Indigenous nuclear submarine to undergo missile firing tests

[sathya]

I think it's a journo mistake ..

It should be like Nirbhay test fire will be followed by another missile test from Arihant submarine...

 

[nik22]

Baigerato, Jan loge kya hamare padosiyo ki

 

[Hindustani78]

Sir ji, I am saying the same, will Nirbhay fit the same tubes like K15. K15 are fitting 3 in each tube in vertical launch configuration.. So i am asking is Nirbhay also similarly able to fit 3 in nos in each tube in the same configuration.

IF not, will it be fired from torpedo tubes same like popeye turbo in Dolphin II operated by Israel and made by France..

Nirbhay is just 0.52m in diameter with 6m length. implying its sleeker than K15


Look at the last figure, with diameter of 0.66m (bottom right 4th quadrant), 6+1(center) or even worst case scenario 6 missiles of diameter 0.66 m can be fitted in a single tube vs K15 diameter of 0.93m type 3 in nos (as shown in top left 1st quadrant)

Btw also it can be configured to fire from 533mm tube as its diameter is just 0.52m whichh Arihant is suppose to have 6 in numbers (6x533mm torpedo tubes)

i say each Arihant will carry
Tube Vertical config - 6-7 Nirbhays in each tube based on above diagram
Tube torpedo - Any number based on reload perhaps 6 SLCMs in single salvo mode before full reloads..

@Abingdonboy @Capt.Popeye @kurup @MilSpec @SpArK @AUSTERLITZ Can you help explain..

 

[Rangila]

Arihant armament

Arihant will be capable of carrying all types of missiles and will have underwater ballistic missile launch capability. It will carry 12 K-15 SLBMs that can be launched even under ice caps.

Tested in 2008, the K-15 missiles are 10.4m long and have a diameter of 1m. The 6.3t missiles can carry a 5t nuclear warhead targeted 750km away. The K-15 missiles, however, will be replaced later by the 3,500km range K-X missiles.

Apart from the K-15s, the submarine will carry a range of anti-ship and land-attack cruise missiles and torpedoes.

The 6.3t missiles can carry a 5t nuclear warhead targeted 750km away

Which Indian missile is capable of 5 ton (weight) carrying warhead?

 

[Hindustani78]

The 6.3t missiles can carry a 5t nuclear warhead targeted 750km away

Which Indian missile is capable of 5 ton (weight) carrying warhead?

indigenously developed surface-to-surface missile Agni-5 is capable of striking a range more than 5000 km. It is about 17 meters long, 2 metres wide and has a launch weight of around 50 tonnes. The missile can carry a nuclear warhead of more than one tonne.

 

[Rangila]

indigenously developed surface-to-surface missile Agni-5 is capable of striking a range more than 5000 km. It is about 17 meters long, 2 metres wide and has a launch weight of around 50 tonnes. The missile can carry a nuclear warhead of more than one tonne.

So what is this?

The 6.3t missiles can carry a 5t nuclear warhead targeted 750km away

Source: Indigenous nuclear submarine to undergo missile firing tests | Page 2

 

[indiatester]

Nirbhay part is really surprising. Good progress if true!

 

[Hindustani78]

So what is this?

The 6.3t missiles can carry a 5t nuclear warhead targeted 750km away

Source: Indigenous nuclear submarine to undergo missile firing tests | Page 2

Arihant will carry 12 K-15 missiles. Besides Arihant, which has been built at the Visakhapatnam Naval Dock Yard, India is building two more nuclear-powered submarines for commissioning into the Navy and their hulls are being fabricated at Vadodara.

After its launch from under water, the 10-metre tall K-15 will rise to an altitude of 20 km and cover a distance of 700 km. A gas generator will push K-15 from out of water. Arihant’s reactor will be commissioned by the end of this year, informed sources said.

Arihant is powered by an 80 MWt (thermal) nuclear power reactor which uses enriched uranium as fuel and light water as both coolant and moderator. The enriched uranium has been fabricated at Rare Materials Plant at Ratnahalli, near Mysore.

The nuclear power reactor which will propel Arihant is similar to the Light Water Reactor commissioned at Kalpakkam. The Kalpakkam reactor also has capacity of 80 MWt and is being used to train the Naval personnel who will be manning Arihant and the other nuclear-powered submarines under construction.

The DRDO is developing another submarine-launched missile, K-4 which will have a range of 3,000 km. The first flight trial of K-4 will be conducted soon from a submerged pontoon off Visakhapatnam.


***************

The first fully-integrated test-firing of the 6.5-tonne K-15/B-05 was conducted in January 2010 followed by another one in January 2011, another one in January 2012 & 27th Jan test-firing, in all totalling 4 test-firings of a fully functional SLBM from an underwater pontoon.

Two more test-firings are due in future, these being conducted from the Arihant SSBN sometime next year. The 27th Jan test-firing saw the K-15’s first-stage solid-fuel rocket booster being ignited inside a pontoon-based silo 20 metres under water & being lifted up to an altitude of 7km. Then the second-stage solid-fuel rocket ignited & lifted the K-15/B-05 to an altitude of 40km, following which the K-15 adopted a depressed trajectory flight-path. Being developed now is the follow-on 20-tonne 10.22-metre long but fatter K-4 SLBM which will have a 3,500km-range for the next ATVs with bigger plugs as increasing the range is now possible. This will be followed by an enhanced 12-metre-long version of the K-4 SLBM with a 5,000km-range. IDU congratulated Bhasin and Chakraborty and the unsung team and shows if Navy DRDO teams up with risk management sans bureaucracy more can be achived.

 

[Rangila]

5t nuclear warhead ???

@Hindustani78

 

[Hindustani78]

When the Arihant is finally commissioned, it will be fitted with 12 Sagarika K-15 submarine-launched ballistic missiles (SLBMs). The Sagarika, however, only has a strike radius of about 750 to 800 km, which many analysts rightly consider inadequate. Indeed, with such a short range, the Arihant could not reach Islamabad, let alone China’s strategic centres. The DRDO is currently working on two longer-range SLBMs: the 3,500-km range K-4, which recently underwent a successful test launch from an underwater pontoon, and the 5,000-km range K-5, which is still in the design phase. According to sources, the Arihant is fitted with four universal tube launchers, which can each carry either three K-15 missiles or one K-4 missile. Observers have raised questions, however, over the compatibility of the K-4’s height with the submarine’s 10.4-m hull. If the length of the K-4 cannot be shortened, the Arihant may need to be retrofitted with a hydrodynamic outer development, or “bump.” Even if the DRDO’s engineers do succeed in squeezing the K-4 aboard, the missile’s range remains somewhat unsatisfactory. It would require India’s nuclear submariners to operate on the northeastern fringes of the Bay of Bengal in order to effectively target China’s major metropolises, rather than within the more sanitised waters abutting India’s eastern seaboard. The K-5 is rumoured to stand at a height of about 12 m, which rules out its deployment aboard the Arihant. The second major technological limitation is that of the Arihant’s nuclear reactor.

While India’s submarine fleet has been taking shape, Delhi has also conducted a series of test firings, starting in 2000, of Dhanush-class short-range ballistic missiles from surface ships. For the time being, however, it appears that the Dhanush programme is merely a stopgap measure until the SSBN fleet comes into full fruition.


six of the next generation P75(I) diesel electric submarines, all of which will be built in India. Apart from the ability to fire long range heavy weight wire guided torpedoes and an AIP system, this new line of subs can also feature land attack capability. For this, the submarines will have to integrate a Vertical Launching System in the hull. The VLS will allows subs (and surface ships) to carry the world’s fastest cruise missile, the Brahmos, with a range of 290 km and the under development Nirbhaya cruise missile which has a range of 1,000 km. The Brahmos has already demonstrated the underwater launch capability and Nirbhaya too is being designed for launch from multiple platforms.

5t nuclear warhead ???

@Hindustani78

Published: 11th Aug 2013
India activates 'secret' undersea missile -The New Indian Express
With a length of 12 meters and diameter of 1.3 meters, the missile weighs around 17 tonne and is capable of carrying a warhead of around 2 tonne. Basically a ballistic missile as it uses solid propellant, the K-4 missile combines the aspects of both cruise and ballistic missile, which use multiple-stage rockets to exit the atmosphere and re-enter in a parabolic trajectory. It flies in hypersonic speed and is the world's best weapon in this class.

 

[migflug]

5t nuclear warhead ???

@Hindustani78

Mistakenly reported . even agni 6 will have only 3 tonne nuke warhead

 

[kaykay]

The 6.3t missiles can carry a 5t nuclear warhead targeted 750km away

Which Indian missile is capable of 5 ton (weight) carrying warhead?

I think it will carry 17kt yield nuclear warhead weighting 180 kg.

 

[Rangila]

India does not have a single Missile with a 5 ton warhead. That is too many tons capacity to be built in a Missile thereby compromising its range. Each ton of bomb mass represents 6 megaton of TNT power. India is not in the Megaton club. Period.

Blast explosive yield, the energy released from the atomic bomb, is different from actual warhead & its weight.
India's max (declared) yield is 200 KT.

Imagine the old gun type crude atomic bomb "Fat man" leveled the Nagasaki city. The yield was mere 21 KT.
It used only 6 Kg of plutonium.

Old time is no more. Now is the age of MIRVs. Less "Maal" more damage, as each small warhead is independently guided.. India has already sank its fangs into it 3 years ago. Hopefully we shall be getting good news on this after 3 to 4 years.

 

[HariPrasad]

The 6.3t missiles can carry a 5t nuclear warhead targeted 750km away

Which Indian missile is capable of 5 ton (weight) carrying warhead?

Pay load of K 15 is 1 ton.

 

[Rangila]

I think it will carry 17kt yield nuclear warhead weighting 180 kg.

Why 17?
Is it a tactical nuclear weapon?
With such low yield you are only encouraging your enemy to retaliate full blast & pre-empt you.
Such idea is beyond any warfare logic. I do not know of any submarine carrying tactical nuclear weapons with such low yield. Underwater assets are meant for second strike - Which are supposed to be for massive retaliation.
Hence the second strike with 17 KT is not something to write home about.