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    Project 885: Yasen class

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    GarryB
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    Re: Project 885: Yasen class

    Post  GarryB on Wed Sep 30, 2015 1:40 am

    Cut the name calling... it makes you look like children.

    Also import substitution can effect production and projects in many ways... a product that includes no foreign parts at all can be effected if one of the companies supplying parts has had to prioritise production of other components needed for other projects.

    For instance turbine generators made in Russia by Saturn might be delayed because production is being prepared at Saturn for producing gas turbine engines for Frigates and Destroyers and corvettes that were otherwise made in the Ukraine or Germany.

    Or batteries made for the subs are delayed because lots of other projects now need Russian made batteries or other support equipment that was not previously planned for.


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    jhelb
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    Re: Project 885: Yasen class

    Post  jhelb on Wed Oct 14, 2015 7:29 pm

    artjomh wrote:All submarines starting with Kazan got only indigenous components.

    artjomh, can a submarine fire torpedos at an [adversary] submarine that is behind it (maybe by changing gyro angles)? Thanks.

    artjomh
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    Re: Project 885: Yasen class

    Post  artjomh on Wed Oct 14, 2015 8:44 pm

    jhelb wrote:
    artjomh wrote:All submarines starting with Kazan got only indigenous components.

    artjomh, can a submarine fire torpedos at an [adversary] submarine that is behind it (maybe by changing gyro angles)? Thanks.

    Why not?

    Even in Word War II submarines used to fire torpedoes at targets with bearing over 45 deg, using stern torpedo tubes. You don't have stern tubes anymore because torpedos can maneuver now (and ship structure is radically different today), but the principle is pretty much the same.

    There was even one incident during WW2 where an American submarine essentially torpedoed itself because the torpedo circled around back on the mother sub.

    AlfaT8
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    Re: Project 885: Yasen class

    Post  AlfaT8 on Sat Oct 17, 2015 1:43 am

    artjomh wrote:
    jhelb wrote:
    artjomh wrote:All submarines starting with Kazan got only indigenous components.

    artjomh, can a submarine fire torpedos at an [adversary] submarine that is behind it (maybe by changing gyro angles)? Thanks.

    Why not?

    Even in Word War II submarines used to fire torpedoes at targets with bearing over 45 deg, using stern torpedo tubes. You don't have stern tubes anymore because torpedos can maneuver now (and ship structure is radically different today), but the principle is pretty much the same.

    There was even one incident during WW2 where an American submarine essentially torpedoed itself because the torpedo circled around back on the mother sub.

    Those were just the tip of the iceberg back then.

    George1
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    Re: Project 885: Yasen class

    Post  George1 on Wed Dec 09, 2015 3:51 pm

    Russian Pacific Fleet to get first Yasen sub 2017-2018 — deputy commander

    i expected more speed in construction of yasen class


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    George1
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    Re: Project 885: Yasen class

    Post  George1 on Fri Dec 18, 2015 6:29 am

    Fifth submarine Project 885 "Ash" will be laid on Sevmash in 2016


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    Isos
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    Re: Project 885: Yasen class

    Post  Isos on Mon Feb 22, 2016 8:09 pm

    What are the capacities of the Yasen's sonar ?

    I just found on the wikipedia article of the Astute class that its Thales 2056 sonar is the best and was tested against a Virginia class.

    Do you have some article in English about russian sonars ?

    PapaDragon
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    Re: Project 885: Yasen class

    Post  PapaDragon on Sun Mar 20, 2016 7:16 pm


    Severodvinsk testing complete:

    http://sdelanounas.ru/blogs/75512/

    max steel
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    Re: Project 885: Yasen class

    Post  max steel on Fri Apr 01, 2016 4:52 pm

    Russia's Next Super Submarine Is Almost Ready for War


    x_54_u43
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    Re: Project 885: Yasen class

    Post  x_54_u43 on Sat Apr 02, 2016 1:09 am

    Isos wrote:What are the capacities of the Yasen's sonar   ?

    I just found on the wikipedia article of the Astute class that its Thales 2056 sonar is the best and was tested against a Virginia class.

    Do you have some article in English about russian sonars ?

    Found your problem.

    Also, forget about trying to find information on one of the most sensitive pieces of equipment on a submarine that is brand new.

    George1
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    Re: Project 885: Yasen class

    Post  George1 on Mon Apr 04, 2016 7:12 am

    Severodvinsk tested firings of torpedo "Физик".

    http://eagle-rost.livejournal.com/633373.html


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    Isos
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    Re: Project 885: Yasen class

    Post  Isos on Mon Apr 04, 2016 7:28 pm

    x_54_u43 wrote:
    Isos wrote:What are the capacities of the Yasen's sonar   ?

    I just found on the wikipedia article of the Astute class that its Thales 2056 sonar is the best and was tested against a Virginia class.

    Do you have some article in English about russian sonars ?

    Found your problem.

    Also, forget about trying to find information on one of the most sensitive pieces of equipment on a submarine that is brand new.

    It's not said just on wikipedia that French sonars are among the best.

    I didn't meant technical information but some interview of ex sailors about their experience, or something like that.

    I have read once on an article a comment (looked like it was true but who knows) made by an ex french sailor who said during a nato maritime exercice consisting in finding ennemy subs, a soviet sub surfaced in the center of the nato formation undetected while all the ships had activated their active search sonars. The immadiatly ended the exercice and tried to found it.

    SeigSoloyvov
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    Re: Project 885: Yasen class

    Post  SeigSoloyvov on Sat Apr 09, 2016 9:00 pm

    Isos wrote:
    x_54_u43 wrote:
    Isos wrote:What are the capacities of the Yasen's sonar   ?

    I just found on the wikipedia article of the Astute class that its Thales 2056 sonar is the best and was tested against a Virginia class.

    Do you have some article in English about russian sonars ?

    Found your problem.

    Also, forget about trying to find information on one of the most sensitive pieces of equipment on a submarine that is brand new.

    It's not said just on wikipedia that French sonars are among the best.

    I didn't meant technical information but some interview of ex sailors about their experience, or something like that.

    I have read once on an article a comment (looked like it was true but who knows) made by an ex french sailor who said during a nato maritime exercice consisting in finding ennemy subs, a soviet sub surfaced in the center of the nato formation undetected while all the ships had activated their active search sonars. The immadiatly ended the exercice and tried to found it.

    you ever find any historical backing for this, that sounds like it would be an interesting read.

    Militarov
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    Re: Project 885: Yasen class

    Post  Militarov on Sat Apr 30, 2016 5:14 pm

    Militarov wrote:"Severodvinsk" (885):





    Testing Kalibr














    Isos
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    Re: Project 885: Yasen class

    Post  Isos on Sat Apr 30, 2016 8:38 pm

    SeigSoloyvov wrote:
    Isos wrote:
    x_54_u43 wrote:
    Isos wrote:What are the capacities of the Yasen's sonar   ?

    I just found on the wikipedia article of the Astute class that its Thales 2056 sonar is the best and was tested against a Virginia class.

    Do you have some article in English about russian sonars ?

    Found your problem.

    Also, forget about trying to find information on one of the most sensitive pieces of equipment on a submarine that is brand new.

    It's not said just on wikipedia that French sonars are among the best.

    I didn't meant technical information but some interview of ex sailors about their experience, or something like that.

    I have read once on an article a comment (looked like it was true but who knows) made by an ex french sailor who said during a nato maritime exercice consisting in finding ennemy subs, a soviet sub surfaced in the center of the nato formation undetected while all the ships had activated their active search sonars. The immadiatly ended the exercice and tried to found it.

    you ever find any historical backing for this, that sounds like it would be an interesting read.

    No I didn't. The better articles are made by ex sailors that tell their experiences but it's difficult to find them.

    Singular_trafo
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    Re: Project 885: Yasen class

    Post  Singular_trafo on Sun May 01, 2016 4:57 pm

    x_54_u43 wrote:
    Isos wrote:What are the capacities of the Yasen's sonar   ?

    I just found on the wikipedia article of the Astute class that its Thales 2056 sonar is the best and was tested against a Virginia class.

    Do you have some article in English about russian sonars ?

    Found your problem.

    Also, forget about trying to find information on one of the most sensitive pieces of equipment on a submarine that is brand new.


    The build in main sonar of the submarines good only against noisy targets,active searching and for communication.

    The main sonar to detect enemy submarines is the towed sonar(s) .

    The main sonar performance practically irrelevant .Even a side flank array can give higher detection performance the the main spherical or cylindrical array.


    Of course you has to rotate the ship to to scann all direction, but that is a small penalty compared to the performance.


    Austin
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    Re: Project 885: Yasen class

    Post  Austin on Tue Jun 14, 2016 6:35 am

    Yasen


    Austin
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    Re: Project 885: Yasen class

    Post  Austin on Mon Jun 27, 2016 7:58 am

    Is Sonar of Yasen same as shown in this graphic ? I can see a huge rectangular sonar on the middle of the hull


    Singular_trafo
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    Re: Project 885: Yasen class

    Post  Singular_trafo on Mon Jun 27, 2016 8:58 pm

    Austin wrote:Is Sonar of Yasen same as shown in this graphic ? I can see a huge rectangular sonar on the middle of the hull


    Implausible.

    Very expensive.More sensible if they using several,small sensor block installed in a line on the side of the submarine, say at least with 1.5 meter distance each.

    GarryB
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    Re: Project 885: Yasen class

    Post  GarryB on Tue Jun 28, 2016 6:22 am

    a rectangle that size looks more like a crew compartment area like living quarters or the command area, or the location of something like an AIP etc etc.

    Of course the flank arrays can be enormous on a Soviet or Russian sub as they are outside of the pressure hull...


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    TheRealist
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    Re: Project 885: Yasen class

    Post  TheRealist on Fri Jul 29, 2016 1:28 pm

    Perm is now officially a go.

    Sdelanounas.ru


    hoom
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    Re: Project 885: Yasen class

    Post  hoom on Fri Jul 29, 2016 7:35 pm

    That section looks kinda narrow for such a big Sub Suspect

    Regarding that large rectangle on the side, there are a couple of pics of Severodvinsk launch that show some kind of rectangle there, a big passive array seems pretty likely to me.


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    Re: Project 885: Yasen class

    Post  SeigSoloyvov on Sat Jul 30, 2016 3:10 am

    According to this article only 7 Yasens will be made.

    http://sputniknews.com/military/20160729/1043755852/russia-nuclear-submarines.html

    shame, they need at least ten of them.

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    Re: Project 885: Yasen class

    Post  Svyatoslavich on Sat Jul 30, 2016 3:13 am

    hoom wrote:That section looks kinda narrow for such a big Sub Suspect
    I guess it is the inner pressure hull.

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    Re: Project 885: Yasen class

    Post  kvs on Sat Jul 30, 2016 4:05 am

    Svyatoslavich wrote:
    hoom wrote:That section looks kinda narrow for such a big Sub Suspect
    I guess it is the inner pressure hull.

    Why assume it is not from the narrowing tail part? The gap between the inner outer hulls is not that large.

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