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Indian Nuclear Attack Submarines (SSN) - Updates & Discussions

Discussion in 'Indian Navy' started by ManuSankar, Jun 7, 2012.

  1. GuardianRED

    GuardianRED Captain FULL MEMBER

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    Curious- Are these lease restricted in any way?? ie they can used as we pleased with it?
     
  2. randomradio

    randomradio Colonel Technical Analyst

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    No. Only 1.

    We will either extend the Nerpa lease or return the sub after the 10 years are up. And we will go for a new Akula class.

    The article is referring to the first INS Chakra that we leased back in 1988.
    https://en.wikipedia.org/wiki/Soviet_submarine_K-43
     
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  3. GuardianRED

    GuardianRED Captain FULL MEMBER

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    Yes i see it now, damn the article confused me with the Chakra III

    BUT, not saying it is confirmed , Livefist fellows say that 2 subs will be leased and then our friend Prasun says that the lease of the Nerpa is just to cover the actual buyout of the Sub
     
  4. randomradio

    randomradio Colonel Technical Analyst

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    We can't carry nukes on it.
     
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  5. GuardianRED

    GuardianRED Captain FULL MEMBER

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    Yes but apart from that , it can be used as an offensive platform yes?
     
  6. randomradio

    randomradio Colonel Technical Analyst

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    Yeah, we can use it however we want.
     
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  7. Gessler

    Gessler Lt. Colonel Technical Analyst

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    Replying to your query in a more appropriate thread.

    Not known yet. Very little info in the public domain about SSN program....even all the information we have is from unofficial (nevertheless somewhat reliable) sources.

    What we gathered from these sources is that:

    • The design of the SSN comes from Russia
    • They will possibly be built at L&T's Kattupalli greenfield shipyard
    • The first boat is expected to be launched within 2025
    • Eventual requirement could be between 12 to 18 boats (current plans sanction for 6)
    • They likely displace approx. 5,000T
    • They will likely have a smaller reactor than Arihant but with very high efficiency compared to current designs
    • They will deploy torpedos as well as cruise missiles that can be launched from 533mm torpedo tubes (BrahMos-NG, Nirbhay etc.)
    • The payment to Russia for the design was apparently done earlier this year, with the sanctioned amount contained within the deal value of the Unit-5 & 6 of Kudankulam NPP.
     
    Last edited: Sep 26, 2017
  8. Bloom 17

    Bloom 17 2nd Lieutant FULL MEMBER

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    @Hellfire @Gessler @PARIKRAMA @Agent_47 can anyone provide any material on underwater warfare conditions in the Indian ocean? I read the conditions are different compared to other parts of the world.
     
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  9. Hellfire

    Hellfire Devil's Advocate Staff Member MODERATOR

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    Yes that is true. The warm waters create greater difficulties for accurate detection of submarines than the cooler waters of, say North Atlantic. As for material on underwater warfare conditions, I am not clued up on exact mechanics and data of same.
     
  10. randomradio

    randomradio Colonel Technical Analyst

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    This info is on a need to know basis. You have to be a naval officer or an established defence scientist to even have an idea about this. Those who have this info will never tell you. There is no literature available for it also.

    But you can get basic underwater information from non-defence related industries, like fishing, deep sea mining etc. But this info won't help you a lot.
     
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  11. kurup

    kurup 2nd Lieutant FULL MEMBER

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    AFAIk Russia do not operate any 5000T SSN .
     
  12. Gessler

    Gessler Lt. Colonel Technical Analyst

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    That's because it isn't developed yet :biggthumpup:
     
  13. lca-fan

    lca-fan Major SENIOR MEMBER

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    India’s only nuclear submarine damaged in accident
    MANU PUBBY3 October, 2017

    [​IMG]
    INS Chakra | Source: Indian Navy
    Taken on a 10-year lease from Russia, INS Chakra is currently berthed at Vizag; will sail after repairs

    New Delhi: India’s nuclear-powered submarine, INS Chakra, has suffered “some damage” in an accident and could require substantial repair work to get it back in shape.

    The attack submarine, obtained on a 10-year lease from Russia, has not sailed for a month and is berthed at its home port of Visakhapatnam for repairs.

    Sources told ThePrint that the submarine — currently India’s only operational nuclear-powered vessel — suffered damage to its sonar dome in the accident. The sonar dome is located at the forward portion of the submarine, beneath the torpedo tubes.

    While details of the incident are yet to emerge, sources said that the damage could be the result of either a collision at sea or accidental scraping while entering the harbour. The Indian Navy refused to comment on the incident.

    Repair work on the submarine is likely to be complicated given that the sonar dome is made of titanium, a difficult metal that requires both specialised machinery and manpower to work on. However, the indigenous Arihant nuclear armed submarines are also being made in Visakhapatnam and that could help.

    The Visakhapatnam harbour has recorded incidents in the past when warships have touched the bottom while navigating the tight water channel. In January 2014, the INS Airavat — a Shardul class amphibious warship — suffered damage to its port propeller while entering the harbour.

    Inducted in April 2012, INS Chakra is a modernised Russian Akula-II class submarine, known as one of the stealthiest in the world after American vessels of similar class. While the submarine is nuclear powered, it does not carry nuclear-tipped missiles on board and is designed to be a silent killer — it lurks underwater to sink enemy ships and take out land-based targets.

    The stealthy nature of nuclear-powered boats, along with the increasing traffic at sea, has meant that accidents have become common. At least two such accidents had taken place last year itself. In July 2016, a British nuclear attack submarine, HMS Ambush, collided with a merchant vessel off the coast of Gibraltar suffering external damage. A month later, the USS Louisiana nuclear missile submarine collided with a naval support vessel at sea, suffering damage to its starboard hull.

    The story behind the Chakra
    Taken on a 10-year lease in 2012, the Chakra has a displacement of 12,000 tonnes. It is powered by a 190 MW reactor and can reach speeds of over 30 knots. The vessel is manned by 80 crew members and is equipped with tactical missiles, a new fire control systems, sonars and contemporary optronic periscopes and surveillance systems.

    Originally named the Nerpa, the submarine was launched in 1991 but was mothballed after the collapse of the Soviet Union. India later took it on a 10-year lease for close to $1 billion.

    India is now moving ahead with its plans to lease another nuclear attack submarine from its old ally Russia for an estimated $2.5 billion that will include the refit of the boat at a Cold War era shipyard, followed by a 10-year deployment with the Navy. The new ship is likely to be inducted after the completion of the lease period of Chakra.

    https://theprint.in/2017/10/03/acci...owered-submarine-cracks-appear-in-sonar-dome/
     
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  14. ranadd

    ranadd 2nd Lieutant FULL MEMBER

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    How is it the only operational one?
     
  15. Bloom 17

    Bloom 17 2nd Lieutant FULL MEMBER

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    Not again!!!!
     

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