Military Forum for Russian and Global Defence Issues


    Project 885: Yasen class

    Share

    George1
    Colonel
    Colonel

    Posts : 9424
    Points : 9916
    Join date : 2011-12-22
    Location : Greece

    Re: Project 885: Yasen class

    Post  George1 on Wed Sep 05, 2012 11:03 pm

    http://rusnavy.com/news/navy/index.php?ELEMENT_ID=15847

    SSGN Severodvinsk to Start Sea Trials in November

    Fourth-generation Project 885 Yasen nuclear-powered cruise missile submarine (SSGN) Severodvinsk will pass state sea trials in coming November; upon their results, the sub will be commissioned into Russian Navy in Dec 2012, said an insider in Russian defense industry on Sept 4.

    "After the shipyard's sea trials, Severodvinsk returned to Sevmash and currently undergoes testing of torpedo tubes.

    In mid-Sept, the sub will take the sea for the fourth time in this year to hold another round of trials. State sea trials are scheduled in November, and then the state acceptance board will commission the sub into the Navy", reports ITAR-TASS citing the source.

    "It is a single-shaft submarine powered by water-cooled and water-moderated nuclear reactor with one turbine", he explained.

    "Three batch-produced Caliber supersonic cruise missiles with flight range exceeding 2,500 km have been already manufactured for Severodvinsk", said the insider. "Under way to a target, Caliber missile changes flight trajectory in altitude and course. Moreover, velocity of a warhead after separation from the missile increases and approaches hypersonic speed", the source added.

    "It is a high-precision ultra-speed weapon primarily designed to counter aircraft carriers", he said.

    The source confirmed that in accordance with contracts signed by Russian defense ministry and United Shipbuilding Corporation under arms procurement program, seven Yasen-class submarines are to be built by 2020, including six subs made under modified Project 885M. The lead submarine SSGN Kazan is under construction at Sevmash shipyard.

    "Strength hull of Kazan is almost completed", said the insider. In mid-Aug, Russian Navy Commander ADM Viktor Chirkov said SSGN Severodvinsk would join the Navy in the current year.

    "Trials of the sub are on schedule. Hopefully, Russian naval ensign would be hoisted on Severodvinsk by the year end", reported Interfax citing Chirkov.

    On Aug 15, a spokesman for United Shipbuilding Corporation denied information about faulty trials of the submarine, reported Vzglyad newspaper.

    "Nuclear submarine Severodvinsk is successfully undergoing the shipyard's sea trials in the White Sea in full accordance with the pre-scheduled program", pointed out the official.

    On Monday, a source of Interfax said that Yasen-class SSGN Severodvinsk would be commissioned not earlier than 2013 due to problems in powerplant.

    Recall that the first trial round of Severodvinsk lasted 3 weeks. It was discontinued when "minor defects" were revealed in the new sub; to eliminate them, Severodvinsk had to return to the yard.

    The next trial round passed smoothly. The sub spent about 2 months in the high sea. Experts of Sevmash and naval servicemen tested onboard systems at that time.

    SSGN Severodvinsk is a double-hulled single-shafted nuclear submarine with reduced acoustic field rate. The conning tower has hydrodynamic oval shape; strength hull is subdivided into 10 compartments.

    GarryB
    Colonel
    Colonel

    Posts : 15458
    Points : 16165
    Join date : 2010-03-30
    Location : New Zealand

    Re: Project 885: Yasen class

    Post  GarryB on Wed Sep 05, 2012 11:16 pm

    "Three batch-produced Caliber supersonic cruise missiles with flight range exceeding 2,500 km have been already manufactured for Severodvinsk", said the insider. "Under way to a target, Caliber missile changes flight trajectory in altitude and course. Moreover, velocity of a warhead after separation from the missile increases and approaches hypersonic speed", the source added.

    Previously they have stated that the Klub with the subsonic all the way flight profile has a range in excess of 2,500km and that the subsonic to the target area and high supersonic (mach 2.9) terminal phase missile had a range of 1,500km.

    Can it be that they have further improve it?

    Hypersonic generally means 1,5km/s or faster, or mach 5 plus, and they are suggesting a range of 2,500km plus for the supersonic model.

    It is a bit like the Kh-38M they talked about as the new missile for new Russian aircraft but the export model has a flight range of 40km while the domestic model has an 80km range.

    A 2,500km missile with a 1.5km/s terminal penetrating warhead is pretty much the Alpha missile that was rumoured to be in development at the end of the cold war...


    _________________
    “The West won the world not by the superiority of its ideas or values or religion […] but rather by its superiority in applying organized violence. Westerners often forget this fact; non-Westerners never do.”

    ― Samuel P. Huntington, The Clash of Civilizations and the Remaking of World Order

    George1
    Colonel
    Colonel

    Posts : 9424
    Points : 9916
    Join date : 2011-12-22
    Location : Greece

    Re: Project 885: Yasen class

    Post  George1 on Thu Sep 06, 2012 12:43 am

    2,500km missile against aircraft carriers is impossible, they probably talk about a Land attack cruise missile......

    TR1
    Colonel
    Colonel

    Posts : 5840
    Points : 5892
    Join date : 2011-12-06

    Re: Project 885: Yasen class

    Post  TR1 on Thu Sep 06, 2012 2:32 am

    From what I have seen, domestic Klub/Kalibr with supersonic stage has 375km range. Export is 220km.

    GarryB
    Colonel
    Colonel

    Posts : 15458
    Points : 16165
    Join date : 2010-03-30
    Location : New Zealand

    Re: Project 885: Yasen class

    Post  GarryB on Thu Sep 06, 2012 4:45 am

    Why is it impossible?

    The Russian satellite Naval recon satellite network was always underestimated in the west, but with new passive sensors and new computer power they could easily keep track of a wide range of surface vessels.

    2,500km range is useful in the sense that the cruise missile can be launched from 1,500km range but be directed via waypoints to approach the carrier group from an unexpected direction and chase down the group no matter how fast they are operating at. The terminal hypersonic leg of the journey making them a real threat to any carrier group... whether it is an American or French or British or Chinese group.

    A modern US aircraft carrier generates a lot of IR... especially the older models with steam powered cats... IR imaging technology has improved radically over the last few years with the Russians now producing QWIP based IR sensor ship technology with their licence production of the Catherine XP 3rd gen cameras.


    _________________
    “The West won the world not by the superiority of its ideas or values or religion […] but rather by its superiority in applying organized violence. Westerners often forget this fact; non-Westerners never do.”

    ― Samuel P. Huntington, The Clash of Civilizations and the Remaking of World Order

    GarryB
    Colonel
    Colonel

    Posts : 15458
    Points : 16165
    Join date : 2010-03-30
    Location : New Zealand

    Re: Project 885: Yasen class

    Post  GarryB on Thu Sep 06, 2012 4:48 am

    The critical thing to keep in mind is that this missile stays low all the way to the target... the only reason it reaches just under mach 3 in the standard model is its rocket propulsion... jet engines would have serious problems with generating enough instant thrust for that sort of acceleration and at that level high speed would be heat limited.


    _________________
    “The West won the world not by the superiority of its ideas or values or religion […] but rather by its superiority in applying organized violence. Westerners often forget this fact; non-Westerners never do.”

    ― Samuel P. Huntington, The Clash of Civilizations and the Remaking of World Order

    Austin
    Colonel
    Colonel

    Posts : 5665
    Points : 6071
    Join date : 2010-05-08
    Age : 40
    Location : India

    Re: Project 885: Yasen class

    Post  Austin on Thu Sep 06, 2012 6:11 am

    TR1 wrote:From what I have seen, domestic Klub/Kalibr with supersonic stage has 375km range. Export is 220km.

    Correct supersonic stage has 375 km and subsonic LACM Kalbir has range of 2600 km as officially disclosed.

    I always wondered why does Russia develop a Klub for Navy and Kh-555/Kh-101 for the Airforce having 2 different cruise missile is really duplication of resource.

    Better to have a single missile and then modify it for Airforce , Navy and Land Forces like US does with Tomahawk

    TR1
    Colonel
    Colonel

    Posts : 5840
    Points : 5892
    Join date : 2011-12-06

    Re: Project 885: Yasen class

    Post  TR1 on Thu Sep 06, 2012 6:15 am

    Austin wrote:
    TR1 wrote:From what I have seen, domestic Klub/Kalibr with supersonic stage has 375km range. Export is 220km.

    Correct supersonic stage has 375 km and subsonic LACM Kalbir has range of 2600 km as officially disclosed.

    I always wondered why does Russia develop a Klub for Navy and Kh-555/Kh-101 for the Airforce having 2 different cruise missile is really duplication of resource.

    Better to have a single missile and then modify it for Airforce , Navy and Land Forces like US does with Tomahawk

    The US made a different missile for the Air Force exactly as the USSR did.

    AGM-86 and Tomahawk are different.

    GarryB
    Colonel
    Colonel

    Posts : 15458
    Points : 16165
    Join date : 2010-03-30
    Location : New Zealand

    Re: Project 885: Yasen class

    Post  GarryB on Thu Sep 06, 2012 10:58 am

    Different requirements.

    Navy needs something that will fit in torpedo tubes, airforce needs something that will fit in existing rotary internal launchers.

    Next generation hypersonic cruise missiles might be developed together perhaps... simply because of the cost being shared...

    I remember reading from a few sources that the Kh-102 and 101 were compatible with the UKSK, but I suspect they meant dimensionally compatible rather than actually integrated into the system.


    _________________
    “The West won the world not by the superiority of its ideas or values or religion […] but rather by its superiority in applying organized violence. Westerners often forget this fact; non-Westerners never do.”

    ― Samuel P. Huntington, The Clash of Civilizations and the Remaking of World Order

    Austin
    Colonel
    Colonel

    Posts : 5665
    Points : 6071
    Join date : 2010-05-08
    Age : 40
    Location : India

    Re: Project 885: Yasen class

    Post  Austin on Sun Sep 09, 2012 10:14 am

    APL "Kazan" will be the first submarine of the 4th generation with a completely new technical equipment

    MOSCOW, September 7. (ARMS-TASS). Headache upgraded multipurpose nuclear submarine (APL) "Kazan" improved project 885M (code "Ash-M"), under construction at Sevmash for the Russian Navy will be the first submarine of the 4th generation with a completely new technical equipment, unmatched in the domestic military shipbuilding. This was reported by Itar-Tass source in the defense industry.

    "In contrast to preparing for the reception of the Navy's strategic missile submarines of the 4th generation" Yury Dolgoruky "and" Alexander Nevsky "(Project 955, code" Northwind ") who first applied technical filling shall not exceed 40 per cent., The multipurpose nuclear submarine "Kazan" all systems, components and mechanisms will be brand new, never ever before not to use. This is a new high-tech equipment, which has no analogues in the Soviet and Russian naval shipbuilding, "- said the source.

    "Submarine" Kazan "on its performance characteristics will be comparable to the most high-tech and most expensive U.S. attack submarine type" Seawolf ", and by the level of noise and some other parameters to surpass it," - said the source, recalling that Americans view the high cost of its submarines stopped their further construction.

    He explained that the improved 885M project includes "the use of new hardware components of electronic equipment and weapons, as well as increasing the combat effectiveness of APL (ultra low noise level and increased detection range of underwater and surface facilities, particularly for submarines and surface ships). At the tactical and technical task to build a modernized submarine type "Kazan" was also on the demand of high-precision equipment ultrafast missile weapons. "

    Another source in Russia's "defense," ITAR-TASS reported that the construction of "Kazan" is complicated by the absence of a contract head performer order - the United Shipbuilding Corporation (USC) with sub - enterprise cooperation in the delivery of components.

    "USC is set up as soon as possible to sign contracts with about a hundred counterparts - leading enterprises cooperation. During negotiations USC, reducing their profits, on the other hand requires subcontractors to reduce the prices of their products in order to meet together in tough price parameters of the contract signed with the Ministry of Defence by submarine. However, large suppliers of products for "Kazan" yet do not want to reduce their prices on the pretext that the contract with the Ministry of Defense, which, according to their claims, the military department prices without economic justification, they are not signed, and the corporation , which should find a way out of the situation. "

    "There goes the difficult process of negotiations with counterparties USC, started in November last year. Negotiators to agree quickly to catch up and a half years, who left USC to prepare contracts and MOD Project 885M submarines, including on the" Kazan " - said the source.

    Austin
    Colonel
    Colonel

    Posts : 5665
    Points : 6071
    Join date : 2010-05-08
    Age : 40
    Location : India

    Re: Project 885: Yasen class

    Post  Austin on Sun Sep 09, 2012 5:12 pm

    885M would indeed be a revolutionary submarine if it meets its design goal.

    Exceeding acoustic characterictics of Seawolf would be something of an exceptional achievement even if one views it in terms of narrow characterictics of acoustics.

    I would bet once she achieves that 885M would be acoustically the most quite nuclear submarine under waters and Western domination on the only field where their submarine were some what ahead would be broken.

    I just hope their dont stop the 885M in this decade with 8 subs but utilise their number built to reduce cost and build atleast 8 more 885U or more advanced variant next decade while in parallel build 5000-6000 T medium size nuclear submarine of 5th Generation.

    TR1
    Colonel
    Colonel

    Posts : 5840
    Points : 5892
    Join date : 2011-12-06

    Re: Project 885: Yasen class

    Post  TR1 on Sun Sep 09, 2012 10:50 pm

    Wait, you want 16 885 sized boats plus small nuclear attack boats?

    That would be overkill for Russia's defense budget.

    Austin
    Colonel
    Colonel

    Posts : 5665
    Points : 6071
    Join date : 2010-05-08
    Age : 40
    Location : India

    Re: Project 885: Yasen class

    Post  Austin on Mon Sep 10, 2012 8:46 am

    TR1 wrote:Wait, you want 16 885 sized boats plus small nuclear attack boats?

    That would be overkill for Russia's defense budget.

    May be not a over kill ,I am looking at long term prespective.

    My thinking is Russian NAvy needs a force of atleast 30 SSN/SSGN.

    Eventually the Oscar-2 , 971M and Victor-3 will get decommisioned next decade by end of 2030 even after their upgrade ( plus minus 5 years )

    So a fleet of 16 Yasen class plus 15-16 5th Gen Small SSN plus 8 SSBN.

    Its feseable and wont be expensive if they continue building Yasen.

    For eg the first of Yasen-M cost 47 billion roubles and series production will cost 37 billion roubles .....if they build more they can reduce the cost by couple of billion roubles as it would be easy for subcontractors and equipment developers to order equipment in large numbers and at lower cost if the order is big and pass the benefit to MOD



    George1
    Colonel
    Colonel

    Posts : 9424
    Points : 9916
    Join date : 2011-12-22
    Location : Greece

    Re: Project 885: Yasen class

    Post  George1 on Mon Sep 10, 2012 9:14 am

    Yasen is 3 times more expensive than Borei. So after the order of the 6 submarines, it will probably follow a cheaper project than can be produced at about 20 units. Some Aculas can serve for years also. So with that numbers we are over 30 SSN/SSGNs.

    Austin
    Colonel
    Colonel

    Posts : 5665
    Points : 6071
    Join date : 2010-05-08
    Age : 40
    Location : India

    Re: Project 885: Yasen class

    Post  Austin on Mon Sep 10, 2012 9:23 am

    Not 3 times but 1.5 to 2 times ...the reason Virginia SSN is turning out to be cheaper because 30 of it are being ordered but in different block model with each block improved over others.

    It turned out to have a cost of $1.5 billion compared to $3 billion for Sea Wolf class

    TR1
    Colonel
    Colonel

    Posts : 5840
    Points : 5892
    Join date : 2011-12-06

    Re: Project 885: Yasen class

    Post  TR1 on Mon Sep 10, 2012 10:00 am

    Austin wrote:
    TR1 wrote:Wait, you want 16 885 sized boats plus small nuclear attack boats?

    That would be overkill for Russia's defense budget.

    May be not a over kill ,I am looking at long term prespective.

    My thinking is Russian NAvy needs a force of atleast 30 SSN/SSGN.

    Eventually the Oscar-2 , 971M and Victor-3 will get decommisioned next decade by end of 2030 even after their upgrade ( plus minus 5 years )

    So a fleet of 16 Yasen class plus 15-16 5th Gen Small SSN plus 8 SSBN.

    Its feseable and wont be expensive if they continue building Yasen.

    For eg the first of Yasen-M cost 47 billion roubles and series production will cost 37 billion roubles .....if they build more they can reduce the cost by couple of billion roubles as it would be easy for subcontractors and equipment developers to order equipment in large numbers and at lower cost if the order is big and pass the benefit to MOD



    The way I see it, is 1 for 1 replacement of current numbers (a leftover of the massive Soviet fleet) is not necessary + a financial burden.

    The fleet is currently, at best:
    3 Project 945/945A boats
    4 Project 671RTMK boats
    Around 12 Project 971 boats
    Around 8 Project 949 boats

    So what we have is 27 nuclear attack/cruise missile submarines.
    Now, not all of those are likely to be included in the modernization process, and hence will not be part of force structure that will have to be replaced by new boats eventually.
    Also we can add the Belgorod as a replacement boat....I find it extremely unlikely the Russian Navy will seek a 30 boat replacement, as that will actually exceed current force numbers, that are difficult to maintain as is.
    I do agree that Yasen number should be increased past 8 to either 12 or 14 boats, or a larger number of smaller complimentary nuclear attack boats. However a smaller boat will be hard to fit a powerful cruise missile compliment into, so I don't see the Navy going for that.
    Luckily with firm plans to maintain/modernize the Bars and Anteiis there is no huge pressure to build mass numbers of new boats until past 2020.
    Then we can see what state the economy is, as well as contemporary submarine construction picture in Russia.

    Austin
    Colonel
    Colonel

    Posts : 5665
    Points : 6071
    Join date : 2010-05-08
    Age : 40
    Location : India

    Re: Project 885: Yasen class

    Post  Austin on Mon Sep 10, 2012 10:46 am

    The key is cost , RuN will eventually realise that building more of Yasen class will be cheaper in the long run , A 5th gen small sub may still turn out to be expensive than Yasen class.

    If the first Kazan cost 47 billion roubles of $1.4 billion and series production cost 37 billion roubles which is $1.1 billion ....it means the cost can be got down further if they build more of Yasen.

    When I say less it means it may also turn out to be slightly more if you take into account the military inflation but a new 5th gen sub may be far more costly.

    I think they were mentioning that 25-30 SSN/SSGN and 8-10 SSBN is the force structure for the long run which is feseable

    runaway
    Master Sergeant
    Master Sergeant

    Posts : 351
    Points : 372
    Join date : 2010-11-12
    Location : Sweden

    Re: Project 885: Yasen class

    Post  runaway on Mon Sep 10, 2012 4:27 pm

    Austin wrote:The key is cost , RuN will eventually realise that building more of Yasen class will be cheaper in the long run , A 5th gen small sub may still turn out to be expensive than Yasen class.

    I think they were mentioning that 25-30 SSN/SSGN and 8-10 SSBN is the force structure for the long run which is feseable

    No, the key should not be cost, but quality and more capable and allround subs.
    A 5th gen sub must and will be be developed, not to say it should only be a SSN.
    The Virgina is a SSGN, and only 115m. Thats rather small for a SSGN, i have no doubts the Yasen 120m, will have similiar capabilities. The huge Antei class of 155m is much larger, so the Yasen is actually a small and agile boat.

    Perhaps the 885M will be classified as a 4+ generation, and numbers to form a strong core should be built. However, work on a 5 gen must already have begun, but time to hit the water isnt until 2030-2035.

    Development never stops, but time scopes is longer now.

    George1
    Colonel
    Colonel

    Posts : 9424
    Points : 9916
    Join date : 2011-12-22
    Location : Greece

    Re: Project 885: Yasen class

    Post  George1 on Tue Sep 11, 2012 12:31 am

    SSGN Kazan: First Radically New Sub in Russian Navy

    Lead nuclear-powered cruise missile submarine SSGN Kazan being built under modernized Project 885M Yasen-M by Sevmash shipyard for Russian Navy will become the first fourth-generation nuclear submarine with absolutely new technical outfit having no analogs in national military shipbuilding, reported ITAR-TASS referring to an insider in defense industry.

    "In contrast to fourth-generation strategic subs Yury Dolgoruky and Alexander Nevsky [Project 955 Borei] with only 40% of newly applied equipment, all systems of the multipurpose SSGN Kazan will be absolutely new, never used before. I mean radically new hi-tech equipment having no analogs either in Soviet or in Russian shipbuilding", said the source.

    "Technically, SSGN Kazan will be comparable to the most hi-tech and expensive American Sea Wolf attack submarine, and even outclass her in silence and some other parameters", said the source reminding that the US had shut down production of those subs due to expensiveness.

    http://rusnavy.com/news/navy/index.php?ELEMENT_ID=15870

    GarryB
    Colonel
    Colonel

    Posts : 15458
    Points : 16165
    Join date : 2010-03-30
    Location : New Zealand

    Re: Project 885: Yasen class

    Post  GarryB on Tue Sep 11, 2012 1:53 am

    I am looking forward to the development of mini subs and unmanned underwater vehicles and that sort of stuff.

    For coastal and port protection the Lada-M class will actually be very close to SSN in performance... it has SSN quality sonar and electronics, and with AIP it will have pretty much every capability except top speed over reduced ranges and patrol times.

    It should be a very potent class.

    With the AIP it should be even quieter than a nuke...


    _________________
    “The West won the world not by the superiority of its ideas or values or religion […] but rather by its superiority in applying organized violence. Westerners often forget this fact; non-Westerners never do.”

    ― Samuel P. Huntington, The Clash of Civilizations and the Remaking of World Order

    Austin
    Colonel
    Colonel

    Posts : 5665
    Points : 6071
    Join date : 2010-05-08
    Age : 40
    Location : India

    Re: Project 885: Yasen class

    Post  Austin on Sun Sep 16, 2012 11:57 am

    How would Yasen use Big Decoys like MG-74 when it does not have dedicated tubes like those of Akula ?

    George1
    Colonel
    Colonel

    Posts : 9424
    Points : 9916
    Join date : 2011-12-22
    Location : Greece

    Re: Project 885: Yasen class

    Post  George1 on Mon Oct 22, 2012 11:11 pm

    SSGN Severodvinsk Completed Sea Trials Round

    Nuclear-powered cruise missile submarine (SSGN) Severodvinsk has returned to Sevmash shipyard after successful completion of another sea trials round, reports the shipyard's press service.

    "All tasks were accomplished in full", said Marat Abizhanov, defense production director of JSC Sevmash.

    The submarine's missile system and various onboard facilities were tested during the trials.

    According to experts, Severodvinsk passed the first significant milestone as the sub has spent 100 days at sea in the course of all sea trials rounds. The sub's commanding officer Capt 1 Rank Sergei Mitiayev congratulated the crew and trial team on that achievement and wished further success.

    Recently, SSBN Alexander Nevsky also finished another phase of shipyard's sea trials. In the nearest time both submarines will start preparation for state acceptance trials.

    As of today, SSGN Severodvinsk is the most up-to-date submarine in Russian Navy. She left the Sevmash's slipway and was put afloat in 2010.

    http://rusnavy.com/news/navy/index.php?ELEMENT_ID=16226

    George1
    Colonel
    Colonel

    Posts : 9424
    Points : 9916
    Join date : 2011-12-22
    Location : Greece

    Re: Project 885: Yasen class

    Post  George1 on Thu Nov 08, 2012 12:52 am

    SSGN Severodvinsk Started State Acceptance Trials

    Project 855 Yasen nuclear-powered cruise missile submarine K-329 Severodvinsk will be commissioned into Russian Navy till the end of the current year. According to Izvestiya, construction of the sub cost Russia over RUR 70 bln.

    Russian Navy Main HQ told Izvestiya that "on Oct 30 the submarine left Sevmash shipyard for the Barents Sea to hold state trials. It is planned to test all onboard systems and launch Caliber cruise missiles. If everything goes without failures, the tests would finish on Nov 25".

    According to the interviewee, "maximum dive will be a final exam after the missile firing tests. That is the main test for any submarine, because deep water is where operation of all systems, condition of the hull and nuclear reactor are most demonstrative".

    Severodvinsk has been passing such tests for the second year, writes Izvestiya. Last year, the submarine spent about 120 days at sea. Somewhat 2,000 defects were found then, said the source. It took one year to eliminate all defects revealed.

    As for the source, "upon termination of sea trials, the sub will pass final overhaul at Sevmash within two or three weeks, and then she will be triumphantly commissioned into Russian Navy. The sub's crew is expected to start combat training in 2013".

    http://rusnavy.com/news/navy/index.php?ELEMENT_ID=16376

    Austin
    Colonel
    Colonel

    Posts : 5665
    Points : 6071
    Join date : 2010-05-08
    Age : 40
    Location : India

    Re: Project 885: Yasen class

    Post  Austin on Thu Nov 08, 2012 11:54 am

    I hope they manage to commission this subs before the end of this year it would be a great achievement for them .......this project has got delayed by a long shot.

    Stealthflanker
    Major
    Major

    Posts : 808
    Points : 894
    Join date : 2009-08-04
    Age : 28
    Location : Indonesia

    Re: Project 885: Yasen class

    Post  Stealthflanker on Thu Nov 08, 2012 7:38 pm

    I heard that Yasen incorporates GenIV reactor for her powerplant..hmm i wonder what kind of reactor it used Very Happy ?.. as far as i know Gen IV reactor for subs would be a variant of Lead-Bismuth cooled reactor or variant of pressurized water reactor.. referred as "Supercritical water reactor"

    Sodium cooled as the one used onboard Seawolf looks possible too but then.. from past experience Russians have no submarine running Sodium cooled reactor.. thus lead-bismuth is more likely candidate.

    Sponsored content

    Re: Project 885: Yasen class

    Post  Sponsored content Today at 3:24 am


      Current date/time is Mon Dec 05, 2016 3:24 am