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You misinterpreted it mate.
It was completed with Russki help. And it is part of a $2.9 Bn Indian plan to build 5 submarines.
Indian nuclear submarines
- Thread starter nitesh
- Start date
It was completed with Russki help. And it is part of a $2.9 Bn Indian plan to build 5 submarines.
A first hand account from Mr. Shiv Aroor (respected Indian defence journalist, who has been on the tails of the ATV for a long time now)
The MoD/PMO has decided not to release any photographs of the submarine, and no filming or photography by the media was permitted inside the Matsya Dock, even though we were just ten metres from it and watched the entire show simply awestruck. But that thing you see behind Dr Singh in the second photo is INS Arihant! If and until any photos are released officially, I will shortly post an illustration of the real thing.
VISAKHAPATNAM, JULY 26: Have had a truly spectacular day here in Vizag, one among the first group of journalists ever to lay eyes on India's advanced technology vessel, the nuclear submarine INS Arihant. First things first -- the submarine is visible based on the Russian Borei-class SSBN (moments before we saw the real sub in its dock, we noticed the official invitation had a silhouette of the submarine indicating that it's almost definitely based on the Borei). The submarine has a launch crew commanded by Captain Anshuman Dutt. A phenomenal sight in the Matsya Dock of the Shipbuilding Center (SBC), the submarine was slowly towed out, as we I and other journalists sat ten metres from it, pretty much just in absolute amazement, and simply overwhelmed by the moment. The advanced technology vessel!
A dark matted olive shade, its anechoic tiles clearly demarcated (or a bad weld job?) The boat, bearing all the obvious signs of Russian influence, will undergo harbour acceptance trials (HATs) and full systems trials over the next one year, followed by sea trials and then weapon systems trials. The boat does not have a towed array sonar pod, and has a gradual gradiented hump. According to the official figures released today, the submarine is 110-meters long, 11-metres wide and has a submerged displacement of 6,000-tons.
Courtesy: Livefist
The MoD/PMO has decided not to release any photographs of the submarine, and no filming or photography by the media was permitted inside the Matsya Dock, even though we were just ten metres from it and watched the entire show simply awestruck. But that thing you see behind Dr Singh in the second photo is INS Arihant! If and until any photos are released officially, I will shortly post an illustration of the real thing.
---------------------
VISAKHAPATNAM, JULY 26: Have had a truly spectacular day here in Vizag, one among the first group of journalists ever to lay eyes on India's advanced technology vessel, the nuclear submarine INS Arihant. First things first -- the submarine is visible based on the Russian Borei-class SSBN (moments before we saw the real sub in its dock, we noticed the official invitation had a silhouette of the submarine indicating that it's almost definitely based on the Borei). The submarine has a launch crew commanded by Captain Anshuman Dutt. A phenomenal sight in the Matsya Dock of the Shipbuilding Center (SBC), the submarine was slowly towed out, as we I and other journalists sat ten metres from it, pretty much just in absolute amazement, and simply overwhelmed by the moment. The advanced technology vessel!
A dark matted olive shade, its anechoic tiles clearly demarcated (or a bad weld job?) The boat, bearing all the obvious signs of Russian influence, will undergo harbour acceptance trials (HATs) and full systems trials over the next one year, followed by sea trials and then weapon systems trials. The boat does not have a towed array sonar pod, and has a gradual gradiented hump. According to the official figures released today, the submarine is 110-meters long, 11-metres wide and has a submerged displacement of 6,000-tons.
Courtesy: Livefist
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Tamil
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Go NAVY Go...
One of a great achievement of India, but sadly it took 3 decades to finish. any way we must fasten to build more to protect our nation.
Salute the Nation on 10th year of Operation VIJAY & the Lunch of INS ARIHANT on the same day. I proudly say I AM AN INDIAN.
JAI HIND
One of a great achievement of India, but sadly it took 3 decades to finish. any way we must fasten to build more to protect our nation.
Salute the Nation on 10th year of Operation VIJAY & the Lunch of INS ARIHANT on the same day. I proudly say I AM AN INDIAN.
JAI HIND
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s_bman post the link always ...
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India joins elite nuclear sub club
The dream of over a quarter of a century will be fulfilled today when Ms Gursharan Kaur, wife of Prime Minister Manmohan Singh, breaks the coconut on the hull of India’s first indigenously constructed nuclear- propelled ballistic missile submarine — called a boomer in popular parlance — at a super- secret Naval base in Visakhapatnam.
At that moment, the 112- metre long black marine monster, now named Arihant ( destroyer of the enemy), will be pulled out of its lair — a covered dry dock, nearly halfa- kilometre long and 50 metre deep — where it has been conceived and grown. The building, called the Ship Building Centre at INS Virbhau, the Navy’s base in Vizag, is at the very end of the harbour.
The Indian Navy and the Defence Research and Development Organisation ( DRDO) have expended a great deal of treasure and sweat to reach this point. A year from now, after harbour and sea trials, the Arihant, with a complement of 23 officers and 72 sailors, will join the naval fleet.
What is so special about a boomer? Everything, if you see it from the point of view of the country’s nuclear deterrent.
Because of India’s “ no first use” pledge, our weapons must survive a first strike for retaliation.
So the Arihant’s primary weapon is stealth. It can lurk in ocean depths of half a kilometre and more and fire the Sagarika from under the sea. The key lies in its nuclear propulsion. The nuclear reactor of the sub generates heat to turn water into steam in a generator which, in turn, drives the turbine generators which supply the ship with electricity and drive the main propulsion turbines and propeller. There is no stage which requires air or oxygen.
SUBMARINES can be detected by sonar, or sound ranging, and so not only has the Arihant’s propulsion system given a double shield, its outer hull is covered by thick rubber tiles studded with conical gaps that trap sound.
After the first trial of the steam cycle and turbines, the Arihant will be hooked up to the nuclear reactor. The reactor’s fuel rods are currently locked and sealed.
They will be unlocked and neutrons will be introduced to start up the 85 MW pressurised water reactor. The reactor will work continuously for anything up to 10 years till the fuel runs out.
Then it will be brought back to the dock, the reactor compartment will be cut open, new fuel rods inserted and resealed.
Arihant’s construction got underway in 1998 with Larsen & Toubro machining 13 sections of the hull at its plant in Hazira to a design provided by the Malakit design bureau of Russia. These were then taken in a barge to Vizag and outfitted with their respective equipment — missile launchers, combat information systems, torpedo tubes, ballast tanks, living spaces, sonars, steam generator and turbine and so on. Then they were welded into three distinct sections.
The first contained the sonar equipment, torpedo tubes and control systems. The second section comprised of the combat information systems and an array of electronic equipment, accommodation as well as the ballistic missile launchers. The third section, distinct and specially shielded, comprised of the reactor and the steam turbine and gearings.
Considering that India began its first project for the sub in the late 1970s, you could well ask why it has taken so much time.
The short answer is that we are not as advanced as we think we are when it comes to engineering, metallurgy, and nuclear science.
The first glimmer of this was visible when in the early 1980s the first project ran aground after spending some $ 4 million ( Rs 20 crore). The second project under the auspices of the DRDO worked on different assumptions, but even it has had a rocky ride.
The plan was for India to acquire the drawings of the Russian Charlie II submarine and fabricate it, and at the same time design its own 100 MW reactor. A new Advanced Technology Vessel programme was created. At the same time, in 1988, a Charlie II, renamed Chakra, was leased from the Soviet Union. The idea was to run it till we had made our own.
UNFORTUNATELY, the Soviet Union collapsed and there was no extension of the lease. By then we had created a number of facilities which included a special pier with a 60- tonne crane, radiation safety services, swimming dock, slipway and workshop, but the project remained in the doldrums.
This was the time, in the mid- 1990s, when the ATV organisation realised how much of a long haul it would be. Components and assemblies for nuclear- propelled submarines had to have a very high quality requirement, something the country lacked.
For obvious reasons, precision welding is one of the most important aspects of submarine construction.
More troubling was the fact that the reactor made by the Indira Gandhi Atomic Research Centre, Kalpakkam could not make grade. Once again the Russians helped, quietly.
They provided equipment for two VM- 5 pressurised water reactors, one of which was assembled and tested at Kalpakkam’s Prototype Testing Centre in 2004. The Russians have also been helping with the design of the Sagarika, the ballistic missile that will be the main weapon of the Arihant.
The big challenge for the engineers was to use the Charlie II design and modify it by adding one more compartment, the one that carried the ballistic missile tubes which increased its length by 10 m or so. But they managed this and earlier this year the reactor and propulsion unit was finally welded to the other two units. Many Indian companies have been involved. The uranium, enriched at around 20 per cent, has been provided by the Indian uranium enrichment facility at Ratnehalli, near Mysore.
India has another nuclear- propelled submarine en route in 2010, an Akula- class Russian attack submarine which differs from the Arihant which is a ballistic missile sub. Such subs are used to hunt down enemy submarines and ships. Curiously, no one seems to know who wants the Akula. The Navy brass insists it is not them. But the country is expected to spend $ 700 million ( Rs 350 crore) to lease it for a period of 10 years. But then this is what keeps the country’s defence purchases booming.
India joins elite nuclear sub club: India Today - Latest Breaking News from India, World, Business, Cricket, Sports, Bollywood.
The dream of over a quarter of a century will be fulfilled today when Ms Gursharan Kaur, wife of Prime Minister Manmohan Singh, breaks the coconut on the hull of India’s first indigenously constructed nuclear- propelled ballistic missile submarine — called a boomer in popular parlance — at a super- secret Naval base in Visakhapatnam.
At that moment, the 112- metre long black marine monster, now named Arihant ( destroyer of the enemy), will be pulled out of its lair — a covered dry dock, nearly halfa- kilometre long and 50 metre deep — where it has been conceived and grown. The building, called the Ship Building Centre at INS Virbhau, the Navy’s base in Vizag, is at the very end of the harbour.
The Indian Navy and the Defence Research and Development Organisation ( DRDO) have expended a great deal of treasure and sweat to reach this point. A year from now, after harbour and sea trials, the Arihant, with a complement of 23 officers and 72 sailors, will join the naval fleet.
What is so special about a boomer? Everything, if you see it from the point of view of the country’s nuclear deterrent.
Because of India’s “ no first use” pledge, our weapons must survive a first strike for retaliation.
So the Arihant’s primary weapon is stealth. It can lurk in ocean depths of half a kilometre and more and fire the Sagarika from under the sea. The key lies in its nuclear propulsion. The nuclear reactor of the sub generates heat to turn water into steam in a generator which, in turn, drives the turbine generators which supply the ship with electricity and drive the main propulsion turbines and propeller. There is no stage which requires air or oxygen.
SUBMARINES can be detected by sonar, or sound ranging, and so not only has the Arihant’s propulsion system given a double shield, its outer hull is covered by thick rubber tiles studded with conical gaps that trap sound.
After the first trial of the steam cycle and turbines, the Arihant will be hooked up to the nuclear reactor. The reactor’s fuel rods are currently locked and sealed.
They will be unlocked and neutrons will be introduced to start up the 85 MW pressurised water reactor. The reactor will work continuously for anything up to 10 years till the fuel runs out.
Then it will be brought back to the dock, the reactor compartment will be cut open, new fuel rods inserted and resealed.
Arihant’s construction got underway in 1998 with Larsen & Toubro machining 13 sections of the hull at its plant in Hazira to a design provided by the Malakit design bureau of Russia. These were then taken in a barge to Vizag and outfitted with their respective equipment — missile launchers, combat information systems, torpedo tubes, ballast tanks, living spaces, sonars, steam generator and turbine and so on. Then they were welded into three distinct sections.
The first contained the sonar equipment, torpedo tubes and control systems. The second section comprised of the combat information systems and an array of electronic equipment, accommodation as well as the ballistic missile launchers. The third section, distinct and specially shielded, comprised of the reactor and the steam turbine and gearings.
Considering that India began its first project for the sub in the late 1970s, you could well ask why it has taken so much time.
The short answer is that we are not as advanced as we think we are when it comes to engineering, metallurgy, and nuclear science.
The first glimmer of this was visible when in the early 1980s the first project ran aground after spending some $ 4 million ( Rs 20 crore). The second project under the auspices of the DRDO worked on different assumptions, but even it has had a rocky ride.
The plan was for India to acquire the drawings of the Russian Charlie II submarine and fabricate it, and at the same time design its own 100 MW reactor. A new Advanced Technology Vessel programme was created. At the same time, in 1988, a Charlie II, renamed Chakra, was leased from the Soviet Union. The idea was to run it till we had made our own.
UNFORTUNATELY, the Soviet Union collapsed and there was no extension of the lease. By then we had created a number of facilities which included a special pier with a 60- tonne crane, radiation safety services, swimming dock, slipway and workshop, but the project remained in the doldrums.
This was the time, in the mid- 1990s, when the ATV organisation realised how much of a long haul it would be. Components and assemblies for nuclear- propelled submarines had to have a very high quality requirement, something the country lacked.
For obvious reasons, precision welding is one of the most important aspects of submarine construction.
More troubling was the fact that the reactor made by the Indira Gandhi Atomic Research Centre, Kalpakkam could not make grade. Once again the Russians helped, quietly.
They provided equipment for two VM- 5 pressurised water reactors, one of which was assembled and tested at Kalpakkam’s Prototype Testing Centre in 2004. The Russians have also been helping with the design of the Sagarika, the ballistic missile that will be the main weapon of the Arihant.
The big challenge for the engineers was to use the Charlie II design and modify it by adding one more compartment, the one that carried the ballistic missile tubes which increased its length by 10 m or so. But they managed this and earlier this year the reactor and propulsion unit was finally welded to the other two units. Many Indian companies have been involved. The uranium, enriched at around 20 per cent, has been provided by the Indian uranium enrichment facility at Ratnehalli, near Mysore.
India has another nuclear- propelled submarine en route in 2010, an Akula- class Russian attack submarine which differs from the Arihant which is a ballistic missile sub. Such subs are used to hunt down enemy submarines and ships. Curiously, no one seems to know who wants the Akula. The Navy brass insists it is not them. But the country is expected to spend $ 700 million ( Rs 350 crore) to lease it for a period of 10 years. But then this is what keeps the country’s defence purchases booming.
India joins elite nuclear sub club: India Today - Latest Breaking News from India, World, Business, Cricket, Sports, Bollywood.
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Two more submarines on cards
New Delhi: Approvals have already been granted for building two more nuclear-powered submarines in the Arihant class, according to sources.
.art_img_class {width:200px;background:#f0f0f0;margin-top:1em;font-size:0.7em;display:none;}
The construction of the hull for the next one is already underway at a facility of Larson and Toubro (L&T) at Hazira where the first hull was also built, the sources said.
Costing over Rs3,000 crore, the three submarines will be based at a facility being developed close to Vishakpatnam. For the new nuclear submarine base at Rambilli, hundreds of acres of land has already been acquired and the navy is hoping to commission the base by 2011 in time for INS Arihant's commissioning.
Two of these submarines would be deep in the sea at any given point of time while the third will rest at the base, the sources said.
The government has also given clearance for the construction of much bigger SSBNs, each of them costing about $2 billion (approximately Rs 10,000 crore each). This would take off once the three Arihant class submarines are ready. SSBNs are nuclear-powered submarines capable of launching ballistic missiles.
Besides, the navy has also proposed the construction of nuclear-powered fast attack submarines that would provide escort to the SSBNs.
The SSBNs are not on "patrol" nor are they looking at attacking large ships or tactical targets on land. They are primarily used to hide nuclear weapons and are kept ready for a second strike in case everything else fails.
Each of the present class of Advanced Technology Vessels (ATV) are to be manned by a 100-member crew. The team is being trained in Visakhapatnam.
The training will get a boost when a nuclear submarine leased from Russia arrives sometime later this year.
Defence Research Development Organisation (DRDO) sources said they are ready with K-15 missiles, which has a range of over 750 kilometres and can carry 1,000-kg
warheads.
A follow-on missile with over 3500-kilometre range -- named K-X -- is also underdevelopment for the nuclear submarines, the DRDO sources said
Two more submarines on cards
New Delhi: Approvals have already been granted for building two more nuclear-powered submarines in the Arihant class, according to sources.
.art_img_class {width:200px;background:#f0f0f0;margin-top:1em;font-size:0.7em;display:none;}
The construction of the hull for the next one is already underway at a facility of Larson and Toubro (L&T) at Hazira where the first hull was also built, the sources said.
Costing over Rs3,000 crore, the three submarines will be based at a facility being developed close to Vishakpatnam. For the new nuclear submarine base at Rambilli, hundreds of acres of land has already been acquired and the navy is hoping to commission the base by 2011 in time for INS Arihant's commissioning.
Two of these submarines would be deep in the sea at any given point of time while the third will rest at the base, the sources said.
The government has also given clearance for the construction of much bigger SSBNs, each of them costing about $2 billion (approximately Rs 10,000 crore each). This would take off once the three Arihant class submarines are ready. SSBNs are nuclear-powered submarines capable of launching ballistic missiles.
Besides, the navy has also proposed the construction of nuclear-powered fast attack submarines that would provide escort to the SSBNs.
The SSBNs are not on "patrol" nor are they looking at attacking large ships or tactical targets on land. They are primarily used to hide nuclear weapons and are kept ready for a second strike in case everything else fails.
Each of the present class of Advanced Technology Vessels (ATV) are to be manned by a 100-member crew. The team is being trained in Visakhapatnam.
The training will get a boost when a nuclear submarine leased from Russia arrives sometime later this year.
Defence Research Development Organisation (DRDO) sources said they are ready with K-15 missiles, which has a range of over 750 kilometres and can carry 1,000-kg
warheads.
A follow-on missile with over 3500-kilometre range -- named K-X -- is also underdevelopment for the nuclear submarines, the DRDO sources said
Two more submarines on cards
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Private sector played a major role in Arihant
Josy Joseph / DNA
Monday, July 27, 2009 3:06 IST
New Delhi: For the past two decades, a few of India's biggest business houses have been quietly aiding the construction of country's first nuclear-powered submarine.
.art_img_class {width:200px;background:#f0f0f0;margin-top:1em;font-size:0.7em;display:none;}
Larson & Toubro (L&T) built the hull for the submarine at its facility in Hazira, where in 1998, Dr APJ Abdul Kalam, then DRDO chief, quietly cut the steel for the hull. The ATV (advanced technology vessel) project remains L&T's biggest order from the defence forces for the engineering giant, which has been active in the defence sector
for years.
The other big player in the defence sector, the Tatas, too played an important role in ATV project. Tata Power made the control systems for the submarine and Walchandnagar Industries designed many of the systems for the steam turbine.
PM Manmohan Singh acknowledged the private sector's role. "I am glad that this submarine is the outcome of a productive public-private partnership. Private industry has evolved considerably during the last few decades and we should leverage its strengths to achieve our defence goals," he said.
A senior executive at one of the firms involved in the ATV said the project has shown that the private sector in India is capable of doing "any complex system, if given the proper opportunity." But defence procurement procedures (DPP) are skewed. "The DPP favours defence public sector units,Defence Research and Development Organisation, and even foreign vendors. I don't find anything to favour us," said the senior executive.
Private sector played a major role in Arihant
Josy Joseph / DNA
Monday, July 27, 2009 3:06 IST
New Delhi: For the past two decades, a few of India's biggest business houses have been quietly aiding the construction of country's first nuclear-powered submarine.
.art_img_class {width:200px;background:#f0f0f0;margin-top:1em;font-size:0.7em;display:none;}
Larson & Toubro (L&T) built the hull for the submarine at its facility in Hazira, where in 1998, Dr APJ Abdul Kalam, then DRDO chief, quietly cut the steel for the hull. The ATV (advanced technology vessel) project remains L&T's biggest order from the defence forces for the engineering giant, which has been active in the defence sector
for years.
The other big player in the defence sector, the Tatas, too played an important role in ATV project. Tata Power made the control systems for the submarine and Walchandnagar Industries designed many of the systems for the steam turbine.
PM Manmohan Singh acknowledged the private sector's role. "I am glad that this submarine is the outcome of a productive public-private partnership. Private industry has evolved considerably during the last few decades and we should leverage its strengths to achieve our defence goals," he said.
A senior executive at one of the firms involved in the ATV said the project has shown that the private sector in India is capable of doing "any complex system, if given the proper opportunity." But defence procurement procedures (DPP) are skewed. "The DPP favours defence public sector units,Defence Research and Development Organisation, and even foreign vendors. I don't find anything to favour us," said the senior executive.
Private sector played a major role in Arihant
youngindian
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Nuclear-powered submarine to be fitted with ballistic missiles
Monday, Jul 27, 2009
CHENNAI: A nuclear-powered submarine is a much more complex platform than any other vessel and India building one on its own is a great achievement. This is the unanimous assessment of officials, be they from the Defence Research and Development Organisation (DRDO), the Department of Atomic Energy or the Indian Navy.
What enhances the scale of the achievement is that INS Arihant, India’s nuclear-powered submarine, will be fitted with India’s own K-15 ballistic missiles that can be launched from under water. The K-15 missiles, which are already under production, can carry both conventional and nuclear warheads. They have a range of 700 km. They are 10.4 metres tall and weigh 6.3 tonnes each.
“This is a very big capability,” a DRDO official said. “It means we can launch missiles with nuclear warheads from ground, drop nuclear bombs from air and also fire them now from under water.”
A nuclear-powered submarine bestowed on India the status of a nation possessing a blue-water navy because the boat can travel far and wide.
While the Navy designed INS Arihant, the Bhabha Atomic Research Centre (BARC) built the mini-nuclear reactor that powers the submarine, the DRDO developed the K-15 missiles. The K-15 missiles have been test-fired several times from submerged pontoons off the coast of Visakhapatnam. A missile emerging from the water without losing its fire was a technology in itself.
A distinct advantage of a nuclear-powered submarine is that while it can remain under water for a long duration, a diesel-fired submarine has to rise to the surface every day for ejecting the carbon-dioxide produced by the diesel-generator. Otherwise, the boat’s crew will face problem.
“In a nuclear-energy system used in a submarine, there is no emission of carbon-dioxide. It is a clean form of energy,” a DRDO official explained. “The turbine operating on enriched uranium in INS Arihant is a clean system. But a diesel-generator emits carbon-dioxide. You cannot discharge it into the water. So the submarine has to be brought up to the surface every day to eject the carbon-dioxide into the atmosphere.”
Trials to follow
DRDO officials cautioned that while INS Arihant entering water from the dry-dock in the Ship-Building Centre of the Visakhatpatnam harbour on Sunday was an important step forward, making the boat operational would take time. “The submarine will now go for harbour acceptance trials (HATs). Then it will go for sea acceptance trials (SATs). Later it will go down to a certain depth and come up,” they said.
A nuclear-powered submarine was a highly complex platform and safety regulations had to be adhered to. “There are hundreds of systems on the boat. They have to work one after another. This is called setting-to-work. The HATs and SATs will last about a year-and-a-half. This is the most difficult period of activity and you have to do it perfectly. Then the K-15 missiles will be fitted into the boat.”
M. Natarajan, Scientific Advisor to the Defence Minister, was present when the INS Arihant was launched on Sunday.
The project has been named the “Advanced Technology Vessel” (ATV) programme. Vice-Admiral (retired) D.S.P. Varma is the Director-General of the ATV programme.
The Hindu : Front Page : Nuclear-powered submarine to be fitted with ballistic missiles
Monday, Jul 27, 2009
CHENNAI: A nuclear-powered submarine is a much more complex platform than any other vessel and India building one on its own is a great achievement. This is the unanimous assessment of officials, be they from the Defence Research and Development Organisation (DRDO), the Department of Atomic Energy or the Indian Navy.
What enhances the scale of the achievement is that INS Arihant, India’s nuclear-powered submarine, will be fitted with India’s own K-15 ballistic missiles that can be launched from under water. The K-15 missiles, which are already under production, can carry both conventional and nuclear warheads. They have a range of 700 km. They are 10.4 metres tall and weigh 6.3 tonnes each.
“This is a very big capability,” a DRDO official said. “It means we can launch missiles with nuclear warheads from ground, drop nuclear bombs from air and also fire them now from under water.”
A nuclear-powered submarine bestowed on India the status of a nation possessing a blue-water navy because the boat can travel far and wide.
While the Navy designed INS Arihant, the Bhabha Atomic Research Centre (BARC) built the mini-nuclear reactor that powers the submarine, the DRDO developed the K-15 missiles. The K-15 missiles have been test-fired several times from submerged pontoons off the coast of Visakhapatnam. A missile emerging from the water without losing its fire was a technology in itself.
A distinct advantage of a nuclear-powered submarine is that while it can remain under water for a long duration, a diesel-fired submarine has to rise to the surface every day for ejecting the carbon-dioxide produced by the diesel-generator. Otherwise, the boat’s crew will face problem.
“In a nuclear-energy system used in a submarine, there is no emission of carbon-dioxide. It is a clean form of energy,” a DRDO official explained. “The turbine operating on enriched uranium in INS Arihant is a clean system. But a diesel-generator emits carbon-dioxide. You cannot discharge it into the water. So the submarine has to be brought up to the surface every day to eject the carbon-dioxide into the atmosphere.”
Trials to follow
DRDO officials cautioned that while INS Arihant entering water from the dry-dock in the Ship-Building Centre of the Visakhatpatnam harbour on Sunday was an important step forward, making the boat operational would take time. “The submarine will now go for harbour acceptance trials (HATs). Then it will go for sea acceptance trials (SATs). Later it will go down to a certain depth and come up,” they said.
A nuclear-powered submarine was a highly complex platform and safety regulations had to be adhered to. “There are hundreds of systems on the boat. They have to work one after another. This is called setting-to-work. The HATs and SATs will last about a year-and-a-half. This is the most difficult period of activity and you have to do it perfectly. Then the K-15 missiles will be fitted into the boat.”
M. Natarajan, Scientific Advisor to the Defence Minister, was present when the INS Arihant was launched on Sunday.
The project has been named the “Advanced Technology Vessel” (ATV) programme. Vice-Admiral (retired) D.S.P. Varma is the Director-General of the ATV programme.
The Hindu : Front Page : Nuclear-powered submarine to be fitted with ballistic missiles
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Top secret 11 yrs in making, submarine faces crucial tests ahead
Mon, Jul 27 06:28 AM
Over the next two years, a series of tests, including the crucial activation of the nuclear reactor and firing of missiles, will be carried out on the INS Arihant to make it fully functional and ready for induction into the Indian Navy. It took the Ship Building Centre (SBC) almost 11 years to construct the country's first indigenous nuclear-powered submarine. Sanctioned using secret funds in the late seventies by then Prime Minister Indira Gandhi after India conducted its first nuclear test, the design and technology of INS Arihant was locked in 1984 when the formal go-ahead was given. Work on the submarine started in 1998.
The submarine has been moved a short distance away from the dry dock to a covered test area called "Site Bravo". While most systems, including the power plant, missile launchers and torpedo tubes, have already been fitted on board, a few others will now be put on the submarine. This helps save time as the dry dock will now be available for the construction of the second and third nuclear submarines of the same class. Sources said the hulls of the second and third submarines have already been completed and the two warships will be assembled at Vizag over the next few years.
"We have put a lot of systems online. Now, all the other systems will also be put online," said Vice Admiral D S P Verma (retd), project director of the Advanced Technology Vessel (ATV), the codename for the nuclear submarine project. Over the next few months, engineers working on the submarine will test all its systems, including the engine, communications and sensors on secondary power or power from a land-based source. After all the systems have been validated, the most crucial part of the induction process will commence — the firing of the nuclear reactor. The miniaturised reactor, which will generate 80 MW of power, has been developed by the Bhabha Atomic Research Centre (BARC) with the help of a Russian design team.
The actual starting of the reactor to power the submarine will be something that would keep a lot of fingers crossed at the SBC. As soon as the reactor is fired up, all systems will be tested on primary power, or actual in-borne power of the submarine.
"We have put in the reactor, that is like the heart, and water and oil, that is like the blood of the submarine. Now, we have to get the fluids running and the heart ticking," said Vice Admiral Verma. Once the reactor is stable, the submarine will be taken out in the Vizag harbour for a round of trials. The first of these will involve gentle cruises around the harbour for a few days to validate the controls and stability of the platform. Subsequently, the Arihant will be moved out to sea for a series of high-speed runs, submerged tests and underwater trials. Incidentally, the crew of the submarine will not be changed over the next two years as it is made ready for induction.
The final phase of the two-year testing process would be the actual firing of the Submarine Launched Ballistic Missiles (SLBMs) from the platform. While there is no official word on it, the Arihant is expected to carry 12 K 15 short range nuclear tipped ballistic missiles.
Sources said that the firing of the missiles, while the vessel is submerged, would be the final stage of the testing process. The K 15 missiles, with a range of over 700 km, would be the lethal punch. A successful firing would make the submarine ready for induction into the Navy. Once inducted, it will take a few years (experts say close to five years) before the Navy is fully adept at handling the vessel and comfortable in deploying it beyond Indian waters.
Meanwhile, sources said they have also got the nod for the construction of a second class of nuclear attack submarine that will basically be predator vessels designed to target other nuclear submarines and aircraft carriers.
Link
sayareakd
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guys it is very strange that ATV programme was planned in mid 1970, and the present ATVs construction started only 11 years ago, which mean just year before Kargil war, what about the time gap in between ??? i can understand that we took time for development and research of very systems and sub systems, still 1980 to 1998 effort is not shown by GOI........
their was talk about several land base nuclear ractor for ATV being tested by BARC.
but no talk of any first model of sub in between 1980 to 1998......
their was talk about several land base nuclear ractor for ATV being tested by BARC.
but no talk of any first model of sub in between 1980 to 1998......
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We played a vital role in Arihant: L&T
Engineering major Larsen & Toubro (L&T) today said it had played a critical role in building India’s first indigenous nuclear-powered submarine, INS Arihant, which was launched today.
Based on the design provided by the Navy and Defence Research and Development Organisation (DRDO), L&T’s submarine design centre carried out detailed engineering, using the latest 3D modelling and product data management software, said a press release. “We feel very proud to have contributed significantly to realising India’s dream of an indigenous nuclear submarine. Over the last four decades, L&T has played a crucial pioneering role in building India’s strategic sectors by successfully executing several technology-intensive and challenging projects,” said L&T Chairman and MD A M Naik.
Building the first nuclear submarine was the latest milestone in L&T’s association with the Indian Navy and the DRDO. The company was looking forward to building more submarines and warships, Naik added. In May, the company had entered into an agreement to float a joint venture with EADS Defence and Security, Europe’s largest defence equipment maker, to tap the Rs 50,000-crore Indian defence market.
The JV is to design, develop and manufacture electronic warfare equipment, radars, military avionics and mobile systems for military requirement. L&T was planning to invest about Rs 2,000 crore over the next three years on defence-related business, Naik had said.
In addition to being the country’s first nuclear-powered indigenous submarine, the new vessel is also the largest and heaviest vessel ever built in India. L&T made the single largest contribution in the construction of this vessel, right from the stage of plate cutting to launch, said the release.
L&T also has co-operation agreements with three major nuclear reactor makers. These are Atomstroyexport (ASE), part of Rosatom of Russia, Toshiba Westinghouse of the US and Atomic Energy of Canada (AEC). The company is also in talks with General Electric Hitachi of the US and Areva of France.
Engineering major Larsen & Toubro (L&T) today said it had played a critical role in building India’s first indigenous nuclear-powered submarine, INS Arihant, which was launched today.
Based on the design provided by the Navy and Defence Research and Development Organisation (DRDO), L&T’s submarine design centre carried out detailed engineering, using the latest 3D modelling and product data management software, said a press release. “We feel very proud to have contributed significantly to realising India’s dream of an indigenous nuclear submarine. Over the last four decades, L&T has played a crucial pioneering role in building India’s strategic sectors by successfully executing several technology-intensive and challenging projects,” said L&T Chairman and MD A M Naik.
Building the first nuclear submarine was the latest milestone in L&T’s association with the Indian Navy and the DRDO. The company was looking forward to building more submarines and warships, Naik added. In May, the company had entered into an agreement to float a joint venture with EADS Defence and Security, Europe’s largest defence equipment maker, to tap the Rs 50,000-crore Indian defence market.
The JV is to design, develop and manufacture electronic warfare equipment, radars, military avionics and mobile systems for military requirement. L&T was planning to invest about Rs 2,000 crore over the next three years on defence-related business, Naik had said.
In addition to being the country’s first nuclear-powered indigenous submarine, the new vessel is also the largest and heaviest vessel ever built in India. L&T made the single largest contribution in the construction of this vessel, right from the stage of plate cutting to launch, said the release.
L&T also has co-operation agreements with three major nuclear reactor makers. These are Atomstroyexport (ASE), part of Rosatom of Russia, Toshiba Westinghouse of the US and Atomic Energy of Canada (AEC). The company is also in talks with General Electric Hitachi of the US and Areva of France.
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Anoop , India today article has details as below
Considering that India began its first project for the sub in the late 1970s, you could well ask why it has taken so much time.
The short answer is that we are not as advanced as we think we are when it comes to engineering, metallurgy, and nuclear science.
The first glimmer of this was visible when in the early 1980s the first project ran aground after spending some $ 4 million ( Rs 20 crore). The second project under the auspices of the DRDO worked on different assumptions, but even it has had a rocky ride.
The plan was for India to acquire the drawings of the Russian Charlie II submarine and fabricate it, and at the same time design its own 100 MW reactor. A new Advanced Technology Vessel programme was created. At the same time, in 1988, a Charlie II, renamed Chakra, was leased from the Soviet Union. The idea was to run it till we had made our own.
UNFORTUNATELY, the Soviet Union collapsed and there was no extension of the lease. By then we had created a number of facilities which included a special pier with a 60- tonne crane, radiation safety services, swimming dock, slipway and workshop, but the project remained in the doldrums.
This was the time, in the mid- 1990s, when the ATV organisation realised how much of a long haul it would be. Components and assemblies for nuclear- propelled submarines had to have a very high quality requirement, something the country lacked.
For obvious reasons, precision welding is one of the most important aspects of submarine construction.
More troubling was the fact that the reactor made by the Indira Gandhi Atomic Research Centre, Kalpakkam could not make grade. Once again the Russians helped, quietly.
They provided equipment for two VM- 5 pressurised water reactors, one of which was assembled and tested at Kalpakkam’s Prototype Testing Centre in 2004. The Russians have also been helping with the design of the Sagarika, the ballistic missile that will be the main weapon of the Arihant.
The big challenge for the engineers was to use the Charlie II design and modify it by adding one more compartment, the one that carried the ballistic missile tubes which increased its length by 10 m or so. But they managed this and earlier this year the reactor and propulsion unit was finally welded to the other two units. Many Indian companies have been involved. The uranium, enriched at around 20 per cent, has been provided by the Indian uranium enrichment facility at Ratnehalli, near Mysore.
vijaytripoli
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first response from Pakistan::
New arms race could be triggered after Indian nuke submarine: Pak Navy
Updated at: 1345 PST, Monday, July 27, 2009
KARACHI: The induction of nuclear submarine in Indian Navy is a step towards destabilizing the region, said Pakistan Navy.
Commenting on the induction of nuclear submarine in Indian Navy, spokesman of Pakistan Navy Salman Ali said Indian nuclear submarine will leave far reaching affects not only Pakistan but also Indian Ocean and adjoining coastal countries. It is a step towards destabilizing the entire region, which could be dangerous for regional peace and balance.
The spokesman said Indian nuclear submarine could launch nuclear arms race in the region. Government will decide about manufacturing of nuclear submarine as Pak Navy is fully prepared to materialize any decision of government, he added.
http://news.xinhuanet.com/english/2009-07/...nt_11780964.htm
New arms race could be triggered after Indian nuke submarine: Pak Navy
Updated at: 1345 PST, Monday, July 27, 2009
KARACHI: The induction of nuclear submarine in Indian Navy is a step towards destabilizing the region, said Pakistan Navy.
Commenting on the induction of nuclear submarine in Indian Navy, spokesman of Pakistan Navy Salman Ali said Indian nuclear submarine will leave far reaching affects not only Pakistan but also Indian Ocean and adjoining coastal countries. It is a step towards destabilizing the entire region, which could be dangerous for regional peace and balance.
The spokesman said Indian nuclear submarine could launch nuclear arms race in the region. Government will decide about manufacturing of nuclear submarine as Pak Navy is fully prepared to materialize any decision of government, he added.
http://news.xinhuanet.com/english/2009-07/...nt_11780964.htm
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Link for the above news
New arms race could be triggered after Indian nuke submarine: Pak Navy - GEO.tv
New arms race could be triggered after Indian nuke submarine: Pak Navy - GEO.tv
indian_blues
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PN is atleast 100 years away even if they start today :blum3:
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