Military Review

In the USA, they talked about the difference between the Varshavyanka diesel-electric submarine and the American submarines

73
In the USA, they talked about the difference between the Varshavyanka diesel-electric submarine and the American submarines

The last adopted by the Russian fleet the Petropavlovsk-Kamchatsky submarine is not like any American submarine because it does not have a nuclear reactor, but runs on batteries. About this writes the Forbes publication.


Russia and the United States have a different approach to the formation of their submarine forces, the newspaper writes. If the U.S. Navy relies on nuclear submarines that can go far from naval bases and operate autonomously, then Russia, along with its nuclear submarines, is developing a class of non-nuclear submarines that can operate in a limited space near the bases.

The new Russian submarine is a modernized version of the Kilo class submarine. It uses reinforced lead-acid batteries to power the engine. These batteries are periodically recharged using a diesel generator, and this type of power plant is called diesel-electric

- writes the publication, noting that in the United States the last submarine of this class was built in 1958.

The author of the article notes that Russia is building such submarines for operations in the area of ​​its naval bases in all fleets, but the use of non-nuclear submarines for the Black and Baltic Seas is especially relevant. Among the strengths of the Russian “Varshavyanka” the author calls the smaller size, cheapness and difficulty of detection. At the same time, he notes that Russian non-nuclear submarines still do not have an air-independent power plant, which significantly affects their combat capabilities due to the more frequent ascent to recharge batteries.

73 comments
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  1. Sofa expert
    Sofa expert 13 December 2019 12: 42
    0
    Good dap, and soon fraternal
    1. Sofa expert
      Sofa expert 13 December 2019 12: 44
      0
      Already plowed open spaces of the seas and oceans
      1. URAL72
        URAL72 13 December 2019 13: 00
        +2
        VNEU is of course very necessary, but earlier, and even now somehow they do without it. Many. I think we can carry out tasks now, but there are less chances to survive. And when did it stop us? Or are we not Russian anymore?
        1. NEOZ
          NEOZ 13 December 2019 13: 18
          -6
          Quote: URAL72
          VNEU is of course very necessary,

          to whom? why? ... why can't a reactor be used instead?
          1. lukewarm
            lukewarm 13 December 2019 13: 28
            +2
            Quote: NEOZ
            why can't a reactor be used instead?

            In principle, a different class of boats. More expensive, more noisy (relative to diesel submarines). VNEU would solve the problem of autonomy of diesel-electric submarines. It is surprising that we do not have it yet. The Swedes have it. The Germans have it.
            1. NEOZ
              NEOZ 13 December 2019 13: 40
              -2
              Quote: unwillingly
              It is surprising that we do not have it yet.

              the United States also does not, although the most advanced maritime power ...
              Quote: unwillingly
              more

              the smallest nuclear boat is 2 times smaller than Warsaw (like a Frenchman)
              Quote: unwillingly
              Expensive

              agree
              Quote: unwillingly
              VNEU would solve the problem of autonomy of diesel-electric submarines

              VNEU allows you to swim under water at a speed of 2-4 knots .... you can’t go far at that speed ....
              1. opus
                opus 13 December 2019 15: 24
                +1
                Quote: NEOZ
                the United States also does not, although the most advanced maritime power ..

                they don’t need atomic ones. Money chickens do not peck.
                ZhCI "reactor" roads
              2. DenZ
                DenZ 13 December 2019 16: 13
                +1
                Quote: NEOZ
                the smallest nuclear boat is 2 times smaller than Warsaw (like a Frenchman)

                The smallest nuclear submarine is our AS-12 Losharik, and this is not a full-fledged submarine but a nuclear power plant. It is 13 meters shorter than the Varshavyanka. French Ruby "(nuclear submarine) has the same length as" Varshavyanka ". Comparing them in displacement (underwater) - 3960/2607 Varshavyanka / Ruby, respectively. Where is 2 times here?
                1. NEOZ
                  NEOZ 13 December 2019 16: 28
                  0
                  Quote: DenZ
                  Where is 2 times here?

                  I wrote by intuition, in this context, not fundamentally.
                2. sir_obs
                  sir_obs 13 December 2019 18: 44
                  +1
                  The smallest nuclear submarine is our AS-12 Losharik, and even then this is not a full-fledged boat


                  705 project 2300 over the ox, 3100 Under water, the smallest reactor with a metal coolant, no one could do less so far.
              3. URAL72
                URAL72 13 December 2019 16: 23
                0
                The French had a "Rubis", but it is no less, besides, a different type of reactor, less uranium enrichment, which means more frequent charging. In terms of combat effectiveness, it is no better, and with the Caliber it is never equal. Amers simply do not have diesel-electric submarines, the strategy is different. You indicated the speed of a low-noise stroke, therefore I draw a conclusion - I am an amateur, and you are a tough layman. If not in the subject - do not use a verb.
                1. NEOZ
                  NEOZ 13 December 2019 16: 42
                  -2
                  Quote: URAL72
                  but he is no less

                  this does not change the essence.
                  Quote: URAL72
                  also a different type of reactor

                  it doesn’t matter to the raised issue.
                  Quote: URAL72
                  In terms of combat effectiveness, it’s not better, but it’s still not even with Caliber.

                  Yes, no one compared the combat capabilities of ships in terms of weapons ...
                  Quote: URAL72
                  Speed ​​you indicated low noise

                  economical running ... but can VNEU accelerate submarines faster?
                  Quote: URAL72
                  because I conclude

                  I would not recommend voicing your abusive speculations, do not look culturally.
                  Quote: URAL72
                  If not in the subject, do not speak.

                  if you don’t speak, it’s hard to bring anything from outside ...
                  1. URAL72
                    URAL72 13 December 2019 17: 09
                    +2
                    I agree with the last phrase, but VNEU is developing 17 nodes. Therefore, I pointed out correctly. And about caliber - so what for us Rubis? The French are great, but they have weapons with Gallic elegance, but not with Russian simplicity, cheapness and efficiency.
              4. lukewarm
                lukewarm 13 December 2019 17: 13
                0
                The latter was not in the know. But it is a very low noise speed. I don't know if VNEU can be used as a backup. As for the small size: I think "Varshavyanka" and did not try to make the smallest.
              5. sir_obs
                sir_obs 13 December 2019 18: 58
                0
                VNEU allows you to swim under water at a speed of 2-4 knots .... you can’t go far at that speed ....


                The speed does not depend on the power plant, nuclear-powered submarines on patrol move at a speed of 6-8 knots, the maximum low-noise stroke. For boats with VNEU the situation is not much different. Diesel engines are another matter, they are forced to save battery power and are on the go. They don’t even go, the course allows you to keep the depth of the rudders, the flow in the area can be twice the speed of the submarine itself.
            2. TermNachTer
              TermNachTer 13 December 2019 15: 24
              +4
              I read on the Internet that VNEU, too, is not a panacea for all problems, it also has certain disadvantages. And as I said above, one of the comrades, for working near their bases, at shallow depths, diesel-electric submarines have certain advantages over nuclear submarines.
            3. ser56
              ser56 13 December 2019 15: 27
              -3
              Quote: unwillingly
              In principle, a different class of boats. More expensive, more noisy (relative to diesel submarines)

              it depends on which reactor ... if it is like on satellites, then it is silent .... request
              Quote: unwillingly
              NEU would solve the problem of autonomy of diesel-electric submarines

              however increase the noise hi
              1. Boa kaa
                Boa kaa 13 December 2019 16: 40
                +2
                Quote: ser56
                however increase the noise

                Wow, damn it! But men don’t know ... belay
                Sergey, modern VNEU (Stirling, gas turbine ZZ, etc.) do not have moving parts ... What will there be noise !?
                The trace ... Yes, the heat will increase ... But you need to go over the track of the quiver ... During the war, this is practically impossible: they’ll fuck you!
                Quote: Maz
                For a long time there is a NEU boat in the Russian Navy, but who will show it to you?

                Yes, it was even put up for sale, together with the "Crystal-27", 750 project, if sclerosis does not change ...
                Quote: NEOZ
                VNEU allows you to swim under water at a speed of 2-4 knots .... you can’t go far at that speed ....

                So for patrolling in the veil, more is not necessary ... But at this time you can also knock out the AB. And when you need to jump, then the battery will go ...
                Quote: NEOZ
                the smallest nuclear boat is 2 times smaller than Warsaw (like a Frenchman)

                They are practically equal in displacement. The difference is 400-500t. But our armament has more, it is quieter than the "Rube", it costs 4 times cheaper ...
                Quote: NEOZ
                the United States also does not, although the most advanced maritime power.

                They have a different concept. At one time, they even studied VNEU, but then they transferred all their achievements to the Republic of Korea ...
                Quote: NEOZ
                why instead of it (VNEU) it is impossible to use a reactor?
                Why not? -- Can. And we have such experience. VAU-6 (Dollezhal's egg) a small-sized boiling-type nuclear power plant was installed on a submarine pr.651E. But in the future, this idea was abandoned.
                So, our Kulibins move their brains ... But there are certain difficulties with industry ....
                But.
                1. VALERIK_097
                  VALERIK_097 13 December 2019 19: 21
                  +1
                  Before dismantling the control system IM zak.512, the designers read a course of lectures. The SPOM.AU is quite interesting. The stand and one more "Egg-6" remained in nature. The work on new auxiliary installations did not slow down, why they do not use xs now.
                2. ser56
                  ser56 14 December 2019 13: 45
                  +1
                  Quote: Boa constrictor KAA
                  modern VNEU (Stirling, gas turbine ZTs, etc.) do not have moving parts ... What will make some noise !?

                  Does this turbine have no moving parts? bully Are you not a philologist / psychologist / economist for nothing? hi
                3. Crimean partisan 1974
                  Crimean partisan 1974 15 December 2019 14: 05
                  0
                  VNEU (Stirling, gas turbine ZZ, etc.) do not have moving parts ... What will make some noise!? ----- the stirling has the same scheme of the crank mechanism, the difference is that the internal combustion engines just work on internal heat . and stirling on an external heat supply, which concerns turbines, ...... well, first you need to go to the airport to tease your ears, and even so the generators give a fair beating, damping does not save, so there is something to make noise
              2. lukewarm
                lukewarm 13 December 2019 17: 15
                0
                About satellites, I don’t know. In boats laughing also not special. But I read that there is not so much reactor noise as TZA (turbo-gear apparatus), as I understand it, this is a drive from the own reactor to the screws
                1. Boa kaa
                  Boa kaa 13 December 2019 18: 04
                  +4
                  Quote: unwillingly
                  that there is not so much reactor noise as TZA (turbo-gear apparatus),

                  Pavel, now they are trying to get away from the scheme with GTZA. Amy in the 5 series of Virgins switch to full electric movement: Reactor-PPU - electric generator - GED. The latest trend is to place GEDs in the ring screens of movers altogether ... outside the PC.
                  We have a 885 electric circuit up to a speed of 9,0 knots. Further, the electric motors do not pull. Therefore, a turbine is connected to the LV through the GTZA, (in order to transfer power to the shaft ... and have a high underwater speed).
                  1. Crimean partisan 1974
                    Crimean partisan 1974 15 December 2019 14: 19
                    0
                    Reactor-PPU - electric generator - GED ........ but here's an ambush, the reactor is constantly working. according to this, seawater is constantly chasing to cool the second circuit, this is noise, or rather the gurgling is quite audible, and in addition to the heat trail, they learned to detect it back in the 70s
          2. vfwfr
            vfwfr 13 December 2019 18: 06
            0
            Expensive and long-term production of the reactor and the boat itself too ...
        2. dirk182
          dirk182 13 December 2019 15: 51
          +4
          Quote: URAL72
          but there’s less chance of survival. And when did it stop us? Or are we not Russian anymore?

          Or maybe it’s better to survive during the task, so that the next one to complete? Yes and more fun will perform the task, knowing that there is a chance. And not like kamikaze in the last battle.
        3. bistrov.
          bistrov. 13 December 2019 16: 07
          0
          Quote: URAL72
          VNEU is of course very necessary

          Firstly, a very complex device, besides much more expensive, and its operation is fraught with great risks until a design breakthrough is made, that is, it will become as cheap as acid batteries and its safety will increase significantly, there is no point in bothering with it . In which case, there is a proven design of a nuclear power plant.
          My opinion is correct that so far they have relied on a traditional design ...
        4. Michael67
          Michael67 13 December 2019 23: 39
          -1
          We are told only what can be told. North American little white fluffy animal in any way. A people series.
        5. Smoke
          Smoke 14 December 2019 09: 39
          +2
          Yes of course!!! We are Russians !!! URAYAYAYA !!! 11 BABA SEEKING TO INFRASE !!! 11
    2. Maz
      Maz 13 December 2019 14: 08
      +2
      from zhezh stubborn, there has long been a NEU boat in the Russian Navy, but who will show it to you?
  2. Alexander Suvorov
    Alexander Suvorov 13 December 2019 12: 47
    +11
    Russia and the United States have a different approach to the formation of their submarine forces, the newspaper writes. If the U.S. Navy relies on nuclear submarines that can go far from naval bases and operate autonomously, then Russia, along with its nuclear submarines, is developing a class of non-nuclear submarines that can operate in a limited space near the bases.
    Captain, damn obvious. It is enough to look at the concept of using submarines here and there. Some are going to attack all the time, the second are going to defend all the time. Well, straight "America was discovered" ... request
    1. cniza
      cniza 13 December 2019 12: 56
      +6
      And it surprises them, they just can not understand us.
    2. eagle owl
      eagle owl 13 December 2019 13: 03
      +9
      Moreover, they have had defensive weapons all their lives in the pen. It is enough to look at the Patriots - they are the hell on whom you are attacking, here they are oops. Or such a class - interceptors. Fighters in the sense. Are there specialized interceptors in the US? Fighters breakthrough air defense - the first strike - is. And interceptors, oops. But in Russia there.
      It’s all because the US has the concept of attack — a destabilizing factor on a planetary scale. All others - at first think about defense. All except the USA
      1. Alexander Suvorov
        Alexander Suvorov 13 December 2019 13: 06
        +6
        eagle owl
        All others - at first think about defense. All except the USA
        This is because no one attacked them, beyond the fenced off oceans. And they begin to be very surprised and hysterical when Russia has not only a weapon of defense, but also a weapon with which we can turn this very America to ashes. Like, "what about us" ?!
      2. Eroma
        Eroma 15 December 2019 12: 14
        0
        I compare everything with the Roman Empire, the United States, they believed in it and use ancient wisdom: The best defense is an attack! am They simply see the ability to attack first to see the best defense. belay
        But we do not understand this and are not justifiably building up our defensive potential. feel
        1. eagle owl
          eagle owl 15 December 2019 20: 44
          0
          States are like people. In childhood, they are insanely aggressive; therefore, many do not live to old age, and those who survive live wisely and stop waving their fists for no reason, and those who do not stop - they kill them. China and the Russian Federation are aged states. The USA is a jerk from a pioneer camp who does not understand that if an adult uncle takes it seriously, they will not find his grave with dogs!
  3. Vladimir_2U
    Vladimir_2U 13 December 2019 12: 51
    +1
    Opened your eyes, benefactors!
  4. VLADIMIR VLADIVOSTOK
    VLADIMIR VLADIVOSTOK 13 December 2019 13: 06
    +1
    America aggressor, Russia defender. Why swim across the ocean. The adversary crawls on his own. The noisy Warsawyanka surpass the US submarines. Come, bang.
    1. tatarin1972
      tatarin1972 13 December 2019 13: 20
      -1
      All diesel electric submarines of the USSR and Russia were mainly spent on hunting the nuclear submarines of a potential enemy. All diesel-electric submarines are superior to submarines in noise.
      1. eagle owl
        eagle owl 13 December 2019 13: 34
        +1
        All diesel-electric submarines are superior to submarines in noise.

        Which side? At least one point - there is a reactor that cannot be shut off. And it circulates (moves) in it different-tasty. Battery at work - silent
        1. tatarin1972
          tatarin1972 13 December 2019 13: 38
          +2
          Not correctly put it, for a little noise.
    2. Grits
      Grits 13 December 2019 16: 57
      +3
      Quote: VLADIMIR VLADIVOSTOK
      The noisy Warsawyanka surpass the US submarines.

      Never will a battery make a noise more than a reactor.
  5. Avior
    Avior 13 December 2019 13: 13
    +3
    the submarine "Petropavlovsk-Kamchatsky" is not similar to any American submarine, because it does not have a nuclear reactor, but operates on batteries

    Maybe readers of Forbes magazine need to explain this, but to VO readers this explanation seems to be too much
  6. bk316
    bk316 13 December 2019 13: 15
    +4
    the submarine ... is not like any American submarine, because it does not have a nuclear reactor, but runs on batteries.

    What a depth of analysis!
    For my part, I can add
    American icebreakers are not like Russian because they do not have a nuclear reactor .... belay
    1. Svarog51
      Svarog51 13 December 2019 13: 41
      +6
      Vladimir hi They should watch their own film "Remove Periscope". good
      1. bk316
        bk316 13 December 2019 15: 13
        +1
        A fun movie.
    2. NEXUS
      NEXUS 13 December 2019 15: 44
      +1
      Quote: bk316
      American icebreakers are not like Russian because they don’t have a nuclear reactor ...

      Talking in the plural about essentially one icebreaker is bold ...
      At the same time, one of these operating icebreakers called the Polar Star was built 40 years ago. He has long overcome the expected life of his service and is constantly breaking down, the channel notes. Built in 2000, the Healy icebreaker is capable of performing only a scientific function.
      1. bk316
        bk316 13 December 2019 15: 56
        0
        They kind of ordered a series ....
  7. Pup1
    Pup1 13 December 2019 13: 15
    +1
    Forbes .. powerful analytics ... does anyone get paid for that?
  8. gabonskijfront
    gabonskijfront 13 December 2019 13: 24
    0
    non-volatile energy installation (VNEU) is our misfortune, not wanting to carry high-purity hydrogen on board (like everyone else), ours decided to get it in the required volumes on the boat itself from diesel fuel, and sat down for many years, maybe on a dead end .
    1. Pattor
      Pattor 13 December 2019 13: 32
      0
      It seems that there were reports that not only this area is being investigated here.
      1. gabonskijfront
        gabonskijfront 13 December 2019 13: 41
        0
        They do not want to abandon the technology of diesel reforming on board, they say another 5-6 years and they will bring it to mind.
  9. carstorm 11
    carstorm 11 13 December 2019 13: 33
    +4
    but do not want to write about the difference between our BMP 3 from Abrams? Well, what would continue this comparison is strange?)))
  10. Vkd dvk
    Vkd dvk 13 December 2019 13: 41
    0
    Having the task of protecting approaches to their own naval bases, and a limited range. The absence of a non-volatile installation is not critical. The advantage of the ABSENCE of this installation is the use of the free volume for weapons and supplies. No and will not be long yet non-volatility with high rates of profitability.
    For submarines that DO NOT use air to operate engines, the concept of ENERGY INDEPENDENCE is utter stupidity. Energy is expended in any case.
  11. smaug78
    smaug78 13 December 2019 13: 50
    +2
    As always, they compared the soft with the salty and joyfully began to jump ...
  12. Ratmir_Ryazan
    Ratmir_Ryazan 13 December 2019 14: 41
    +1
    DEPLs are good for the defense of their near sea zone, relatively cheap and effective.

    And is it really easy to set off a diesel-electric submarine which, for charging the battery, does not emerge completely, but only raises the snorkel above water, moreover, from a radio-absorbing material or with such a coating ?!
    1. Avior
      Avior 13 December 2019 15: 47
      +3
      The diesel engine is very noisy during operation, the exhaust gases are trapped by the gas analyzer, the boat is visually visible at periscope depth from the air, it is determined by a magnetometer, modern radars can identify the “snorkel” by statistical methods, etc.
      1. Pup1
        Pup1 13 December 2019 19: 26
        0
        Well, yes, 300 km from the base ... visible .. and what ... not from the flodida. ... do not care?
      2. Ratmir_Ryazan
        Ratmir_Ryazan 14 December 2019 12: 09
        +1
        The diesel engine is very noisy during operation, the exhaust gases are trapped by the gas analyzer, the boat is visually visible at periscope depth from the air, it is determined by a magnetometer, modern radars can identify the “snorkel” by statistical methods, etc.


        But in order to detect it in this way, an airplane or helicopter must fly over the place where the diesel-electric submarine surfaced to charge the battery. And is it so easy to do this at sea - to find a place where the diesel-electric submarine decided to recharge the battery.
        1. Avior
          Avior 14 December 2019 12: 11
          0
          When charging, her apl will be heard from far away.
          If there is an assumption that the enemy is in the area, you can’t charge the batteries
    2. Seaflame
      Seaflame 13 December 2019 20: 49
      0
      In underwater business, radio-absorbing materials are like this, the main thing is sonar - you are making a loud noise about the corpse.
      1. Ratmir_Ryazan
        Ratmir_Ryazan 14 December 2019 12: 07
        0
        In underwater business, radio-absorbing materials are like this, the main thing is sonar - you are making a loud noise about the corpse.


        At what distance can a submarine or an enemy ship detect a diesel-electric submarine that turned on the diesel to recharge the battery?
        1. Seaflame
          Seaflame 14 December 2019 18: 30
          0
          hi Ratmir, this is a whole science, depends on a bunch of factors, on hydrology (what kind of attenuation and refraction of the acoustic signal in this place and at this time), the level of interference (say the area of ​​heavy shipping), etc. Therefore, the distance can be calculated as a few kilometers, and many tens.
  13. opus
    opus 13 December 2019 15: 21
    -1
    The last submarine "Petropavlovsk-Kamchatsky" adopted by the Russian fleet not like any American submarine because it does not have a nuclear reactor

    awesome !!!!
    But no one knew!
  14. Operator
    Operator 13 December 2019 16: 03
    +2
    Quote: NEOZ
    [VNEU] why can’t a reactor be used instead?

    Cargo cult, however drinks
  15. Berkut24
    Berkut24 13 December 2019 16: 05
    +1
    Yes, actually these are boats of completely different classes, for different tasks and with different weapons. It is strange to make surprised eyes in connection with the fact that the boats themselves turned out to be completely different.
  16. Seaflame
    Seaflame 13 December 2019 20: 46
    +1
    The Russian Navy really needs submarines with air-independent power plants. Varshavyanka is a great project, but its era is leaving. Not only Germans, but Koreans are already building submarines with VNEU, it’s time for us to take it seriously, and not indulge in mock-ups of aircraft carriers ...
    1. Nick Russ
      Nick Russ 14 December 2019 14: 13
      0

      "The Russian Navy really needs submarines with air-independent power plants. Varshavyanka is an excellent project, but its era is leaving. Not only the Germans, but also the Koreans are already building submarines with VNEU, it's time for ours to take it seriously, and not indulge in aircraft carrier models ..."

      So it’s already taken.

      "The leadership of the Russian Navy stated that they expect to receive the finished VNEU from Rubin in 2021-2022. Now, commenting on the Malachite premiere at IMDS-2019, the recently appointed Commander-in-Chief of the Russian Navy, Admiral Nikolai Evmenov, said that the decision to choose the project air-independent power plant for submarines can be adopted after comparative tests of what the Rubin and Malachite offer.

      "The declared parameters are good for each enterprise, for each design bureau," Admiral Evmenov made clear. "Therefore, we will choose the best. And the more proposals there are, the better."
    2. Crimean partisan 1974
      Crimean partisan 1974 15 December 2019 18: 46
      0
      we need submarines with non-volatile energy ..... and which ones, let me get interested in learning?
      1. The comment was deleted.
        1. Crimean partisan 1974
          Crimean partisan 1974 15 December 2019 19: 40
          +2
          Vladimir, there is very briefly here ... do not send me an exile., In the first place --- I did not ask. secondly, there is a danger of getting into porn. in the third ---- I personally asked you ALWAYS "! PL with air-independent energy ..", well, if you can contrive, tell
          1. Seaflame
            Seaflame 15 December 2019 20: 05
            0
            You don’t have to take an exam. Interesting? Well, google to help.
            1. Crimean partisan 1974
              Crimean partisan 1974 15 December 2019 20: 09
              0
              Interesting? Well, google to help ....... you need to google or Yandex or rambler in cases where there is not enough information, but in this case I’m not sure what exactly you have an idea of ​​what VOSEU is really for, well, even more so the problems with these settings
  17. Al_lexx
    Al_lexx 15 December 2019 00: 02
    +1
    I could be wrong, but it seems like diesel-electric submarines have long gone on silver, and not on lead. The instantaneous current efficiency of silver is certainly less, but at times more capacity and less weight. There were experiments with lithium (it seems like the Japanese distinguished themselves in this), they refused it because of increased accident rate.
    At the expense of the fact that diesel-electric submarines more often pop up to recharge the battery. So what? They are not designed for long-term follow-up of AUG, etc. purposes, but precisely for the protection of naval bases and the coast in general, in conjunction with coastal detection services. To do this, they do not need to be constantly under water at all times, and the reserve of underwater passage that modern diesel-electric submarines have is more than enough to secretly go into attack distance.

    About VNEU .. There are pros and cons. I read that, in terms of noise, VNEU lose to battery-powered boats, but by no means do they reach the autonomy of submarines. Yes, and I did not hear that they would build large boats with VNEU, and a small boat - a small autonomy and weapons, a priori.

    Well and yes, I agree with many previous speakers about the development strategies of submarines here and among the Americans. They need to nightmare their colonies and declare the threat of democratization far from their shores, and let Bo protect us our seas.