Bharat Rakshak

Not so good news on Arihant front:

INS Arihant will miss December deadline

Hmmm....

As long as she starts sea trials bu 2013. It makes no major difference.

From where did they come up with the no of 125 K-15 in the sub? Duh!!! Lol.

Must have mistaken 125 with the planned 12

^^ Yup...seems to be a typ intended to be 12. Anyways, was thinking that the reactor has been started by now. Guess secondary source harbour trials are still in progress!

What is the comment about circular interior of the sub making it tougher for the instrumentation? Is it different for SSKs?

The inner hull of our other subs could have flatbsides

Could it just be a ploy to keep the snoopers off guard by stating delay in trials, while discreetly having them

Oh! don't worry about the information here ... Nobody knew about Aridaman till the accident at Vizag and then we came to know that at the point of time, the hull of the 3rd submarine was being built!

X-post:

>> 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

20km cannot be true. its like 65000ft. even shourya flies at 40km.

If it flies at lower altitude (20 km) may be it can only go 700 km. At 40 km the range will increase to 1500 km.

Hmm. So, Arihant's reactor is 80MWt, or around 25MWe, so around 22MW shaft hp , approx 28 knots to 30 knots speed.

The K-15 testing is good news. The K4 will be the Dragon Slayer, enabling second strike from stand off distances. Waiting for K4 to get tested so that we have effective deterrence in place.

That's almost 30K SHP! Can we estimate Arihant's tonnage (submerged displacement) from that?

How does this compare to contemporaries around?

Our take on the Los Angeles Class.

That settles the size debate for Arihant.

What about the subsequent subs?

1. Another factual error is this line

The hulls are fabricated somewhere else...

2. Arun_S was claiming in the other forum, almost one year ago that the Reactor was operational.

Its open source that the hulls are being fabricated on the west coast or at least they were for the first 2-3 hulls.

The hulls IIRC were being fabricated by L&T at their shipyard in Hazira not Vadodra.

not just hull but reactor vessels and many other commercial projects of that nature involving large vessels.

And they have been putting the hulls on a barge and pulling them all across kanyakumari to vizag.

Now L&T has this HUGE shipbuilding yard just north of Chennai. Production of future hulls might shift there.

Don't think so. The Navy took over the HSL yard, right next to it's own facilities at Vizag. That has a covered yard about the right size for Nuke subs. I think it will shift there , with components and hull sections etc, still being built by L&T at other locations.

HSL I think was supposed to build one Scorpene or the next line of conventional subs.

This facility north of Chennai is very recent. A lot of things have been happening since a very long time at a lot of places

K

Thats right. But the production should move to the east coast now with L&T's new shipyard there.

One thing to note here is the immediate construction of two more submarines. This points to the fact that the Arihant has huge proven Russian inputs. No wonder the cost of the Viki escalated so much

EXACTLY

L&T's Kattupalli facility, just north of Ennore in Chennai awaits orders for complete warship building orders (including submarines). The debate within the Navy is still going on about outsourcing to Indian firms, I sippose.

^^ IIRC, Ajai Shukla had reported sometime back( If i recall correctly) that L&T had big hopes on that yard for getting sub orders( MoD inspected the yard and found it OK also) but they came to know it wont happen and PSU yards will get it.

Need to dig out that article.

PSU yards will be "high level sikular system integrators" and "control/punish/manage/guide" the pvt yards to do most of the work while sitting on guaranteed profits and kickbacks from vendors of consumables.

thats the best I can hope for - big modules outsourced to pvt yards.

Read more at: http://indiatoday.intoday.in/story/sea- ... 36252.html

I think it suggest that K-15 test in coming months will happen through INS-Arihant...

^^I hope the retards remember this the next time they bellyache about delays in the ATV program.

K15 to be test fired from the INS arihant next month.

Scientific Advisor to Defence Minister and DRDOChief V K Saraswat said this time the test of K-15 would be from the pontoon which has been positioned at a location off the Andhra Pradesh coast. “But the test planned next year will be definitely from Arihant-class submarine.The platform is being readied at the shipyard for the maiden trial,” he told this paper over phone.

Initially announced to be ready for induction by year-end, the submarine is now expected to be inducted in the Navy by 2014 because it has to complete at least two or three trials before deployment. India has plans to build four more submarines of this class. “The new generation nuke powered submarines will help India become a credible nuclear deterrent. Once inducted, the country will achieve its goal of possessing the nuclear triad of having three nuclear arms platforms – land, air and undersea,” said a scientist.
May someone post the link from idrw.

http://newindianexpress.com/states/odis ... 384357.ece

INS Arihant is about 120 metres long and its displacement goes up to 7,000 tonnes. It can be armed with 12 vertically launched missiles like K-15 and 533-mm torpedos at a time. The indigenously developed K-15 missile is about 10 metres in length and about one metre in diameter. Its launch weight is about 10 tonnes.


When did Arihant become 120 m long and 7000 tonnes in displacement. It was supposedly 112 m and 6000 tonne.

Maybe submerged and surfaced displacement. But who knows the actual figures...

120m and 7000t is just 10m and 500t short of the retired french Le redoubtable class and UK resolution class.
these carried 16 and 12 ICBMs respectively. these were subs built in the late 60s onward.

for that size the claimed 4 tubes only would be hard to believe.

imo a loadout of atleast 8-12 full caliber K4 missiles would be minimum needed to justify the price and efforts. if not in Arihant then atleast her sister ships.

Well this 12 -k-15 and 4 -K-4 is psdy -ops. can you you put BM side by side in a Hatch like CM's. I doubt it.

If we say it will have 12 k-4 in 3 years time, the powers in the world will be a bit too prepared before we are ready. so lets keep these things under wraps.

A rotating launcher maybe?

the magazine illustration had 3 smaller sub-caliber tubes inside the big tube.
this is how they pack 4xESSM inside a 1xSM2 tube as well - albeit there its all rectangular cross section I think.


http://www.baesystems.com/cs/groups/pub ... 48x421.jpg
http://navy-matters.beedall.com/images/vls.jpg