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NDTV Exclusive: This is INS Arihant, First Made-in-India Nuclear Submarine

Discussion in 'World Economy' started by INDIAN NATIONALIST, Aug 25, 2014.

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  1. INDIAN NATIONALIST

    INDIAN NATIONALIST Major SENIOR MEMBER

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    NDTV Exclusive: This is INS Arihant, First Made-in-India Nuclear Submarine
    All India | Pallava Bagla, Vishnu Som | Updated: August 20, 2014 20:18 IST

    [​IMG]
    The first clear image of India's nuclear ballistic missile submarine, the INS Arihant, the Naval arm of India's nuclear triad


    The INS Arihant, country's first made-at-home nuclear submarine is being built in top secret conditions at Visakhapatnam in Andhra Pradesh.

    NDTV's Science Editor Pallava Bagla has accessed the first images of the 6,000-tonne vessel, the first of a class of three nuclear-powered ballistic missile submarines with a displacement of 6,000 tonnes. She is designed to carry four nuclear-tipped submarine-launched ballistic missiles called the K-4 which have a range of 3,500 kilometres or a dozen Bo 5 missiles which can strike targets about 700 kilometres away.

    The heart of the Arihant is its nuclear reactor, an Indian designed-and-built 83MW pressurized water reactor. The Arihant still faces its biggest trial - the test launch of a ballistic missile while submerged. It is only once that happens that the Arihant will be battle-worthy.

    When the submarine is declared fighting-fit, India will become one of only six countries in the world with the knowledge of designing, engineering and operating a nuclear submarine.

    Nuclear submarines are the ultimate stealth weapon. Highly mobile and technically capable of remaining underwater for months if required, a ballistic missile submarine effectively gives a nuclear power like India the ability to keep shifting a mobile nuclear base which needs to be prepared to strike after authorized launch codes are transmitted from the country's nuclear command. Detecting nuclear submarines underwater has become a finely calibrated art practiced by the superpowers through decades of the Cold War. The more quiet a nuclear submarine, the more stealthy it is.

    India presently operates another nuclear submarine, the INS Chakra, a nuclear attack submarine of the Akula-2 class from Russia. The Chakra does not carry nuclear weapons but would likely be deployed with the Arihant during its pre-commissioning trials to protect this key nuclear asset.

    Like other key strategic weapons systems, the INS Arihant is being developed under the aegis of the Defence Research and Development Organization (DRDO), which is accountable to the Defence Ministry. Prime Minister Narendra Modi visited the agency in Delhi today and said, "At least five DRDO labs should be identified exclusively for innovation with young scientists up to the age of 35 years. They should be managed by leaders also in the same age group". (Also read: PM Modi at DRDO Flays 'Chalta Hai' Attitude)

    "DRDO is becoming hollow at the bottom," says Dr Avinash Chander, the agency's chief. He said he can induct only about 70 fresh scientists every year instead of the nearly 300 recruits it used to add annually till recently.

    Story First Published: August 20, 2014 16:47 IST

    NDTV Exclusive: This is INS Arihant, First Made-in-India Nuclear Submarine
     
  2. INDIAN NATIONALIST

    INDIAN NATIONALIST Major SENIOR MEMBER

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    Navy gets new facility to communicate with nuclear submarines prowling underwater

    Rajat Pandit, TNN | Jul 31, 2014, 08.48PM IST
    [​IMG]
    Nuclear-powered submarines, armed with nuclear-tipped missiles, in turn, are considered the most effective and difficult-to-detect nuke platform since they can operate underwater at long ranges for months at end.

    NEW DELHI: With India planning a larger fleet of nuclear-powered submarines, which can prowl underwater for several months at a time and let loose their nuclear-tipped missiles as and when required, the Navy has acquired a new advanced facility to communicate with the silent predators.

    The state-of-the-art very low frequency (VLF) transmitting station was commissioned at INS Kattabomman in Tirunelveli (Tamil Nadu) by Navy chief Admiral RK Dhowan on Thursday.

    "The new facility will boost our ability to communicate with submarines, which have trailing wire antenna to pick up the coded VLF radio waves, on an uninterrupted basis throughout the year," said an officer.

    Only a handful of nations have such a VLF capability, which is critical to pass coded orders to nuclear submarines on long-range deterrent patrols. Diesel-electric submarines have to surface every few days to get oxygen to recharge their batteries and have limited endurance due to fuel requirements.

    Nuclear-powered submarines, armed with nuclear-tipped missiles, in turn, are considered the most effective and difficult-to-detect nuke platform since they can operate underwater at long ranges for months at end.

    [​IMG]
    The submarine communication centre at INS Kattabomman.

    India is down to just 13 old diesel-electric submarines, barely half of which are operational at any given time, and a single nuclear-propelled submarine INS Chakra on lease from Russia without any long-range missiles.

    But India's first three SSBNs (nuclear-powered submarines with nuclear ballistic missiles) are already being built at the secretive Ship-Building Centre at Vizag to complete the country's nuclear weapons triad - the capability to fire nukes from land, air and underwater.

    The first, the 6,000-tonne INS Arihant, is slated to go for extensive sea trials soon after its miniature 83MW pressurized light-water reactor, which went "critical" in August last year, attains "full power" in the next couple of months. Moreover, there is an ongoing proposal to build six SSNs (nuclear-powered attack submarines, usually without ballistic missiles), as reported by TOI earlier.

    timesofindia.indiatimes.com/india/Navy-gets-new-facility-to-communicate-with-nuclear-submarines-prowling-underwater/articleshow/39371121.cms
     
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