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INS Arihant : Updates & Discussion

soundHound

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Wow, I mush say out of almost all defense project nation has taken so far, this particular one was most silent one, full of secrec. Is this operational deployment, I mean with ballistic ?
 

ranadd

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Wait for people to ask for evidence now... :crazy:

Anyway, since seeing the first block being joined years back, knew this is going to be one hell of a deterrent.:cheers:
 

SR-91

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Good...since we knew that, it's not all that exciting....

News about Aridhaman will be exciting. Love to know what's the difference between Arihant and Aridhaman.
 

ranadd

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Good...since we knew that, it's not all that exciting....

News about Aridhaman will be exciting. Love to know what's the difference between Arihant and Aridhaman.
From my meager information, Arihant is a Design validator or Technology Demonstrator. The sub is designed to validate the future submarines. Items like Project Management, Vendor Quality, Technologies used, Reactor safety, Missile tech etc are the few key ones.

Project Management is one thing that is less glamorous and lesser known. But Countries that actually develop military hardware will tell you, is THE key factor. Not sure if there are enough information about the sub assembly or transportation, but it was a huge task itself. Yes, it was constructed in modules at one place and moved to another. No one knew they were subs. And yeas, our neighbors can say India doesn't develop military hardware or we are slow in development... But truth is bit far from it.
 

Hindustani78

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The indigenously built nuclear-powered ballistic submarine INS Arihant off Visakhapatnam. File photo


http://www.thehindu.com/news/national/now-india-has-a-nuclear-triad/article9231307.ece

INS Arihant was commissioned by Navy Chief Admiral Lanba in August.
India has quietly completed its nuclear triad by inducting the indigenously built strategic nuclear submarine INS Arihant into service.

INS Arihant was formally commissioned by Navy Chief Admiral Sunil Lanba in August, defence sources confirmed to The Hindu on Monday. The issue was reported earlier in the day by TV channel NewsX.

To maintain secrecy, it is not being referred to as INS Arihant, sources added. INS which stands for ‘Indian Naval Ship’ is affixed to a ship only after it is inducted into service.

No-first-use doctrine
Arihant is capable of carrying nuclear tipped ballistic missiles, the class referred to as Ship Submersible Ballistic Nuclear (SSBN). SSBNs are designed to prowl the deep ocean waters carrying nuclear weapons and provide a nation with an assured second strike capability — the capability to strike back after being hit by nuclear weapons first.

Second strike capability is particularly important for India as it had committed to a ‘No-First-Use’ policy as part of its nuclear doctrine.

The vessel weighing 6000 tonnes is powered by a 83 MW pressurised light water nuclear reactor. The project to build a strategic vessel began as the Advanced Technology Vessel (ATV) project in the 1980s and the vessel was launched in 2009 by Prime Minister Manmohan Singh. Since then it was put to extensive sea trials and the reactor on board went critical in 2013.

It will be armed with the K-15 Sagarika missiles with a range of 750 km and eventually with the much longer range K-4 missiles being developed by the Defence Research and Development Organisation.

With this India joins the select group of countries which have a nuclear triad, i.e. capable of delivering nuclear weapons by aircraft, ballistic missiles and submarine launched missiles.

Both the Defence Ministry and the Navy declined to comment as the issue is out of their purview being a strategic asset.
 

[Bregs]

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Sub-par power yield leaves Arihant drifting in deep sea of delay

Published October 19, 2016 SOURCE: ENS


The country’s first indigenously developed nuclear submarine Arihant will soon be unveiled after years of secrecy. Prime Minister Narendra Modi is expected to visit Visakhapatnam for its formal commissioning and dedicate it to the nation at the Eastern Naval Command, according to a top government official.

But before its operational deployment, its developers are struggling to fix a critical issue in its pressurised water reactor, which has not been able to generate adequate power for the submarine’s functioning.

According to sources, the nuclear-powered submarine was inducted into the fleet a few days back, but its commissioning is yet to happen before it’s formally put on operational deployment in the deep sea.

Explaining further, an official said a warship requires a flag and pennant number before being commissioned into service, while induction is only its entry into the service.

“There will soon be an opportunity to talk about Arihant,” vice admiral G S Pabby said while indicating a formal announcement is to be made soon.

The 6,000-tonne Arihant is armed with nuclear-tipped ballistic missiles and will be the third leg of the ‘triad’ of land, air and sea-launched nuclear weapons envisaged by India’s nuclear doctrine of 1998. In 2013, the nuclear reactor of the submarine went ‘critical’ and from December 2014 onwards, the sea trials began, which included the test firing of K-series of missiles.

But since then, its 83 MW pressurised light-water reactor at its core, developed with extensive assistance from the Russia, has been facing multiple technical glitches.

A top official said its pressurised water reactor has not been synchronised with other vital systems. And because of it, the reactor has not been able to generate the ‘required’ power to operate the submarine.

“Synchronization of its pressurised water reactor to other key systems was a tricky job. Its configuration to generate 83 MW nuclear energy has not been successfully done, resulting in repeated delays in its operational deployment,” said a top defence source.

A joint team of Russian and Indian scientists has been actively working round-the-clock to fix the critical issue.

Arihant, powered by an 83-MW pressurised water reactor with enriched uranium fuel, was launched symbolically into water on July 26, 2009, by then PM Manmohan Singh’s wife Gursharan Kaur. And since then, it is missing its deadline, as the Navy wanted the submarine to be ready for deterrent patrol by 2014, which means it should be equipped with nuclear weapons. But, sources also claimed that deterrent patrol will be a further step and will take some months to actually deploy.

Some months back, Arihant was integrated with the K-15 submarine-launched ballistic missile, which has a range of 750-km and the K-4 that has aa range of up to 3,500-km.

http://www.newindianexpress.com/nat...ter-maintaining-years-of-secrecy-1529359.html
 

Han Patriot

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Sub-par power yield leaves Arihant drifting in deep sea of delay



But since then, its 83 MW pressurised light-water reactor at its core, developed with extensive assistance from the Russia, has been facing multiple technical glitches.



A joint team of Russian and Indian scientists has been actively working round-the-clock to fix the critical issue.
Hmmm, indigenous?
 

Safriz

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Arihant to have no MIRV capability will be a very weak second strike capability. The only SSBN in the world not to carry Missiles with multiple warheads.
 

Safriz

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Jericho III is Israeli MIRV with 1.5 meter diameter.
Israel is helping India on MIRV bus technology.
Jericoh series isn't primarily designed for MIRV as putting more than one Warheads on one missile is strategically dangerous for a small country like Israel which has no strategic depth.
 

ashok321

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Jericoh series isn't primarily designed for MIRV as putting more than one Warheads on one missile is strategically dangerous for a small country like Israel which has no strategic depth.
The gist being that, it is technically possible to fit MIRV in a missile with less than 2 meter diameter. Something that Indians can do too.
 

nik141993

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The gist being that, it is technically possible to fit MIRV in a missile with less than 2 meter diameter. Something that Indians can do too.
all depends upon miniaturisation of warhead & high ISP based fuel & composite motors specially in last stage in which India is 3 decade ahead of Pakistan at minimum & comparable to P 5 members. Pakistani can fool about superiority of there 60s era technology only to there defence expert's & gulibal awaam
 

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