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Arihant Class SSBN - India's Domestic Nuclear Submarine

Discussion in 'Indian Navy' started by SpArK, Aug 7, 2012.

  1. Ankit Kumar 001

    Ankit Kumar 001 Major Technical Analyst

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    INS Arihant has been under sea trials from 2013 only [at least, means its possible that it could be in sea trials before that too ] , which is told that it started sea trials in late 2014.

    So you try to estimate.... S3 ...... S4.....
     
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  2. Agent_47

    Agent_47 Admin - Blog IDF NewBie

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    ‘Aridaman’, India’s second nuclear-armed submarine, is ready for launch

    India’s second nuclear-armed submarine is now ready for launch, a critical step towards a planned quick induction into the Indian Navy to strengthen strategic deterrence. The ‘Aridaman’, which has been under construction at the secretive Ship Building Centre in Visakhapatnam, could be launched as early as in the next six to eight weeks.

    Sources have told ThePrint that the submarine – larger, more powerful and better equipped than India’s first nuclear sub INS Arihant – has undergone all work required at the dry dock and will shortly be launched into water for further outfitting.

    The launch ceremony is a critical milestone in naval shipbuilding, signifying that all major work including integration of heavy machinery and equipment is complete. The ceremony would also require political clearance. The 2009 launch of INS Arihant was a major media event by the UPA government.

    The status and progress on Aridaman has been a tightly guarded secret, with no Indian official authorised to talk about the project. The nuclear submarine program is directly monitored by the National Security Advisor (NSA).

    After the launch, which is basically a flooding of the dry dock followed by a gentle slipping of the submarine into the sea, the Aridaman will be moved to ‘Site Bravo’, a covered test area for further work. The launch is technically possible any time now but it will be a while – a year at the earliest – for the boat to be ready for sea trials.

    BIG PROGRESS

    Although INS Arihant is the first Indian nuclear armed boat, the long developmental period, testing and technological issues it faced has meant that it is more of a technology demonstrator. The Aridaman is set to be the first credible underwater nuclear weapon delivery platform, with shipbuilders and designers learning from the first construction.

    Not only is the boat larger and equipped to carry more of the K-15 submarine launched missiles, it will also have a more powerful reactor than the 83 MW one on board the Arihant. More importantly, Indian shipbuilders have drastically cut down construction time on the boat.

    Work on the Aridaman started in earnest after the Arihant was launched in 2009. While the Arihant took 11 years to reach the launch stage, Aridaman has got there within eight. The Indian Navy is hopeful that the time to induction will also be cut. Faced with technological challenges, it took the Arihant seven years to go from launch to induction – a quiet commissioning was done last year – but the Navy is believed to be looking at an ambitious two-year target for the Aridaman.

    THE NEXT STEPS

    After being moved under the power of harbour tugs to Site Bravo, the Aridaman will undergo several tests over the next year, including the crucial activation of the nuclear reactor. All major components that include the all-important missile launchers and torpedo tubes are already integrated and the submarine would be tested using external power.

    After the systems pass all safety tests using external power, the nuclear reactor of the submarine – developed by the Bhabha Atomic Research Centre (BARC) – will be activated. After the nuclear reactor stabilises, the boat will again undergo safety checks for all systems before being moved to the stage of harbour trials.

    Sea trials will subsequently commence to take the submarine through the rigours of combat duty. This will include submerged tests, high speed cruises and firing from torpedo and missile tubes. Indian Navy crews – who are also operating the INS Chakra nuclear attack submarine leased from Russia – will be transferred to carry out tests and the induction process for Aridaman.

    Besides the plans for nuclear armed submarines, India has also cleared a project to construct a new line of nuclear-powered but conventionally-armed submarines (SSNs). The mammoth plan, expected to cost over $12 billion, is for six modern vessels to be made in India. First official comments on the plan came in 2015 with a senior Navy officer revealing that the design work had started on the project and the aim is to come out with a new class of submarines within 15 years.

    http://theprint.in/2017/08/24/exclusive-aridaman-indias-second-nuclear-armed-submarine-ready-launch/
     
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  3. lca-fan

    lca-fan Major SENIOR MEMBER

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    It was already on trials and it should be ready for formal induction and PATROL (or maybe was already Patrolling).

    What is surprising is timing of announcement with India locking horns with China at Doklam, it is also a subtle way to remind China we have assets which can be used if matter is escalated and bring Lizard to table for negotiation and resolving Doklam and other border issues permanently.

    Indian Navy is our true Savior with immaculate planning and Indian Army too to some extent with IAF being a BIG Disappointment (they had set their capabilities vis a vis Pakistan while the real enemy was always China).
     
  4. Ved Mishra

    Ved Mishra Lieutenant FULL MEMBER

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    When will a clear picture of the type be made public?
     
  5. Blackjay

    Blackjay Developers Guild Developers -IT and R&D

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    This is the stuff I am waiting to know more about.
    :pop:

    Their was speculation that all Arihant class will be more or less same and for any significant capacity addition a follow up class will have to be built.This because modifying setup of yard is very time consuming and it's better to build 4-5 of same class before attempting anything bigger.Will love to know whether their are any significant differences.
     
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  6. PARIKRAMA

    PARIKRAMA Captain IDF NewBie

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    Source Based news

    Aridhaman Launched about X months back.. (won't reveal exact date..)

    125 MW Reactor with longer life and improved design

    8 V Silos

    Noise level further improved then First boat due to improved material and design maturity..

    K5 ejection test completed.. next set of tests will be done as per schedule..

    Payload very different then before.. capable of hitting multiple targets at a distance of 200+ kms from the original target as done by unitary warhead..

    The next 2 subs will get out soon as well...

    Good news on SSN reactor will come out soon.. that reactor will be used for heaviest SSBN (16 silos housing only ICBM of longest range) and for the SSNs

    :bounce-grn:
     
  7. lca-fan

    lca-fan Major SENIOR MEMBER

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    INS Aridhaman is having 8 silos as compared to INS Arihant and 150 mw reactor instead of 83 mw and is 8000 tonnes whereas Arihant is 6000 tonnes, I suppose.......
     
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  8. vstol jockey

    vstol jockey Colonel MILITARY STRATEGIST

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    Pls read my post about it sometime back. I told you that it is already launched and doing harbor trials.
     
  9. Blackjay

    Blackjay Developers Guild Developers -IT and R&D

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    Yeah I have read about all that.But far too many of our Forum experts (especially from BRF)doubt that.Since usually submarines follow the same design for 3-6 boats before a newer model is introduced.If Aridhaman having more silos and bigger reactor is confirmed officialy, then I will love to see their reaction.:angel:
     
  10. X_Killer

    X_Killer Captain FULL MEMBER

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    Somebody, please share the desired specifications set for Indigenous SSNs.
     
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  11. kaku

    kaku Major Technical Analyst

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    [​IMG]

    From Another Indian forum.
     
  12. lca-fan

    lca-fan Major SENIOR MEMBER

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    INS Aridhaman: More Power, More Weapons and Emergence of India’s true Nuclear Triad
    Published August 25, 2017 SOURCE: Anand SG / FOR MY TAKE / IDRW.ORG
    [​IMG]

    In my previous report on INS Aridhaman (Click Here ), Snoop about possible 2017 Soft launch of India’s Second Nuclear Ballistic Missile Submarine is turning into a reality after ” The Print ” report also confirmed possible Soft launch soon by PM Modi in coming weeks. Following INS Aridhaman development closely and keeping track of unverified data, there has been a lot of buzz, lately for some time now that the Aridhaman has been carrying out system check in the dry docks though external power, even though Nuclear reactor is yet to go critical. Bhabha Atomic Research Centre (BARC) already has commissioned and assembled Second nuclear reactor for the submarine which will be more powerful than the reactor which was installed in the lead ship Arihant which has already been commissioned in the Indian Navy last year. Coming nearly 8 years after Arihant had its soft launch in 2009, Aridhaman according to unconfirmed reports will share same design but will have stretched centreline to accommodate more weapons and bigger Nuclear reactor and will also have Second generation upgrades to its communication and Sonar suite to make it much more lethal in the sea. INS Aridhaman is likely to take much shorter time to complete its Sea trials and induction due to rigours trials already been carried out on INS Arihant of many Critical weapons systems like K-15 and K-4 Submarine-launched ballistic missile (SLBM). Aridhaman will also likely be the first submarine to carry India’s next generation long ranged K-5 Submarine-launched ballistic missile with MIRV warheads up to 6000-8000 km range targets. Follow on Sister ship to INS Aridhaman is already under fabrication stage and will be Similar to Aridhaman but will receive some minor updates as technology progresses. Once the third ship is launched, INS Arihant will be used to train next generation submariners for operating Nuclear Submarines since Indian Navy after completion of SSBN Program will start work on SSN ( Nuclear Attack ) Submarine program for which it has already got government clearance for construction of Six submarines.

    http://idrw.org/ins-aridhaman-power-weapons-emergence-indias-true-nuclear-triad/#more-145640 .
     
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  13. ashkum2278

    ashkum2278 2nd Lieutant FULL MEMBER

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    The completion of the third vessel is expected in September or October of this year.

    Would the production for this kind of vessel stop at 4 or will we get a fifth & sixth? Considering the 5th and 6th will be churned out at at lightning speed.
     
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  14. vstol jockey

    vstol jockey Colonel MILITARY STRATEGIST

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    This construction will stop ar Arihant+3, total four. After that we will have the six SSNs.
     
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  15. Karnan

    Karnan 2nd Lieutant FULL MEMBER

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    Will the next generation SSBN development happen at the same time?
     

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