounds. Specialists know about them.
    3. nafanal 10 September 2019 23: 52 New
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      But what kind of grandmothers can be cut for this .. 12 years !!!!
  3. Pavel57 9 September 2019 11: 24 New
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    The concept of F-117 did not provide, in principle, the possibility of losses. And then a few at once. The maneuverability is zero, and support for EW aircraft was not provided - ruined the concept.
  4. MrFox 9 September 2019 16: 37 New
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    Yes, this is a well-known and chewed story. We flew along the same route, intelligence reported the departure, they were waiting for them on the route
  • Shteffan 9 September 2019 10: 22 New
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    Do not grind foolish. Learn how to suppress the air defense radars of Iraq in 91m f117 aircraft .... and in general, study the experience of their use in the database.
  • JD1979 9 September 2019 11: 43 New
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    Blonde ... How long have you signed up for Indian experts? Invisibility is determined by the radar? O_o this ... Without words ... All the scientists working on the composition of the 57th coating and developing the configuration of the airframe are simply shocked by your truths and wasted time.
    Threat. EMNIP 117 was flooded with a complex with OCH on her stealth technology drum, the main thing is that the target should be contrasted against the background.
    1. Old Skeptic 9 September 2019 17: 55 New
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      And you can not see that the meter and decimeter range radars can see 117 and stealth in general. The question is exactly - it’s difficult to direct through these channels, but missiles with GOS completely solve this problem. The appearance of the radio-phaton radar will completely return the 5th generation back to 4 ++, or even to the 4th.
  • TARSUS 9 September 2019 19: 21 New
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    It was 2019 for a year, and 99,99% of the audience don’t even know how F-117 was shot down ...
    1. JD1979 10 September 2019 09: 35 New
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      Quote: TARS
      It was 2019 for a year, and 99,99% of the audience don’t even know how F-117 was shot down ...

      It was 2019, and 99,99% of the audience did not even know how to cure banal snot, and so what? 4 versions walk around the Internet: Pechora, Kvadrat, Mig-29, and the American version itself fell. Even the authorship of the knocker has 2 versions. How was it really there? For even the "author" of the emergency landing told tales about the independent modernization of the S-125 complex, which allowed him to bring down the plane.
    2. Nick 10 September 2019 11: 59 New
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      Quote: TARS
      It was 2019 for a year, and 99,99% of the audience don’t even know how F-117 was shot down ...

      Caught on a bait made from a household microwave.
  • nafanal 10 September 2019 23: 49 New
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    The only sane comment .. I read somewhere that the KGB threw the schism to the amers .. Allegedly, the USSR was ahead of the amers in the creation of this technology .. And then they watched with laughter as the Americans stuck out their tongue to catch up with the USSR
  • Chaldon48 9 September 2019 07: 23 New
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    I don’t understand why you even need to persuade the Indian trade and military department, they want to spend money on all sorts of nonsense, let them spend it.
    1. KVU-NSVD 9 September 2019 08: 59 New
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      Quote: Chaldon48
      I don’t understand why do I need to persuade the Indian trade and military department

      Because the Indians, despite all the difficulties in negotiating with them, are rich, solvent, and with widespread requests. Moreover, they pay most often without any credit lines. For example, now we have a portfolio of orders from them for 14 billion in presidential portraits.
      1. Pilat2009 9 September 2019 17: 05 New
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        Quote: KVU-NSVD
        Because the Indians, despite all the difficulties of negotiating with them, are rich, solvent, and with widespread demands

        Just sell them later with a mark-up at the expense of R&D. And they won’t go anywhere. Nobody will sell them the 5th generation.
        1. KVU-NSVD 9 September 2019 17: 17 New
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          Quote: Pilat2009
          .No 5th generation will sell them

          Americans will sell in ten years
          1. Pilat2009 9 September 2019 17: 21 New
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            Quote: KVU-NSVD
            Americans will sell in ten years

            Well, yes, they have friendship, chewing gum. Well, in the Air Force park there is no f-16?
            1. KVU-NSVD 9 September 2019 17: 37 New
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              Quote: Pilat2009
              Well, in the Air Force fleet no f-16?

              In the case of India, it is difficult to answer a question such as “why this is not and why is this” because of the extremely complicated, lobbying and slow (in short, completely confusing for the uninitiated) decision-making process on equipping the army.
              1. Pilat2009 9 September 2019 17: 40 New
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                Quote: KVU-NSVD
                "why not this, and why there is this"

                Because 20 years ago, the f-16 was an advanced machine and the United States did not sell it to everyone.
                1. KVU-NSVD 9 September 2019 17: 43 New
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                  Quote: Pilat2009
                  Because 20 years ago the f-16 was an advanced machine

                  Yes, he is now quite advanced in the version of the last blocks.
  • Ros 56 9 September 2019 08: 49 New
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    If you have not danced with a tambourine, then where do radio invisibility come from? Huh? lol
  • Alien From 9 September 2019 08: 59 New
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    Very cool dithyrambs the author sang sushi ......
    1. vic02 9 September 2019 09: 40 New
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      These are not praises. The F-35 does not have radar side-view modules. Commentary on this for the US Air Force pilot with pictures of sectors of the radar survey. https://www.quora.com/How-do-the-US-Air-Forces-F-22-and-F-35-stealth-fighters-use-synthetic-aperture-radar-imaging-since-their- AESA-radar-mounted-in-the-nose-points-forward-but-SAR-is-side-looking-radar
      1. Alien From 9 September 2019 11: 54 New
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        Thank you, I will self-educate!)
  • Andrey Andreev_4 9 September 2019 09: 49 New
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    Thanks to the author! An article seems to be about Indians and their suspiciousness, but they managed to learn something interesting about the F-35.
  • ezdiumno ru 9 September 2019 09: 57 New
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    Hindu generals were simply thrown bribes from the USA and Europe. They are greedy for it.
    What are the specifications there?
    They will buy our Po-2 as a 6th generation fighter, the only question is the amount of bribes.
  • yehat 9 September 2019 12: 57 New
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    Quote: Blondy
    Recall Yugoslavia and the stealth F117

    there was a unique situation
    NATO planes flew along one route and they were simply ambushed.
    the Yugoslav case, although important in propaganda, is not indicative.
  • E.S. 9 September 2019 12: 59 New
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    Have you replaced Damantsev ?!
    1. Titus 9 September 2019 14: 30 New
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      In during .... he was in shock, before in the middle of the article he understood who wrote it, but today he couldn’t ....))
    2. Nick 10 September 2019 12: 03 New
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      Quote: E.S.
      Have you replaced Damantsev ?!

      I decided to rehabilitate myself. Such a maneuver. wink
  • yehat 9 September 2019 13: 07 New
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    Evgeny Damantsev, I see you are in the subject, can you tell me in general terms,
    like the Su-57 with the exchange of information?
    can the su-57 act as a reconnaissance leader supplying secret intelligence and target designation?
    1. Voyager 9 September 2019 17: 11 New
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      Details about this were not mentioned anywhere except that the avionics Su-57 was designed with the expectation of network-centric warfare. So, logically, it can.
  • yehat 9 September 2019 17: 28 New
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    Quote: Voyager
    So, logically, it can.

    you see, "maybe" has a very different meaning
    at what level is the exchange, what traffic, what range, what kind of information, etc.
    if we are talking about target designation, how is the classification of goals
    I would immediately throw pieces of 50 of questions that interest me.
    for example, su-57 flies up to the front, there the radar shows pieces of 800 targets.
    what of this how and when the plane can transmit, what can accept and in what form.
    1. Nick 10 September 2019 12: 06 New
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      Quote: yehat
      if we are talking about target designation, how is the classification of goals
      I would immediately throw pieces of 50 of questions that interest me.
      for example, su-57 flies up to the front, there the radar shows pieces of 800 targets.
      what of this how and when the plane can transmit, what can accept and in what form.

      Naive. You need to recruit a source elsewhere. And I think that is not very free. bully
    2. Umalta 10 September 2019 16: 59 New
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      Who said there will be a front ?! Thinking categories of WWII ?! Naturally, data processing and the selection of priority goals are. It was expressed, I emphasized it was expressed that there will be unmanned versions and will act in groups, both in that and in another version.
  • E.S. 9 September 2019 17: 41 New
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    Quote: yehat
    Evgeny Damantsev, I see you are in the subject, can you tell me in general terms,
    like the Su-57 with the exchange of information?
    can the su-57 act as a reconnaissance leader supplying secret intelligence and target designation?

    Whoever gives the correct answer will receive 10 years!
    1. yehat 10 September 2019 12: 14 New
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      oh come on! I think the analyst "in the subject" 70 percent can guess the ceiling of what they can put on the su-57. Just look at the official news on the topic. It's just that I am far from this and from scratch I do not want to dig.
  • Karaul14 9 September 2019 18: 06 New
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    “Smart radar plating” with distributed aperture continues to be one of the key trump cards of the multifunctional fighter of the 5 generation Su-57
    Yeah, it just could not be said to the Indian partners, they simply did not know about such a feature when they refused it))
  • Mantrid 9 September 2019 18: 44 New
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    the brahmanas are boasting, while they themselves are yelling into the pillow and biting their elbows that the FGFA have fouled, pride seems to interfere. Now invent fables about the Su-57 in order to justify their shortsightedness wassat
    1. Samodelkin. 10 September 2019 17: 45 New
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      This pride is called the State Department ...))))
  • Diviz 9 September 2019 19: 08 New
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    Yes, about the plasma around the plane, maybe this technology exists. Until the answer is no such articles will arise.
  • AKS-U 9 September 2019 20: 18 New
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    Airplane by plane. And the problem is much deeper. There are no friends. Neither Bulgaria, nor India, nor Ukraine, China sucks in its own way. Belarusians are ready to buy our oil through Poland. Today is Hurray.
    1. Nick 10 September 2019 12: 08 New
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      Quote: AKS-U
      And the problem is much deeper. There are no friends. Neither Bulgaria, nor India, nor Ukraine,

      And the Army, and the Navy? VKS to help them ... soldier
  • Al Asad 10 September 2019 01: 16 New
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    Hindus are fabulous, of course. I'm talking about their super tender. Okay, they didn’t want to buy anything Russian, but they could at least buy decent money in large quantities from the USA for that kind of money.
    1. Umalta 10 September 2019 17: 03 New
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      The USA will sell only to the most devoted satellites.
  • Spambox 10 September 2019 08: 08 New
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    Quote: Blondy
    Recall Yugoslavia and the stealth F117 - "oh, the Yugoslavs turned out to have Russian radars of the wrong system."

    And the Americans turned out to be "lazy" pilots flying over the war zone, on the same route every day)
  • pafegosoff 10 September 2019 09: 10 New
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    Miser pays twice. Well, the kickbacks of the Indians as a tip for the Americans - for granted ...
    Well, remember the Gandhi family. It can be seen that Indira and Rajiv were cunning.
    Now, the Indians, being potential enemies of the Chinese, climbed under the Europeans and Americans. However, given the wildest stratification of the castes, their leaders still honor the sagib colonialists ...
    1. Private-K 14 September 2019 09: 19 New
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      And why not honor the white sagibs who did unite India into a single state? Sorry - in three states. But anyway.
  • E.S. 10 September 2019 12: 18 New
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    Quote: yehat
    oh come on! I think the analyst "in the subject" 70 percent can guess the ceiling of what they can put on the su-57. Just look at the official news on the topic. It's just that I am far from this and from scratch I do not want to dig.

    You will get along with your neighbor, and experience shows that to draw the right conclusions from official information, "not only everyone can, few can."
  • yehat 10 September 2019 15: 56 New
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    Quote: Mantrid
    in order to justify their shortsightedness

    their shortsightedness does not make it possible to realize what it is time to howl.
  • yehat 10 September 2019 17: 04 New
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    Quote: Umalta
    Spoken out

    Yes of course. And Khrushchev even called the date when communism came.
    You know, you can hang any noodles, and then modestly indicate the implementation period of 2080 and proudly report that everything is going according to plan.
    Remember, we already have programs until 2050)))
    in fact, the industry of the Russian Federation is simply not yet ready for what has been voiced.
    But the government is even less ready, because such work requires investment, not advertising.
  • Samodelkin. 10 September 2019 17: 43 New
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    Dear author ...... First, the wings do not have socks and heels) There are only front and rear edges ....... And second, the azimuth angle, what are you talking about?))))) But if the plane will be directed nose south or west, what then will the azimuth be?))))) Is there a working angle or viewing angle of the station. Azimuthal is cool)))
    1. Andrey Andreev_4 10 September 2019 19: 17 New
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      The author is right and competent! The wing of the aircraft has a toe and the station has an azimuth angle, as well as an elevation angle. The angles are tied to the construction axis of the aircraft and are limited by the viewing angle.
  • svit55 10 September 2019 21: 16 New
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    Quote: Nick
    And the Army, and the Navy? VKS to help them ...

    VKS! And the Army and Navy help them ...)))))
  • Russian Central Asian 11 September 2019 00: 09 New
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    Well, when you try to establish a joint venture with the gypsies, that's how it usually happens laughing Tamerlan is not on them, so he knew how to do things right with gypsies laughing
  • Cynic 11 September 2019 16: 35 New
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    Solution from the series: Spite frostbitten ears ...
    Well, journalists are trying to tell us all that this does not hurt, and that’s the way to do it ...
  • Pilat2009 12 September 2019 07: 46 New
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    Quote: DiViZ
    Yes, about the plasma around the plane, maybe this technology exists. Until the answer is no such articles will arise.

    M. Kalashnikov- "Broken sword of the empire" in this book writes about the achievements of the Soviet military-industrial complex and mentions plasma
  • Rplay 13 September 2019 18: 28 New
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    What the hell is that written here?
  • Diverter 17 September 2019 10: 05 New
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    Indians in almost every tender / project organize "dances with a tambourine", and sometimes they fly or buy more by the result. Well, the people here are as they are. I think that they will buy Su 57E for any, since no one else will sell it to them. China will not sell because Pakistan in friends and mattresses will not sell