Indian nuclear submarines

dove

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Kunal - thanks for the explanation.

Is passive radar detection enough to give accurate target co-ordinates so that the SUB can fire an AAM which can lock on the ASW aircraft ? If so, may be one can make a 'smart cannister' which can be quietly jettisoned by the sub, the cannister will wait for some time to allow the sub to move away and then release the missile ? Too james bondish ??
 

Kunal Biswas

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Is passive radar detection enough to give accurate target co-ordinates so that the SUB can fire an AAM which can lock on the ASW aircraft ? If so, may be one can make a 'smart cannister' which can be quietly jettisoned by the sub, the cannister will wait for some time to allow the sub to move away and then release the missile ? Too james bondish ??
Its difficult to make out the effectiveness of the Radar detection system while traveling under water, For Example: How good is the system while traveling at depth of 50m and traveling at 150m and what ranges it can detect Air-crafts at what bands, further how it makes difference from friend and foe ?

Therefore my conclusion is that the System can detect air-craft not more than 5-10kms around it in, At Shallow depths..
And the launch of missiles is a act of evasive maneuvers against a Airborne thread, In this maneuver the Aircraft forced to Disengage Submarine and itself goes for evasive maneuver to deflect missiles by flares ( Python class missiles are heat-seeking ) In the mean time the Submarine have enough time to disappear in deep sea..

Besides my theory, your Idea may be true or may be just an Good Idea, their is not much we know abt these Radar detecting system in Submarine, further if we have such detail then what are the similarity or difference from Western types to eastern types?
 

keshtopatel

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further how it makes difference from friend and foe ?
To stop fratricide or freindly fire, the IFF system is used, which uses encrypted signals to identify friend or foe.
 

Anshu Attri

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:: Bharat-Rakshak.com - Indian Military News Headlines ::


'Liability has been taken by the operator'

Interview with Srikumar Banerjee, AEC Chairman.




Srikumar Banerjee: "This whole Bill is between the victims and the operators."
THE Department of Atomic Energy (DAE) has several ambitious plans – to build more Light Water Reactors (LWRs) fuelled by enriched uranium for India's nuclear-powered submarines, to construct a special material enrichment facility in Chitradurga district in Karnataka to step up uranium enrichment capability, and to build 10 indigenous Pressurised Heavy Water reactors (PHWRs) of 700 MWe each that will use natural uranium as fuel.

In the background of the Lok Sabha passing the Civil Liability for Nuclear Damage Bill, 2010, on August 25 and the Rajya Sabha approving it on August 30, and the first anniversary of India launching its first nuclear-powered submarine, called Arihant, at Visakhapatnam, Atomic Energy Commission (AEC) Chairman Srikumar Banerjee spoke to Frontline in a 70-minute interview in Chennai on September 2. Banerjee, who is also Secretary, DAE, not only spoke about these plans but argued that the DAE did not take sides during the nationwide debate on the Bill.

"We [the DAE] are not taking sides. We just want to make a victim-friendly [piece of ] legislation and make the operator liable," he said in answer to a question on why officials of the DAE/Nuclear Power Corporation of India Limited seemed to be batting for American suppliers of nuclear power reactors to India. He asserted that the legislation was "India-centric" and that "it cannot be based on what you are calling pressures from other countries". In the case of a nuclear incident, "the victims must get prompt and no-fault compensation", he said.

Banerjee revealed that there was not only "total capacity enhancement" in India's existing uranium enrichment plant at Ratnahalli, near Mysore, but "significant improvement in our technology". Besides, when the uranium enrichment plant in Chitradurga is ready, "it should be able to feed enough enriched uranium to large-sized 1,000 MWe Light Water Reactors." Excerpts:

It has been more than a year since India's nuclear-powered submarine, Arihant, was launched. What is the progress on that? Has the LWR on board the submarine been started up?

Our nuclear steam supply system is ready 100 per cent. From our [DAE] side, everything is ready. We are only waiting for other systems to become operational so that we can start the commissioning activity of the reactor. The rest of the submarine parts have to be ready before we can start the reactor. I do not know when the harbour trials will be done.


The Navy will need three or four nuclear-powered submarines for this arm to be a viable force. Arihant will not do. Will you build more LWRs for these nuclear-powered submarines?

We are already doing that. I will not be able to tell you the number, but it is a fact that we are in that game. The next nuclear steam-generating plants are getting ready for future applications.


Where will the enriched uranium for these boats come from? Only the Rare Materials Plant at Ratnahalli, near Mysore, produces enriched uranium. Will the proposed special material enrichment facility in Chitradurga district be helpful?

Chitradurga will come a little later, not immediately. Our Ratnahalli plant capacity has been enhanced. But more than that, there is significant improvement in our technology. Usually, a term called separating work units [SWUs] defines the technology level that we have achieved in this, and I can assure you that there has been considerable improvement in SWUs of our next-generation caskets of centrifuges. The separating capacity of our centrifuges has improved. So, total capacity enhancement has been done at Ratnahalli. We are confident of supplying the entire fuel for the set of"¦. This has given us the confidence to build the [enrichment] plant. You cannot say anymore that India does not have enrichment technology. India has its own technology and can produce [enriched uranium]. We have not started doing it for large-scale commercial nuclear power stations, which require a much larger quantity of enriched uranium. We will be able to do that once we go to Chitradurga.


How big will the Chitradurga facility be in terms of capacity?

I will not be able to tell you now. The scheme is not yet ready. It should be able to feed enough enriched uranium to large-sized, 1,000 MWe nuclear power plants.


LWRs of 1,000 MWe capacity?

Yes. As you add more and more caskets, the production capacity will gradually increase. Our plan is to increase the production capacity to eventually meet the entire requirement of the country.


There is an impression that the Federation of Indian Chambers of Commerce and Industry and the Confederation of Indian Industry are scaring people by saying that U.S. companies will not sell India nuclear reactors and that Indian companies will not provide components and equipment for them if clause 17(b) of the Civil Liability for the Nuclear Damage Bill, 2010, continues to remain in the legislation. (Clause 17 says: "The operator of the nuclear installation, after paying the compensation for nuclear damage in accordance with Section 6, shall have a right of recourse where – (a) such right is expressly provided for in a contract in writing; (b) the nuclear incident has resulted as a consequence of an act of supplier or his employee, which includes supply of equipment or material with patent or latent defects or substandard services; (c) the nuclear incident has resulted from the act of commission or omission of an individual done with the intent to cause nuclear damage.") Top officials of NPCIL went on record saying that clause 17(b) would deter suppliers from engaging in nuclear commerce with India. Why are the DAE/NPCIL batting for U.S. suppliers?

No. Before discussing the right of recourse of the operator, let me first tell you about the basic purpose behind the introduction of the Nuclear Liability Bill. In the very unlikely event of a nuclear incident, we do not want the victims to go through an extended process of litigation to claim compensation. The victims must get prompt and no-fault compensation. Prompt in terms of time and no-fault meaning that you don't have to prove the fault of the operator or anyone to get the compensation. The Bill identifies very clearly who takes the liability. It is very clear that the liability has been taken by the operator.

There are many undue apprehensions that all this is being done for the private sector's entry into the Indian nuclear business. The private participation even today is very high. If you look at the nuclear industry in India, all the major manufacturers of equipment and various components are in the private sector.

However, for this Bill, there is a specific requirement that nuclear power plant operators will be either the government itself or a government company, as defined in the Atomic Energy Act. So this apprehension of several people that this is only a precursor to allowing the private sector to come in as operators of nuclear power plants is totally dispelled.

The second point is the suppliers' liability. What is the meaning of the phrase "the right of recourse" of the operator? It means the operator first takes his own liability to compensate the victims and after the compensation is paid, he has the right of recourse to sue the suppliers, provided he has definite proof of faulty supply [in the equipment] which has been the primary cause of the incident. The Bill establishes prompt compensation from the operator to the victim.

This whole Bill is between the victims and the operators. It creates a new legal authority called the Claims Commission or the Claims Commissioner. That new legal authority will determine, depending on the scale of the event, how much compensation should be given. As far as this Bill is concerned, it establishes a relationship between the victim and the operator through this new legal authority. It also mentions that Indian laws, whatever is available today, are in no way affected by the introduction of this new Act. The right of recourse in this case is available to the operator through other Acts [also].


Tort law?

Tort is there. Defect liability is there"¦. Only in this Act it is mentioned that they have the right of recourse. We [the DAE] are not taking any sides. We just want to make a victim-friendly piece of legislation and make the operator liable. One of the points is that you are inculcating safety-consciousness in the operator because you are introducing a heavy liability in case any incident occurs which affects people. We sincerely believe that no situation will arise where it will be necessary to invoke this law.


There was an attempt in June to delete clause 17(b).

It was not an attempt.


There was a DAE internal note [to that effect]. The perception is that the DAE would not have done that on its own, and there must have been pressure on it from the Prime Minister's Office to delete the clause.

No. Not that way. Let me explain it. There are two contradictory requirements. On the one side, you have to look at the international practice, what are the laws available in several countries. In most of these laws, there is no mention of the right of recourse."¦ In some way, there is a mention and statements are similar to what is indicated in our clauses 17(a) and 17(c).

On the other side, when you are getting equipment and components from several suppliers, in case a fault in any of them leads to a nuclear accident, there should be some suppliers' responsibility. This is the contradiction.

That is why this point was discussed in detail during several discussions of the Parliamentary Standing Committee. On the basis of its recommendations and a broad political consensus, the present language in clause 17 was evolved.


Was there no pressure at all from American suppliers to delete clause 17(b)?

It is a piece of legislation made in India. So we have to ensure that it is India-centric. That is what this legislation is all about. It cannot be based on something what you are calling pressures from other countries. In any case, there will be many things published in the press, many viewpoints being expressed. But you cannot say that an Indian lobby is being created by some pressure from other countries.


Are you happy or apprehensive about the entire clause 17?

It is a matter of detail. No new feature regarding the right of recourse has been added in this Nuclear Liability Bill. This right of recourse, in any case, is there [in other laws], whether you write it here or not. So it is nothing new. It is true it is causing some disturbance in the minds of the suppliers. We will explain to all of them the basic conditions of these, and I hope I will be able to convince them that this will not cause any difficulty in continuing to have nuclear commerce within India and in the international sphere.


You are going to import 36 to 40 reactors.

It should not be the view that we have today taken the path of large-scale nuclear reactor imports and that our indigenous programme is getting sidelined.


Former Atomic Energy Regulatory Board Chairman A. Gopalakrishnan fears that.

Let me explain. We are actually strengthening the indigenous programme. The government has clearly announced the construction of four indigenous Pressurised Heavy Water Reactors of 700 MWe capacity each and we are working towards getting the clearance for six more reactors – a total of 10 reactors of 700 MWe each. This was not originally planned. This means we are adding 7,000 MWe of capacity with indigenous effort.

In the overall requirement of total electricity generation, we need to go much faster. This import of reactors is only as an additionality. It is only for an interim period. We are working towards establishing five energy parks, each capable of generating 10,000 MWe of nuclear electricity. So our ambition is that by 2020, something like 35,000 MWe of nuclear power will come up. This is the number we are targeting. To what extent we will succeed depends on many factors.

The primary factor will be getting suitable land, the public acceptance in these areas, and so on. Then, when you are talking of importing reactors, the suitable agreement with the countries who will be supplying the reactors to these sites will be there, and whether we will get these reactors to provide power at a competitive tariff. When we say competitive tariff, if you were to have a thermal power station at the same location, its tariff and the nuclear power station's tariff should be competitive.

When all these conditions are fulfilled, we will be hopeful that we will be able to make fast progress on nuclear power generation so that the share of nuclear power will rise from the present 3 per cent to 25 per cent by 2035 in the overall installed capacity.


There are problems in the acquisition of land at Jaitapur in Maharashtra and Haripur in West Bengal to build the French and Russian reactors respectively. In Haripur, there is strong opposition to land acquisition.

You should not ask me political questions.


It is not a political question.

The important point is you have to convince the local people that when atomic energy comes to any part of India, there will be prosperity in that locality. It is not just generation of power. Wherever we go, there is no question of degrading the environment. Because of this kind of activity, there is an introduction of all-round development in the area. There is an assured source of electricity coming from a small location – generation of 10,000 MWe which will not only enrich that particular region and the whole State but the country through the national grid.

For a 10,000 MWe nuclear power station, you will require a few hundred tonnes of fuel a year. But for a coal-fired thermal power station of the same size, you need a shipload of coal every day. Besides, the first one is totally emission-free. There is no carbon dioxide emission. Even with clean, imported coal, you cannot avoid carbon dioxide emission. Today, we [India] contribute only 5 per cent of the total carbon dioxide generation in the world. If there is a tenfold increase in the total electricity generation [in India, using only coal], our contribution will be very significant. It may exceed 40 per cent. That is why we have to increase our nuclear power stations' component in the total mix of electricity generation.

I am just coming from the Prototype Fast Breeder Reactor [PFBR] site at Kalpakkam. We will consider it a major technological feat for the country to develop and construct this fast breeder reactor. It will be ready by 2012 and it will pave the way for our building more fast reactors.

As we grow with the fast reactors, we will have the opportunity of converting thorium into uranium-233 in the fast reactors, which will lead to our third stage of building thorium-based reactors. Again, our vision is that with this, we will be able to provide energy security to our country. So I can reiterate that we are not deviating at all from our well-defined path of a three-stage nuclear power generation programme.


In 2004, former AEC Chairman Anil Kakodkar told me that the ground-breaking to build the Advanced Heavy Water Reactor (AHWR), which will use thorium as fuel, would take place by the end of that year. It is close to the last quarter of 2010 now and the excavation for the AHWR is yet to start. How long will the peer reviews of this reactor design go on? Has the AHWR become a non-starter?

Not at all. Please understand that the AHWR is only for proving some enabling technologies for the development of thorium-based reactors. But the AHWR has its own role. It started with a big ambition. Its design continues to be the same. We are still trying to push the AHWR programme as fast as possible if we can do the site selection within this Plan. It is a reactor which will use thorium. Two-thirds of the energy from this reactor will come from thorium in equilibrium condition. The second important point is that it will have many passive safety features.


It will have no moving parts.

No moving parts. So in the same reactor, we are actually trying to prove many points. The AHWR is unique. It is novel. It is innovative. There is no doubt about these things. One should not think that just because the AHWR construction has not yet started, we are pushing back the third stage of our nuclear power generation programme. The third phase will commence only when we have gathered a sufficient inventory of uranium-233. This will depend on how many fast reactors we have already built. Not one but several fast reactors should be in operation. It has to go in a sequence. Then we would have collected our uranium-233. It is a very important concept – the point of time in which you should introduce the AHWR. Just by early introduction of thorium, we are not going to gain much by way of overall sustainability of our nuclear power generation programme.


The new fourth reactor at Kaiga (Kaiga-4) in Karnataka has been sitting idle for the past two years even though its construction is complete. A reactor at Narora in Uttar Pradesh is also sitting idle after it underwent en masse coolant channel replacement. Both reactors have not been started up for want of domestic natural uranium. Has the outlook improved for the domestic natural uranium supply? There was a strike in the uranium processing mill at Jaduguda in Jharkhand.

The Narora unit criticality has already been done. So it is not an issue. Domestic uranium availability has improved considerably. We will have all reactors operational very soon. The capacity factors of those reactors that use imported natural uranium fuel have reached 90 per cent. The capacity of those reactors fed by Indian uranium has also improved. The fuel shortage in India's nuclear power programme is a thing of the past.
 

neo29

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^^^^^

Above article clearly states that India is making more than 3 reactors for more Nuke Subs to come. Good going.
 

nitesh

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No neo I don't think this is going to be stopped there, this is just the begining
 

nitesh

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http://www.thehindu.com/news/international/article814932.ece


The Russian expert suggested that the two countries could diversify their defence ties into nuclear submarine technologies despite continuing international restrictions against India.
..............................

In fact, Russia is already helping India acquire nuclear submarine capability. Next March, Russia will hand over an Akula-class attack submarine, Nerpa, to India on a 10-year lease.

Its design has been largely incorporated in India's first indigenously built nuclear submarine, INS Arihant, launched last year.
 

KaFka

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Do you guys have any update news on DRDO's development of AIP system.
 

RPK

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Why India needs to opt in for Nuclear Submarines? | Frontier India - News, Analysis, Opinion
By Cmde (retd) Ranjit B. Rai | November 10th, 2010 | Category: Indian Navy News, Opinions and Articles | No Comments »

India's nuclear legend Dr Homi Nusserwanji Sethna (1924-2010) passed away on 5th September in Mumbai aged 86. In May 1974 Dr Sethna as Chairman of India's Atomic Commission(AEC) which was set up in then Bombay, had ordered preparations for India's plutonium Pu-239 based, peaceful nuclear explosion(PNE) at Pokhran and was camping in New Delhi. Dr Raja Ramanna Director BARC was on site immersing the cores in the deep tunnels constructed by Indian Army engineers and with some help from an NRI company, and connecting the detonating cables with DRDO help. The bomb's architect Dr Sethna reportedly briefed Prime Minister Mrs Indira Gandhi on the preparations, "I am pushing in the device (bomb) tomorrow and after that, do not say remove it because I cannot. You cannot tell me to stop."

"Go ahead", Indira replied, " Are you frightened ?," she asked. "I am not. I am only telling you there is no going back now. That is all," Homi answered in his no nonsense manner, that he was known for..

Homi Sethna a nuclear legend of India, was educated as a chemical engineer in Ann Arbour Michigan and took over in times when Dr Homi Bhabha and Dr Vikram Sarabhai had passed away and left a void. Earlier in his career, he was responsible for setting up of the thorium extraction plant at Alwaye in Kerala for separation of rare earth from Monazite sands, and came in to contact with naval officers in Cochin, including then Commodore SG Karmarkar Commodore in Charge Cochin (COMCHIN). Later Sethna set up the plant for the production of nuclear grade uranium metal at Trombay, and also set up the Plutonium Reprocessing Plant(PRP) there itself in 1959. India Strategic is proud to recount Dr Sethna's support to the Indian Navy and what is now Indian Navy's ambitions to build and operate nuclear submarines. The story of Indian Navy's quest for nuclear submarines needs recounting.

NUCLEAR SUBMARINES ARE INESCAPABLE FOR NUCLEAR DETERRENCE

The Indian Navy has always looked ahead, and its ambitious horizons have always included plans to acquire, build and operate nuclear submarines. Sethna supported that, and it is essential to appreciate why India needs expensive home built nuclear submarines like the 6,500 ton INS Arihant (ATV) which is being readied for sea trials and deep diving trials at the Ship Building Center(SBC) at Vishakapatnam. The DRDO-Navy project is being directed by Director General ATV Vice Admiral DSP Verma, a former Chief of Material of the Indian Navy, from the offices of Akshanka( means Hope) in New Delhi, under the control of a board in PMO with the Prime Minister as its head. Another large classified establishment under Akshanka, the Directorate of Marine Engineering Technology (DMET) at Hyderabad has pioneered and tested all engineering equipment inducted from Indian industry for the INS Arihant, and continues to seek suppliers for sea going machinery that goes in to a submarine but its activities are classified, despite all suppliers having all the details. It's a dichotomy.

A large 8,500 ton nuclear Akula class submarine of Project 971, the Nerpa is also being taken on lease from Russia for training and the Indian crew is likely to commission the boat later this year, if all is equal. The boat had suffered a fire and explosion and the damage has been repaired at Vladivostok. The nuclear submarines are planned to augment the Navy's long grey line of 32 warships and 6 diesel propelled Scorpene submarines including two aircraft carriers that are under construction, and on order in India and abroad. A nuclear boat with its organic under water launched nuclear missiles, is stealth at its best and is the most proven form of deterrence against another nuclear armed adversary. India has two nuclear neighbors.

The world's five nuclear weapon NPT states USA, Russia, France, UK and China, continue to maintain and design nuclear submarines capable of launching nuclear tipped missiles besides, air and land launched nuclear missiles. UK and France have admittedly reduced their land and air launched nuclear assets, but they are on course to build newer nuclear submarines despite the burden on their defence budgets, that this class of nuclear boats impose. A nuclear submarine costs around $2 bill a piece, is expensive to maintain, but it is an essential and vital strategic asset of a nation.

India has yet to achieve a credible 'Triad' deterrence capability to protect its national interests which includes its growing economy slated to grow faster in the coming decades. The Chinese PLA Navy has been pursuing a vigorous programme to build up its Han, Xia(093), 094 and 095 class of nuclear submarines which can launch short range missiles from SSNs, and long range 5000km ICBMs like the JL-1 derived from the DF-31 from SSBMs, and if India is to join the big league which is now on the cards, then it has little option but to have a line of SSN and SSBM nuclear submarines to ensure deterrence, akin to insurance against nuclear states. One however hopes, the use of nuclear weapons is never resorted to.

Politicians, the public at large and even business leaders in India have to appreciate that if you do not have security, then you will have no governance or business in a growing economy. National security is a national pre-requisite, and this is what late Dr HN Sethna who when he was working as Director of Bhabha Atomic Research Center Bombay in the 1960s producing weapon grade plutonium(P-239) from waste from nuclear reactors, always emphasized in conversations with naval officers in Bombay. His education in USA had fired his imagination on security and nuclear issues. He often visited the USO club's golf course which was close to the Tata Institute of Fundamental Research(TIFR) in Colaba. TIFR was constructed on naval land adjacent to Navy Nagar, and a number of 'hush hush research projects' were conducted there and a few technical naval officers took short courses at TIFR.

Rear Admiral SG Karmarkar, the first Indian officer who had commanded British officers on INS Kistna had by then become Flag Officer Bombay(1963-65). Dr Sethna was known to him from his Cochin days and hosted him at Northbrooke House next to the Atomic Energy Commission Office in the Old Yacht Club premises at Apollo Bunder near the Taj Mahal Hotel. Sethna took the Admiral to visits to Tarapur Nuclear Power project and BARC, and this writer as Flag Lt accompanied the Admiral on one visit to Tarapur when a reactor was being commissioned. Dr Sethna who had served under Dr Homi Bhabha is acknowledged is as being the prime architect of India's nuclear weapons programme with Dr Raja Ramanna. They both successfully demonstrated capability to build indegenious nuclear bombs in May 1974 and 'Smiling Buddha' took under his stewardship when he was the Chairman of the Atomic Energy Commission, but he was a modest person and never hogged the lime light and diligently pursued his tasks and interests.

NUCLEAR PROPULSION AND WARFARE

Many naval officers recall Sethna tell young naval officers in Mumbai to dream of nuclear propulsion. He did this in times when officially Indian Armed Forces were not taught offensive nuclear doctrines. Nuclear and nuclear warfare in India's context was not in India's toxilogy or lexicon as a subject in Indian staff colleges, but it is less known that all major Indian Naval ships have always been fitted to fight through and defend themselves against a nuclear explosion. All major naval ships have 'citadel capability' to button up the ship and re-circulate internal air and generate oxygen like a submarine does. Every major warship can pre- wet the whole ship structure to cleanse nuclear fallout. A warship's raison d'etre is "To Float, To Move, To Fight' even thorough a nuclear explosion at sea.

Every IN navigator is taught to steer the ship away from the centre of a nuclear bomb explosion at sea. The Fleet regularly exercises nuclear explosion drill and ships are required to calculate a moving geographic position called 'Roaming Romeo'(the centre of explosion and fallout) depending on the direction of the wind, and steer a safe course to evade the nuclear fallout at high speed, with the ship's company sealed breathing circulated and re-oxidised air.

Nuclear warfare drill has been taught to every naval officer since the 50s, and officials from Bharat Atomic Energy Centre(BARC) at Mumbai where India's plutonium nuclear bombs(cores) are currently stored, regularly gave lectures on board ships on how to check radiation levels, apply radiation cleansing techniques and calibrate the naval ships fixed and portable electromagnetic Rontogen X-radiation meters. Nuclear bomb effects and methods of delivery is bread and butter to the youngest of Indian naval officer at sea, as it forms a part of the inspection routine by the Fleet Commander. It is a legacy of the British ships Indian Navy acquired after partition.

It is to Dr Sethna's credit that he as AEC Chairman he opened the secret portals of India's nuclear establishment BARC in 1976 which was under Dr Raja Ramanna then and accepted a team of four naval officers led by then Capts PN Agarwala and Bharat Bhusan both very bright engineer officers trained at the Royal Naval Engineering College at Manaden Plymouth, to form a Diesel Propulsion Research Team(DPRT) at BARC. DPRT was a subterfuge for designing a nuclear propulsion plant. Cdrs Gurmit Singh and Cdr BK Subbarao were also in the team, and in later years Subbarao designed a submarine nuclear power plant but crossed swords with Dr Raja Ramanna. Bhusan later headed the Advanced Technology Vessel (ATV) nuclear project and subsequently many naval officers were trained in nuclear engineering at BARC and transferred to the the DRDO-Navy classified ATV project, which fructified in the launching of INS Arihant by PM's wife Mrs Gursharan Kaur on 22nd August,2009 at Vishakapatnam.

INS Arihant a 7,000 ton medium sized nuclear propulsion technology demonstrator submarine and is being readied to go to sea and will be fitted with the 700km Sagarika K-15 solid fuel nuclear tipped missile, and it will possess India's first underwater launched deterrent, if all is equal. India already has air and land launched nuclear arsenals, and two of Navy's four off shore patrol vessels (OPVs) INS Subhadra and Suvarna can launch one 350km liquid fuelled nuclear tipped Dhanush missile each. These launch platforms operate on surface and can be located from visual and radar observations and from satellites and are vulnerable.

ADMIRAL SERGIE GORSHKOV SUPPORTED LEASE OF INS CHAKRA

It needs recall that at a nuclear session at India International Center three years ago, when India's nuclear deal was being pursued with USA, the speakers included India's doyen nuclear analyst K Subrahmanyam, Raja Mohan of the Indian Express and others. Former PM I K Gujral shared an anecdote which holds relevance for the Indian Navy's plans and ambitions to possess nuclear submarines with under water launched long range missiles. IK Gujral unveiled how in 1979 when he was Ambassador in Russia and C Subramaniam and K Subrahmanyam were the Defence Minister and Defence Secretary (Production) respectively in MOD, he was tasked to meet Admiral Sergei Gorshkov and seek help and guidance on India's quest for nuclear submarines, which were prompted by the Indian Navy, and supported by Dr Raja Ramanna. Admiral of the Fleet Sergei Gorshkov known to be a supporter of the Indian Navy and officially acknowledged as the 'Benefactor of the modern Indian Navy' was one of the finest naval minds of the last century. When Shri Gujral met him he made him look at the chart/map of the Indian Ocean and went on to explain to Gujral how India was hemmed in by the Straits on both sides and said China has nuclear submarines and so India must also have nuclear submarines. That was the time when relations between Russia and China had soured. That led to the birth of the ATV and later the lease of INS Chakra.

From 1983 under the guidance of late Dr Raja Ramanna who worked under Dr HN Sethna , the ATV project took off and a former roommate of Dr Raja Rammana, Vice Admiral M K Roy, when they were living together in digs in London was made the first DG. The rest is history, and INS Chakra was given by Russia on lease to the Indian Navy from 1987 to 1991 despite rumblings in the West, and the IN cut its teeth in nuclear submarine operations and handling with the full support of BARC which opened its portals and a large number of naval officers hold M(Tech) degrees in nuclear engineering from BARC. The nuclear reactor in INS Chakra was maintained by Russians on board and all activities kept secret, including those of the ATV even from other service chiefs, and senior officers of the Indian Navy.

It was only six years ago that then Defence Ministers of India Pranab Mukherjee and Sergei Ivanov of Russia, jointly acknowledged the ATV project in pubic in Moscow for the first time and wowed to complete it. India also secretly clinched the deal to take Akula nulcear submarines on lease on the lines of the INS Chakra, but with full control. Many feel Russia readily agreed, as the funding for rejuvenating the Akulas, Nerpa and Jaguar came through the advances for the 1000X 2 Kundankulam nuclear power projects, and they needed the business. A few thousand of crores has also been spent on INS Arihant which has Russian assistance and equipment makes it the next most expensive DRDO project along with the LCA. Possibly the most expensive.

NUCLEAR SUBMARINES AND DIESEL SUBMARINES A COMPARISION

A nuclear Submarine force is the right option for countries with large oceans to patrol and though this issue has never been debated in India, it must be stated that nuclear submarines are very expensive technological toys. The cost of buying or building nuclear submarines is approximately 50 % to 75% higher per unit than diesel- electric powered boats but has greater capabilities. Nuke boats cruise three times faster , have a greater sustained speed underwater, and an unlimited range. For this reason larger number of diesel units are required for the same duty. Higher speeds by diesel propelled boats for very short period deplete their underwater batteries in few hours, and without resorting to recharge they then become incapable and vulnerable to the point of helplessness. PNS Hangor under then Cdr Tasneem of Pakistan almost suffered this fate in 1971, after attacking INS Kuthar which Hangor's torpedoes missed, but sunk INS Khukri with the loss of 168 souls. However the Captain of Hangor made an ingenious get away by daring to navigate in shallow waters, to escape the Indian Navy ships and submarines that were deployed off Diu. Nuclear submarines cannot do that in shallow waters.

Diesel submarines are warships of position, whereas nuclear submarines are vehicles of maneuver. Diesel subs are suited for small shallow seas with straits to block like the Malacca Straits and the Baltic hence Singapore has opted for small submarines, but when rapid movements over long ocean distances are required, nuclear propulsion is the desired choice and India must afford it. A conventional boat needs to be in the vicinity of its target . A nuclear boat can be dispatched to intercept or can track and attack when ordered. The sinking of the Argentinean's cruiser General Belgrano in the Falklands war is the most recent demonstration of the capability when HMS Conqueror which was dispatched at full speed for 8000miles submerged all the way. Went and intercepted the Argentinean Navy's cruiser. No conventional submarines could have achieved this feat and bottled up the whole Argentinean fleet. Unlike the diesel electric boats, which have to surface to recharge batteries about 20 percent of their time at sea, the nuclear submarine does not have to come up and surface and then effectively broadcast its position with noisy engines for sonars to detect it. The motto of nuclear submarines is 'Run Deep, Run Silent, Run Long'.

The diesel–electric submarine can be a useful weapon provided it can get to the right place at the right time. Conversely a nuclear powered boat, which can stay submerged indefinitely run at high speeds indefinitely, has enormous flexibility. A nuclear powered boat running silent , fast and deep can be switched very quickly from, for example , a wartime role of barrier patrol against hostile submarine in a specific area to convoy escort ships across an ocean, or land saboteurs secretly.

In its frequent surfacing, the diesel- electric submarine is highly vulnerable to visual, acoustic and radar detection and thus open to attack by other submarines, aircraft and surface ships. The nuclear boat's reactor also produces much more electrical power than diesel electric submarines and makes its 'pear shaped hull' possible to operate at much higher speeds for its highly powered sonar detection systems , provide more oxygen re-generation and unlimited water supply. The mere threat of a nuclear powered submarine in an area inhibits an opponent and acts as a powerful deterrent. Very rigorous safety standards have to be followed by navies building and operating nuclear submarines and most have ensured nuclear accident free operations. The US Navy for example has used nuclear propulsion for more than 40 years and accumulated more than 3600 reactor years of operation.

CONCLUSION

The importance of nuclear propulsion and nuclear submarines needs publicity. Once the importance and inescapable need for nuclear submarines is accepted by India and the Indian Navy becomes confident and masters nuclear propulsion along the way, the nation's Navy should be encouraged to think of nuclear propulsion for all its major naval warships of the future especially aircraft carriers that the Indian Navy is planning for the second decade of the 21st century. This will be a tribute to Drs Homi Bhabha, Homi Sethna and Raja Ramanna who showed the way. The cost of fossil fuel is set to rise exponentially and India which is a net importer of hydro carbons has to plan for alternate fuels and savings. Navies are large consumers of oil. The Government has maintained overt secrecy over all the equipment fitted in INS Arihant and kept a veil over the Indian designed and Indian built small nuclear reactor in the boat, which was a joint effort by BARC and Indian industry. Prime Minister Dr Manmohan Singh admitted that Indian industry has largely contributed to the building of INS Arihant and names of companies like Larsen& Toubro Ltd, Walchandnagar Industries Ltd, Bharat Heavy Elecriclas Ltd, Bharat Electronics Ltd, Tata Group and pump makers like Khosla and Kirloskar Pumps Ltd and some small suppliers and fabricators are known, but not their deeds. These need to be made public as it is reported two more larger Arihant class with modifications to take additional missiles is on the cards.

Note by Author: The writer Cmde (Retd) Ranjit B Rai had opportunity whilst at RN Staff College Greenwich London in 1974 to witness the operation and the fuel change procedure of Royal Navy's mini training reactor called "Jason", while undertaking a thesis on nuclear weapons. Such access needs to be provided to service officers at Kalpakam where AEC has set up a 40MW training reactor for the Indian Navy.
 

Godless-Kafir

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What are those rib like lines all over the ATV? Is that part of some design or poor manufacturing quality?
 

sayareakd

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What are those rib like lines all over the ATV? Is that part of some design or poor manufacturing quality?
those are rubber ties so that it can absorb sonar sound it is not uniform as it might go back as one that is why it is not smooth.
 

black eagle

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Based on K missiles a 200km Air-lunched Nuke tip Missile will add extra punch in Strategic missile arsenal..
but is it at all a wise idea to spend money on such a missile given the vulnerability of both the carrying platform & the weapon system & that too with a mere range of 200km?? I don't think so....
 
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Rahul Singh

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What are those rib like lines all over the ATV? Is that part of some design or poor manufacturing quality?
Like Sayar said these are sound wave absorbing(almost) rubber tiles. There non-uniform placing will help INS Arihant in reducing its acoustics signature to Active as well as Passive SONAR. Best thing is that these tiles were designed and manufactured by one Mysore firm.
 
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Rahul Singh

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Project 'K'
Whosoever headed and is heading the project 'K', doesn't matter who is nodal agency, Navy or NSA or SFC , the real brain behind these missile are from and of DRDO. These projects could not have come to this stage so fast unless DRDO had spent so much sweat, blood and tears in developing Prithavis and Agnis for almost 30 years. Also i don't buy any reason to replace Prithavi and Agnis by these K missiles any time before 2020. Like Shri V K Saraswat said its not very easy to induct a strategic missile into services and K-15, forget rest, will take no less than 5 years to get fully inducted.
 

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