02 July 2011

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Know about K-152 Nerpa nuclear submarine will be renamed as INS Chakra – India will get K-152 Nerpa Nuclear Submarine from Russia on Lease

Updated on Tuesday, January 24, 2012 –

Navy commander Adm. Vladimir Vysotsky said that Russia will transfer the K-152 Nerpa attack submarine to India on a 10-year lease by the end of 2011.He said that “The Indian crew is absolutely prepared for operating the submarine,”

Last month, a top official of the Defense Cooperation Service said the Indian naval crew was already on board the K-152 Nerpa nuclear submarine and was carrying out pre-delivery trials on the high seas.

India will pay between $650 to $900 million for a 10-year lease of the 12,000-ton K-152 Nerpa, an Akula II class nuclear-powered attack submarine.

Akula II class vessels are considered the quietest and deadliest of all Russian nuclear-powered attack submarines.

In January 2004 India and Russia signed the lease contract estimated at some $900 million.
The Nerpa was scheduled to be introduced into the Indian Navy as INS Chakra by mid-2008 but one accident delayed that process.

On November 8, 2008, while the Nerpa was undergoing sea trials, in the Sea of Japan its onboard fire suppression system activated, releasing a deadly gas into the sleeping quarters.
Three crewmembers and 17 shipyard workers were killed.
There were 208 people, 81 of them submariners, onboard the vessel at the time.

Following repairs, which cost an estimated 1.9 billion rubles ($65 million), the submarine had been cleared for final sea trials.

K-152 Nerpa is nuclear-propelled but it will not be armed with its long-range nuclear-tipped missiles due to the Missile Technology Control Regime (MTCR).
The Nerpa will be armed with torpedoes and 300-km Klub-S cruise missiles.

Why India is leasing K-152 Nerpa Nuclear Submarine from Russia?

Important reason is that Indian Navy will get hands-on training to operate the nuclear submarines, the Nerpa will be used to provide protection to INS Arihant, which will be the launch platform for nukes after it becomes operational.
INS Arihant will become operational by 2012.
INS Arihant is presently berthed under a shed at the Ship Building Centre (SBC) near the Naval Dockyard in Vishakhapatnam and will undergo all the standard harbour and sea trials common to all nuclear submarines.
The crew has been trained at the Kalpakkam training nuclear reactor and in Russia

INS Chakra is expected to be commissioned into the Indian Navy before October 2011

Complete Details of the K-152 Nerpa nuclear submarine –

Construction of k-152 Nerpa Nuclear submarine started in year 1993 but due to lack of funding construction was suspended and delayed.

After that in 2004 Russia signed lease agreement with India and once again the construction of K-152 submarine started.


Nerpa is the Project 971 third-generation submarine

Class, Type - nuclear-powered attack submarine

Builder: Komsomolsk-on-Amur

Launch in year – October 2008

Commissioned that is entered in Russia Navy – 2009

Displacement: 8,140 tonnes (8,010 long tons) surfaced

Length: 108.0–111.7 m (354.3–366.5 ft) (sources vary)

Beam: 13.5 m (44 ft 3 in)

Draught: 9.6 m (31 ft 6 in)

power plant – 190 MW OK-650M Pressurized water nuclear reactor

power plant – 2 auxiliary electric engines 410 hp each

Power plant – 2 auxiliary diesel engines 750 hp each

Speed – surface – 20 knots, submerged – 35 knots

Depth – test depth – 480, crush depth – 600m

Endurance – 100 days

Crew – 73 , 31 officers

Reactor – 190 MW OK-650M

Steam turbine – with 43,000 hp

Armament of the K-152 Nerpa nuclear submarine that is INS Chakra –

4x533mm torpedo tubes

4x650mm torpedo tubes

storage space for up to 40 torpedoes/mines/missiles

Nerpa means seal in Russian.
Nerpa is the Russian word for the Baikal seal, and chakra is a Sanskrit word meaning disk, wheel, or in traditional Indian medicine, an energy vortex associated with the body.

Watch the video of K-152 Nerpa nuclear submarine

Updated on Tuesday, January 24, 2012 –

INS Chakra, commissioned at the Primorye region in far south-eastern Russia.
It will be based at Visakhapatnam, next to where INS Arihant is slated to begin
extensive sea trials in February-March.

Russian Akula-II class submarine K-152 Nerpa was commissioned
into Indian Navy as INS Chakra on a 10-year lease.

The deal amount or contract is almost $1-billion.

After getting the K-152 Nuclear powered submarine India became the 6th country which possesses this power.

Following are the names of other 5 nations who got the nuclear powered submarine

1. US

2. Russia

3. France

4. UK

5. China

INS Chakra, however, is not armed with long-range nuclear missiles.
Now Navy will start the training how to operate the nuclear missile powered submarine.

Reality views by sm –

Keyword - K-152 Nerpa, nuclear submarine, Indian Navy 10 Year Lease INS CHAKRA $650