Russia Defence Forum

Would you like to react to this message? Create an account in a few clicks or log in to continue.

Military Forum for Russian and Global Defence Issues


    Russian Nuclear Submarine Force: Discussion

    Big_Gazza
    Big_Gazza

    Posts : 2085
    Points : 2087
    Join date : 2014-08-25
    Location : Melbourne, Australia

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  Big_Gazza on Thu Mar 12, 2020 10:25 am

    Isos wrote:https://www.navyrecognition.com/index.php/news/defence-news/2020/january/7985-russian-submarines-to-get-unguided-shells-to-break-ice.html

    Russian submarines to get unguided shells to break ice


    Of course the Pr 941 Akula boomers were designed to simply surface under the pack ice, breaking it with its reinforced hull thru sheer buoyancy force, then use its missile hatch covers to push the blocks of ice out of the way. Very Happy

    Sometime you just had to admire Soviet engineering.
    George1
    George1

    Posts : 14960
    Points : 15461
    Join date : 2011-12-22
    Location : Greece

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  George1 on Wed Mar 18, 2020 2:21 pm

    Research into Russia’s fifth generation subs well in progress — Navy’s commander


    According to a TASS' source in the defense and industrial complex, the hypersonic missiles Tsirkon will be one of the strike weapons the yet-to-be created submarine will carry

    MOSCOW, March 18. /TASS/. Research is well in progress into Russia’s fifth-generation submarines, the Navy’s commander-in-chief, Admiral Nikolai Yevmenov, told the Russian army daily Krasnaya Zvezda in an interview.

    "Currently Russia is building fourth generation submarines, but we are obliged to look ahead. This is an imperative of our time and of progress in science and engineering that concerns the Navy’s development. It is common knowledge that research into fifth generation submarines is well underway. They are to boast far better parameters," Yevemnov promised.

    On December 24, 2019, Russia’s Federation Council (parliament's upper house) memos said that Russia’s future fifth generation nuclear powered submarines of the Laika project (also called Husky) will be configured to carry ballistic and anti-ship missiles.

    Earlier, a source in the defense and industrial complex told TASS that the Marine Engineering Bureau Malakhit had finalized the image of a multirole nuclear powered fifth-generation submarine Husky and started the next phase of the project — research and development work codenamed Laika.

    According to the source, the hypersonic missiles Tsirkon will be one of the strike weapons the yet-to-be created submarine will carry. Laika will have modular design and an integrated artificial intelligence-based combat control system.

    Such submarines will be commissioned to perform a variety of tasks, including strategic non-nuclear deterrence.

    Projects 971 and 949 submarines


    The life cycle of Russia’s submarines of projects 971 and 949 will in fact double as a result of timely repairs and a more reasonable approach to overhaul, Nikolai Yevmenov stated.

    "We will push ahead with the repairs and upgrade of our nuclear-powered submarines, such as projects 667BDRM Delfin (NATO’s reporting name Delta IV), 971 and 949. It is noteworthy that such rational and logical approach to repairs and overhaul will in fact double the life cycles of projects 971 and 949," Yevmenov said.

    Project 971 was designed for hunting enemy submarines and groups of surface ships and attacking the enemy’s surface facilities. It is armed with eight torpedo tubes capable of firing both torpedoes and cruise missiles.

    The Project 949A sub is 155 meters long. It has a displacement of 24,000 tonnes, maximum depth of 600 meters, underwater speed of up to 32 knots and a crew of 107. The submarines of this type are armed with 24 launchers of cruise missiles Granit (having a range of about 500 kilometers) and six torpedo tubes.

    On November 8, 2019, Deputy Defense Minister Alexei Krivoruchko unveiled plans for arming one of the 949A projects submarines, The Irkutsk, with hypersonic cruise missiles Tsirkon.

    https://tass.com/defense/1131767
    GarryB
    GarryB

    Posts : 25968
    Points : 26514
    Join date : 2010-03-30
    Location : New Zealand

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  GarryB on Thu Mar 19, 2020 12:12 am

    Well actually scramjet technology raises some interesting possibilities.... a scramjet powered missile is really only limited by heat technology, so in theory the Zircon land attack and anti ship missile could, over time get bigger and faster and much longer ranged to the point where it is moving at such high speeds it is skimming across the top of the atmosphere with range potential of 10,000km or more at say mach 25 plus and you have to say that when it gets to that point... how is it any different from a SLBM?

    The idea of a future sub having SLBMs and antiship/land attack missiles might become reality when missiles that can do both jobs and more become available.

    You might think I am crazy, but the work they are doing on nuclear powered ramjets... if you think of a ramjet in very basic terms it is a tube where air is sucked in one end and fuel is burned and the tube narrows to compress and further heat the air which accelerates out the back of the tube faster than it went in overcoming the drag of the aircraft itself and generating thrust to maintain speed or even accelerate. A scramjet engine is just really the same thing but there is no limit on the speed of the air going through the engine so it can operate at much higher speeds and produce rather more thrust.

    A ramjet needs subsonic air going through the hot section where the fuel burns because like any other normal jet engine it can't burn the fuel at supersonic airflow (through the engine) speeds. A MiG-25 can fly at Mach-2.5 with its engines operating, but while on take off those engine intakes are open wide maximising the amount of air flowing into the engine to create thrust, at Mach 2.5 the intake will be closed down to a minimum reducing the amount of air going into the engine so it can be slowed down to subsonic speeds before it gets to the hot section where fuel is added and burned.

    It is pretty obvious that if you replace a turbojet with a scramjet the sort of thrust you can deliver at supersonic flight speeds is increased an order of magnitude.

    (For those wondering, the SR-71 has a bypass turbojet where air is directed around the outside of the turbojet at top speed so the turbojet is just idling and producing next to no thrust at top speed, while the bypass air is restricted and slowed down and just as it is leaving the rear of the engine fuel is added and burned in the standard after burner, so effectively it acts like a ramjet...)

    What I am getting at is that all these types of jet engine produce heat by compressing air... ram in ramjet means compression... then fuel is added and burned generating more heat and thrust/gas velocity... when the heat source is a nuclear reactor there is no combustion so the difference between a Scramjet and a Ramjet become meaningless so in theory a nuclear ramjet should be a nuclear scramjet able to operate at enormous temperatures (internal temperatures) without flame outs... because there is no flame...
    Tsavo Lion
    Tsavo Lion

    Posts : 4473
    Points : 4469
    Join date : 2016-08-15
    Location : AZ, USA

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  Tsavo Lion on Thu Mar 19, 2020 3:35 pm

    Yasen update: https://ria.ru/20200104/1562947152.html?in=t
    thegopnik
    thegopnik

    Posts : 154
    Points : 160
    Join date : 2017-09-20

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  thegopnik on Thu Mar 19, 2020 9:39 pm

    GarryB wrote:Well actually scramjet technology raises some interesting possibilities.... a scramjet powered missile is really only limited by heat technology, so in theory the Zircon land attack and anti ship missile could, over time get bigger and faster and much longer ranged to the point where it is moving at such high speeds it is skimming across the top of the atmosphere with range potential of 10,000km or more at say mach 25 plus and you have to say that when it gets to that point... how is it any different from a SLBM?

    Mach 27 flight vehicle at 100km altitudes, air density becomes even more tougher at lower altitudes. I think right now it is beyond the capabilities of Russia to use those same mach 25 speeds at an altitude of 40kms without breaking apart from the physical stress. The U.S. has barely fielded any air breathable missiles but have some project hopes of scramjets, they lack in the department of sustaining heat stress of hypersonic missiles because of their HTV-2 project which barely accomplished 1/3rd of its flight to its target. So its hard to determine if the U.S. either lacks in the heat physical stress department of hypersonic missiles or making air-breathable engines work properly at high speeds.

    Scramjets are very different from SLBMs.

    • Lower altitudes with better ability to deal with air density and drag, which makes it a more difficult target to track for ground radars using radar horizon, or satellite systems trying to track it.

      1st stage brings it to its flight ceiling, but unlike ballistic missiles where no additional stages are given once they reach their flight ceilings, scramjet missiles use their 2nd stage engines throughout their entire flights meaning they have no slowdowns compared to ballistic missiles.

      Lower altitudes and high speeds create plasma density conditions favorable for stealth making the missile a difficult target to track.


    https://navalnews.net/russian-developers-to-increase-the-speed-of-zircon-missile-over-10-mach/

    Their developers are trying to make the missile reach mach 10, and altitudes of the missiles flight ceiling have been listed at 40kms. So lets see how temperatures and altitudes effect radio waves.

    Russian Nuclear Submarine Force: Discussion - Page 21 Alt_te10
    Russian Nuclear Submarine Force: Discussion - Page 21 Freque10

    http://www.aerospaceweb.org/design/scripts/atmosphere/

    Put mach 10 for velocity, 32 degrees Fahrenheit for temperature increment and 40kms for altitude. Than the 2nd section will tell you that the total temperature for the heat shield is 5630.6759 Kelvin. And such plasma density can effect radio waves all in the fire control range. Such is the intent of why speeds for the Zircon missile for each tests keep on increasing and increasing.

    Russian Nuclear Submarine Force: Discussion - Page 21 Rcs_pl10

    https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19670020821.pdf

    As we can also see around 40kms or 130,000ft according to this graph the RCS conditions are favorable for the aluminum sphere being dropped going from -12 to -25 decibels. The effects of frequency wavelength for the RCS of spheres does not apply which is why they are usually used for test objects for radars most of the time. But material of an object is also important regarding RCS because one object of a similar size compared to the other might have a higher RCS because of more radio reflection.

    Also the Zircon missile stays cruising at 40km altitudes, it does not drop like the sphere which the plasma conditions are always favorable for the missile. Russia’s physicists have also found a way to still communicate with objects in a high density plasma condition like re-entry vehicles.

    https://www.technologyreview.com/s/422292/russian-physicists-solve-radio-black-out-problem-for-re-entering-spacecraft/

    Ballistic missiles like SLBMs cannot be compared to scramjets, scramjets are an entirely different animal.

    Isos
    Isos

    Posts : 6213
    Points : 6205
    Join date : 2015-11-06

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  Isos on Thu Mar 19, 2020 10:08 pm

    I wonder if they could use the same guidance as kornet atgm with the laser source being a satellite. The back of the missike could fit a laser receiver and would correct the course of the missile. It shouldn't be as hot as the front and they wouldn't have issues with puting electronics there.

    Modern satellites can optically follow any ship if they know where it is. They just need enough of them.

    Could also work with radio signal.
    Tsavo Lion
    Tsavo Lion

    Posts : 4473
    Points : 4469
    Join date : 2016-08-15
    Location : AZ, USA

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  Tsavo Lion on Thu Mar 19, 2020 11:21 pm

    Enemy sats & EW means could then take it off course.
    GarryB
    GarryB

    Posts : 25968
    Points : 26514
    Join date : 2010-03-30
    Location : New Zealand

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  GarryB on Sat Mar 21, 2020 2:41 am

    Mach 27 flight vehicle at 100km altitudes, air density becomes even more tougher at lower altitudes. I think right now it is beyond the capabilities of Russia to use those same mach 25 speeds at an altitude of 40kms without breaking apart from the physical stress.

    That is OK... it might only be doing mach 10 at 40kms altitude and as it accelerates it can climb... it does not need to do mach 27 all the way... it could be designed to be multi stage and as it sheds weight its max speed potential and ability to accelerate should dramatically improve over time and distance.

    Scramjets are very different from SLBMs.

    Well to be clear we are not comparing scramjet powered weapons with ballistic ones... if you depress the trajectory of a SLBM then you could fit a scramjet engine as the later stages with a large rocket stage to launch and get the weapon on its way, and instead of having one or two further solid fuelled rocket stages to help it on its way and then glide the rest of the way to the target, the second stage could be powered all the way scramjet propulsion where the weapon can fly a complex unpredictable trajectory and  manouver to way points to fly around known ABM system locations etc etc.

    What we are effectively talking about was a real question before ICBMs became viable... back then the idea of a V-2 type weapon reaching all the way round the planet was not a certain thing and a lot of money was invested in long range mach 3 plus cruise missiles of enormous size intended to act like a supersonic bomber on a one way trip to targets 10,000km away or more.

    Look up weapons like the Snark SM-62, the Navaho SM-64, and the Regulus SSM-N-9 for the American weapons and there were plenty of Soviet equivalents.

    There is no reason why a strategic range cruise missile could not be developed today... in fact in a sense the nuclear engined new unlimited range Russian cruise missile is a serious first step in that direction... increase the thrust to increase the speed even if range is reduced from 100 million kms to 1 million kms that is fine... instead of being able to fly for 300 years it can fly for only 10 years.... that is still more range than it would really need... but the improvement with flying everywhere at mach 5 instead of subsonic would make it much harder to intercept and engage...

    Actually flying at mach 4 at low altitudes would make it harder to intercept than flying at mach 6 at high altitude...

    Ballistic missiles like SLBMs cannot be compared to scramjets, scramjets are an entirely different animal.

    Iskander is a solid fuelled rocket but it uses its rocket propulsion to manouver during its flight to make interception difficult... if they could replace the solid fuelled rocket sustainer motor with a scramjet motor it would use fuel with much more efficiency which on its own would greatly extend range and improve performance.

    Any current ballistic missile could have one of its later rocket booster stages replaced with a scramjet motor to allow it to actively fly all the way to the target instead of be accelerated by two or three fixed solid rocket boosts and then coast to the target like a thrown rock. Scramjets would allow better control of speed and the ability to manouver without speed loss and could be stopped and started as many times as you needed unlike a solid rocket motor.

    With a fuelled scramjet engine the mission control computer could throttle back to save on fuel... the weapon itself will have a top speed limit at the altitude it is operating at... for instance a Sidewinder missile might only reach mach 1.5 when launched at sea level... the same amount of fuel burns as at higher altitude but the increased drag means it cannot go faster than about mach 1.5, yet the same missile launched at 14km altitude might reach mach 2.5 and therefore travel much much further. With a rocket motor the missile has no option but to burn at full rate, but a scramjet powered missile might determine it is at low altitude so instead of a full thrust burn to accelerate to mach 1.5... it might select 40% burn and travel at mach 1.1... but it can operate at that thrust level for 10 times longer than it can at max full AB thrust so while it goes even slower than a rocket engine it can fly much much further because it is not wasting fuel.

    More importantly the missile could use the scramjet motor to climb to altitudes where it can go much much faster so it might end up climbing to 30km altitude and then leveling off and accelerating to mach 5 and then shutting down the motor to coast.... climbing means being able to go faster, but the energy it costs can be recovered when the missile dives down on its target so it is normally a good thing to do unless launched very very close to the target.

    Ramjets can do many of the things scramjets do but don't offer the raw speed of a rocket motor... scramjets have all the advantages of jet engines with the velocity capacity of a rocket motor.

    Scramjet powered cruise missiles will make a comeback because they just need fuel... they scoop the oxidiser as they go... for most rockets three quarters of the weight of the poisonous noxious chemicals you load on to them for launch are the oxidisers and only one third is the fuel... effectively with a scramjet you are able to carry three times more fuel in the same space or just make a much smaller missile which makes it lighter and cheaper of course...

    BTW using satellites to find ships is one thing, but using them to direct your missiles makes such satellites very high priority targets...
    Tsavo Lion
    Tsavo Lion

    Posts : 4473
    Points : 4469
    Join date : 2016-08-15
    Location : AZ, USA

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  Tsavo Lion on Thu Apr 02, 2020 7:16 am

    5 Yasens will go to the NF, 3 to PF:
    https://iz.ru/990428/aleksei-ramm-bogdan-stepovoi/sprosiat-s-iasenia-novye-atomnye-podlodki-otpraviat-na-severnyi-flot

    YasenM changes


    Last edited by Tsavo Lion on Tue Apr 07, 2020 12:11 am; edited 1 time in total (Reason for editing : add link)
    George1
    George1

    Posts : 14960
    Points : 15461
    Join date : 2011-12-22
    Location : Greece

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  George1 on Fri May 01, 2020 11:24 pm

    Nuclear subamarines 01/05/2020

    Russian Nuclear Submarine Force: Discussion - Page 21 142
    Russian Nuclear Submarine Force: Discussion - Page 21 237
    ultimatewarrior
    ultimatewarrior

    Posts : 1070
    Points : 1078
    Join date : 2016-09-19
    Location : Waterloo, Ontario, Canada

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  ultimatewarrior on Sat May 02, 2020 7:53 pm

    Is only 1 Yasen operational at the moment?
    SeigSoloyvov
    SeigSoloyvov

    Posts : 2044
    Points : 2036
    Join date : 2016-04-08

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  SeigSoloyvov on Sat May 02, 2020 8:00 pm

    ultimatewarrior wrote:Is only 1 Yasen operational at the moment?

    Yes.

    the 2nd boat Kazan is currently in sea trials.

    the 3rd boat Novosibirsk was launched.
    ultimatewarrior
    ultimatewarrior

    Posts : 1070
    Points : 1078
    Join date : 2016-09-19
    Location : Waterloo, Ontario, Canada

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  ultimatewarrior on Sat May 02, 2020 10:27 pm

    SeigSoloyvov wrote:
    ultimatewarrior wrote:Is only 1 Yasen operational at the moment?

    Yes.

    the 2nd boat Kazan is currently in sea trials.

    the 3rd boat Novosibirsk was launched.

    Wow. That's slower than I thought. If this were Chinese there be more than 10 Yasen operational by now considering the first sub was commissioned into service in 2013 before the first Type 052D was commissioned into service and now China has more than 10 Type 052D in service.
    Isos
    Isos

    Posts : 6213
    Points : 6205
    Join date : 2015-11-06

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  Isos on Sat May 02, 2020 11:41 pm

    ultimatewarrior wrote:
    SeigSoloyvov wrote:
    ultimatewarrior wrote:Is only 1 Yasen operational at the moment?

    Yes.

    the 2nd boat Kazan is currently in sea trials.

    the 3rd boat Novosibirsk was launched.

    Wow. That's slower than I thought. If this were Chinese there be more than 10 Yasen operational by now considering the first sub was commissioned into service in 2013 before the first Type 052D was commissioned into service and now China has more than 10 Type 052D in service.

    Well China builds at the same speed its SSN and they are at the level of old Victor sub in terms of stealth, but at least Victor had better caracteristics even being 40 years older.
    ultimatewarrior
    ultimatewarrior

    Posts : 1070
    Points : 1078
    Join date : 2016-09-19
    Location : Waterloo, Ontario, Canada

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  ultimatewarrior on Sat May 02, 2020 11:47 pm

    Isos wrote:
    ultimatewarrior wrote:
    SeigSoloyvov wrote:
    ultimatewarrior wrote:Is only 1 Yasen operational at the moment?

    Yes.

    the 2nd boat Kazan is currently in sea trials.

    the 3rd boat Novosibirsk was launched.

    Wow. That's slower than I thought. If this were Chinese there be more than 10 Yasen operational by now considering the first sub was commissioned into service in 2013 before the first Type 052D was commissioned into service and now China has more than 10 Type 052D in service.

    Well China builds at the same speed its SSN and they are at the level of old Victor sub in terms of stealth, but at least Victor had better caracteristics even being 40 years older.

    Type 095 has pump jet. Should be on par with Virginia class in terms of quietness. Yasen don't have pump jet.

    Russian Nuclear Submarine Force: Discussion - Page 21 095-sub-3
    GarryB
    GarryB

    Posts : 25968
    Points : 26514
    Join date : 2010-03-30
    Location : New Zealand

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  GarryB on Sun May 03, 2020 6:40 am

    It takes more than external views to determine how quiet a sub will be...
    Big_Gazza
    Big_Gazza

    Posts : 2085
    Points : 2087
    Join date : 2014-08-25
    Location : Melbourne, Australia

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  Big_Gazza on Sun May 03, 2020 6:47 am

    Pump jets? pfftt... They aren't much use for Russian SSNs, regardless of the muricans using them on their Seawolfs/Virginias. Pump jets work to reduce cavitation noise (the primary source of acoustic emissions) but if you build your subs to cruise deep like the Ruskies do then cavitation doesn't occur as the vapour bubbles can't form - the ambient hydrostatic pressure at depth is sufficiently high such that the transient pressure drop caused by the propeller edge shedding vortices doesn't drop below the vapour pressure of water at the prevailing (cold) temperatures. no bubbles, so no subseuent collapse. No Noise. Simples, but muricans are too busy promulgating their self-serving narratives to take notice.

    US subs use pump jets because they operate in warmer waters where the vapour pressure is higher so cavitation effects are more marked, plus they can't dive as deep. China will likely use them for the same reasons, especially considering the warm waters of the South China Sea and other littoral waters.

    Russian Borei boomers use pump jets as they need to operate at shallow depth so they can launch their missiles, and stealth while patrolling at low speeds (or higher speed transits to/from their patrol zones) is their primary requirement.

    In contrast, Yasen class don't use them. Not only do they run deep, but they don't want the performance penalties associated with these systems. If a Yasen finds itself in conflict with a murican boat then the time for stealthy hiding and creeping is over. They will light up the enemy with active sonar, open the throttles and engage in a high-energy knife-fight. The Russians want every last once of grunt out of their power train, without the lump of steel around the screw reducing the available thrust.

    Finally, when the Severodvinsk went on her maiden sojourn into the North Atlantic, she disappeared from NATOstani sensors and they couldn't recover her signal for months despite great efforts. The lack of a pump jet was clearly no handicap to her... Laughing Laughing Laughing
    avatar
    xeno

    Posts : 162
    Points : 165
    Join date : 2013-02-04

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  xeno on Sun May 03, 2020 11:44 am

    Why are you guys talking about a fake CGI post by a Chinese troll in the RussianN uclear Submarine Force thread ?
    Big_Gazza
    Big_Gazza

    Posts : 2085
    Points : 2087
    Join date : 2014-08-25
    Location : Melbourne, Australia

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  Big_Gazza on Sun May 03, 2020 12:27 pm

    xeno wrote:Why are you guys talking about a fake CGI post by a Chinese troll in the RussianN uclear Submarine Force thread ?

    I'm debunking BS about the "superiority" of pump jets. Nothing to do with Chinese fan-boi artwork.
    avatar
    owais.usmani

    Posts : 374
    Points : 374
    Join date : 2019-03-27
    Age : 34

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  owais.usmani on Mon May 04, 2020 10:25 am

    https://thebarentsobserver.com/en/node/6814

    Northern Fleet makes major investments in nuclear submarine infrastructure. Will not repeat mistakes of the Cold War

    avatar
    miroslav

    Posts : 106
    Points : 108
    Join date : 2016-11-16
    Location : Land of Serbia

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  miroslav on Wed May 06, 2020 7:30 pm

    GarryB wrote:It takes more than external views to determine how quiet a sub will be...

    You don't understand, the real problem is that a pump-jet submarine can stay submerged for only 15 min. since the battery power for the diesel engine is taken directly from it.
    avatar
    owais.usmani

    Posts : 374
    Points : 374
    Join date : 2019-03-27
    Age : 34

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  owais.usmani on Wed May 06, 2020 8:04 pm

    miroslav wrote:

    the real problem is that a pump-jet submarine can stay submerged for only 15 min.

    what the hell are you talking about??
    avatar
    miroslav

    Posts : 106
    Points : 108
    Join date : 2016-11-16
    Location : Land of Serbia

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  miroslav on Wed May 06, 2020 9:30 pm

    owais.usmani wrote:
    miroslav wrote:

    the real problem is that a pump-jet submarine can stay submerged for only 15 min.

    what the hell are you talking about??



    My bad, 20min.

    You'r welcome!
    Singular_Transform
    Singular_Transform

    Posts : 834
    Points : 824
    Join date : 2016-11-13

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  Singular_Transform on Thu May 07, 2020 12:18 am

    [quote="miroslav"]
    owais.usmani wrote:



    My bad, 20min.

    You'r welcome!

    I can see that the navy guy wish a bulet into his head instead of to contionue this discussion with that women : D

    You can smell the pain .
    Tsavo Lion
    Tsavo Lion

    Posts : 4473
    Points : 4469
    Join date : 2016-08-15
    Location : AZ, USA

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  Tsavo Lion on Sat May 23, 2020 5:08 am

    Kazan SSGN: https://ria.ru/20170331/1491228598.html?in=t

    Sponsored content

    Russian Nuclear Submarine Force: Discussion - Page 21 Empty Re: Russian Nuclear Submarine Force: Discussion

    Post  Sponsored content


      Current date/time is Wed Sep 30, 2020 11:10 am