The head submarine of project 677 "St. Petersburg" was sent for modernization

The head submarine of project 677 "St. Petersburg" was sent for modernization

The lead diesel-electric submarine of project 677 (code "Lada") "St. Petersburg" went on scheduled maintenance and modernization. This was reported by the press service of the Ministry of Defense.


According to information, diesel-electric submarine "St. Petersburg", which is in trial operation in the North navy, left the base on the Kola Peninsula and headed for Kronstadt, where he will embark on modernization and maintenance. The Ministry of Defense emphasized that the submarine will carry out the entire inter-naval transition from the Barents Sea to the Baltic in a surface position. At the exit, she was escorted by the rescue tugboat Pamir.

The message does not indicate the timing of work on the submarine, and also what exactly will be the modernization.

The lead boat St. Petersburg of the Project 677 series of non-nuclear ships was laid on the slipways of the Admiralty Shipyards in December 1997, launched on October 28, 2004. In April 2010, the boat was accepted into the Russian Navy for trial operation, which continues to this day.

DEPL project 677 belongs to the fourth generation of non-nuclear submarines. It is designed to deal with enemy submarines and surface ships, defeat its coastal targets, set minefields, transport units and special forces.

Submarine displacement - 1765 tons, length - 67 meters, width - 7 meters, underwater speed - 21 knot, depth - more than 300 meters, autonomy - 45 days. The submarine is equipped with six 533-mm torpedo tubes.
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  1. Doccor18 April 7 2020 17: 15 New
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    A promising project that did not fire. VNEU does not. Well, now modernization.
    1. Sky strike fighter April 7 2020 17: 26 New
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      They are upgrading the headquarters of St. Petersburg to the level of the first production Kronstadt. The project fired. The equipment upgrade coefficient in the submarine, laid down during its design, reaches 70%.
      In 2021, the fleet will receive two serial upgraded submarines of 677 projects. St. Petersburg will be surrendered later than the first two serial ones.
      the submarine received the first digital integrated system built with the use of modern network technologies of high reliability “Lithium”, the first domestic inertial navigation system for the NPS “Apassionata”, the first highly automated miniature communication complex “Distance”, the periscope complex “Sail-98” of non-penetrating type, diesel DC generators, nitrogen fire extinguishing system. The noise level of the submarine, according to various estimates, is approximately 50% lower than that of the project 877 submarines.


      Joint campaigns with submarines of previous generations of projects 877 and 636 (classified by the Kilo type as classifiers from the North Atlantic block) demonstrated the significant superiority of the Lada in the detection range of underwater and surface targets.


      "Kronstadt" was completed according to the adjusted design, with the elimination of the deficiencies identified in the sea of ​​the head hull, it is an even more advanced warship. In terms of improvements to the basic project, we especially note the improved control system for naval technical equipment and the navigation complex. Introduced modern electronics that control these and other systems and mechanisms of the ship. Corrected the living compartment, where the crew, the wardroom and the galley are located. Retractable devices, shaft line shock absorbers are improved. The main rowing electric motor СЭД-1 developed by the Scientific Research Institute of Electronic Engineering has been replaced by a more advanced one from Electrosila JSC. It is also made with permanent magnets, similar to the German Siemens Permasyn.

      https://m.tvzvezda.ru/news/opk/content/201809271258-292n.htm
      1. 2 Level Advisor April 7 2020 17: 36 New
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        The fourth generation without VNEU is like a fighter - the 5th generation without stealth .. but otherwise, they are all normal, they are testing new devices on it .. 3+ generation .. But for some reason at least it “shot” at yours and the admiral said:

        Commander-in-Chief of the Russian Navy V. Vysotsky:
        “... the claimed technical characteristics of the project 677 submarines are not confirmed by the tests of the head submarine“ St. Petersburg ”. “In its current form, Lada, the Russian Navy is not needed. We do not need new “brains” with weapons that would sit on the energy of the Second World War. What for? Who needs this? And her operational properties are the same. "
        However, a little later the commander added that the project is being finalized and will be adopted.

        It is accepted .. but still "new" brains "with weapons that would sit on the energy of the Second World War"
        1. Sky strike fighter April 7 2020 17: 42 New
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          You forgot to write how many years ago Vysotsky commanded the fleet and what year his quote refers to when the 677 project was still really raw and not ready, so you reworked the project for so many years.
          1. 2 Level Advisor April 7 2020 23: 44 New
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            he said in 2012 that there was no VNEU on it - “We don’t need new“ brains ”with weapons that would sit on the energy of the Second World War.”, but VNEU, has it really appeared there today?
            It's a shame, a good boat, but without VNEU it is very conditionally needed, a diesel engine on a submarine is rapidly becoming obsolete these days ..
      2. rudolff April 7 2020 19: 46 New
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        The novelty coefficient of this project and ruined.
  2. Reserve buildbat April 7 2020 17: 20 New
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    Ten years of trial operation? what
    It’s interesting that they are trying so hard there ...
  3. Black sniper April 7 2020 17: 32 New
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    They built seven years ... Isn’t it too much ???
  4. knn54 April 7 2020 17: 40 New
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    In the surface position, accompanied by a tugboat.
    “The declared technical characteristics of the project 677 submarines are not confirmed by testing the head submarine“ St. Petersburg ”... The Russian Navy does not need the existing“ Lada ”submarine. We do not need new“ brains ”with weapons that could be used in the energy sector of World War II. Why? Who needs it? And her operational properties are the same. "
    Commander-in-Chief of the Russian Navy V. Vysotsky, 2012
    Generally back. "Admiralty Shipyards", which "shoved" the raw submarine into trial operation 10 years ago.
    1. Ratmir_Ryazan April 7 2020 18: 11 New
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      Generally back. "Admiralty Shipyards", which "shoved" the raw submarine into trial operation 10 years ago.


      The problem of LEP diesel-electric submarines is not related to shipbuilding, but to technology, Russia does not have an effective VNEU today, but without it, what can shipbuilders do for you?

      All that they could and what depended on them, they did, and VNEU is a question for our scientists, why we cannot do it and foreign intelligence, why we cannot steal technology, while Sweden, Japan, Germany have been exploiting it for a long time.
      1. Boa kaa April 7 2020 18: 46 New
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        Quote: Ratmir_Ryazan
        Russia does not have an effective VNEU today, and without it, what can shipbuilders do to you?

        Fair remark. But still...
        Malachite threatened to make VNEU on the basis of a closed-cycle gas turbine plant by 2021. Maybe they will do it? Therefore, they will try on in St. Petersburg, so that they can already put the spent ones to Kronstadt and Great Luke. But these are just assumptions, Wishlist ...
        А вот супостаты из Naval Gruop смастрячили ВНЭУ 2 уровня, получающую водород высокой очистки на борту из риформинга единого топлива ОТТО-2. Кислород криогенный вне прочного корпуса, ТЭЛы и на выходе -- вода, углекислый газ и электричество. Отсек с установкой занимает 8м длины. Может устанавливаться на вновь строящихся и модернизируемых лодках. Причем сделали они его еще в 2019 году, а кукарекнули только сейчас. Видать отработали и уверены в своем изделии. Наши так и не допилили это направление...А жаль. recourse
        The Naval Group has developed the FC2G AIP (Air-Independent Propulsion Fuel Cell 2nd Generation) 2nd Generation Non-Volatile Fuel Cell. AIP FC2G is an additional module to the main power plant of the submarine and is able to increase the autonomy of the submarine 3-4 times.
        https://naukatehnika.com/vozduhonezavisimaya-energeticheskaya-ustanovka.html
        naukatehnika.com
        1. rudolff April 7 2020 19: 43 New
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          Good evening again, buddy! Malachite creates its closed-cycle turbine for submarines with a displacement of up to 1000 tons of its own projects. Which, by the way, were not interested in our MO. This installation will not go to Lada. If only adapt to Amur 950, but nobody is going to order this miniLada. By the way, in vain.
          St. Petersburg is still in the experimental one for the simple reason that it does not meet the declared performance characteristics. Still. And through the Admiralty they already drove him. This will be another attempt. It was necessary to listen to Vysotsky in due time.
          1. Boa kaa April 7 2020 23: 16 New
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            Quote: rudolff
            Malachite creates its closed-cycle turbine for submarines with a displacement of up to 1000 tons of its own projects.

            Good evening, Rudolph!
            Кроме Малахита ВНЭУ на ЭХЛ еще и Рубин мастрячил. Тоже многообещающие перспективы рисовали...А помимо Рубина еще была такая организация как Крыловский государственный научный центр, который на испытательном стенде даже демонстрировал свою батарею БТЭ-50КЭ ... И водород высокой степени очистки для нее д.б. вырабатывать на борту ПЛ реактор, разработкой которого занимался Центральный научно-исследовательский институт судовой электротехники и технологии. Все вроде бы складывалось удачно...Даже мощность была до 450 кВт, в 1,5 раза больше чем у немцев...
            Ровно год назад президент ОСК Алексей Рахманов заявлял, что наконец-то началось финансирование работы по разработке воздухонезависимой энергетической установки для неатомных субмарин. И опять облом!
            (A b and d na, yes-ah-ah ...)
  5. Subtext April 7 2020 19: 45 New
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    And without VNEU the project is extremely risky. Several hundred OCDs forced them to reorganize into one OCD - pl as a whole. Only those who are in the know can give an assessment.
  6. Vladimir61 April 7 2020 20: 08 New
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    Once they were planning to "turn the river back", but to globally solve the issue of modernizing inland shipping channels - from the Baltic and the White Sea, to the Caspian and Azov, did not dare. Such a river "rocky path" would be in demand by both the civilian and navy. And they wouldn’t chase ships and vessels "For Three Seas" ...
  7. antivirus April 7 2020 20: 23 New
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    again a little spoon! clean-upgrade
    when will 100 thousand t VI “Leaders” go?
    all the cons and cons ... me, maybe they are sent to Shoigu?
  8. Connor MacLeod April 7 2020 20: 38 New
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    Well, why is there such an STAR throughout the Navy ??? Answer people !!! Who is to blame and what to do???
    1. AU Ivanov. April 7 2020 22: 09 New
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      Because when God created discipline, the fleet was at sea. And aviation is in the air.
  9. Scharnhorst April 8 2020 14: 21 New
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    For the Black Sea Fleet, 6 Varshavyanks have already been built, for the Pacific Fleet the same on the ointment, for the DKBF six pieces of “677” are suitable. And there is no need to invent a child prodigy, it is necessary to build and close fleet problems (both at the Black Sea Fleet and Pacific Fleet). Here we win the war, take the trophy “212”, and another 75 years in the “swamp of quiet life”