ramana wrote:Ye K4 kamal ki cheez hain.
new Ind Express:
http://newindianexpress.com/thesundayst ... 728237.ece
Amid escalation of simmering tension along the LoC in the wake of unprovoked killing of jawans leading to heightened resentment across the nation, India is contemplating to go for the maiden trial of its long range nuke-capable undersea missile K-4, which had been kept secret so far.
If things go as per the programme, defence sources said the indigenously built submarine launched ballistic (SLBM) missile, which has a strike range of 3000-km to 3,500-km will be test fired from a submerged pontoon, which is almost identical to submarine, off the Vishakhapatnam coast next month.
Though the missile has been designed to be launched from a depth of 50 meter, but this time the scientists are planning to fire it from the undersea platform nearly 20 to 30 meters deep in the Bay of Bengal. Earlier the developmental tests of the missile's gas-booster have already completed successfully.
After the successful activation of the atomic reactor on-board the country’s first indigenous nuclear submarine INS Arihant in the wee hours on Saturday, the DRDO is in fact readying to conduct the first experimental trial of the much-awaited K-4 as soon as possible. This submarine will be equipped with the K-series missiles.
India has so far planned three missiles in the K-series. The 700-km range K-15, renamed as B-05 by the DRDO has been launched 10 times while the K-5 which will have a striking capability of over 5,000 km is under development. All the K-series missiles are faster, lighter and stealthier. The missiles are far more difficult to tackle as they skulk clandestinely undersea and manoeuvrable thus minimising the chance of being shot down by the enemy.
The DRDO is expecting a successful trial of the missile as it would strengthen the country’s position in the very exclusive club of six nations including Russia, USA, France, Britain and China which have the capability of firing nuclear tipped missiles from air, land and undersea.
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.
“At least four tests of B-05 and K-4 missiles have been planned. While the B-05 will be fired from the submarine, K-4 will be launched from the pontoon,” the sources added.
Apart from the K-series missiles, India has the submarine version of BrahMos supersonic cruise missile in its arsenal to boost its second-strike capabilities. However, after the completion of successful trials from INS Arihant, the B-05 missile will be inducted in the armed forces. The DRDO is also developing the air version of the K-series missiles, which can be fitted with fighter aircraft like Sukhoi Su-30-MKI.
IDRW:
http://idrw.org/?p=25622
K-4 SLBM will be Game Changer for India in Asia
Published August 13, 2013 | By admin
SOURCE: VINAYAK SHETTI FOR IDRW NEWS NETWORK ( INN)
K-15 IMAGE
According to media reports India is all set to officially test fire not so secretive K-4 submarine-launched ballistic missile (SLBM) with a range of 3,500 km from a submerged pontoon off the Visakhapatnam coast next month.
Like K-15 missile which was tested recently but actually was twelfth and final development trial of the missiles before the program was officially made public. Next month’s test of K-4 most likely will be final development trial or one of many developmental trials of the missile, since it has been long rumoured that first test firing of K-4 might have taken place way back in 2010 itself.
Faster turnaround on development cycle of K-4 missile was mainly due to many systems which were already perfected while developing the shorter range K-15 SLBM. K-4 will enable an Indian nuclear submarine lurking in the Bay of Bengal to target China and Pakistan simultaneously while staying off Indian coastal waters.
K-4 will be game changer for India in many ways, not only it will complete India’s third leg of the nuclear deterrent (air and ground-launched weapons being the other two) and will also be ideal invulnerable second strike weapon stated in the nuclear doctrine. K-4 even with reduced payload will be able to hit from Bay of Bengal into deeper Chinese cities while staying far away from coast waters of China.
K-15 SLBM which was dubbed Pakistan specific due to its limited range of 750 km mostly could have been used to take out coastal targets rather than deeper targets in main cities. So testing of K-4 SLBM has much more significance to Indian planners since it will be able to hit deeper targets due to better range and in true sense completing India’s nuclear triad.
K-5 which will be next SLBM, which DRDO is working on will have official range of 5000 km and is rumoured to be longer-legged variant of the K-4 incorporating many of the systems and guidance packages of K-4 itself. All the K-series missiles are faster, lighter and stealthier and are named after India’s missile man, former President APJ Abdul Kalam (K stands for Kalam ) , all K series of missiles are designed to defeat even best missile defence systems currently deployed in the world .
INS Arihant has been designed to carry four K-4s or 12 of the 750-km range K-15s and K-5 missile mostly likely will be deployed in Arihant’s sister ship INS Aridhaman later in the decade when both nuclear submarine and missile is ready for induction .
Following based on off line discussions with ArunS:
So one can compare the K-4 dimensions to that of the K-15 which is already published. Most of the sub-systems of K-4 are same as K-15.
In all likelihood the K-4 has similar zero stage to eject it out of the pontoon/sub launch tube.
The K-15 was about 0.7m dia. K-4 is about double the diameter of K-15. So we can estimate its propellent mass and other features from this. Of the weight of 17 tonnes, the payload is 2 tonnes which makes the vehicle weigth about 15 tonnes.
The ballistic/cruise modes indicate its will be like Shourya in its fligh profile. The heavy payload of 2tonnes is what gives its glide phase.
Yes its a game changer as the scientist said.
Arihant will have the 12 K-15s for initial outload and then come back for refit with K-4s unless they are for the second boat.
The K-5 is probably for the follow-on design.
... witness the recent GI joe movie 
