Arihant-class SSBN - News & Discussions

Paro

Bloom17
Dec 2, 2017
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This theory doesn't fall in a line. I think the INS arighat isnt the second nuclear submarine launched but actually the third. There should be another nuclear sub floating around somewhere launched earlier prior to this launch. Only then the clearing space for next hulls looks believable.
 

Shashank

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Dec 4, 2017
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India quietly launches INS Arighat, 2nd 'Made in India' Nuclear Submarine

Indian Defence Minister Nirmala Sitharaman has announced the launch of the second indigenously designed Arihant-class nuclear-powered ballistic missile submarine (SSBN) on order for the Indian Navy (IN).

Official sources told Jane’s that the launch of Arighat , which took place during a low-key ceremony held at the Ship Building Centre (SBC) at Visakhapatnam on 19 November, entailed flooding the dry dock housing the SSBN to enable it to float into the surrounding waters for additional fitment ahead of its commissioning in 2020-21.

India has already started groundwork to develop its next successor with the development of next-generation Ballistic Missile Submarine. Arighat will be succeeded in the dry dock by two similar SSBNs that have been temporarily designated S4 and S4*.

S4 and S4 will be armed with K-4 and K-5 SLBMs. They will be India’s Second line of SSBN by the time all 6 Nuclear Submarines are operational.
 

Ashwin

Agent_47
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Nov 30, 2017
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India quietly launches second SSBN

Indian Defence Minister Nirmala Sitharaman has announced the launch of the second indigenously designed Arihant-class nuclear-powered ballistic missile submarine (SSBN) on order for the Indian Navy (IN).
Official sources told Jane’s that the launch of Arighat , which took place during a low-key ceremony held at the Ship Building Centre (SBC) at Visakhapatnam on 19 November, entailed flooding the dry dock housing the SSBN to enable it to float into the surrounding waters for additional fitment ahead of its commissioning in 2020-21.
Arighat will be succeeded in the dry dock by two similar SSBNs that have been temporarily designated S4 and S4*.

India quietly launches second SSBN | Jane's 360
 
T

Tarun

TOP SECRET : New Report Reveals India’s Push For Building A Nuclear Submarine Fleet
Tuesday, December 12, 2017
By: Swarajya Mag



India’s costliest defence project — a Rs 90,000 crore push to develop and construct a fleet of nuclear-powered and nuclear-armed submarines monitored directly by National Security Adviser Ajit Doval — has been making progress away from media glare.

The effort has borne fruit in recent years in the form of INS Arihant – India’s first indigenously built SSBN – a submarine that is powered by a nuclear reactor and is equipped with nuclear-tipped ballistic missiles. The second Arihant class submarine, INS Arighat, was launched by Defence Minister Nirmala Sitharaman during a low profile ceremony at the Ship Building Centre (SBC) drydock in Visakhapatnam on 19 November, a report by Sandeep Unnithan of India Today has revealed.

A high-profile launch of Arighat, a move that could have helped the government given elections in Gujarat, was rejected by the Prime Minister’s Office to maintain a high level of secrecy, the report has revealed. Arighat would undergo extensive sea trials for three years before being commissioned into the Indian Navy.

Two other SSBNs, which are still unnamed, will be launched by 2020 and 2022. The two boats will displace 1,000 tonnes more than the Arihant class and will be equipped with eight ballistic missiles or twice the Arihant's missile load. The design was tweeted a decade ago to make space for additional missiles after the then finance minister P Chidambaram questioned the utility of having just four nuclear-tipped missiles on a boat worth billions.

The nuclear reactor for these submarines has been developed by the Atomic Research Centre, and the Defence Research and Development Organisation (DRDO) has developed submarine-launched ballistic missiles (SLBMs) to arm the boats.

It doesn't end here. On 1 December, Navy Chief Admiral Sunil Lanba revealed that a Rs 60,000 crore project to build six indigenous nuclear-powered attack submarines (SSNs) had been kicked-off by the Navy. SSNs are conventionally armed submarines powered by nuclear reactors. Unlike the SSBNs, these boats do not carry nuclear-tipped missiles. Design work for the submarines, displacing around 6,000 tonnes, is currently underway at the submarine design centre in Gurgaon.

The Navy is also working on a new series of 13,500-tonne ballistic missile submarines. The boats, built under this project, will be capable of carrying 12 nuclear-tipped missiles, compared to four carried by the Arihant-class submarines. Submarines developed under this project, the report says, will be on par with those fielded by the five permanent members of the United Nations. To be built at least a decade from now, the submarines will have 80 per cent. indigenous component.

India is, therefore, working on three different nuclear submarine projects at the same time. Although the effort behind the projects is indigenous with 60 per cent of the component for the Arihant-class being sourced from local manufacturers, the Navy has benefited from close design and technical cooperation with Russia. New Delhi is currently in talks with Moscow to lease another Akula-class submarine to replace the existing INS Chakra after its lease ends in 2022. INS Chakra, having suffered damage in an incident earlier this year, is currently non-operational.

Another important development comes in the form of Project Varsha. The project involves the construction of a nuclear submarine base for the Navy, reportedly at the cost of Rs 30,000 crore by 2022. The base will have concrete pens to securely house one of India’s costliest and most-advanced defence platforms.

Induction of these submarines, many of which are expected to be in active service by the end of the next decade, will strengthen India’s nuclear triad – the ability to launch a nuclear attack from land, air and sea. Although the naval variant of the triad is currently operational with INS Arihant in service, it is not as strong as that of China’s. The People’s Liberation Army Navy has at least four SSBNs in service.

The push for nuclear submarines also assumes greater importance as India has reportedly decided to hold back on its plan to build a nuclear-powered aircraft carrier. A platform that is powered by nuclear reactors can remain operational for an extended period without breaks. Therefore, if India decides to have a conventional aircraft carrier, its reach would remain limited. Nuclear-powered submarines will be the only platforms that would provide the Indian Navy with the option to reach far-off waters.

Additionally, nuclear propulsion helps submarines move faster underwater, making them difficult to locate and track.

While the platforms are being designed and built, India has also been working on the armament. The DRDO has made progress on the K-series missiles, named after former president A P J Abdul Kalam. As part of the series, DRDO has developed K-15 (also called B-05) missile with a range of 750-km. While the K-15 has entered series production, the next missile in the series – K-4 – is in the trial phase.

The fourth test of the K-4, which has a range of around 3,500 km, is expected sometime in December, the India Today report says. This will be followed by tests of K-5 missile, a 5,000 km SLBM. Work on the fourth missile in this series – K-6 – began at DRDO's Hyderabad-based Advanced Naval Systems in February. The missile is reported to have a range of 6,000 km.

Source: Wrapped In Secrecy: New Report Reveals India’s Push For Building A Nuclear Submarine Fleet
 
T

Tarun

Is INS arighat 2nd S-2 class sub or S-3 class SSBN??
INS Arighat is the second Arihant-class submarine. It is the second nuclear-powered ballistic missile submarine being built by India.
Capture.JPG
 

Aashish

PARIKRAMA
Staff member
Administrator
Nov 30, 2017
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From Prasun K Blog

S-1 Half Boat PWR Testbed at Kalpakkam designed by Afrikantov OKBM
S-1 Half Boat PWR Testbed at Kalpakkam designed by Afrikantov OKBM.jpg


ARIHANT SSBN in IFR-2016 Commemorative Booklet


ARIHANT SSBN in IFR-2016 Commemorative Booklet.jpg



Indian Navy's projected S-5 SSBN Schematic

Indian Navy's projected S-5 SSBN Schematic.jpg


Indian Navy's projected S-5 SSBN

Indian Navy's projected S-5 SSBN.jpg




Missile Range

Missile Range.jpg



India's A-6 ICBM & K-06 SLBM

India's A-6 ICBM & K-06 SLBM.jpg
 

Shashank

Well-Known member
Dec 4, 2017
858
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Ban galore
INS Arihant left crippled after ‘accident’ 10 months ago

Indigenous nuclear submarine INS Arihant suffered major damage because of possible human error and has not sailed now for months, according to Navy sources. Arihant is the most important platform within India’s nuclear triad covering land-air-sea modes.
Arihant’s propulsion compartment suffered damage after water entered the area more than 10 months ago, according to details available with The Hindu. One naval source said water rushed in because a hatch on the rear side was left open by mistake. The Ministry of Defence did not respond to questions from The Hindu.
 

Shajida Khan

Senior member
Dec 27, 2017
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I wonder why India is not testing MIRV till date. We need MIRV to cause real deterance. A 8 warhead MIRV missile will mean 32 warheads on Arihant. Enough to lay waste entire Pakistan. S5 with 12 missile will mean 96 warheads. Enough to cause slight concern among Chinese. Now have two such platforms and you have enough to ensure survivability and massive concern for both our enemies.
 

Golden_Rule

Boundless Seeker
Dec 6, 2017
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INS Arihant left crippled after ‘accident’ 10 months ago

Indigenous nuclear submarine INS Arihant suffered major damage because of possible human error and has not sailed now for months, according to Navy sources. Arihant is the most important platform within India’s nuclear triad covering land-air-sea modes.
Arihant’s propulsion compartment suffered damage after water entered the area more than 10 months ago, according to details available with The Hindu. One naval source said water rushed in because a hatch on the rear side was left open by mistake. The Ministry of Defence did not respond to questions from The Hindu.

Wow, both the Nuclear submarines are damaged - Chakra and Arihant ???
 

Shashank

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Dec 4, 2017
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Wow, both the Nuclear submarines are damaged - Chakra and Arihant ???
Initially I thought it must be typing mistake by Hindu but Hindu has better quality control to I presumed its correct and posted it here. I hope Both Hindu and me are wrong and Arihant is doing well.
 

lcafanboy

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Dec 22, 2017
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INS Arihant left crippled after ‘accident’ 10 months ago

NEWS NATIONAL
NATIONAL INS Arihant left crippled after ‘accident’ 10 months ago
Under repair: INS Arihant stationed at the naval warehouse in Visakhapatnam in 2014.
Dinakar Peri
Josy Joseph
NEW DELHI , JANUARY 08, 2018 00:30 IST
UPDATED: JANUARY 08, 2018 00:54 IST
Nuclear submarine was damaged when water entered its propulsion chamber

Indigenous nuclear submarine INS Arihant suffered major damage because of possible human error and has not sailed now for months, according to Navy sources. Arihant is the most important platform within India’s nuclear triad covering land-air-sea modes.

Arihant’s propulsion compartment suffered damage after water entered the area more than 10 months ago, according to details available with The Hindu. One naval source said water rushed in because a hatch on the rear side was left open by mistake. The Ministry of Defence did not respond to questions from The Hindu.


The accident

The indigenous nuclear submarine, built under the Advanced Technology Vessel project (ATV), suffered damage while it was at harbour. Since the accident, the submarine has been undergoing repairs and clean up, and has not sailed, sources said.

Besides other repair work, many pipes had to be cut open and replaced. One naval source said the “cleaning up” is a laborious task in a nuclear submarine which is why there has been a delay in getting it back to sea.

Arihant’s issue has arisen soon after INS Chakra, the nuclear submarine leased from Russia, was reported to have suffered damage to its sonar domes while entering the harbour in Visakhapatnam in early October. However, INS Chakra has only a peripheral role in the nuclear triad, for both training and escorting, since it is INS Arihant that would carry nuclear missiles.

The absence of Arihant from operations came to the political leadership’s attention during the India-China military stand-off at Doklam. Whenever such a stand-off takes place, countries carry out precautionary advance deployment of submarine assets. INS Arihant (Code name S2) came into the limelight on July 26, 2009, the day Gursharan Kaur, wife of Prime Minister Manmohan Singh, broke the auspicious coconut to launch India’s first nuclear-powered ballistic missile submarine in Visakhapatnam.

After that, the submarine was towed to an enclosed pier for extensive harbour trials from the dry docks at Ship Building Centre, away from public view. INS Arihant was quietly commissioned into service in August 2016 and its induction is still not officially acknowledged. It is powered by an 83 MW pressurised light-water reactor with enriched uranium.

INS Arihant left crippled after ‘accident’ 10 months ago

Senior naval sources maintain that INS Arihant has not left the harbour for the last ten months or so, and has faced problems from the start. Initial delays could be just teething trouble, glitches at various stages of getting the reactor to go critical and during harbour trials; major differences between the Russian-supplied design and indigenous fabrication are said to have left many issues unaddressed satisfactorily.

Equipped with nuclear-tipped ballistic missiles, Arihant is India’s only operational Ship Submersible Ballistic Nuclear (SSBN) asset. It can stay undetected deep underwater for long periods, range far and wide, and launch nuclear missiles when required.

Arihant: top gun for second-strike

INS Arihant, India’s only operational ship submersible ballistic nuclear (SSBN) asset, is its most dependable platform for a second-strike, given the country “no first use” on nuclear weapons. The other options, land-based and air-launched, are easier to detect.

The submarine is manned by a staff of 100 with extensive training from the School for Advanced Underwater Warfare in Visakhapatnam and further hands-on training on INS Chakra, a Nerpa-class nuclear ship.

Arihant has been immobilised even as the second ballistic missile submarine, Arighat, was launched on November 19 for sea trials. The launch was kept a low-profile event attended by Defence Minister Nirmala Sitharaman and senior Navy officers.

A high-profile launch, to be attended by the Prime Minister, was put off.

Key to nuclear triad

INS Arihant and other nuclear launch platforms — land-based missiles and designated aircraft — are operationally handled by the Strategic Forces Command, and report to the Nuclear Command Authority chaired by the Prime Minister.

However, the over 100 nuclear warheads are not mated with missiles or bombs and remain in civilian custody of the Atomic Energy Department and the Defence Research and Development Organisation.

Ambitious plan

India has an ambitious plan to build a SSBN fleet, comprising five Arihant-class vessels.

Naval sources say the plan hinges on Arihant’s success. It has taken 30 years to build it, at a high cost. “It was initially estimated to cost about ₹3000 crore for three boats — now the cost of Arihant itself seems to have gone over ₹14,000 crore,” a former high-ranking naval officer said.


The Eastern Naval Command plans to operate its nuclear sub fleet from an independent Naval Operational Alternative Base (NOAB) being constructed on 5,000 acres of land at Rambilli, for direct access to the sea. The base is located about 50 km from Visakhapatnam, and jetties are under construction.
INS Arihant left crippled after ‘accident’ 10 months ago
 

Paro

Bloom17
Dec 2, 2017
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I refuse to believe until they reveal at least one source. All of them got their news from the Hindu which in turn just mentioned “source “ and “former high-ranking naval officer”. This article weighs same as a **** speculation. These days every Tom dick and Harry are the sources when in comes to defense related topics. And even reputed jurnos got their stories wrong when it’s related to N subs of IN. Remember the S3 saga..
 
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lcafanboy

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Dec 22, 2017
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Nuclear Submarine INS Arihant Back in Action After Damage in Propulsion Chamber


New Delhi, Jan 8: India’s first indigenous nuclear submarine INS Arihant is back in action after being crippled for the last several months following a major damage which resulted in water entering the warship’s propulsion chamber. Almost 10 months ago a possible human error led to water entering Ship Submersible Ballistic Nuclear (SSBN) INS Arihant’s propulsion chamber rendering it unfit to sail.

Navy officials say the accident took place when INS Arihant was reportedly at Vishakhapatnam harbour. The damaged pipes and other instruments were replaced to make the warship operational again. The incident came to light just a few weeks after the Navy admitted nuclear submarine INS Chakra’s SONAR, known as the eyes and ears of a submarine in the water, was damaged in early October 2016 after either hit something or while docking at Vishakhapatnam. INS Chakra, a nuclear-powered Akula II class Nerpa submarine, was taken on a 10-year lease from Russia in 2012.

INS Arihant was commissioned into Indian Navy in August 2016 and completed India’s nuclear triad. The submarine will carry either 12 nuclear-tipped 750-km range K-15 Sagarika short range Sea Launched Ballistic Missiles (SLBMs) or four 3500-km range K4 SLBMs, which can be fired from four vertical launch tubes. The 112-metre log, 6,000-tonne INS Arihant is powered by a 83 MW pressurised light water reactor and has been built under the Advanced Technology Vessel (ATV) project at the Ship Building Centre in Visakhapatnam, one of the key bases of Indian Navy.

India joined a select group of five nations – USA, Russia, China, France and the UK – to build and operate a SSBN with the commissioning of INS Arihant. The second SSBN under ATV project, INS Aridhaman, is undergoing sea trials. The submarine will be commissioned into the Navy only by 2019 and its nuclear reactor will go critical only after sea trials.

India is already building two more SSBNs under the ATV project which have more advanced features and weapons systems giving the Navy blue water capabilities.
http://www.india.com/news/india/ind...fering-damages-in-propulsion-chamber-2833345/

This is contrasting news............

Looks Like all news are planted purposely to confuse enemies...........:)
 

Shashank

Well-Known member
Dec 4, 2017
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Ban galore
Nuclear Submarine INS Arihant Back in Action After Damage in Propulsion Chamber

India’s first indigenous nuclear submarine INS Arihant is back in action after being crippled for the last several months following a major damage which resulted in water entering the warship’s propulsion chamber. Almost 10 months ago a possible human error led to water entering Ship Submersible Ballistic Nuclear (SSBN) INS Arihant’s propulsion chamber rendering it unfit to sail.

Navy officials say the accident took place when INS Arihant was reportedly at Vishakhapatnam harbour. The damaged pipes and other instruments were replaced to make the warship operational again. The incident came to light just a few weeks after the Navy admitted nuclear submarine INS Chakra’s SONAR, known as the eyes and ears of a submarine in the water, was damaged in early October 2016 after either hit something or while docking at Vishakhapatnam. INS Chakra, a nuclear-powered Akula II class Nerpa submarine, was taken on a 10-year lease from Russia in 2012.

INS Arihant was commissioned into Indian Navy in August 2016 and completed India’s nuclear triad. The submarine will carry either 12 nuclear-tipped 750-km range K-15 Sagarika short range Sea Launched Ballistic Missiles (SLBMs) or four 3500-km range K4 SLBMs, which can be fired from four vertical launch tubes. The 112-metre log, 6,000-tonne INS Arihant is powered by a 83 MW pressurised light water reactor and has been built under the Advanced Technology Vessel (ATV) project at the Ship Building Centre in Visakhapatnam, one of the key bases of Indian Navy.
 
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Paro

Bloom17
Dec 2, 2017
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United States
Will post something Tomo where the whole reaching IOR, wakes and hydrophone picking up submarines and ships is tracked accurately with latest technological platforms. My contention is of course different.. but I do see credible threat to whole of IN and undermining our triad by a big margin.

India being a reactive government can't stop this with present stance.. and with possible new technological programs, it has to be addressed or with building blocks that we already have, a message has to be sent in clear terms..

It would be interesting to see what techniques are used to counter such nets of detections. My proposition being just one of them.
Have you posted it elsewhere? would you guide me to it?