Shown is a visibility-reducing grille in the air intake of a Su-57 fighter


Photos with the design features of the air intake of the fifth generation Su-57 fighter have appeared on the network. It is noted that this is the first "official" large-scale demonstration of this structural element of a low-visibility aircraft.


The photo shows a special KRR grating - (coaxial radial grating).

We are talking about a special design that allows you to reduce the "radar" signature of a combat aircraft. It is specially placed in its air intake. In this case, the CRR itself (radar blocker) is made of radio-absorbing material.

Earlier, there was a controversy about the air intakes of the Su-57. They consisted in the following: will Russian aircraft designers use the experience of their American colleagues from Lockheed Martin, who created the S-channel, leading to a decrease in visibility? This option excludes the so-called direct frontal transmission of LCDs (engine compressor blades). Technology the Americans implemented it on their F-22.

If the new photo corresponds to the final version of the Su-57 model, then we can state that the dispute is over: Russian aircraft designers did not bother with the S-channel. Instead, the aforementioned coaxial-radial array is used as a radar blocker.
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  1. Dmitry Donskoy Offline Dmitry Donskoy
    Dmitry Donskoy (Dmitry Donskoy) 7 December 2020 15: 11
    +3
    Cool news. Excellent performance and beauty. Pride overflows simply
  2. Object.F7 Offline Object.F7
    Object.F7 (Object.F7 TV) 7 December 2020 17: 01
    +3
    For so many years they have been praying on s-channels, but here they are so happy. Minus argument. Moreover, this treacherous grille, in theory, can still save from a bad bird, in the sense of reducing the risk of an engine fire. Probably Russian hackers stole this technology from the Americans - it was in the same folder with hypersonic
  3. Cudgel Offline Cudgel
    Cudgel (Dubina) 8 December 2020 00: 28
    -6
    In the early 2000s, motorists hung CDs on the windshield, thinking that it was helping from the laser radars of the traffic police. It seems to be the same here. Even in the cockpit, hang a CD and an iconostasis, and then it will definitely not be visible to enemy radars.
    It is clear that they were too clever with the plane, and alas, no way to redesign, so all that remains is to rely on CDs and clips.
    1. The comment was deleted.
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    2. rotkiv04 Offline rotkiv04
      rotkiv04 (Victor) 8 December 2020 18: 09
      0
      Ha-Ha, so you are one of those eccentrics who hung up these CDs? Your association is, of course, non-trivial, you'd better take off the pot from your head or have already grown
      1. Cudgel Offline Cudgel
        Cudgel (Dubina) 8 December 2020 18: 17
        -2
        This is for the putriots, for the CD car, for the air intake grille, and for the kibina the braces! They can't make a normal fighter, so they come up with all sorts of garbage.
        1. rotkiv04 Offline rotkiv04
          rotkiv04 (Victor) 8 December 2020 18: 42
          +1
          what a mess in your head ...
          1. Cudgel Offline Cudgel
            Cudgel (Dubina) 8 December 2020 18: 53
            -2
            All right, why invent something, the air intake grille and order - the plane is invisible. For, putriots will do, but more is not needed, all the same, there will be about 20 aircraft at most.
        2. ODRAP Offline ODRAP
          ODRAP (Alexey) 9 December 2020 03: 03
          -3
          They say that the red brakes in the headlights added to Moskvich at least five mares. Into the Bavarians' reduced engine ...
    3. ODRAP Offline ODRAP
      ODRAP (Alexey) 9 December 2020 03: 01
      -2
      Earlier, in the 90s ... the oncoming cars blinded, there were times ...
      I then, I remember, leaned back from the Long-Range Aviation, so from old memory, I blinded the anti-radar, from a powerful emitter and waveguide elements ..... It worked. Until they politely conveyed to me the opinion that it was ayyayy, and in general. I heeded. :)))
      1. Cudgel Offline Cudgel
        Cudgel (Dubina) 9 December 2020 11: 43
        0
        In our company, in the late 90s, the technical director, on the Gunn diode, piled such a radar detector, although its power was small because, without an amplifier. Therefore, the traffic police did not suppress the radars, but simply dabbled. There is a stream of cars, he pressed a button on all cars, the radar detector worked and everything was on the brakes!
        Regarding the article, they wrote earlier that some kind of miracle agent was applied to the compressor blades so that they would not "shine" on the radar screen, now the progress has gone further, the grill has been installed!
        1. ODRAP Offline ODRAP
          ODRAP (Alexey) 9 December 2020 23: 38
          -1
          The grill is actually not bad. But she, nasc. I understand that for a certain frequency it is hardly noticeable. AFAR, however, knows how to rebuild. I remember the movie "Predator", the moment where the Hunter adjusts his vision for. the desired spectrum. And he sees the riders at a glance.
          I remembered the old, from the Rab times. They wrote that unobtrusive, you can detect long-wave, but only the direction. They already boasted that they had spotted it with a Container, like, somewhere over Iran. No height, no range ...
          And also, I remember a publication where a Soviet meteorologist showed how he detected invisibility from a satellite, based on disturbances in the atmosphere.
          "Injected on indirect" (c) :))
  4. zz811 Offline zz811
    zz811 (Vlad Pervovich) 8 December 2020 18: 31
    0
    Quote: Cudgel
    In the early 2000s, motorists hung CDs on the windshield, thinking that it was helping from the laser radars of the traffic police. It seems to be the same here. Even in the cockpit, hang a CD and an iconostasis, and then it will definitely not be visible to enemy radars.
    It is clear that they were too clever with the plane, and alas, no way to redesign, so all that remains is to rely on CDs and clips.

    nothing, buy Neptune and defeat everyone !!
  5. ODRAP Offline ODRAP
    ODRAP (Alexey) 9 December 2020 02: 57
    -2
    This is victory.
    How do you like that, fraudster Elon Musk ?!