Construction of sea minesweepers of project 12700 “Alexandrite”

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Construction of sea minesweepers of project 12700 “Alexandrite”
Laying down ceremony for the sixth serial minesweeper "Lev Chernavin", July 24, 2020


Since the beginning of the last decade for the naval fleet Russia is building modern mine defense ships/sea minesweepers of Project 12700 “Alexandrite”. To date, seven such ships have been added to the Navy's operational inventory, and factory sea trials of the eighth recently began. Several more buildings are already under construction or at least under contract. It is assumed that in the distant future the number of “Alexandrites” will increase significantly.



Project and plans


The promising project of the minesweeper “12700” or “Alexandrite” was developed in the XNUMXs at the Almaz Central Marine Design Bureau (St. Petersburg). The goal of the project was to create a mine defense ship capable of combating modern foreign-made naval mines and installing its own mines. Such a minesweeper was intended to operate in the base and near sea zones.

Etc. 12700 was developed with extensive use of new solutions, technologies and materials. Thus, to reduce magnetic fields, the ship’s hull is made in the form of a monolithic part made of composite material. It also provided for the use of modern mine action equipment and other units of domestic and foreign production.

The contract for the first ships of the new project appeared in the early 22s. In accordance with it, on September 2011, XNUMX, the lead minesweeper was laid down. Subsequently, the Ministry of Defense issued several more similar orders to industry, represented by the United Shipbuilding Corporation, to increase the size of the series under construction.


"Lev Chernavin" during preparation for testing, autumn 2023.

The Navy command several times revealed plans for the construction of the Alexandrites and showed great optimism in this regard. Thus, in 2015 it was reported that by 2025 the fleet would receive 10 such pennants, and by 2050 another 12700 ships could be built under Project 20 and its future modifications. At the end of 2016, the information was clarified. At that time, there were contracts for 8 minesweepers, and long-term plans were expanded to 40 units.

The construction of ships of Project 12700 is not simple - both technically and due to problems with imported components - but it continues successfully and solves the assigned problems. To date, the Navy has received seven such minesweepers, and another one has already entered sea trials. It will be handed over to the customer in the coming months.

The next three units are already under construction and are in various stages. There is information about the issuance of an order for the following minesweepers. Based on the results of the implementation of existing contracts, the fleet will have 18-20 Alexandrite-class ships by the beginning of the next decade or later. It is quite possible that by this time new orders will appear and construction of the next pennants will begin.

The construction of “Alexandrites” has been carried out by the Sredne-Nevsky Shipyard (St. Petersburg) from the very beginning of the program. All orders for such ships are currently issued only to him. In addition, the Navy plans to order part of the minesweepers to the Amur Shipyard (Komsomolsk-on-Amur). However, in 2018, the implementation of this idea was postponed to the indefinite future.


The hull of the minesweeper "Alexandrite" at an early stage of production

During construction


The lead minesweeper, project 12700, was named “Alexander Obukhov” and was laid down in September 2011 at the SNSZ. During its construction, the company had to work out the process of manufacturing a solid composite body and then saturating it with mechanisms and assemblies. After completion of the lead ship, it was planned to move on to series production.

Mastering new technologies turned out to be not the easiest thing, and construction was delayed. “Alexander Obukhov” was launched in June 2014. By this time, the project encountered additional difficulties - the French contractor refused to supply a number of units due to sanctions. However, in July 2015, the minesweeper went to Baltiysk to undergo all the necessary tests. On December 9 of the following year, the customer signed the acceptance certificate. The ship became part of the Baltic Fleet.

By this time, the first production ship under the name “Georgy Kurbatov” was laid down and built at the SNSZ. Its construction on the slipway lasted from April 2015 to September 2020. As in the case of the lead minesweeper, the construction time was negatively affected by the lack of foreign components and the need to replace them with available products. However, in 2020-21. the ship passed tests, and in August 2021 it was accepted into the Black Sea Fleet.

In January, April and December 2017, three new minesweepers were laid down - “Ivan Antonov”, “Vladimir Emelyanov” and “Yakov Balyaev”. Just as rhythmically in 2018-20. they were launched for completion. The Navy received Ivan Antonov and Vladimir Emelyanov at the beginning and end of 2019; the ships were sent to serve as part of the Black Sea Fleet. In December 2020, an acceptance certificate was signed for the Yakov Balyaev, intended for the Pacific Fleet.


Removing the finished body from the mold

In July 2018, the laying of the fifth serial minesweeper “Petr Ilyichev” took place, and about a year later the SNSZ began construction of the next hull, “Anatoly Shlemov”. In April and November 2021, they were launched for completion and subsequent testing. They were accepted by the customer in November and December last year; The ships are included in the Pacific Fleet.

Now all the attention of shipbuilders is focused on the seventh serial minesweeper "Lev Chernavin", laid down in July 2020. On April 14, 2023, it was launched, and in mid-October it entered factory sea trials. It is expected that these activities will take place in the coming months, and no later than the beginning of 2024, the customer will take delivery of the new minesweeper. He will serve in the Baltic.

Three more ships, Afanasy Ivannikov, Polyarny and Dmitry Lysov, are at various stages of construction, laid down in 2021, 2022 and 2023. It was previously reported that these minesweepers will be built according to a modernized version of Project 12700. The modified “Alexandrites” will be longer than their predecessors and will receive an updated complex of mine defenses. However, official sources have not yet specified which version of the project the three new minesweepers are being built according to.

In the fleet structure


Thus, to date, shipbuilders from St. Petersburg have handed over to the Navy seven mine defense ships of the new Project 12700, and the eighth is expected to be accepted soon. One of the built ships serves as part of the Baltic Fleet, and Lev Chernavin should join it. The Black Sea and Pacific fleets received three pennants each. It is assumed that the next ships in the series will go to serve in the Northern Fleet.


Head "Alexandrite" - "Alexander Obukhov"

According to known data, the mine-sweeping forces of the Russian Navy currently have approx. 45 minesweepers of different classes and projects. This number includes 7 Alexandrites built and commissioned, as well as 8 sea minesweepers of other projects. The remaining ships belong to the class of basic minesweepers and have a different level of characteristics.

It is curious that by now the ships of Project 12700 have become the most popular sea minesweepers in our fleet. The second most numerous are the pennants of Project 266M/ME “Aquamarine”. There are also small quantities of minesweepers pr. 12660 “Rubin” and pr. 02668 “Agat”. The newest sea minesweeper before the appearance of "Alexander Obukhov" was the "Vice Admiral Zakharyin" ship of the "Agat" type from the Black Sea Fleet, which began service in 2008.

The ships of the Alexandrite project have a number of obvious advantages over other sea minesweepers of the Russian Navy. First of all, they are distinguished by their novelty, which determines superiority in technical characteristics and operating capabilities. In addition, new-built ships retain almost all of their service life and will be able to continue serving for the next few decades.

In recent years, with the commissioning of new serial ships, the Alexandrites have become the most popular sea minesweepers in the Russian fleet. So far, the numerical superiority is small, but in the coming years this situation will change significantly, and in the future this trend will manifest itself even more clearly. The capabilities of mine sweeping forces will change accordingly, which will be able to write off outdated pennants and replace them with modern ones.


The ship "Yakov Balyaev" on the day of acceptance by the fleet, December 26, 2020

Fleet of the future


The domestic shipbuilding industry, represented by USC and SNSZ, has overcome all the difficulties of the past and launched full-fledged serial construction of new mine defense ships, Project 12700 Alexandrite. The customer has already received seven such ships, and their number will continue to grow in the coming years. In addition, new contracts are planned for the long term, as a result of which the total number of Alexandrites may reach several dozen.

The appearance of new ships of Project 12700 will allow our Navy to carry out a full modernization of mine-sweeping forces as part of all strategic formations. At the same time, over time it will be possible to abandon old types of ships and completely switch to modern Alexandrites, incl. with an increase in the size of this component of the fleet. Both quantitative and qualitative indicators will also increase significantly.

To obtain such results, the industry will have to continue the construction of minesweepers, as well as develop and complete modernized versions of the original Project 12700. Events and achievements of recent years show that the Almaz Central Marine Design Bureau, SNSZ and USC are generally ready to solve such problems, and the future of mines -tral forces gives reasons for optimism.
23 comments
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  1. +6
    2 November 2023 06: 11
    So far, the numerical superiority is small, but in the coming years this situation will change significantly, and in the future this trend will manifest itself even more clearly.
    I'm sorry, what? Numerical superiority? This means ships of old projects of the Russian Navy, or ships of a potential enemy, I don’t understand.
    1. +3
      2 November 2023 07: 13
      Most likely ships of old designs.
      1. +2
        2 November 2023 23: 13
        Klimov made a detailed analysis of both the Alexandrites themselves and the state of the mine forces of the fleet as a whole. And this is a sad state of affairs, and the worst thing is that the fleet command does not recognize this and therefore is not going to correct it.
  2. +12
    2 November 2023 07: 18
    How, this story is hard to read, a specialist in the OVMB and the Navy.
    The most important distinguishing feature of the Alexandrite minesweepers is that its hull is made of fiberglass. Project 12700 provides for the formation of a mine countermeasures circuit using the latest highly efficient hydroacoustic stations located both on the ship itself and on remote-controlled and autonomous underwater vehicles to search for and destroy sea mines in the coastal and offshore zones. He also carries out trawling in the traditional way.
    1. +4
      2 November 2023 10: 05
      Quote: Sergey39
      Project 12700 provides for the formation of a mine countermeasures circuit using the latest highly efficient hydroacoustic stations located both on the ship itself and on remote-controlled and autonomous underwater vehicles to search for and destroy sea mines in the coastal and offshore zones. He also carries out trawling in the traditional way.
      I would like the author to describe this in the article. And to you+ hi
      And it turns out, according to the article, that the main advantage of these minesweepers is that they are simply new, in terms of construction fellow
    2. -1
      2 November 2023 19: 54
      How, this story is hard to read, a specialist in the OVMB and the Navy.
      The most important distinguishing feature of the Alexandrite minesweepers is that its hull is made of fiberglass. Project 12700 provides for the formation of a mine countermeasures circuit using the latest highly efficient hydroacoustic stations located both on the ship itself and on remote-controlled and autonomous underwater vehicles to search for and destroy sea mines in the coastal and offshore zones. He also carries out trawling in the traditional way.

      It turns out that in modern warfare these minesweepers in this form are ineffective?
  3. +4
    2 November 2023 07: 39
    Minesweepers are one of the most knowledge-intensive ships of the Navy. Ongoing modernization is needed in terms of search and anti-drone capabilities.
  4. +2
    2 November 2023 09: 18
    Only the Sredne-Nevsky Shipyard is engaged in the construction of minesweepers. Only, he has the competence to produce monolithic fiberglass hulls. And, the displacement of the minesweeper is comparable to the displacement of the Karakurt and Buyan MRKs.
  5. -1
    2 November 2023 10: 01
    everything is very slow, it feels like our private entrepreneurs are building ships together with the self-employed on a patent...
  6. +4
    2 November 2023 10: 06
    By this time, the first production ship under the name “Georgy Kurbatov” was laid down and built at the SNSZ. Its construction on the slipway lasted from April 2015 to September 2020. As in the case of the lead minesweeper, the construction time was negatively affected by the lack of foreign components and the need to replace them with available products.
    A fire at the plant had a negative impact on the construction time of this minesweeper. The whole building burned out fellow
  7. +8
    2 November 2023 10: 45
    I read the material and was happy, the respected author made me 50 years younger. Thank you
    Cool course work by a cadet of two Orders of the Red Star (USSR and Czechoslovakia) of the Lvov Higher Military-Political School of the USSR Ministry of Defense! Or was I mistaken, the work of a cadet at the Kyiv Higher Military-Political School of the USSR Ministry of Defense?
    "There are also small quantities of minesweepers pr. 12660 "Rubin" and pr. 02668 "Agat." Can you provide specific numbers? "Rubinov" in the Russian Navy: for 2 ocean fleets, for the Black Sea Fleet (with SAR) and the Baltic Fleet, for a flotilla - 2 (TWO) ships. "Agate" - 1 (ONE). How many new minesweepers came to the Northern Fleet of the Russian Navy from 1995 to 2023? Correct answer: 0 (ZERO).
    "In addition, new contracts are planned for the long term, as a result of which the total number of Alexandrites may reach several dozen." I would really like to see at least 6 (SIX) “Alexandrites” in all Russian fleets. But I’m afraid that by then they will be as formidable as the “Albatross” today, which have been subject to absenteeism at the cutting bases for many years.
    1. +3
      3 November 2023 10: 45
      Quote: Tests
      I would really like to see at least 6 (SIX) “Alexandrites” in all Russian fleets.

      At least in the Northern Fleet and Pacific Fleet. And even with a normal mine action complex.
      And to them is also a reconnaissance and mine control ship. About 40 years ago, the French had this theme: a mine-resistant ship without weapons, but with a powerful sonar, which regularly takes a picture of the bottom in the area of ​​​​the exit from the base, and then on the shore it is compared with previous surveys and suspicious new objects are checked with the usual VARIANTS.
  8. +6
    2 November 2023 10: 58
    The ships of the Alexandrite project have a number of obvious advantages over other sea minesweepers of the Russian Navy. First of all, they are distinguished by their novelty, which determines superiority in technical characteristics and operating capabilities.

    The author prudently decided not to compare “Alexandrites” with foreign TS. wink
    Klimov, remember, said a lot of kind words about the Inspector Mk 12700 anti-mine system installed on the 2. Starting with the fact that the design of the technical control unit and its filling was carried out so much in parallel that, in violation of the technical specifications, a standard unmanned boat cannot be placed on the deck of the ship.

    And it is extremely difficult to solve this problem in a way traditional for ships with a traditional hull (by cutting in a compartment or changing the geometry of the aft part), on a power supply unit with a solid composite hull - you need to completely recalculate the hull and redo the matrix.
    As for the system itself, then...
    ...this project is difficult to classify as a successful product of the company - since 2008 it has not been accepted into service with the French Navy, and has not had commercial success in the market (except for proposals to supply the BEC Inspector Mk 2 to the Russian Navy that arose several years ago) .

    Systematic mine action operations with the BEC Inspector Mk 2 can only be carried out in the form of mine reconnaissance. Due to the high cost of NPA destroyers, solving the problem of eliminating a detected mine threat, with any significant mine laying, using the BEC Inspector Mk 2 is impractical and impossible.
    1. +3
      2 November 2023 11: 33
      Indeed, there was an article about these minesweepers; the French sold us unnecessary junk. The trouble is that there is no modern one......and this whole type of ship does not inspire optimism, as the big media presents it to us. sad
  9. +4
    2 November 2023 22: 18
    “The events and achievements of recent years show that the Almaz Central Marine Design Bureau, SNSZ and USC as a whole are ready to solve such problems, and the future of the mine-sweeping forces gives reasons for optimism.”
    To be honest, they don’t give it to me.
    USC is generally a rather strange company. Which lives by some of its own rules. Plus, as I understand it, its chairman was removed, perhaps even closed. Why suddenly?
    Now some bankers rule here...
    In short, all these insidious games do not change the situation.
    Personally, at my factory, everything is sad. Although we even have a plastic workshop (half-dead sudocomposite).
    What optimism?!.. The North Military District is in progress, the plant is without work. I do not understand what is going on request
  10. +2
    3 November 2023 09: 06
    Thus, to reduce magnetic fields, the ship’s hull is made in the form of a monolithic part made of composite material.

    How to repair this monolith?
    1. +2
      3 November 2023 17: 30
      Apparently there is no operating experience yet. In Soviet times, fiberglass hulls were also made, but, based on operating experience, they were abandoned. Wood was often used as a non-magnetic material. Simpler hull construction technologies can solve one of the main problems - the need for a significant and rapid increase in the number of minesweepers for all fleets through the use of shipbuilding plants in the Black Sea Fleet, Northern Fleet and Pacific Fleet. The construction plans announced in the article are clearly insufficient. Dozens of modernized minesweepers are needed in all fleets.
  11. +2
    3 November 2023 20: 01
    Alexey RA (Alexey), dear, don’t give ideas to USC, please...They LIVE the “doves of peace” series. True, the "Caliber" was never launched from the "Kotov" to Chizhu from the White Sea, they were afraid to sink the ship, something was not calculated with modularity. And you propose to develop a new ship, something that has never happened in the Russian Navy, and launch it into series. They will design ZhEZH for 7-8 years and build the main one for 5 years. Maybe it would be better if something with anti-aircraft and air defense functions (taking into account the experience from 24.02.2022/6/12 and later in the Northern Azov region and Northern Black Sea region) would be born in the Far East in 12-20 ships, and for the Northern Fleet, although there would be the same number. Yes, to ensure the entry of nuclear submarines into the seas, at least 38-XNUMX new helicopters for the Northern Fleet and Pacific Fleet, and a squadron for each fleet, at least something new, like the Il-XNUMX...
    1. 0
      4 November 2023 16: 47
      wow you took a swing laughing a dozen ships there, a dozen here, what new helicopters? And about new variations of the Il-38, this is from the realm of unscientific fiction....
    2. 0
      7 November 2023 10: 35
      Quote: Tests
      And you propose to develop a new ship, something that has never happened in the Russian Navy, and launch it into series. They will design ZhEZH for 7-8 years and build the main one for 5 years.

      Yes... but in the end they will still return to the proven option: a trawler with a side-view BUGAS.
      Something similar was designed for the USSR Navy as part of the Argus program, albeit in an anti-submarine version (mini-Stallworth from a trawler), but was nailed down by Gorshkov along with Khalzan.
      Quote: Tests
      yes, a squadron for each fleet, at least something new, like the Il-38..

      Pfff... no problem: they will rename the units into squadrons, and here you have two squadrons of 4 vehicles each. laughing
  12. +1
    9 November 2023 05: 30
    There is a nuance here, and the author, out of ignorance, did not say anything about it.
    The 12700 minesweepers were to be equipped with a French mine detection system from ECA Robotics. They even signed a contract... well, then you can guess for yourself.
    What is being installed now is a compromise, another, already outdated, Soviet-designed modernization.
  13. 0
    26 January 2024 14: 54
    The article is pure water, about nothing. The quantity and timing of construction and delivery could be given in one tablet. Two more lines about the monolithic composite body. That's all. Not a word was said about weapons, equipment, search and mine countermeasures. How and with what will these ships of the Fleet of the Future carry out their combat mission? Just don't say that this is secret information!
    It would be better not to write anything on this topic at all. It wouldn't be so sad.
  14. 0
    21 February 2024 20: 58
    sea ​​minesweepers of project 12700 "Alexandrite". To date, seven such ships have been added to the Navy's operational inventory, and factory sea trials of the eighth recently began.


    The Navy has 14 naval bases.
    To defend one naval base, as well as the adjacent sea area, it is necessary to have a brigade of four to six minesweepers...
    The simplest calculations show that the Navy needs about a hundred minesweepers, and with their construction at the current pace, the required number of minesweepers will never be achieved.
    There are no prospects of obtaining even half of the required number of minesweepers.