Military Review

What does the Swedish Navy stealth ship look like on the radar screen

141

A screenshot of the onboard radar of one of the Swedish ships appeared at the time of the survey, about 250-300 m from the Visby corvette on the network. We are talking about the type of corvettes that are being built to replace the existing Gothenburg warships in the Swedish naval forces. Visby corvettes belong to stealth ships, and they are often called the first ships in the world to be completely built using this technology.


A photo of the screen of the Visby radar and corvette was published on the Reddit media network by u / Moresail.

The radar station displays an image that would correspond to a small fishing motor boat or even a buoy on the surface of the water. At the same time, the yacht, which at that moment was not far from the one taking the picture, is shown to be a much larger "identification spot".

The user notes that the airborne radar still allows you to determine the speed and direction of movement of the object, which is a Visby corvette. However, it is added that in this situation Visby hardly used the so-called “combat” stealth configuration (system) in order for the radar to remain completely unnoticed - otherwise this could lead to a collision with civilian ships in the bay.

What does the Swedish Navy stealth ship look like on the radar screen

For reference: the total displacement of the Visby corvette is 670 tons, the longest is 72,7 m, and the draft is 2,4 m. It has eight RBS-15 anti-ship missiles. Maximum speed - up to 35 knots (about 65 km / h).

Russia has its own analogue of modular design corvettes - these are patrol ships of the 22160 project. At the moment, there are two such ships in the Russian Navy: “Vasily Bykov” and “Dmitry Rogachev” (both - the Black Sea Fleet). At the same time, their total displacement is according to 1700 tons. In terms of autonomy, these corvettes are superior even to individual frigates.
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  1. ss-n-22
    ss-n-22 9 December 2019 11: 18
    +14
    On a yacht, a corner reflector can hang on the mast.
    1. Gray brother
      Gray brother 9 December 2019 11: 32
      +3
      Quote: ss-n-22
      On a yacht, a corner reflector can hang on the mast.

      Seagulls on the antenna shit.
      1. Vladimir16
        Vladimir16 9 December 2019 12: 51
        +23
        Mattresses complain about the weather talking about their stealth penguins. The dust particles are blown away. Hangars are building.

        Why didn’t they turn to the Swedish sailors? what request
        The Swedes over five-story buildings disguise, and do not blow into the mustache.
        Only seagulls unmask Swedish ships with their shit. wassat

        Crazed on stealth people.

        On the other hand, let them think that they are invisible.
        As the child closes his eyes with his palm, he is sure that he is not visible. wink
        1. Private-K
          Private-K 10 December 2019 09: 47
          +3
          But I don’t know how to properly evaluate this corvette.
          It looks nice, modern, promising. (In the future, all NKs strive to take shape like Visby.)
          Confusingly, "The body of the corvette is made of a hybrid composite material (sandwich construction) - a polyvinyl chloride middle layer and outer layers of carbon fiber reinforced plastic on a vinyl ester binder." Is the body stiff enough - not to break on the wave? Will the coating start to fall off like on airplanes?
          Well, his weapons are weak. Only on the 5th building did the corvette give air defense systems medium. range and anti-ship missiles (70 km) ...
          I would like to see a detailed assessment (the description is also very detailed on Wikipedia) of the project from naval specialists.
          Although it is clear that RCC with conventional radar guidance does not take it - there is nothing to take. Need GOS with thermal imager, TV or laser. Already the Swedes profit.
        2. 3danimal
          3danimal 1 January 2020 03: 05
          +1
          Our air and ship designers, following your logic, also fall into childhood)
      2. Shurik70
        Shurik70 9 December 2019 12: 54
        +18
        onboard radar of one of the ships of Sweden

        The question is what type and year of production of the radar.
        The Swedish Navy has ships manufactured in 1986. Not quite old, of course, but radars have stepped forward a lot, precisely because of the fight against "stealth".
        What year the radar, what wavelengths it uses, is not said. And is it important.
        1. Alex paritsky
          Alex paritsky 9 December 2019 16: 12
          -1
          And they, fools, think so!
        2. Awaz
          Awaz 9 December 2019 18: 20
          +5
          The radar is most likely some sort of fishing schooner or seiner ...
      3. The comment was deleted.
    2. cniza
      cniza 9 December 2019 11: 33
      +10
      It can’t, but it must be ...
      1. zlinn
        zlinn 9 December 2019 11: 47
        +7
        and he must be there, as on the corvette, without him
        1. cniza
          cniza 9 December 2019 11: 49
          +6
          Naturally, otherwise, with such a crowd as in the Baltic, and around, there would be constant "accidents" ...
      2. Monar
        Monar 9 December 2019 11: 50
        +4
        Really. Did not know. Yes, I saw a bunch of photos of these reflectors on a citizen. I didn’t think about it.
        Thanks for the information.
    3. Antiliberast
      Antiliberast 9 December 2019 12: 27
      -2
      Quote: ss-n-22
      On a yacht, a corner reflector can hang on the mast.

      So, if there is a yacht of Abramovich, then without a reflector ....... laughing
    4. Civil
      Civil 9 December 2019 12: 35
      +6
      Well, in which case, they will shoot at everything from a beer can to a tanker. God will sort everyone.
      1. 3danimal
        3danimal 1 January 2020 03: 07
        +1
        There isn’t enough missiles (on the ship) - to shoot everything.
    5. svp67
      svp67 9 December 2019 13: 39
      +2
      Quote: ss-n-22
      On a yacht, a corner reflector can hang on the mast.

      Not necessarily, maybe just a bucket))), and it’s just not clear what type and purpose of this radar
    6. Oden280
      Oden280 9 December 2019 17: 48
      0
      And in what projection the ship was irradiated. In the nose or on the side?
    7. _M_
      _M_ 10 December 2019 01: 06
      +3
      Excuse me, where do you see the yacht?
  2. Cananecat
    Cananecat 9 December 2019 11: 24
    +9
    There is no reference to the picture, and on the radar screen far from 200-300 m range is indicated ... or how many there are in cable ...
    1. Gray brother
      Gray brother 9 December 2019 11: 35
      +28
      Quote: Canecat
      There is no reference to the picture, and on the radar screen far from 200-300 m range is indicated ... or how many there are in cable ...

      The coastline is observed visually, but for some reason it is not on the screen. Even I suspect this is a hat.
      But a large mark just to the right for some reason is not visually observed.

      See the question:
      1. Harry.km
        Harry.km 9 December 2019 12: 24
        0
        Quote: Gray Brother
        The coastline is observed visually, but for some reason it is not on the screen.

        Maaalenky piece, something remotely resembling the coastline is (lower left corner of the photo). But where is the same yacht visually ???
      2. Simargl
        Simargl 9 December 2019 15: 16
        +1
        Quote: Gray Brother
        But a large mark just to the right for some reason is not visually observed.
        Another joke: a "large mark" invisible to the naked eye glows white on a blue background, and a type-barge, visible to the naked eye, is a colored mark ...
        ... I suspect that they want to trick us by giving out the reflection of the button as the mark of that barge.
    2. Mavrikiy
      Mavrikiy 9 December 2019 11: 39
      +15
      Quote: Canecat
      There is no reference to the picture, and on the radar screen far from 200-300 m range is indicated ... or how many there are in cable ...

      Also the first question was, what is the radar field with a radius of 1 km? “I don’t believe”, learn to lie well, on a large scale, gentlemen, Swedes. Go to Velikokram School.
      1. knn54
        knn54 9 December 2019 12: 01
        +4
        As someone correctly noted, ships / planes need "invisibility" so that the authorities do not know where they are "hanging around" ...
      2. The comment was deleted.
        1. thinker
          thinker 9 December 2019 13: 55
          +11
          Turgenev never said or wrote anything like that.
          Information war: Liars About Russia

          http://www.politonline.ru/provocation/1562.html
        2. Gray brother
          Gray brother 9 December 2019 15: 33
          +3
          Quote: Dominus
          "Russian is the greatest and most liar liar in the whole world" - the great Russian writer Ivan Turgenev.

          Apply ice.
          And, yes, see the question: https://dom-knig.com/read_197988-18
    3. Dimonk
      Dimonk 9 December 2019 14: 43
      0
      And besides, that on the photo of the yacht is not observed feel Another article far-fetched hi
      1. Marconi41
        Marconi41 9 December 2019 16: 03
        +1
        Quote: DimonK
        And besides, that on the photo of the yacht is not observed feel Another article far-fetched hi

        Yes, even a yacht has nothing to do with it. Here the question is different: how the corvette is located in relation to this radar, and at the same time it is interesting how the mark of the target will look when the corvette turns side to the radar, and the pitching will make its own corrections.
  3. The comment was deleted.
  4. bessmertniy
    bessmertniy 9 December 2019 11: 27
    +2
    With the activity of shipping in the Baltic Sea, the full invisible configuration may not be particularly used, since the risk of collisions will become higher. Especially if this invisible chulr stumbles upon another invisible. wink
  5. rotmistr60
    rotmistr60 9 December 2019 11: 29
    +3
    A screenshot of the onboard radar of one of the Swedish ships appeared at the time of the survey, about 250-300 m from the corvette
    A lot of things appear on the network. And who will guarantee that the backlight really is a corvette, not a fishing boat? It will appear in neutral waters off our shores, and then it will be possible to verify really what and how it reflects.
    1. bouncyhunter
      bouncyhunter 9 December 2019 11: 40
      +7
      gene hi
      Nowadays, fake news and computer technology can be blinded by a lot of things. And to believe everything in a row is not entirely smart.
    2. Crimean partisan 1974
      Crimean partisan 1974 9 December 2019 17: 15
      0
      And who will give a guarantee that a corvette is really in the light, and not a fishing boat? ...... there is such a feature on warships as an acoustic post. If the acoustician is not complete, he will distinguish an economical "takh-takh-takh" from a howling YEAR or YEAR, elementary watson
  6. The leader of the Redskins
    The leader of the Redskins 9 December 2019 11: 32
    +1
    Just recently I read about this controversial ship. Hats off to the Swedes about stealth, but I immediately had questions about the resistance of the ship's materials to fire. Sheffield has also been lightened by newfangled magnesium alloys ...
    1. Alexey RA
      Alexey RA 9 December 2019 17: 57
      +2
      Quote: Leader of the Redskins
      Sheffield has also been lightened by newfangled magnesium alloys ...

      Was not. Just "Sheffield" and the same type EM "Type 42" were all steel.
      Light alloys were used in the design of the frigates that preceded them - all sorts of "Ardent" and "Antilope" .. And it was based on the results of their operation (and the operation of similar ships abroad) that the decision was made to return to all-steel hulls and superstructures.
      The Type 42 had a different problem: plastic finishing and sealing of cable routes in real conditions of combat defeat turned out to be combustible. Moreover, they burned with the release of caustic black smoke, which made the BZZ impossible (the emergency parties that arrived from other ships could not even get inside - the orientation was lost immediately).
  7. The comment was deleted.
  8. Horon
    Horon 9 December 2019 11: 39
    +1
    Maybe ... or maybe not! Many questions that are unlikely, except for experts, can anyone answer.
    1. Horon
      Horon 9 December 2019 11: 57
      +9
      I re-read it again. 250-300 m ??? In my opinion, there is much greater distance, otherwise then the corvette itself should not exceed the size of a pleasure yacht! The 72 meter ship at a distance of 300 meters looks much larger than in the photo.
      Quote: Gray Brother

      Even I suspect this is a hat.

      I agree!
      1. Kirill Dou
        Kirill Dou 9 December 2019 13: 22
        -1
        The distance in the original article is indicated in 1,5 miles.
        1. Horon
          Horon 9 December 2019 13: 42
          +2
          Thank you We have already found out below. hi
  9. loki565
    loki565 9 December 2019 11: 42
    +16
    And why the yachts are not visible in the photo, maybe there is a barge going, or an island in general. Two photos stuck together from the bulldozer, I can do that too)))

    1. Avior
      Avior 9 December 2019 12: 01
      +9
      I caught you on a fake smile
      on the radar screen a review of the air, rather than surface, situation at the air traffic control unit, and the air traffic controller smokes
      and to finally expose you smile , I’ll bring what few saw - the last episode of this horrific and chilling story of the landing of the 747 Broiler airliner

      hi
      1. loki565
        loki565 9 December 2019 12: 05
        +2
        Ha ha ha, I thought they won’t remember him)))
        1. Andrew3000
          Andrew3000 10 December 2019 01: 00
          +3
          And I liked how the authors in the 90s prophesied September 11, 2001. Watch from 3:05
      2. Andrew3000
        Andrew3000 9 December 2019 21: 08
        +1
        And I liked the episode where the authors prophesied the 11 September of 2001 of the year. Watch from 3: 05
        1. SASHA OLD
          SASHA OLD 10 December 2019 06: 18
          0
          Quote: Andrew3000
          And I liked the episode where the authors prophesied the 11 September of 2001 of the year. Watch from 3: 05

          ! What a twist!
          they knew something ...
      3. SASHA OLD
        SASHA OLD 10 December 2019 06: 15
        0
        Quote: Avior
        I caught you on a fake smile
        on the radar screen a review of the air, rather than surface, situation at the air traffic control unit, and the air traffic controller smokes
        and to finally expose you smile , I’ll bring what few saw - the last episode of this horrific and chilling story of the landing of the 747 Broiler airliner

        hi

        O - B - A - L - D - E - T - L! ! !
        I did not know that there is a final series!
        finally I saw the finale, after so many years ..!
      4. kamikaze
        kamikaze 12 December 2019 01: 41
        0
        laughing laughing laughing good calombur was
    2. Ross xnumx
      Ross xnumx 9 December 2019 12: 09
      +2
      Quote: loki565
      And why the yachts are not visible in the photo, maybe there is a barge going, or an island in general.

      The most realistic comparison is when there are two ships of the same displacement (normal and "stealth") .. And so:

      lol
    3. Monar
      Monar 9 December 2019 12: 39
      +1
      laughing
      Van Helsing in the last photo looking for a submarine?
    4. Simargl
      Simargl 9 December 2019 15: 18
      0
      Quote: loki565
      i can do that too
      Discover the location of the stealth yachts?
  10. voyaka uh
    voyaka uh 9 December 2019 11: 45
    +1
    When this was written about Zumolit, no one believed. The fishermen took the huge ship on their radars for the neighboring schooner. And they were frightened when they visually discovered a multi-meter wall near their little vessel.
    But "stealth" is a drank of the budget laughing
    1. Kirill Dou
      Kirill Dou 9 December 2019 12: 05
      -14
      Moreover, the local commentators favorite excuse - they say, the photo is fake and all that)) As always. And then yes, a mantra about a cut)
      1. Victorio
        Victorio 9 December 2019 13: 00
        +4
        Quote: Kirill Dou
        Moreover, the local commentators favorite excuse - they say, the photo is fake and all that)) As always. And then yes, a mantra about a cut)

        ====
        in the picture the distance in 200-300 m? if yes, then to your optometrist
        1. Kirill Dou
          Kirill Dou 9 December 2019 13: 04
          -6
          And to think that this is exactly the mistake in the article, and we are talking about 2000-3000 m - is it not fate? In the original article by the Swedish user, the distance 1,5 M is indicated - miles (nautical). Convert it to kilometers and you will be happy.
          1. Victorio
            Victorio 9 December 2019 13: 09
            +5
            Quote: Kirill Dou
            And to think that this is exactly the mistake in the article, and we are talking about 2000-3000 m - is it not fate? In the original article by the Swedish user, the distance 1,5 M is indicated - miles (nautical). Convert it to kilometers and you will be happy.

            ===
            here you first think of how to write this: Moreover, local commentators favorite excuse - Like, a fake photo and all that)) As always. And then yes, a mantra about a cut)
            1. Kirill Dou
              Kirill Dou 9 December 2019 13: 15
              -10
              So it was not the article that was blamed, but the photo itself.
      2. UserGun
        UserGun 9 December 2019 13: 37
        -6
        So they go here to work! ))) (or maybe they really work ... wink )
    2. KCA
      KCA 9 December 2019 12: 22
      +11
      That's for sure, because on warships there are exactly the same radars as on fishing boats, definitely - Zamvolt Thunderstorm Morey and Okeyanov!
      1. Avior
        Avior 9 December 2019 12: 53
        +4
        but the distance is not 1,5 miles, agree.
    3. Simargl
      Simargl 9 December 2019 15: 21
      +1
      Quote: voyaka uh
      The fishermen took the huge ship on their radars for the neighboring schooner.
      Well, fishermen - they're hunters for stealth launches! Those. can we safely say that the radar on a fishing schooner is not suitable for "catching" "invisible"? Strange ...
    4. Alexey RA
      Alexey RA 9 December 2019 18: 03
      +3
      Quote: voyaka uh
      When this was written about Zumolit, no one believed. The fishermen took the huge ship on their radars for the neighboring schooner. And they were frightened when they visually discovered a multi-meter wall near their little vessel.
      But "stealth" is a drank of the budget

      The problem is that stealth is good only in combination with network-centricity and a passive mode of operation. The very first launch of the ship on the air immediately resets stealth. It is enough to recall the fate of the Libyan MRC in the 80's, which had long and successfully pretended to be a seiner, but was classified and struck after the very first inclusion of the airborne radar.
    5. bk316
      bk316 9 December 2019 20: 30
      +2
      When this was written about Zumolit, no one believed.

      Alexei, have you ever seen the screen of a ship's navigation radar.
      What do EDCs know?
      Something in this photo is a completely different picture ....
  11. Atenon
    Atenon 9 December 2019 11: 47
    +12
    here I am standing next to him
    1. Svarog51
      Svarog51 10 December 2019 03: 23
      +8
      Victor hi On new smarts, even vampires in the photo are obtained, but the mirror "does not see" them. lol There is nothing on the radar behind you. yes good drinks
  12. We_smart
    We_smart 9 December 2019 11: 57
    +10
    The radar screen shot seemed strange, because now each radar draws an EDC.
    1. Gnefredov
      Gnefredov 9 December 2019 14: 41
      +3
      Let's just say, not everyone but most;)
      PS rightly noticed good
    2. bk316
      bk316 9 December 2019 20: 27
      +3
      So I think now even the golem civilian rheinmarin EDC shows.
      And how now, without this, everyone just walks like this, otherwise there will be continuous clashes.
      1. Svarog51
        Svarog51 10 December 2019 03: 28
        +8
        Vladimir hi So I can't understand if he (ship / plane) is not visible on the radar, well, okay, from the enemy. And on "your" too? How do dispatch services work? request
        1. bk316
          bk316 10 December 2019 12: 49
          +3
          Greetings. Everything is very simple for vessels with a certain tonnage, there must be an EPG no less than the regulatory one, I don’t remember which one I can find. Those with fewer angular reflectors simply attach to the superstructure. When it’s necessary they take it off. There was a project with transponders like sakmeletov, many who put, but not all. All this is regulated by SOLAS-74. It also seems to me that the article is fake.
          This is how the navigation radar screen now looks.


          You can of course remove the card and disable AIS, but who needs it?
          1. Daddy pig
            Daddy pig 10 December 2019 18: 33
            0
            This is an ECDIS "electronic map" screen with a "radar image" superimposed on it, the so-called "radar overlay". Info from electronic maps can also be superimposed on the radar screen, but looks a little different.
            1. bk316
              bk316 10 December 2019 19: 11
              +2
              This is the ECDIS "electronic map" screen with the "image" taken from the radar superimposed on it,

              I know laughing
              1. Svarog51
                Svarog51 10 December 2019 20: 07
                +7
                I also asked this because airplanes with lenses fly. And if they are dropped? After all, they will play out with invisibility. Someone shibanet. If a "beacon" is moving at the speed of a destroyer on the radar, then this is not a "beacon", is it? It's just "but everything is calm at the cemetery." Plus, hitting the "buoy" is a pretext for war. Don't they understand?
              2. Daddy pig
                Daddy pig 11 December 2019 01: 20
                0
                Well, all the more, no need to mislead the ignorant)
      2. Daddy pig
        Daddy pig 10 December 2019 18: 41
        0
        these are all customizable elements, in general, all ships are now equipped with AIS which perfectly shows all the "elements of target movement" regardless of the weather and the visibility of the "target" on the radar, therefore ARPA is most often disabled and uses data from AIS for discrepancy
        1. bk316
          bk316 10 December 2019 19: 12
          +3
          in general, all ships are now equipped with AIS

          Well, not all, but most. Or maybe they go with AIS disabled?
          I've traveled a bit with such equipment laughing
          1. Svarog51
            Svarog51 10 December 2019 20: 15
            +8
            It's like here, in. So I do not like talking with anonymous. Well, not a dog, to nickname? Albeit fictional, but NAME. In the sea and in the air - the same. You are hiding, but visible - already suspicious. And given the situation in the world - a provocation. Will they pay it off? Well, what will it lead to? And he could not hide and a mess in the world added.
            1. Daddy pig
              Daddy pig 11 December 2019 01: 30
              0
              there is such a thing AIS (automatic identification system) you turn it on, and the vessel is visible regardless of the radar, a mark appears where and from where and why it goes
              and also see data from other vessels
              therefore, when a warship, even if it is super-stealth, is on the transition not "in execution", then it (AIS) activates it, and it becomes perfectly visible to all aircraft and stealth ships
              and when he begins to carry out a combat mission, turns off, and turns into invisibility
              1. bk316
                bk316 11 December 2019 11: 56
                0
                there is such a thing AIS

                Yes, write everything correctly, only warriors do not always include it.
                A first-person story.
                I’m walking on GB, navigation on such a thing with which I sent a screen, twilight, speed of km for 50.
                In this place, GB 300 meters wide and trees along the banks.
                We go almost under the shore, about 40 meters away. I don’t manage, I just stand next to him and chatting with the captain.

                And here our version of the Grad Sviyazhsk stealth is at anchor without lights right on the course.
                AIS is turned off, there is no mark on the map, there is a tiny speck on the radar, visually merges completely with the shore, some minesweeper was standing well next to him there is a mark on the radar (obviously corners), and there is no mark on the AIS either. We barely dodged. After this, I decided to put a floodlight on the boat to help the rivers better than the radar.
                In general, they did the right thing that they are doing a new base for the Caspian flotilla; these GB walks will not lead to anything good. And if that just lock the ships at the base.
          2. Daddy pig
            Daddy pig 11 December 2019 01: 18
            +1
            actually, even fishermen, thanks to Neptune, were forced to set
            and off, have the right to walk, just the same warriors
    3. S-400
      S-400 10 December 2019 13: 41
      0
      With what joy? If this is a stupid radar such as Shirpotrebovsky's "Aikom", which does not have a primary source, does not have a secondary, a clean review with the shipment of raw video to the IKO? And the hike here is a snapshot from the ICO of just such a fart, even the display is primitive, as if a programmer from the 90s wrote, if it is not an analog tube at all :) :)
    4. S-400
      S-400 10 December 2019 13: 45
      0
      With what joy? If this is a stupid radar such as Shirpotrebovsky's "Aikom", which does not have a primary source, does not have a secondary, a clean review with the shipment of raw video to the IKO? And the hike here is a snapshot from the ICO of just such a fart, even the display is primitive, as if a programmer from the 90s wrote, if it is not an analog tube at all :) :)
  13. Parsec
    Parsec 9 December 2019 12: 09
    +18
    What always touched VO was the zeal of commentators to speak out on a question in which neither ear nor snout, especially former compatriots, gray with aplomb, mix and shake.
    Honestly, who worked with the radar?
    But the legends about fishermen from the bush, at the level of religious apocrypha, with the same degree of faith and attempts to convince themselves and others.
    What kind of picture, where and when it was taken, why the visual and radar images do not coincide, what kind of radar it is - and do not care, they say that Visby is invisible, or Zamvolt looks like a fishing boat on the screen ...
    And the discussion started, like the X-wing in star wars, like the F-35, like the invisible Zamolt.
    1. Avior
      Avior 9 December 2019 12: 39
      -8
      register and ask the author of the picture about the details
      1. voyaka uh
        voyaka uh 9 December 2019 15: 29
        -3
        Do not argue with him ever.
        This is Parsec.
        He knows everything, only he can’t say.
        Funny person. laughing
        1. Dart
          Dart 9 December 2019 17: 05
          +1
          you then blame ... for every scream you are also special, as I look ...
          1. voyaka uh
            voyaka uh 9 December 2019 18: 21
            -2
            But I still speak out.
            Although sometimes I am mistaken.
            When the user himself is silent, but criticizes, this is another.
    2. SASHA OLD
      SASHA OLD 10 December 2019 06: 27
      0
      Quote: Parsec
      What always touched VO was the zeal of commentators to speak out on a question in which neither ear nor snout, especially former compatriots, gray with aplomb, mix and shake.
      Honestly, who worked with the radar?
      But the legends about fishermen from the bush, at the level of religious apocrypha, with the same degree of faith and attempts to convince themselves and others.
      What kind of picture, where and when it was taken, why the visual and radar images do not coincide, what kind of radar it is - and do not care, they say that Visby is invisible, or Zamvolt looks like a fishing boat on the screen ...
      And the discussion started, like the X-wing in star wars, like the F-35, like the invisible Zamolt.

      I worked with radar, "Nayada-5" (several months), "Nayada-5MP" (one year), "PSNR-5" (two years), I can’t say anything smart from the picture, except that such a CRT is unfamiliar to me and I do not know what kind of radar it is, the very same scan is one-to-one like on "Naiad-5" - but they are all the same on radars with CRT.
      Here I "walked" on the comments, looking for someone clever to say about the radar
  14. Avior
    Avior 9 December 2019 12: 16
    -1
    comment on the image of the author
    Demonstration of Visby corvette's stealth 1.5M away on merchant marine x-band radar. Echo 0.75M on our starboard bow is another cargo ship anchored next to us

    something 250-300 m is not visible, and the yachts too
    another cargo ship

    this is not a yacht
    https://www.reddit.com/r/navy/duplicates/e34k6w/demonstration_of_visby_corvettes_stealth_15m_away/
    1. Horon
      Horon 9 December 2019 12: 29
      +1
      A demonstration of the secrecy of Corvette Visby at a distance of 1,5 M on the X-range commercial sea radar

      And what does 1,5 M mean? Meters, kilometers, wind speeds in mah?
      1. Flooding
        Flooding 9 December 2019 12: 34
        +3
        Miles (miles) naturally
        1. Horon
          Horon 9 December 2019 12: 38
          +3
          hi Thank you This distance seems to be true.
          1. Flooding
            Flooding 9 December 2019 12: 39
            +3
            Just one toe lost on the road. 2500-3000 meters.
            Journalists do not.
      2. Avior
        Avior 9 December 2019 12: 35
        +1
        maybe miles
        but not sure
        1. Horon
          Horon 9 December 2019 12: 39
          +1
          hi Thanks! The habit of metric measures failed!
          1. Svarog51
            Svarog51 10 December 2019 03: 35
            +8
            It’s strange. The carrier should be familiar with cables, miles, and knots through Leto. Profession obliges. wink hi
  15. Parsec
    Parsec 9 December 2019 12: 16
    +5
    Wow, so Visby also goes under the angle 4 / 4, substituting the maximum area, and with 250 m (!) Such a mark.
    We disperse, they tried to deceive us.
    1. Kirill Dou
      Kirill Dou 9 December 2019 13: 06
      +5
      and with 250 m (!) such a mark.
      - the distance 1,5М (miles) is indicated in the original source. So if you really wanted to deceive you, then the author of the article on VO.
  16. Yrec
    Yrec 9 December 2019 12: 22
    +4
    I do not see the yacht between the corvette and the radar.
  17. Vkd dvk
    Vkd dvk 9 December 2019 12: 26
    0
    Quote: Leader of the Redskins
    Just recently I read about this controversial ship. Hats off to the Swedes about stealth, but I immediately had questions about the resistance of the ship's materials to fire. Sheffield has also been lightened by newfangled magnesium alloys ...

    Well, of course, real gentlemen, playing cards, never lie. Put on your hat, catch a cold. And think, are you a sucker?
  18. tlauicol
    tlauicol 9 December 2019 12: 44
    0
    Sluggish excuses in the comments can only be compared with the last paragraph of the article
  19. Operator
    Operator 9 December 2019 12: 59
    +6
    Swedish user u / Moresail from Reddit has obviously abused Karlsson potato vodka laughing

    The photo clearly shows that the closest floating craft to the commercial vessel is exactly the Visby corvette, which also corresponds to the closest and largest mark on the ship's radar screen.

    The notorious yacht, not visible in the photo, is located at a great distance from the commercial vessel and corresponds to a small mark on the screen of the ship's radar, circled in red.
    1. Kirill Dou
      Kirill Dou 9 December 2019 13: 31
      -2
      In the radar photo, the large mark is located along, while in the photo the ship is located across. The "yacht" may simply not be visible in the photo due to the fact that it did not get into the field of view - on the radar it can be seen that it is somewhat offset from the line between the corvette and the observer.
      1. Horon
        Horon 9 December 2019 14: 00
        +2
        The angular deviation of the "yacht" from the ship is 10-15 °. The edge of the "yacht" should be visible in the photo, but it is not! The dimension of the radar grid is also not entirely clear (does he see a maximum of 6 miles?). There are many questions and only specialists can answer them. And in the article itself there are enough mistakes.
        1. Rzzz
          Rzzz 9 December 2019 17: 34
          +1
          Quote: Horon
          Does he see a maximum of 6 miles? ) There are many questions and only specialists can answer them.

          As a specialist, I’ll answer that for any navigation radar, the scales switch from 0.25 to 48 miles, and for some more.
  20. fruit_cake
    fruit_cake 9 December 2019 13: 09
    0
    in such a projection, side and side, it will normally reflect, if it is at angles or in front, then visibility should decrease
  21. Gust
    Gust 9 December 2019 13: 17
    +3
    In general, I would like to comment on a specialist. Pictures from analog radars look different. If it is a figure and post-processing, then why is the mark in a different perspective?
    1. Rzzz
      Rzzz 9 December 2019 17: 38
      0
      The shape of the mark is not always located in the same way as the vessel is located relative to you. From the back of the ship the echo does not arrive, you only see the part of the ship that is located to you. The brighter and thicker the better it reflects.
  22. Archivist Vasya
    Archivist Vasya 9 December 2019 13: 17
    0
    Stealth on huge ships - some kind of nonsense, planes are another matter, they are needed there.
  23. san4es
    san4es 9 December 2019 13: 29
    +1
    hi ... the full displacement of the Visby corvette is 670 tons
    1. Mavrikiy
      Mavrikiy 9 December 2019 16: 26
      +1
      Interestingly, video 4-30, where are the "green" and their bulldog looking?
  24. Victoria-V
    Victoria-V 9 December 2019 13: 45
    +1
    An hour later we called the police, they say:
    “Are you out of your mind?” These are crooks.
    And then, like the sun from behind the clouds, it immediately clarified: Rogues! Deceived us! ...
  25. mehan
    mehan 9 December 2019 13: 57
    -1
    I wonder where this radar? The range is clearly n ground ....
  26. Suslin272
    Suslin272 9 December 2019 14: 08
    +1
    Yacht and garbage on the water to the left. And to the right (the upper left corner of the radar image) the mark from the Visby corvette is more precisely half of it then the range with the size is sewn.
  27. Berkut24
    Berkut24 9 December 2019 14: 43
    +1
    It's all about the frequency at which the detection takes place. The same "Zumwalt" on the radar of the bulk carrier looked like an ordinary boat. When irradiated at a different frequency from the coast, it began to radiate like an aircraft carrier.
    1. S-400
      S-400 10 December 2019 13: 48
      0
      In order for it to "start firing like an aircraft carrier", the wavelength must be comparable to the typical size of the "plates" from which it is composed. So we are talking about the decimeter range! Yes, in this range, no "stealth" will help, but what's the point?
  28. Lone gunman
    Lone gunman 9 December 2019 15: 19
    0
    All the words blah blah ... but what awesome Swedes make ships, well, not otherwise - Aryans ...)))
  29. Mavrikiy
    Mavrikiy 9 December 2019 16: 16
    -2
    This is not a ship. And its history will be akin to the history of the Vaza ship.
    ship height -19,3 m
    Draft - 2,4 m
    angle of sunset of the diagram of static stability at standard displacement - not less than 70 °.
    Metacentric height with standard displacement - at least 1,9 m
    Someone, somewhere a comma, and not one. For with such a draft, it is possible to have such a MCV if you make a Visby from foam and fill the keel with lead.
    Sailing then, huh?
    Only sitting in the skerries, and even then in calm weather.

    Not a shipbuilder, but went to school.
    1. Rzzz
      Rzzz 9 December 2019 17: 44
      0
      Normal Hm, so what? By the way, this is far from the main indicator of stability, the shape of the diagram is more important and the characteristic angles (peak and sunset). 70 ° sunset - a little bit short to an unlimited ocean area according to Lloyd's standards.
  30. Vladimir1155
    Vladimir1155 9 December 2019 17: 35
    -1
    all surface ships are visible on radar, from satellite and visually
  31. Sapsan136
    Sapsan136 9 December 2019 18: 29
    +1
    This is not a corvette, but a missile boat, or MRK ... without air defense and PLO ...
  32. pv1005
    pv1005 9 December 2019 18: 41
    +1
    Quote: Gray Brother
    Quote: Canecat
    There is no reference to the picture, and on the radar screen far from 200-300 m range is indicated ... or how many there are in cable ...

    The coastline is observed visually, but for some reason it is not on the screen. Even I suspect this is a hat.
    But a large mark just to the right for some reason is not visually observed.

    See the question:

    Well, gentlemen believe in the word. laughing Che you are attached to some coastline there. Well, you can’t see her request and she is there. yes laughing
  33. Alexey from Perm
    Alexey from Perm 9 December 2019 21: 12
    0
    Our corvettes are not stealth.
  34. Pavlov Sergey Alexandrovich
    Pavlov Sergey Alexandrovich 9 December 2019 22: 57
    0
    What kind of combat stealth configuration ???
  35. Romeo
    Romeo 9 December 2019 23: 32
    +2
    This is the display of a conventional navigation radar. Most likely this is a Litton Bridgemaster model E. The picture is similar to a 3-cm radar, frequency 9410. But the scale is at least 6-12 miles.
    1. S-400
      S-400 10 December 2019 13: 52
      0
      Never look like! Litton Bridgemaster model E is already a modern locator. And in the photo, there is a suspicion that in general a picture with a CRT was taken. Some kind of terry junk, most likely.
  36. Ax Matt
    Ax Matt 10 December 2019 00: 02
    0
    I don’t understand something ... he has a mast at the stern, rigging ...? wassat
  37. The comment was deleted.
  38. _M_
    _M_ 10 December 2019 01: 20
    -1
    What are you discussing here at all? There is no yacht there. Draw a picture from the radar, compare with the photo and understand that this is a crude fake, disa, lyapoinfa - as you like! negative
  39. pmkemcity
    pmkemcity 10 December 2019 05: 29
    0
    If this is a navigation radar, why such a heading angle? Is the stealth going straight ahead? Strange reflections of bookshelves and advertisements in the hands of the photographer. It seems to me that this is a photo of a computer screen or some kind of simulator.
  40. Momotomba
    Momotomba 10 December 2019 10: 17
    0
    Please explain one thing to me. Well, I don’t see this ship on my radar ... But in order to use its weapons, it must be threshed with its own stations (airborne detection and firing). I don’t understand on my ship that they are irradiating me?
    Or is the problem that the Baltic Sea is shining and irradiating from all sides?
    1. S-400
      S-400 10 December 2019 14: 00
      0
      Naturally understand. The same eggs as with a submarine: while you are in a passive - no one sees you, but literally just turning on the active sonar mode and that’s all - you can pop up, everyone already knows about you. Another thing is that it can sneak up to such a distance that when you turn on the active radar mode, for example, to aim RCC, you will not have time to do anything.
      Absolutely the same garbage as the famous attack of the Argentine "Super Etandars" on the English convoy. There only instead of "stealth" flights were at extremely low altitudes over the sea, but the essence is the same.
      1. Momotomba
        Momotomba 11 December 2019 07: 05
        0
        And to sneak up, he must know where, in fact, to sneak ... And for this you need to at least see something around him. I understand correctly that there isn’t much point in stealth technology at sea?)
        1. S-400
          S-400 11 December 2019 17: 33
          0
          In order to know "where to sneak" there are means of intelligence. For example, the same "Sentry".

          If we are talking about solo swimming and a dueling situation, it still has. For example, radiation from the Visby was detected on the attacked ship. Yes, the combat alert is played, but what next? You only know the azimuth to the enemy and the very, very rough range. Neither who it is (modern radars have long been impossible to classify by the type of radiation), nor the exact range, you do not know, because either you do not see it, or you see it poorly (primary marks appear, but little and the target is not captured). And he got full information on you.

          If the range allows, then there will immediately be an attack by a CD or RCC. Simply put, the reduced ESR significantly increases the chances, even in a duel situation, that he will press the first button on the "Start" button. And if the attack was not part of his plans (for example, in peacetime, conducting reconnaissance), then it increases the chances that he will elude you, even if you "hooked" on his radar.
          1. Momotomba
            Momotomba 12 December 2019 21: 09
            0
            It turns out that the surface "submarine" is straight)) seems to be there, but where it is not clear ...
  41. S-400
    S-400 10 December 2019 13: 29
    +1
    to go completely unnoticed for radar

    Whinnying like a horse, is it from the category of military anecdotes about "physicists about them will not be bothered"? :)
    Author, tell me how it is possible to become "completely unnoticed" for the radar?
  42. Sanichsan
    Sanichsan 10 December 2019 17: 05
    0
    mde what what's next? Submarine stealth analysis based on fisherman’s sonar data?
  43. Daddy pig
    Daddy pig 10 December 2019 18: 29
    0
    I have been working on sea merchant ships for 15 years, and I declare with full responsibility: in the photo we see an ordinary marine radar of a merchant ship, not the latest model, but not "analog old" either. On it we see exactly the ship that is in the photo, and yes, the mark is simply amazing, usually such a signal is given by a wooden fishing boat. All "eds" which supposedly do not exist, as well as other jewelry in the form of electronic cards, etc. these are all customizable elements that can be turned on and off at will, there is nothing strange here. A large bright spot in the lower right corner is a reflection of a window (porthole) on the bridge (even a staircase to the "monkey island" is visible there), and with characteristic rounded corners, typical of a ship's bridge. Shelves with books, ordinary shelves on the bridge with a ship's library and with special "slats" in the lower part, so that publications do not fly over the bridge while rolling.
    Conclusion: a photo of a regular radar screen, on an ordinary merchant ship, with a very unusual warship crossing the course.
    And comments from fans of conspiracy theories deliver, yes)
  44. nznz
    nznz 11 December 2019 10: 37
    0
    I will make a contribution. In 1983-86 he worked at one research institute. At first, the instrument was developed for the control of the paths (16m + 16m there and arranged) of ship radars. It worked simply and efficiently — a 10 Hz signal was sent to a packet of pulses — at some obstacle, the signal was extinguished, (at the end of the path there was a short-circuiting platinum to be reflected). Since the device along the way indicated the distance to the interference, you turn the knob and combine it with the interference, here you have the distance. It is not necessary to disassemble all these sections on bolts in hard-to-reach places sequentially. Removed the necessary-rubbed-dried and all.
    In some year, the Maldives happened and what happened there that the Argentines managed to Anglo-Saxons rocket on ships. It turned out that a simple aircraft radar is enough to direct a missile at a target. They put us in secret with a sidekick and gave us documents to read.
    The sector took up the theme of developing a surf for measuring the reflection of a coating. By that time it had already been invented in Sevastopol. Our shipbuilding has already covered these ships with military vessels. People washed their hands into the blood measuring the knot-antinode, then to calculate the reflection, twisted the screws with a notch at 5 points and over the entire surface in several places. Until the layer shows sufficient absorption, we measured, applied another layer, etc. We took the number of brigades. Dragged carts through the woods with microwave generators and so on. We managed to develop a device - we created something, of course, not a serial version, everything was assembled manually and in factories. But proud, the device became a wearable operator, and the measurement process became simple-post. I pressed the horn to the board, and pulled the trigger on the pistol grip. In the hands of a radiating head-brick at the end of which there are two antennas nearby. And everyone knows how the antenna behaves in the far zone, and when back to back? Yes, two more nearby. They decided with the help of biaodial log-periodic antennas — they sprayed or poisoned them no longer remember — they looked like badges round with a maze. As a result, we even passed the test at the Central Research Institute of Krylov in St. Petersburg. They measured all their samples from plexiglass to polystyrene with wires and on the mock-ups of ships — accuracy killed them on the spot — 2-digit number after the decimal point. On today's materials you can make a wonderful pocket thing — the generator will be smaller and lighter, and displays are now much smaller than then. The result It was remembered both on the radiation head and in the block of the wearable generator. Chef slap the candidate on this device, and everything went into a drawer. It's a pity. and so we thought that we had grabbed God by the beard. Alas, soon in the scientific literature articles appeared on the use of spark emitters (it seems diodes with a S-type I-V characteristic (volt-amp har). This meant that the radar signal, which in an ordinary one is limited to a narrow band, in This case becomes broadband, that is, the coating absorbs a small range of radar frequencies, and if you pour it with broadband at other frequencies it will be in the palm of your hand. You won’t hide. Sorry for the space, I’m nostalgic for the times when some country benefited: ) and not si she ate a pensioner on his neck.
    1. S-400
      S-400 11 December 2019 17: 43
      0
      Quote: nznz
      And everyone knows how the antenna behaves in the far zone, and when back to back?

      Forgive me, but like a horse whinnied when back to back - this is called the simplest antenna array, you do not know? And how she behaves, even in 1982. already knew the length and breadth, the volumes were covered. You are in your "sector", a campaign, from the category of the next "opened America through the window" followed by "but no one needed it." The Chukchi is not a reader, the Chukchi is a writer, yes, why read any kind of literature, now we will suck everything out of the finger? :( :(
      1. nznz
        nznz 13 December 2019 06: 09
        0
        clever? wrote what he was doing. As for antenna arrays, I can’t skip off after more than 30 years, why they could not be used. We developed the radiation system together (counterparty) with the Polytechnic Institute, with the department of circuit and signal theory. From the Polytechnic University, this question was supervised by Professor cn. a long time ago. Many years have passed, I can not reasonably object to you, or rather your spit in the past. I don’t know why a log-periodic option was chosen from a pair of antennas, I don’t remember. I don’t remember whether the antenna array could be used on a 15x15 cm patch, I don’t remember even two because of the difficulties associated with the formation of the radiation patterns and the apparent transfer of radiation power .. Your sarcasm is incomprehensible. I wrote what is, or rather what was. And it worked. Let specialists who understand how the AR works at a distance of 5 cm from the obstacle answer you. I remember that it was about the Fresnel and Fraungoffer zones. The behavior of the signal in the far zone was well known, but how the field behaves at a short distance was not clear. The radiation frequency was 10 GHz. I won’t argue — much arrogance and a sense of transcendence in your words — it makes no sense to argue with such people; you are rushing of your own significance.
        1. nznz
          nznz 13 December 2019 11: 40
          0
          looking at the properties of 2 input log-periodic flat ones. Their plus is that they are simply more focused, the radiation level of the elements is concentrated in the center. Perhaps this was the reason for the application. AR-require devices for the formation of DN (diag. Eg), this is superfluous when there is a pain for the weight and dimensions of the device. Get clever further enlightened.
  45. Dmitry Simakin
    Dmitry Simakin 11 December 2019 22: 11
    0
    "onboard radar of one of the ships of Sweden, which at the time of this photo was located about 250-300 m from the" Visby "-class corvette
    Cho really?
    ???? :-))))))))
  46. The comment was deleted.
  47. Zhevlonenko
    Zhevlonenko 13 December 2019 09: 11
    0
    I suspect that they want to fuck, I see the earth, I see the corvette, where is the yacht of the Lord? In my opinion, the first mark on the radar is the corvette. a small mark of almost the same color as the reflection near the top of the "radius", so this is also most likely some kind of reflection from the cameraman during shooting, Clumsy tovarischi.