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    Russian Nuclear Submarine Force: Discussion

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    kvs
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    Re: Russian Nuclear Submarine Force: Discussion

    Post  kvs on Sun Aug 09, 2015 5:25 pm

    GarryB wrote:Also isn't sound a log scale so the 15 Db difference between Akula and Virginia make the Virginia 150 times quieter?

    BS.

    You are quite right, db is based on log base 10.

    For amplitude, A, the formula is 20*log_10(A/A0) dB. So the ratio between 110 dB and 95 dB is

    10^(110/20) / 10^(95/20) = 316228/56234 = 5.6

    So the Akula is supposedly almost six times noisier than the Virginia. That would be in the blogger's wet dreams.






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    Re: Russian Nuclear Submarine Force: Discussion

    Post  Austin on Sun Aug 09, 2015 5:46 pm

    Every new gen Sub reduces noise level by 5-6x times , The difference between noise level of Victor 3 and Akual 1 is around 3x time and between Akula1 and Akula 2 its around 3x times.

    Ruby General Director did mentioned that borei was 5 times quiter than Akula and Oscar2

    ПЛ пр.955 имеют в 5 раз меньшую шумность, чем ПЛА пр.971 и пр.949А (заявление генерального директора ЦКБ "Рубин" А.А.Дьячкова, 21.12.2010 г.)

    5 times lower translates to translate to 7 dB reduction.

    So Virginia being 6 times lower than Akula wont be surprising as there is generation jump.

    I would think Yasen would achieve similar Noise Level as Virginia

    Since 955A Borei would further achieve noise reduction you can expect 3-4x reduction in noise level

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  Austin on Sun Aug 09, 2015 5:58 pm

    Can Russian strategic submarines survive at sea? The fundamental limits of passive acoustics

    http://scienceandglobalsecurity.org/archive/sgs04miasnikov.pdf

    nastle77
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    Yankee notch project 667AT

    Post  nastle77 on Tue Aug 11, 2015 2:45 am

    Can anyone tell me when the following submarines were converted to the Yankee notch configuration ?
    http://russianships.info/eng/submarines/project_667a.htm
    this above link the information reads as
    K-26 13.11.1983-1985,
    K-253 17.05.1984-20.12.1985,
    K-395 24.06.1988-30.12.1991,
    K-423 16.10.1978-27.12.1987, «Zvezda», Bolshoy Kamen` –
    K-236 с 23.11.1979-not completed,
    K-399 с 18.01.1982-not completed,
    K-408 8.07.1983-10.05.1984.

    Does this mean that K-26, K-253 K-423 and K-408 were converted by 1990 ?

    Or am I reading it wrong

    artjomh
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    Re: Russian Nuclear Submarine Force: Discussion

    Post  artjomh on Tue Aug 11, 2015 5:04 pm

    nastle77 wrote:Can anyone tell me when the following submarines were converted to the Yankee notch configuration ?
    http://russianships.info/eng/submarines/project_667a.htm
    this above link the information reads as
    K-26 13.11.1983-1985,
    K-253 17.05.1984-20.12.1985,
    K-395 24.06.1988-30.12.1991,
    K-423 16.10.1978-27.12.1987, «Zvezda», Bolshoy Kamen` –
    K-236 с 23.11.1979-not completed,
    K-399 с 18.01.1982-not completed,
    K-408 8.07.1983-10.05.1984.

    Does this mean that K-26, K-253 K-423 and K-408 were converted by 1990 ?

    Or am I reading it wrong

    Only K-253 (1989), K-395 (1992) and K-423 (sometime between 1988 and 1992).

    K-26 was supposed to be converted into a minisub mothership, but conversion was never finished.

    236, 399 and 408 were never completed as cruise missile carriers.

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  zg18 on Tue Aug 11, 2015 11:52 pm

    BS-64 "Podmoskovye" launched today at Zvezdochka

    http://rusnavy.com/nowadays/strength/submarines/bs-64/index.php?print=Y



    It has been converted as a mother ship for deep sea operations.




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    Re: Russian Nuclear Submarine Force: Discussion

    Post  artjomh on Wed Aug 12, 2015 12:14 am

    Didn't think BS-64 would ever make it. Glad to be proven wrong.

    The model on top is a modified Delta III, btw

    Here are two easy ways to tell Delta III and Delta IV apart:

    1) D3 has elongated ellipsoid bow. D4 bow is more rounded

    2) D3 has square flooding vents, D4 has "slit" vents.

    Those are the two really obvious ones.

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  nastle77 on Wed Aug 12, 2015 6:13 pm

    artjomh wrote:
    nastle77 wrote:Can anyone tell me when the following submarines were converted to the Yankee notch configuration ?
    http://russianships.info/eng/submarines/project_667a.htm
    this above link the information reads as
    K-26 13.11.1983-1985,
    K-253 17.05.1984-20.12.1985,
    K-395 24.06.1988-30.12.1991,
    K-423 16.10.1978-27.12.1987, «Zvezda», Bolshoy Kamen` –
    K-236 с 23.11.1979-not completed,
    K-399 с 18.01.1982-not completed,
    K-408 8.07.1983-10.05.1984.

    Does this mean that K-26, K-253 K-423 and K-408 were converted by 1990 ?

    Or am I reading it wrong

    Only K-253 (1989), K-395 (1992) and K-423 (sometime between 1988 and 1992).

    K-26 was supposed to be converted into a minisub mothership, but conversion was never finished.

    236, 399 and 408 were never completed as cruise missile carriers.

    Thanks
    Very Happy

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  Austin on Wed Aug 12, 2015 8:27 pm

    http://www.armscontrol.ru/subs/snf/snf03221.htm

    I realised Eugene Miasnikov article on Noise Level for Akula was comparing the Akula-1 noise level or even at best 971U coz in 1995 the Akula-2 was not really operational and not to mention the Gepard which are given the designation of Akula-3

    I think Akula class got some significant noise reduction between Vepr which is Akula-2 and Gepard class , So the figures for Akula might not be so relevant and perhaps we are looking at much quiter sub

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  George1 on Fri Aug 21, 2015 2:25 am

    Visual characteristics of the combat readiness of naval strategic nuclear forces of Russia

    Photos nuclear submarine of strategic purpose (SSBN). 31st submarine division of the Northern Fleet of the Russian Navy (pictures are made in early August 2015). As can easily be seen in the pictures in the base Gadzhiyevo are 5x SSBNs - 4 of project 667BDRM (K-51 "Verkhoturye", K-84 "Yekaterinburg", K-18 "Karelia", K-407 "Novomoskovsk") and the new K-535 "Yury Dolgoruky" Project 955 (till now not to start combat duty). Given the fact that the SSBN K-114 "Tula", Project 667BDRM, is in average repairs at the head office of JSC Zvezdochka "in Severodvinsk, it can be concluded that in the sea on active service at the time of the photo shoot was only one boat in this division, K-117 "Bryansk", Project 667BDRM.

    Thus, these images show that 80 deployed strategic delivery vehicles (ballistic missiles) and 352 deployed nuclear warheads (in other words, 15.5% of the total number of carriers and 22.25% in the number of deployed nuclear warheads of the strategic nuclear forces of Russia) were stationary state of the cluster in the form of virtually unprotected in one place. This is a clear example of the level of combat readiness and combat the real value of the whole naval strategic nuclear forces (SSBNs) of Russia, which spent astronomical means. It is obvious that one assured destruction of enemy nuclear warheads 352 Nuclear land-based ballistic missiles RVSN is impossible in principle.

    Recall that the US Navy is also in very low estimate readiness and the degree of operational voltage Russian SSBNs - According to our blog, according to Naval Intelligence, the Russian nuclear missile submarines of strategic purpose made in 2012, only five exits on combat patrol that, apparently, it does not allow to maintain the continuity of the combat patrol at least one boat. For comparison, the nuclear missile submarines of the US Navy in 2012, made 28 exits on combat patrol, while in 2012, the sea is constantly on duty was an average of eight nuclear missile submarines of the US Navy.


    "Panther" in the company of five SSBNs (the fifth is almost invisible), Hajiyev 01.01-08.08.2015

    Now the bad news. It is in the basis of five SSBNs simultaneously suggestive. Assuming that one of the sevenSSBNs is still on combat patrols ("Tula" - repairs to the "star"), KOH our northern groups NSNF is only 0.14 (0.33 instead of desirable or close to the ideal of 0, 5). On the one hand, it may seem not so important: the launch range SLBM R-29RMU2 "Sineva" 11,500 km (Reference 2), to Washington - "only" 6,740 km away, while San Frantsisko- 7950 km, though, that all his ammunition BDRM able to release a "queue" for 3.5 minutes. (14 sec. Between starts, both during the operation of the legendary "hippo-2" in 1991 - Reference 3). E., If the will of the Russian Federation suffered a nuclear attack from the US, 15-20 minutes American ICBMs (at v = 7 km / s). SSBN 31st Division who are on duty, it would be enough to shoot out in answer.

    On the other hand, one of the potential aggressor may SSBN patrol (and, most likely, patrols) in the Barents and Norwegian Sea, in which some 500-1000 km from Gadzhiyevo (1.2-2.4 min. Flight SLBM). In this case, 50% of the marine component of the nuclear triad of the Armed Forces will be destroyed by a single warhead purely preventive (in the best case, having to spend no more than half the staff of ammunition). For complacency can certainly look for excuses in the absence of threat period (relying on SVR) and ready in case anything happens quickly out to sea (including medium repairs).


    "Karelia" and "Yekaterinburg," Hajiyev, 01.01-08.08.2015


    Yury Dolgoruky", Hajiyev 01.01-08.08.2015


    "Novomoskovsk" and "Verkhoturye" Hajiyev, 01.01-08.08.2015


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    Re: Russian Nuclear Submarine Force: Discussion

    Post  artjomh on Fri Aug 21, 2015 1:09 pm

    George1 wrote:Now the bad news. It is in the basis of five SSBNs simultaneously suggestive. Assuming that one of the sevenSSBNs is still on combat patrols ("Tula" - repairs to the "star"), KOH our northern groups NSNF is only 0.14 (0.33 instead of desirable or close to the ideal of 0, 5). O

    Soviet Navy never had an ops tempo of 50%. It was always around 20-25%

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  max steel on Tue Aug 25, 2015 6:19 pm

    Kremlin’s New Sub: Russians Are ‘Far More Innovative’ Than US Ever Was

    News that Russia is testing the latest addition to its underwater fleet of war machines, the BS-64 Podmoskovie nuclear submarine, have apparently left western analyst wondering what the watercraft is capable of while on months-long missions in the deep waters of the world ocean.

    The BS-64, previously known as K-64, is not a new sub, but a refurbished Project 667BDRM ballistic missile submarine (NATO reporting name: Delta-IV) that spent over 15 years at a repair plant located in the Russian port city of Severodvinsk. Laid down in 1982, it was commissioned four years later and remained in service until 1999.

    The Podmoskovie is capable of carrying a crew of 135 people and is armed with 16 R-29RMU Sineva liquid-fueled ballistic missiles. It has been assigned to Russia’s Northern Fleet.The 550-foot sub powered by two nuclear reactors was converted into a vessel designed to conduct scientific research, as well as a carrier for nuclear deep-water stations, including the top secret Losharik sub.

    The new section allows the submarine to dock and undock deep-water vessels and houses a compartment for the crew and a research unit.The BS-64 “appears to be part science vessel, part spy ship, part commando transport, and part ‘mothership’ for mini-subs and drones. But no one outside of the Kremlin and the Moscow’s future crew knows for sure,” defense analyst David Axe observed in an article titled “Russia’s Mysterious New Submarine.”

    Norman Polmar, an expert focusing on naval and intelligence issues, fueled keen interest for the Podmoskovie by cautioning against underestimatingRussian engineers. “These guys are far more innovative than we ever were,” Axe quoted Polmar as saying. The naval expert who has advised the US government on submarine strategy speaks from experience since he has been to the Russian design bureaus tasked with developing submarines.

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  George1 on Sat Sep 05, 2015 2:24 am

    Repair and modernization of six 6 unclear submarines in Far East Plant "Zvezda"


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    Re: Russian Nuclear Submarine Force: Discussion

    Post  George1 on Sat Oct 03, 2015 4:24 am

    Russia Unveils Plans to Modernize Nuke-Powered Submarines

    Russia is modernizing 12 nuclear-powered submarines as part of an ambitious project to extend the life of the vessels by another 20 years, according to Russian Defense Minister Sergei Shoigu.

    Six of the submarines are undergoing repairs and upgrades at Zvezda shipyard at Bolshoy Kamen on Russia's Pacific coast.

    According to navy and shipyard representatives, the upgrades include new missiles and other weapons. The work aims to put the submarines on the same technological level as Russia's next-generation nuclear-powered boats, such as the new Project 885M Yasen-class submarines.

    The six boats reportedly include Schuka-B/Project 971 Akula-class nuclear-powered attack submarines and Antyey/Project 949A Oscar II-class guided-missile submarines that were built in the late 1980s and early 1990s.

    Three of the six subs reportedly are receiving new anti-ship cruise missiles.


    The modernization program has left current force levels as low as nine active submarines across the fleet.

    Read more: http://sputniknews.com/russia/20151002/1027942520/russia-submarine-nuclear-sergei-shoigu.html#ixzz3nT2eTQOJ


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    Re: Russian Nuclear Submarine Force: Discussion

    Post  George1 on Fri Dec 18, 2015 10:15 am

    Russia starts developing 5th generation submarines

    ST. PETERSBURG, December 18. /TASS/. The Rubin Central Design Bureau for Marine Engineering is carrying out design work on a new generation of submarines in cooperation with the institutes of the Russian Navy, Rubin Head Igor Vilnit said on Friday.

    "Our bureau is carrying out design work on the next series [of submarines]. We are working together with the Navy’s institutes. In compliance with the cycle of building, operating and de-commissioning vessels, such works have been planned and are under way," he said.

    According to Vilnit, each project will envisage building a whole series of vessels with the gradual improvement of their characteristics.

    "The number of projects as such will be minimized as a result of standardizing and installing serial equipment," he added.

    "First, it will be Borei-A, then Borei-B and so on. The same principle will apply to the non-nuclear-powered fleet," the Rubin design bureau head said.

    Fourth-generation nuclear and non-nuclear submarines have undergone substantial trials in the Navy and have fully confirmed their characteristics, he added.

    The Rubin design bureau currently plans to complete the 636.3 submarine series and also hold trials in the North and the Baltic Sea, he said.

    "Much attention will be paid to building the Borei-A-class lead submarine. The vessel is at the corresponding stage of its construction. Certain new properties have been given to it," Vilnit said.

    The Borei-class submarines have undergone substantial trials this year, including during their passage to the Pacific Fleet, the Rubin design bureau head said.

    "The equipment meets all the requirements set to it," he added.

    This year, the Admiralty Wharves Shipyard in St. Petersburg in northwest Russia has delivered two Project 636.3 submarines to the Black Sea Fleet, the head of the Rubin design bureau said.


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    Re: Russian Nuclear Submarine Force: Discussion

    Post  TheArmenian on Wed Dec 30, 2015 10:52 pm

    Status of every single Russian Nuclear Submarine:

    http://eagle-rost.livejournal.com/592457.html

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  artjomh on Wed Dec 30, 2015 11:06 pm

    TheArmenian wrote:Status of every single Russian Nuclear Submarine:

    http://eagle-rost.livejournal.com/592457.html

    Deep Storm is an amazing website.

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  George1 on Thu Dec 31, 2015 12:06 am

    A lot of Akulas are in repair (about 6 of them). There will be 8 Oscars in total when their repair will be completed. Victor III class subs will be the first of old classes that will be withdrawn


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    Re: Russian Nuclear Submarine Force: Discussion

    Post  Big_Gazza on Thu Dec 31, 2015 2:52 am

    artjomh wrote:
    TheArmenian wrote:Status of every single Russian Nuclear Submarine:

    http://eagle-rost.livejournal.com/592457.html

    Deep Storm is an amazing website.

    Agreed 100%, but exceptionally frustrating for us non-Russian speakers... The pages are graphics rather than text, so we can't even copy and paste into a translator... Oh, the pain...

    Yes, I need to learn to read Russian, but #$%& I'm 50 and a grumpy old Engineer who has enough to do as it is... Very Happy

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  Big_Gazza on Thu Dec 31, 2015 3:03 am

    TheArmenian wrote:Status of every single Russian Nuclear Submarine:

    http://eagle-rost.livejournal.com/592457.html

    If one takes this list at face value and assumes that current in-service units still have significant service life remaining, by 2020 the Russian nuclear sub fleet would comprise of:

    SSBN
    Project 955/955A: 7-8
    Project 667BDRM: 6
    Project 667BDR: 1-3 (assuming some retirements)

    SSGN/SSN
    Project 855/855A: 5-6
    Project 949A: 8
    Project 971: 10
    Project 945/945A: 4
    Project 671RTMK 1-4 (assuming some retirements)

    This is vastly more optimistic than I had expected, particularly given a decent number of 949A/971 will undergo deep modernisation, and is certainly not the doom & gloom scenario that our sh!t-eating MSM media like to throw around.

    I expect that actual delivery schedules will blow out to the right (as they always do in just about any human endeavour) but it is encouraging. russia

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  Svyatoslavich on Thu Dec 31, 2015 3:10 am

    Big_Gazza wrote:
    artjomh wrote:
    TheArmenian wrote:Status of every single Russian Nuclear Submarine:

    http://eagle-rost.livejournal.com/592457.html

    Deep Storm is an amazing website.

    Agreed 100%, but exceptionally frustrating for us non-Russian speakers...  The pages are graphics rather than text, so we can't even copy and paste into a translator...  Oh, the pain...

    Yes, I need to learn to read Russian, but #$%& I'm 50 and a grumpy old Engineer who has enough to do as it is...  Very Happy
    Learn to read in Russian is not difficult. Many people get scared of the alphabet, but it is really easy and very phonetic. Declensions can be a pain if you need to write or (worse) speak in Russian, but quite transparent when reading. Go for it, in a few months you will be already reading some simple texts like short news.

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    Pacific Nuclear Sub Force

    Post  slasher on Sat Mar 05, 2016 1:33 am

    This article's from May last year. Anyone can say what's the status of these four subs?

    http://vpk-news.ru/news/25314

    I've read that Tomsk has returned to service but little info on how the repairs on others are progressing.
    Thought I saw recently too that Ryazan completed repairs but can't seem to find any confirmation.

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  slasher on Tue Mar 08, 2016 1:56 am

    ^^^ Okay some news on one of these four:

    https://rbth.com/news/2016/03/07/upgraded-kuzbass-nuclear-sub-to-join-pacific-fleet-in-march_573655

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  nastle77 on Wed Mar 16, 2016 7:28 am

    Was the Victor II class submarine equipped with type 65 21 inch ASuW torpedoes ? or any Asuw torpedoes ?

    Also the SSN-16 Stallion was a dual role weapon ? ASuw and ASW?
    RPK-6 Vodopad (Russian: РПК-6 Водопад, "waterfall") is a Soviet 533 mm anti-ship missile deployed operationally since 1981.[1]

    RPK-7 Veter (Russian: РПК-7 Ветер, "wind") is a 650 mm version, deployed operationally since 1984.[1]

    Both missiles are given the same United States Navy designation SS-N-16 and NATO designation Stallion.[1]

    Both missiles are torpedo-tube launched, with a solid-fuel rocket engine to power them above the surface

    Did it have the same range in the ASW and Asuw role ?

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    Re: Russian Nuclear Submarine Force: Discussion

    Post  artjomh on Wed Mar 16, 2016 1:17 pm

    nastle77 wrote:Was the Victor II class submarine equipped with type 65 21 inch ASuW torpedoes ? or any Asuw torpedoes ?

    It had 2 x 650 mm torpedo tubes for 65-76 torpedoes. No 650 mm rocket-torpedoes, only Vodopad (which is 533 mm)

    Also the SSN-16 Stallion was a dual role weapon ? ASuw and ASW?

    RPK-6 had two types of warhead stage: a torpedo and a depth charge. So, in a way, it was a dual-role system, but it couldn't be used for both at the same time, the two versions were in fact separate weapons.

    That being said, RPK-6 was designed as an anti-submarine weapon, so using the torpedo in anti-shipping role would be cross-purpose and likely require complete reprogramming of its search programme.

    Did it have the same range in the ASW and Asuw role ?

    Depends on how you count it.

    The rocket stage was the in both versions. Exact range is classified, but various sources give the range between 35 and 50 km. The depth charge warhead was, obviously, completely unguided. The torpedo version, on the other hand, had propulsion of its own, and could travel an extra 8 km. However, practically, the torpedo was programmed to travel in a circular descending pattern, searching for the enemy submarine.

    Like I said before, while RPK-6 had a torpedo head, it was not designed for action against enemy surface ships, and it would be highly unlikely that it would every be re-programmed for that kind of operation.

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