The enterprise "Zvezdochka" will be engaged in the modernization of "Barracudas"

In the coming years, the Russian Navy should receive several new submarines of different classes and projects. In addition to the construction of new submarines, it is planned to modernize several old ones, increasing their characteristics to the required level. As it became known a few days ago, preparations for the repair and modernization of one of the existing fleet submarines. Severodvinsk Ship Repair Center Zvezdochka began to prepare for the repair of the B-239 Karp multipurpose nuclear submarine.

Recently launched works are carried out under a contract of the Ministry of Defense, concluded at the end of 2012. In accordance with this document, the Zvezdochka enterprise must repair and upgrade both the multi-purpose submarines of the 945 “Barracuda” project that the Navy has. It is expected that after repair, two third-generation submarines will improve their characteristics and due to this they will be able to compare with newer submarines. Repair and modernization of the first will be the boat B-239 "Karp", then in the shop of the plant will lead the submarine B-276 "Kostroma". The work will take several years.

According to the press service of the Zvezdochka enterprise, at present ship repairmen are preparing for the first stage of work - the unloading of nuclear fuel from the submarine reactor. Such a “operation number one” will take some time. By the end of the year, the submarine “Karp” is supposed to be placed in the workshop of the ship-repair plant, after which repair work will begin. In accordance with the contract, the Zvezdochka plant is to transfer the upgraded submarine to the fleet in 2017. The deadlines for completing the repair of the Kostroma boat are still unknown.

According to reports, the repair and modernization of the two submarines of the 945 "Barracuda" project will improve their performance, as well as increase the resource. The life of the boats can be extended by about 10 years, but there is still no precise information on this subject: the final decision will be made later by the Ministry of Defense. It is possible that the boats "Karp" and "Kostroma" after the repair will remain in service for much longer periods.

On the left is the large Pskov submarine of the 945A Condor project, on the right the Kostroma submarine of the 945 Barracuda project. The main visual difference is the shape of the bow of the retractable devices and the conning tower.

Multipurpose nuclear submarines project 945 belong to the third generation. Their construction began in the late seventies. The head submarine "Karp" was laid in the middle of 1979, and was commissioned in September 84-th. The second submarine of the project, the Crab (now Kostroma), was built from 1984 to 1986 for the year and became part of the Northern Fleet in 1987. In the 1998, the Karp B-239 submarine was withdrawn from the fleet for economic reasons. For the next time, the head "Barracuda" was laid up in the city of Severodvinsk. The Kostroma submarine was in reserve in 2000-2008 for years, and was being repaired from 2003. Currently, Kostroma is once again in the combat formation of the Northern Fleet.

Two-body submarines of length 107 m have a surface displacement of 6300 t and a scuba 8200 t. The design is widely used titanium and its alloys. The boats are equipped with a nuclear power plant with OK-650A reactors with a thermal capacity of 190 MW. The power of the main turbo-gear unit is 50 thousand hp. With such a power plant, Barracudas are able to develop surface speeds up to 12,5 nodes and subsea speeds up to 35 nodes. The hull design allows you to dive to a depth of 480 m (working) or 600 m (limit). The crew of the submarines consists of 60 people, autonomy - 100 days.

The armament of the 945 “Barracuda” multi-purpose submarine consists of two torpedo tubes of the caliber 650 mm and four caliber 533 mm. According to various sources, the submarine’s ammunition includes up to 12 65-76 torpedoes or Waterfall anti-missile missile systems launched through torpedo tubes 650 mm. For use with torpedo tubes of caliber 533 mm, there are up to 32 ammunition of various types: USET-80 torpedoes, Squall and Waterfall missiles.

Details of the modernization of "Barracuda" is still unknown. Previously appeared unconfirmed reports, according to which during the repair almost all onboard systems, electronics and weapons will be replaced. Repairs and upgrades will also be a nuclear power plant. Due to the lack of official information, there are different opinions, which, however, may not be confirmed in the future. It is possible that the modernization and submarines of the 945 Ave will use systems and equipment used on submarines of other projects, for example, 885 "Ash". It is likely that as a result of the modernization of the submarine "Barracuda" will receive a new weapon, namely the Caliber missile system.

Until the end of this year, the first of the repaired submarines, the B-239 "Karp", will be brought into the shop of the enterprise, after which work on its repair and modernization will begin. The submarine will return to service approximately in 2017 year. After that, the "Star" will restore the Kostroma B-276 submarine. The deadline for the completion of the Kostroma repair is still unknown and, probably, has not yet been determined.


On the materials of the sites:
http://ria.ru/
http://vz.ru/
http://i-mash.ru/
http://deepstorm.ru/

Comments

[Sakhalininsk]

It is very good that the ships are being taken out of slop puddles. Very good ships that after modernization can more than once add gray hair to western admirals.

[Ruslan 56]

Good news. Cheered up all day.

[Rus86]

tell me if the changes are positive in the situation with the piers of the required parameters? (how to formulate correctly? those that would be comparable to the currently utilized Ural and Admirals, would not rot in the roadstead, just like that ?, after all, if it were properly and properly stored and maintained ... and if there was no second half of the 80s and 90s ... if ...) for the submarine fleet, as far as I know, the situation is similar

[silverwolf88]

Our submarines have good potential for modernization ... it must be used to the full.

[mpa945]

Compared to yesterday’s article, at least Karp and Kostroma were not confused in the text.
And in the photo of Carp and no.
Author! Armament data again from Wiki? Carefully prepare the material

[alekc73]

They are preparing for repair for a long time. The contract was concluded in December 2012, but the repair did not start.

[mpa945]

The question is in the project. Are you ready?

[altman]

Nothing will happen to titanium hulls .. the whole question is in the filling .. I am glad that "Nizhny Novgorod" is in the ranks! And after modernization it will last a long time.
Still, the question is, why are the Krasny Sormov's capacities not involved in the construction and modernization of submarines ..

[Ajent cho]

why the capacities of "Krasny Sormov" are not involved

Yes, misunderstandings as with the Red Sormovo, and with the Falcon (aircraft factory). There were rumors, there is a large percentage of foreign capital - it would be necessary to get rid of dependence first. But this is from the category of OBS.

[Anton Gavrilov]

Is it part of the equipment from Ashen? You cannot put the HACK there in any case from the 885 project — you will have to change the entire nose part and transfer the SLT to the cabin, closer to the center of the hull. You can’t put onboard HAS antennas either, you will have to redo the rugged hull, which it’s not realistic to do it at all. You can’t change the EU too much, the overall characteristics are different, and the meaning of the reactor is almost the same there, I also had to install the TZA. The only 1 output from Yasen is that it will receive a maximum of REV no more.

[mpa945]

Anton!
Onboard antennas are already there. A robust housing for their installation has nothing to do with it.
Replace analog electronics with a new ...
At the same reactor and turbine (at 971), the noise was halved from the first to the last housing. Implement all of these activities is already good.
In general, we read fortunes on coffee grounds. None of us saw the modernization project.

[Anton Gavrilov]

Something is not noticeable there are airborne antennas.
The on-board antennas have a large thickness - it is noticeable on the existing ash circuits that the first compartment is much narrower after it, and this is not due to the contours of the case, but just the need for space for the on-board antennas.
On Yasene-M, by replacing the OK-650В reactor with KTP-6, switching to Mira Mirage, significantly better characteristics of the new equipment, and disproportionately better build quality, the noise level and physical fields can be very significantly reduced.
In general, yes, you need to watch and wait patiently.

[Anton Gavrilov]

Here it is noticeable.

[mpa945]

Anton!
945 is two-hulled. We assume that they are located in the inter-side space.

On Yasene-M, by replacing the OK-650В reactor with KTP-6, switching to Mira Mirage, significantly better characteristics of the new equipment, and disproportionately better build quality, the noise level and physical fields can be very significantly reduced.

Let's wait for at least the completion of the tests to conclude that "incomparably better build quality"

[Boa kaa]

Quote: mpa945

On the same reactor and turbine (on 971), the noise was halved from the first to the last housing.

Hello paul
To you, as a professional, I will tell you: to reduce the noise of the submarine, put a water cannon, as the Americans did on Volka (at Alrosa they worked it out for the 636 project), throw out the GTZA - go to full electromotion, replace the Meduza-2 PGP with a solid polymer , install cascade vibration isolation and screens - and you won't recognize your boat! Or rather, you won't hear!
And as for electronics and weapons, this issue is not even discussed - everything needs to be changed to digital and piezoceramics, and even lead can be converted to lead titanite. The question is how well the modernization project has been worked out and how much money has been allocated for it.

[mpa945]

I completely agree with the question too.
Although of course we dream ... This level of modernization will cost a lot of money.
On the other hand, IF all THIS could be implemented, besides an amazing result in a product, they would have got such an amazing breakthrough in the development of industry.
I think it’s more expensive than money. But what do TAM think? ...

[Anton Gavrilov]

Alas, the jet propulsion is unlikely to be put on it. As far as I know, the creation of a water jet requires a lot of money and a very long and thorough development. But everything else is quite possible and they will be implemented. It’s a pity that Yasene-M has at least the first 2 boats will definitely not switch to electric propulsion ... Although TZA is used, it is rare only at high speed.

[mpa945]

Anton!
"Vodomet" was studied and tested on 671 in the 70s.
He was put on Alrosa.
There is nothing super complicated.
Advantages:
The diameter is smaller, the shaft speed is higher, the main gearbox is smaller, the body shields the pulsations, the straighteners at the "inlet and outlet" optimize the flow on the impeller.
Minus: long "lifetime" of the hydrodynamic wake.
I will not give figures on the effect of application, they did not come across OI.

[Anton Gavrilov]

There are just some difficulties, once again I need long and extensive studies for implementation on each boat - for each boat you need to create your own propulsion. Of the minuses you forgot to mention something: first, problems with the placement of steering wheels begin, secondly, reliability is lower .

[mpa945]

Anton!
The screw is also purely individual.
But not on every side. And for every project. Which is true for Waterjets.

Of the minuses, you forgot to mention something: firstly, problems with the placement of rudders begin

Just the opposite. The straightening device at the inlet smooths out the unevenness of the incoming flow from the "steering group". The flow is more even on the impeller than on the screw.

secondly, lower reliability.

[media = http: // http: //www.uhlib.ru/tehnicheskie_nauki/boevye_korabli_mira_na_rube
zhe_xx_xxi_vekov_chast_i_podvodnye_lodki / pic_93.jpg] The Britons apply. And the data on the statistics have no failures. Because there are no statistics.
But! Considering that the rotating parts are inside the nozzle body, it seems to me that damage is less possible than for a screw.

[Dart2027]

Different fittings - valves, pumps, filters ... In short, what can be replaced without building the boat from scratch.

[Anton Gavrilov]

Well, this is understandable, otherwise it would be essentially a new boat.
Remember my comment under the post about the order for American boats, in which I wrote about the difficulties encountered in the construction of the head boat. I meant that there would clearly be no such problems, and therefore, the overall quality will also be much higher.

[mpa945]

Problems with the lead ship will be for sure. I agree one hundred percent

[Blad_21617]

eh still 705-k would have been repaired by those that remained then the song would have been!

[mpa945]

Do not get excited Vlad, we won’t pull. Equipment powered by 400Hz was not enough.

[Anton Gavrilov]

In fact, all the boats of the 705K project have already been scrapped ...

[sub307]

Here is the phrase: "The construction is widely used titanium and its alloys".
I have always believed that titanium alloys are used in the "construction". But I did not suspect that titanium in its pure form. Maybe what "slept"?

[Bene valete]

The article is both good and sad ...
One side. it seems like a good repair, a return to service, etc., but on the other you understand ... Rubbish is already all from the last century and all this (about repair and modernization) is essentially just support afloat for the simulation of a warship . Yes, and this is not done in fact, chatter alone.
New ships are needed and the faster the better!

[Anton Gavrilov]

You are specifically behind the times .... Nothing is being done there .... Already carried out a defect, and they are preparing the boat for staging in the workshop.

[Boa kaa]

Quote: Bene valete

. Junk is already all from the last century and all this (about repair and modernization)

Are you talking about the case or its contents? If about the contents, then they will just change it. Surely they will put the new antenna off, put the analog signal processing to digital, put the AOKS, change the energy and so on. And about the hull, so amers he still dreams like a pipe dream - they do not have titanium boats. It was only for us to do. Yes, expensive, but weights, corrosion, magnetism, unit loads and yield strength ... The game was worth the candle!

[Smiles to you]

Your concerns, I share ...

[1c-inform-city]

Just returned from Sevastopol! The news, though not the first freshness, is good. May God be done on time. I stood on the ferry for 6 hours. But there was no 12th day on the way back. Inexpensive housing 300 rubles per person. (This is in Kache.)

[capex1]

We urgently need to build up and at the same time accelerate the construction of the fleet of the ocean zone (thereby supporting the image of a superpower), but at the same time we need to build a fleet of near and middle zones at an accelerated pace to protect our own territory. We need to focus on ships (submarine and surface), which will carry on board the most accurate missile weapons. Indeed, in the event of a conflict, a squadron of missile cruisers can very much ruffle a vaunted carrier fleet of a potential enemy (to say the least).

[Maz]

Good luck!

[dmitrij.blyuz]

There are no words.

[Jedi]

Quote: Boa constrictor KAA

It was only for us to do. Yes, expensive, but weights, corrosion, magnetism, unit loads and yield strength ... The game was worth the candle!

"NAM" as I understand it -sssr. and when we are enthusiastically told that they will change the "stuffing" on the boat, with my narrow-minded mind I understand by the word "stuffing" - electronics. and now the question to fill in: whose production is the electronics ???

[Anton Gavrilov]

Ours is still.

[mpa945]

This is just

near mind

under the word "filling"

I ... understand - electronics

But in reality these are weapons systems. And it will be domestic production.
And there will also be a bunch of mechanisms, and also not over the puddles made.
That no one has to solve any problems, no one claims.
The presence of problems requires their solution.
In your opinion is not worth it?

[Evgeniy667b]

It only remains to restore production at the Krasnoye Sormovo plant, which built the Barakuda, then it will be quite good. And then "Zvezdochka" is not able to meet the current needs of the Navy.