Indian Naval Discussion

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srin
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Re: Indian Naval Discussion

Post by srin »

Philip wrote:There is a recent debate going on in the US about the CNS wanting "bomb trucks" instead of very costly "luxury cars" with respect to US naval aviation.It is a far sighted policy when UCAVs are on the horizon and the erosion of the advantage of the stealth factor with the advent of new anti-stealth sensors and newer air defences.This view of thought should be carefully examined not only by the IN but also by the IAF with respect to the MMRCA.In the naval context,expecting "luxury" subs with all the bells and whistles instead of simple robust reliable subs that can "do the business".What the IN should've done some time ago was to take one its many Kilos,as so many have gone to Russia for upgrades,and added a Brahmos VLS plug. The sad fact is that even by 2020 with our new Scorpenes,they will still possess vastly inferior subsonic Exocet anti-ship missiles,when the hypersonic version of Brahmos would've been tested! As I've said earlier,the priority for our conventional subs is to find a platform asap that can accommodate Brahmos.It is the key advantage that the IN has over its rivals at the moment.
Can a "VLS plug" be installed without tearing open the hull ? I searched around and found an image right on BR site - clicky. That seems to require a major surgery on the hull. Though it looks more like Amur 950 than a Kilo.

I don't have anything against Brahmos, but let's face it - while great for frigates and destroyers, great for 8x8 trucks, Brahmos as it exists is too huge, too wide and too heavy to be considered for aircraft and cramped subs. Even the Sukhoi can carry a measly single missile, and that too after strengthening.

Even the Amur 950 of which you are a fan, has 10 VLS tubes that can't accomodate more than a Klub. See the specs and pics from the manufacturer here.

Unless we get a mini-brahmos that is smaller (VLS hump won't cause cavitations), can be launched from 533mm TT (making it physically compatible with any sub) and light (to be launched from Mig-29K or P-8Is), I'd be very sceptical that IN would opt for it. Till then, we will have the kichdi of Klubs, Exocets, Harpoons and Sea Eagles.

As far hypersonic brahmos - we don't know the dimensions or the shape or the weight or the range either. So, it is too premature to even talk about the platforms that can use it.
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Re: Indian Naval Discussion

Post by Austin »

Philip , Kilo was never designed from ground up as modular submarine where you can cut it add another module and join together. Hence adding Brahmos Module or even an AIP on any Kilo including the most modern 636M is impossible , reason why you dont see any recent Kilo deal with Vietnam or for Russian Navy not having any kind of VLS module or AIP.

Only the Amur Class has been designed as modular submarine with various displacement and size from 900 T to 2700T reason Amur has been advertised with AIP and VLS module , the 2nd and 3rd Lada class being built for Russian Navy comes with AIP module but even the most advanced variant of 636 being built for RuN does not come with any.

You can judge for your self the whole idea of Kilo with Brahmos is just a marketing gimmick :)
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Re: Indian Naval Discussion

Post by tsarkar »

Thanks, John
srin wrote:Though it looks more like Amur 950 than a Kilo.
You're right, Kilo doesnt have vertical fin.
srin wrote:we will have the kichdi of Klubs, Exocets, Harpoons and Sea Eagles.
What's wrong with a diversified mix? The prevailing sentiment on BR is standardize, influenced by US literature. But what works for US may not work for India.

US forces since 90's want to run more like corporate business. Their weapons are state of the art and generations ahead of others, hence are prohibitively expensive to develop & manufacture. So to lower costs, they standardize. Same for some shrinking Western European forces.

In India, we do not get state of the art weaponry. So standardizing on one weapon type will make it simple for the enemy to develop countermeasures. Multiple weapons (Klub/Brahmos) will make the enemy's life difficult. The number of weapons required in India are much lessor than that required by US for global domination, hence we dont save cost on buying batches of, say, 100 BrahMos or Klub or Harpoons. We have manpower to operate & maintain all these weapon types. Indians love learning & dont suffer from learning disorders epidemic in US.

Its like a batsman knowing only one strokeplay vs one knowing multiple.
srin
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Re: Indian Naval Discussion

Post by srin »

tsarkar wrote:Thanks, John
srin wrote:Though it looks more like Amur 950 than a Kilo.
You're right, Kilo doesnt have vertical fin.
srin wrote:we will have the kichdi of Klubs, Exocets, Harpoons and Sea Eagles.
What's wrong with a diversified mix? The prevailing sentiment on BR is standardize, influenced by US literature. But what works for US may not work for India.

US forces since 90's want to run more like corporate business. Their weapons are state of the art and generations ahead of others, hence are prohibitively expensive to develop & manufacture. So to lower costs, they standardize. Same for some shrinking Western European forces.

In India, we do not get state of the art weaponry. So standardizing on one weapon type will make it simple for the enemy to develop countermeasures. Multiple weapons (Klub/Brahmos) will make the enemy's life difficult. The number of weapons required in India are much lessor than that required by US for global domination, hence we dont save cost on buying batches of, say, 100 BrahMos or Klub or Harpoons. We have manpower to operate & maintain all these weapon types. Indians love learning & dont suffer from learning disorders epidemic in US.

Its like a batsman knowing only one strokeplay vs one knowing multiple.
If every missile is versatile enough to be used on every platform, then this would be fantastic. That will mean we're not dependent upon any single vendor.

However, our situation is that we can't mix and match which is far worse than standardization.

P-8Is and Jaguars use Harpoons
Mig-29K uses Klub and Uran
Kilo uses Klub
Akula uses Klub
Scorpenes use Exocet
Jaguars use Sea Eagle
Bears use ??

That is the core problem - missiles aren't vendor agnostic, nor are platforms arms-agnostic.
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Re: Indian Naval Discussion

Post by AbhiJ »

http://www.larsentoubro.com/lntcorporat ... 857&sbu=75
A launch system for BRAHMOS ASM is capable of launching eight canisterized missiles in vertical mode. The system only comprises the launcher structural and shock absorption systems, associated hydraulic systems for hatch operation and the integrated fire control systems (FCS). Also includes a system for loading & unloading of canister from jetty to the launcher and vice versa.

The FCS developed for the BRAHMOS inclined launcher has been successfully proven on R-Class ships of Indian Navy. The modular design of this FCS facilitates adapting this system to different missile clusters and classes of platform.
Which other missiles?
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Re: Indian Naval Discussion

Post by Philip »

Look,if you've read old history of the Kilo,there have been old proposals to insert a plug for what the Russians call a "missile complex".I think I've also been misunderstood as we have lost a lot of time for a trials sub for the missile.At regular intervals,oir old Kilos have been going to Russia for refits and the ability to launch Klub.One sub at least could've been spared as we have 10, as a trials sub for the missile,as there is a huge difference launching from a pontoon and launching from a stealthy sub ,moving at different depths underwater.In any case,the design for an Amur/Lada class sub with Brahmos has been available for some time and now that the sub has been cleared for production in Russia,after a long trials period of a few years,the option should be closely examined.I posted the bit about the USN's CNS wanting "bomb trucks instead of luxury cars", to show that even in the world's most powerful navy,the issue of an available cost-effective platform which can deliver the goods at reasonable cost is preferable to a "luxury" platform with every possible bell and whistle,making it hideously expensive which also allows for far fewer numbers to be acquired.

Secondly I fail to see what difference there is between a launch of ANY missile from a sub underwater as far as detection by LRMP aircraft is concerned.True ,once a lunch is made,the radius of detection become smaller,but subs with the range of Brahmos,Tomahawak,etc.,can easily fire a salvo of missiles and rapidly move far from the launch point.As of now,no ASW LRMP aircraft has stand-off anti-sub weaponry in the "hundreds of KMs".Either depth charges,conventional or nuclear,or anti-sub torps-that too with wing kits if launched from a P-8,which have toi launch them from higher alts.,a drawback with this ASW platform,have to be launched within torpedo range and enndurance.It is only now that the French have developed an ultra-endurance torpedo which can loiter for a few hours and make repeated attacks after initial ones have failed due to countermeasures.

The beauty of a conventional sub armed with Brahmos is that the sub can stay in safe littoral waters close to the Indian coastline and yet launch its missiles to hit targets-in the Paki context.
srin
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Re: Indian Naval Discussion

Post by srin »

Philip wrote:Look,if you've read old history of the Kilo,there have been old proposals to insert a plug for what the Russians call a "missile complex".I think I've also been misunderstood as we have lost a lot of time for a trials sub for the missile.At regular intervals,oir old Kilos have been going to Russia for refits and the ability to launch Klub.One sub at least could've been spared as we have 10, as a trials sub for the missile,as there is a huge difference launching from a pontoon and launching from a stealthy sub ,moving at different depths underwater.In any case,the design for an Amur/Lada class sub with Brahmos has been available for some time and now that the sub has been cleared for production in Russia,after a long trials period of a few years,the option should be closely examined.I posted the bit about the USN's CNS wanting "bomb trucks instead of luxury cars", to show that even in the world's most powerful navy,the issue of an available cost-effective platform which can deliver the goods at reasonable cost is preferable to a "luxury" platform with every possible bell and whistle,making it hideously expensive which also allows for far fewer numbers to be acquired.

Secondly I fail to see what difference there is between a launch of ANY missile from a sub underwater as far as detection by LRMP aircraft is concerned.True ,once a lunch is made,the radius of detection become smaller,but subs with the range of Brahmos,Tomahawak,etc.,can easily fire a salvo of missiles and rapidly move far from the launch point.As of now,no ASW LRMP aircraft has stand-off anti-sub weaponry in the "hundreds of KMs".Either depth charges,conventional or nuclear,or anti-sub torps-that too with wing kits if launched from a P-8,which have toi launch them from higher alts.,a drawback with this ASW platform,have to be launched within torpedo range and enndurance.It is only now that the French have developed an ultra-endurance torpedo which can loiter for a few hours and make repeated attacks after initial ones have failed due to countermeasures.

The beauty of a conventional sub armed with Brahmos is that the sub can stay in safe littoral waters close to the Indian coastline and yet launch its missiles to hit targets-in the Paki context.
Phillip - you've completely ignored all the points about problems that the physical dimensions of Brahmos poses to SSKs. Look at the Brahmos length and look at the length of VLS launchers on Amur (go the manufacturer's site if you don't believe me) - do you think they fit ?

And why would we go for extensive hull modifications just to put Brahmos on Kilos and Amurs when you can already put Klubs on them ?
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Re: Indian Naval Discussion

Post by Aditya G »

Image

F-22P frigate in Kochi? No PN is not the only navy in our vicinity ....

BNS (Bangladesh Naval Ship) Bangabandhu entered Kochi on 2nd November. The modern frigate and veritably the Flag Ship of Bangladesh Navy was on en route to Doha to participate in Exercise Ferocious Falcon. A host of professional and social interactions were scheduled between the two Navies on the occasion which included sports fixtures and mutual visits.

This nifty frigate was built in Korea and is equipped with:

- OTOMAT AShM (possible choice for IN's new tender)
- FM-90 SAMs (Same as F-22P frigates in PN)
- Otobreda 76 mm gun
- Otobreda 40 mm CIWS - based on the basic Bofors L70 cannons

Propulsion is CODAD arrangement similar to Project 28.
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Re: Indian Naval Discussion

Post by koti »

srin wrote:Jaguars use Sea Eagle
Bears use ??
I guess it will be Kh-35U. It can also have 533mm topedos and ASuW rockets. I believe the Airborne version of Brahomos will also be adopted on this.
Link
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Re: Indian Naval Discussion

Post by Rupak »

Hi Aditya
Bangabandhu is a Korean design based on the Ulsan class by Daewoo. But you are quite right about other littoral navies.
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Re: Indian Naval Discussion

Post by Singha »

Afaik our bears have no asuw weapons and are kitted only for asw.
Our mays do carry two sea eagles per a pic i think the late b harry posted once.
P8i will have mk50 lwt and harpoons.
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Re: Indian Naval Discussion

Post by Austin »

The IL-38 upgraded with Sea Dragon configuration can carry Air Launched Kh-35 and there are video of it launching it on U Tube.

The Bears after its maintenance upgrade were suppose to get similar capability but not sure if they got one as they dont have SD suuite
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Re: Indian Naval Discussion

Post by Aditya G »

Well there is a picture of bear with sea eagle shown as part of the arsenal. If il-38 can launch it then why not the bear?
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Re: Indian Naval Discussion

Post by Philip »

The reason is that the newer Brahmos,with improved guidance,etc.,also has a better range,openly said to be around 500km,that too supersonic all the way.Klub is a great missile,but is supersonic only during its terminal phase.Brahmos is a far superior system.Klub is still very relevant to our Scorpenes and U-209s-they must be configured to be able to fire Klub from their tubes. Warships like our Kora class and upwards like the early Delhis and other frigates,should also be reconfigured to carry either Klub or Brahmos.One may need more than one missile strike using Klub to sink a major warship.In any case the IN has indicated in past report that for the second line it wants an AIP sub able to carry Brahmos.
tushar_m

Re: Indian Naval Discussion

Post by tushar_m »

amur 650 seems to have ideal package

http://en.wikipedia.org/wiki/Amur_class_submarine

Displacement 1,065/ ?
Length (meters): 56.8
Beam (meters): 5.65
Speed submerged 20
Depth (meters): 300
Endurance (days): 30
Complement: 19
Armament: 4 533mm tubes, 16 torps., missiles, mines total.
10 vertical silos for BrahMos missiles

price tag of $100,000,000

we can go for 10 such subs to improve the declining numbers & it does pack a powerful punch.just think....................
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Re: Indian Naval Discussion

Post by Singha »

a sub whose beam is smaller than the brahmos length, only 1000t, costs $100 mil claims to be equal to that of a Kilo more than 2 times as large?
it needs to be specified if this 1000t is with or without the brahmos system, how it will affect the weight and more importantly cough cough
- how LONG can it maintain this 20knot submerged speed, how LONG it can go at its economical speed submerged and what is this speed, WHERE is the AIP, what is its economical snorkel speed and how long is the range.

the endurance figure of 30 days is meaningless without such details.

AMUR class is a failure, even the RuN have abandoned it.
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Re: Indian Naval Discussion

Post by Philip »

Singha,sorry,the RUN have decided to build Amur/ladas after years of improvements and have already sanctioned funds for the same.In an issue of the F mag some months ago,a Russian analysts in an article,said that the Amur is being offered to the IN for the second line.Excerpts below:

http://www.russiadefence.net/t1692p30-l ... ote]Russia is ready for Project 75(I) competition
By Vladimir ‘Vovick’ Karnozov

FORCE September 2012

Moscow: India continues to buy a lot from overseas weapon manufacturers, but in the past few years, the focus has been shifting to license production and technology offsets. The process of selecting a specimen, which can be copied locally, is now more guarded. In such a situation, it is best for collaborators to have their products ordered by the armed forces of their home country.

Seen from this perspective, chances of the Central Design Bureau for Marine Engineering ‘Rubin’ and its industrial partners have gone up, especially, after the Russian ministry of defence ordered quantity production of Project

955/A nuclear-powered underwater cruisers, and Project 636.3 and Project 677 diesel-electric submarines. Export version of the Project 677, the Amur 1650, is on offer in India in the ongoing Project 75(I) competition for six units. This summer saw two more Rubin-designed ships become a reality. On 30 July 2012 Russia’s President Vladimir Putin travelled to Severodvinsk to lay down the foundation of Duke Vladimir (named after the Kievan Rus ruler whose reign extended from 978 to 1015 AD) – the first in the series of five Project 955A underwater cruisers, coming after three Project 955s which have already been built. On August 17, Russian navy commander Admiral Victor Chirkov led a similar ceremony in St. Petersburg for the Old Oskol, a third in the series of six Project 636.3 diesel-electric submarines for the Black Sea Fleet.

Speaking to the media on these occasions, both Putin and Chirkov promised more orders for local shipbuilders. Putin said that 4.44 trillion roubles will be spent on construction of new ships for the Russian navy’s “multi-purpose groupings of general use”, adding that one-third of that sum will be provided in the next five years. Another important statement made by Putin on July 30 was: “By 2020, the navy will take delivery of 51 surface combatant and 16 multi-purpose submarines.”

According to the Armament Program 2011-2020, during the next eight years, the Russian Navy shall receive eight Project 955/A strategic underwater cruisers; eight Project 885 fast-attack submarines; 15 frigates and 35 corvettes. This will boost the share of modern equipment in the navy’s arsenal to 30 per cent by 2016 and further to 70 per cent by 2020. Putin stressed the need to equip new ships with modern long range rocketry. “It is exactly the weaponry that always determined power and worthiness of combat ships in wartime,” he said.

Priorities of the Russian Navy

Chirkov stated that the naval ship-building programme 2011-2020 “will be materialized completely.” In particular, the navy expects 14-20 non-nuclear submarines, most of which will be from the stable of Project 636.3 and 677. The admiral said, “We will go forward without changing earlier decisions. Instead, we will work so as to unify ships of various types and upgrade them as necessary so as to achieve a greater degree of cross-type unification, and ensure the newly launched ships carry state-of-the-art weaponry.”

Three years ago, the Russian Navy placed order for six Project 636.3 submarines. First of them, the Novorossiysk, was laid down at the Admiralty Shipyards in St. Petersburg in August 2010 (commissioning expected in late 2013) and the second, the Rostov-upon-Don, in November 2011. They have standard displacement of 2,350 t, underwater speed up to 20 knots, endurance of 45 days and compliment of 52.

Compared to Project 877 and ships which are already in service of the Russian Navy such as the exportable Project 877EKM and Project 636, the new Project 636.3 “is more stealthy, with new acoustics systems and means of communications. Besides, she has a higher degree of automation and newer weaponry. The new submarine is highly capable, and can stay in service for a few dozen years. The most important thing for us about these submarines is that with them the navy can go into the next decade with state-of-the-art technologies and capabilities.” Chirkov added that the Project 636.3 has no equal among western diesel-electric submarines simply because the Russian design has a much more powerful missile system.

With Project 636.3, Chirkov also noticed an improved comfort of the crew. “She has a good mess room, and fairly good living quarters – all this provides a sufficient level of comfort to enable the crews to carry out their tasks not only in coastal defense, but also on an a blue-water mission.”

The Admiralty Shipyards holds contracts for construction of over 12 diesel electric submarines (including six Project 636.1 for Vietnam and six Project 636.3 for the Russian navy). Of these eight are being built.

In the meantime, construction of the Project 677 series had been temporarily frozen after completion of the head vessel (the Saint Petersburg) and putting her into the Russian navy register in May 2010. The reason behind putting this programme on hold was to allow sufficient time for the navy to test the head vessel at sea, and the industry to allocate and fix potential design flaws.

In July 2012, the MoD resumed funding for completion of two earlier-started hulls, the Kronstadt and the Sebastopol. These will be completed with minor changes to the baseline design. “Our (future) plans are based on the assumption that within two years all remaining issues pertaining to (indigenous) AIP (Air Independent Propulsion) will be resolved; we are planning to put the new propulsion system on the third and fourth hulls (of the Project 677),” said Chirkov.

The Russian Navy no longer suffers from problems that affected it several years ago. “We notice a higher degree of interest among young people in joining the navy. This results in more applicants going to the military schools and institutes, and a tougher competition to pass exams and get accepted. Besides, those who serve on submarines of the Northern Fleet and those based on the Kamchatka peninsula are on a contract (not conscripts). This proves that the importance of the navy has gone up in the eyes of the public,” said Chirkov.

Rubin’s New Leader

The popularity of navy is good news for Central Design Bureau for Marine Engineering ‘Rubin’. Speaking to FORCE, Igor Vilnit, who took over as general director in March 2012 from Andrei Diachkov, said, “Rubin will continue to work closely with Sevmash Shipyards in Severodvinsk, which builds Rubin-designed strategic underwater cruisers. “There is a big ship-building programme in place, giving both enterprises a high workload. This requires making right decisions on time regarding submarine development and construction so that governmental orders are completed in the shortest time possible and at the lowest expense.”

Vilnit joined Rubin in 1979 and since then has been involved in many military and civilian programmes of the company. When asked about his priorities as the new head of Rubin, he said the main one was to fulfill, efficiently and on time, the governmental orders for submarines. “There is a huge amount of work to be done. In some cases, it requires innovative approaches. Managing development and assembly of specimens for series production is a challenging task, particularly in the present environment of a market-driven economy and the post-crisis conditions.”

Rubin holds governmental contracts for development of nuclear-powered, diesel-electric submarines and special equipment. Besides, Rubin is working on civil programmes and will expand this activity.

Military technical co-operation with foreign countries is another area that Rubin has been involved in. “Bidding in international tenders, like those in India, gives a good chance to compete face-to-face with European rivals. It is a strong stimulus for further development and improvement,” says Vilnit. While the Russian ship-building industry now enjoys big contracts from the Kremlin, winning a foreign order brings in more money and bigger workload.

Another important priority for Vilnit is to improve Rubin’s team and take timely measures for its support and development. He believes in worthiness of special “social programmes” (complimentary to salaries and wages), from which the company’s employees can benefit, and also the company itself, as such programmes result in a better teamwork and mutual understanding among the employees. The team, he says, is well balanced in terms of skills and age. “It has some long-standing specialists and some young university graduates. Although we have always had people seeking a job at Rubin, nonetheless, we feel a shortage of middle-aged specialists. During the times of Perestroika, less people sought jobs in the defence industry. Rubin, like many other defence enterprises, was less attractive for ambitious university graduates.”

That said, Vilnit insists that the cadre problem is no longer acute for Rubin. “We have enough representatives of the younger generation who have amassed sufficient skills and knowledge through participation in the Project 955 and other projects, including development phase and construction of head vessels. And this secures the future for our enterprise.”

Tech-Savvy

Rubin continues to master computer-aided design technologies. Although the process started 20 years ago, it was a big challenge, and still is. On certain projects the entire documentation package issued by Rubin is completely computerized. “These technologies are not new to us, but we are still mastering and perfecting them.” One of the challenges is to provide ‘a completely digital’ documentation package covering design and development of a vessel, manufacturing, delivery to the customer and a developer’s and manufacturer’s support throughout. This necessitates application of CAD/CAM/CAE, lean manufacturing and logistic support.

The Rubin team has tried many innovative technologies on maritime platforms, a purely civilian activity being developed in addition to the core business. The company started working on it in early 1990s, when military orders ran low. Although the situation has changed, Rubin is not going to give it up. “We started this activity 20 years ago, and have achieved considerable results. Good relations have been established with customers for maritime platforms, as well as overseas and local suppliers of major components. Today, Rubin is the leading company on maritime platforms in Russia,” says Vilnit.

Platforms are a very complex sea objects. “It is very hard to find your niche in a highly competitive environment, and easy to lose it. To stay competitive, you must improve all the time; the market-driven economy requires you to make efforts. It is as though the market is always asking you same old question, ‘are you going to give up’? Rubin shall never give up!” asserts Vilnit.

The company has developed a number of various platforms, and is now shaping one for rotorcraft operations. The work goes under respective contracts from RAO Gazprom fossil fuel giant and is in the course of Russian government’s federal programes for development of advanced civil technologies. The platforms in question may have different applications. For instance, they can facilitate transportation of workers to and from drilling platforms or oil rigs in the open sea. Rubin is also developing a platform with helicopter deck measuring 100x100 metres, which will be able to serve several helicopters at a time and withstand engine-out landings.

Next Generation

As of 2012, the Russian ship-building industry has brought out a fourth generation of submarines (long after after World War II). The line is formed by the Project 955/A strategic underwater cruiser, Project 885 fast-attack and the Project 677 diesel-electric submarines. Lead vessels of all the three classes have been built; now they will undergo sea trials.

So, what comes next? Will Russia work on the fifth generation submarine? Vilnit’s answer is in the affirmative. He notes that the life cycle of a concurrent submarine is normally over 50 years, starting from research and development, and going all the way through construction, operational service and withdrawal of last ship in a series. “In our industry, life cycles are very long, and therefore, from the start we have to think properly of a new design.”

The process of conceiving a next generation warship must be an unbroken chain of small steps forward. Formulating requirements and putting together specification for a next generation warship is “a constant, ever-going process”. It starts with collection and thorough analysis of comments and reports on in-service ships of the current generation, especially lead vessels in a series. “Following this approach, we have been collecting and analyzing data coming from the head ships which belong to the fourth generation, in order to formulate requirements and specifications for the fifth generation,” says Vilnit.

In Russia this work (perfecting components) is being done not only at Rubin and other design houses, shipyards and their vendors, but also by dedicated MoD establishments. In co-operation with the industry and scientific institutes, the MoD runs various R&D programmes aimed at shaping the next generation. This persistent effort helps ship designers create a futuristic image of a ship. “Our design house is always in search of new, advanced solutions. Our industrial partners and vendors are companies specializing in acoustics, radio electronics and weaponry”.

On being asked whether this rather new idea of making silos (vertical launchers) on submarines which are able to fire both ballistic and cruise missiles, will have applications on future submarines of the Russian navy, Vilnit said that weaponry is the main thing about strategic underwater cruisers. Any new quality that the human brain works out must be tried by the designers. Their goal is to blend this new quality into design of the ship so as to ensure that during crisis such as wartime, the strategic cruiser will be able to accomplish her mission effectively. Rubin team works “tirelessly and without breaks” on making its submarines more efficient and combat-capable.

Unification of weapons systems is a trend in modern ship-building. “We have been following this trend,” says Vilnit. In technical terms, unification has some firm footing. “Having understood this, we also need to understand that any given missile cannot be launched from any given silo, not without some preparatory work.” Unification between launch systems is possible through a number of design solutions applicable to various missile types. Unification of components is a direction that Russian submarine designers have been paying attention to.

The former Soviet Union, and now Russia, have produced a number of titanium-hulled submarines. Today, most of Russian titanium output goes to aircraft manufacturers, notably Boeing and Airbus. Do Russian metallurgists produce high-quality titanium in sufficient numbers for the ship-building industry to continue building such ships?

Rubin uses titanium in submarine’s structures. As a construction material, titanium features some very special qualities — it is strong and yet lighter than steel. This metal is harder to work with, and requires welding to be conducted in an artificial atmosphere whereas steel can be welded in the open. Making a submarine involves a lot of welding. Using titanium instead of steel makes the submarine more expensive but gives better performance. “The key question is to reduce manufacturing expenses. This can be achieved through advanced technologies applicable to structures made of titanium,” says Vilnit.

Rubin was responsible for development of the Project 685 deep-water fast-attack submarine. One such vessel, the K-278 Komsomolets, was built at Sevmash and served with the Soviet navy from 1984-’89. Having spent 450 days at sea, she demonstrated her ability to operate at a depth of 1,000 metres and more. “Rubin continues to work on the theme of titanium application in ship-building. We seek for new solutions that would be implemented in future ship designs. This is because the titanium has some good qualities that would give our future ships some advantage,” says Vilnit.

The Russian metallurgists are ready to supply titanium to local ship-builders in quantities sufficient to make submarines. “We meet regularly and talk,” said Vilnit, cautioning that one should not generalise and keep in mind that titanium alloys for aviation and those for shipbuilding are ‘world apart in their qualities’.

Diesel-Electric Submarines

Major demand for Russian diesel-electric submarines helped the Admiralty Shipyards to streamline their production. So far, 55 Rubin-designed Kilo-class submarines (Project 877/E/EKM/636) have been completed, and more are under construction. Normally, construction cycle for a Project 636 is three years.

In addition to 23 Kilo-class ships built for the Soviet navy, the local customer has recently placed order for six more, in customized version Project 636.3. This improved design has incorporated many innovations, some of which have been tried on exportable examples built for China, Algeria and Vietnam. Besides, the navy ordered a considerable number of new or improved onboard systems. The main reason behind the Russian navy’s decision to order six Project 636.3 ships was the high reliability of the baseline submarine. That apart, it has low acquisition costs and requires little maintenance.

These factors may influence certain overseas customers, including India, to decide in favour of buying an additional quantity of improved Project 636 hulls. This may provide a worthwhile ‘stop-gap’ solution before next generation submarines become available in sufficient numbers.

The Project 677 and its export derivative Amur 1650 are meant to supersede the Kilo class. Alexander Arsentiev leads this work in the capacity of chief designer; he reports to Igor Molchanov, recently appointed the head of Rubin’s Diesel-electric group.

Vilnit is thankful to Admiral Chirkov for his strong support to the Project 677. First, he approved of the improved design which takes account of sea testing already made on the head vessel. Second, the Admiral has made important statements recently about the Russian navy resuming funding for construction of series hulls. After these statements were made, “certain overseas customers approached us again,” said Vilnit. Today, Rosoboronexport and the Federal Service for Military Technical Cooperation along with foreign countries are interacting with these customers.

Meanwhile, lead vessel, the Saint Petersburg, continues her sea trials so that design flaws and manufacturing deficiencies, if any, can be discovered on time and fixed before series production begins. “Any new piece of advanced machinery requires careful attention in the beginning,” says Vilnit. At the time we spoke, the Saint Petersburg was at Baltic Fleet base in Baltyisk, undergoing preparations to depart for the Arctic waters where additional testing in oceanic environment shall take place.

Vilnit told FORCE that the Admiralty Shipyards resumed work on the Kronstadt and the Sebastopol. “They will be completed according to the improved design already available from Rubin.”

The Amur 1650 is on offer in India with AIP based on fuel cells and electrochemical generator employing reformation of diesel fuel to produce hydrogen. “Adding an AIP results in longer duration of underwater patrol. From a builder’s perspective, this requires relatively short amount of additional work to be done on a submarine, as an additional section (containing AIP) is inserted into her hull.” Vilnit says that both versions, the baseline with no AIP and the newer one with it, are on offer. “We will keep both versions on offer, to give our customers a choice. Difference in performance comes at a price.”

Rubin continues working on the Ion-Lithium battery for submarine applications. Such batteries are already used widely on the consumer market, but are not yet ready for naval service. Manufacturers are yet to achieve certain parameters — including electric capacity and specified parameters of the electrical current in discharge mode. The Ion-Lithium battery promises an increase in time of underwater low-speed patrol by 50 per cent, and in duration of full speed underwater cruise by three times.

The Russian Navy commander has recently confirmed his interest in speeding up this work and promised more funds to complete it. Rubin specialists have made “good progress recently”. Vilnit adds, “We already have a full scale specimen of such a battery. I believe that in less than two years we can get our Ion-Lithium battery installed on a submarine and be ready for mass production.”

The Indian Connection

One of the success stories of Indo-Russian co-operation is building 10 Project 877EKM submarines for the Indian navy (Sindhughost class) and then keeping them up-to-date and seaworthy. Last in this series, the S65 Sindhushastra, was built as per an improved design, with the Club-S missile system (at that time even the Russian navy did not have it).

Starting in 2000, two Indian submarines underwent modernisation at the Admiralty Shipyards and four at Zvezdochka in Severodvinsk, during which they were equipped with the Club-S. In June 2012, the last of the submarines to be upgraded in Russia, the S63 Sindurakshak, was launched on water after repairs. She is due to rejoin the Indian Navy by the year-end. Three more Sindhughost class submarines are planned to undergo modernisation at Visakhapatnam under the supervision of Rubin and Zvezdochka advisors.

Russia is offering a second refit and modernisation programme. It can add from five-seven to 10 years of lifetime to these ageing submarines. The INS Vargi of Rubin’s Project 641 served for 36 years until being finally de-commissioned in 2011. Should the Indian side accept this offer, it may prove a timely and cost-effective measure to bridge the gap until induction of next generation submarines.

Defense procurement procedures require collaborators from foreign countries to work closely with the domestic manufacturers through massive offset programmes. In the case of Project 75(I), offset is said to be over 30 per cent of contract value. Meeting this requirement is quite a challenge. And yet, the Russian bidder — the Amur 1650 is officially offered by Rosoboronexport state arms vendor — is optimistic about it.

Vilnit is also optimistic. “I believe we can make it. We have been talking to both government organisations and privately-held companies so that we can use Indian-made components. As far as Rubin is concerned, we can also offer something in offset to our Indian partners. India is interested in latest technologies in design and development of modern naval and maritime equipment. We can offer something in this sphere,” he says.

PS:Fuel cell details for the same.Same link.
Russia Tests Hydrogen-Fueled Submarine

Russian Navy is about to test submarine B-90 Sarov with first Russian-made hydrogen-fueled powerplant by the end of 2012, writes Izvestiya referring to a source in defense ministry. In prospect, such powerplants can be mounted on Project 677 Lada and Amur-1500 submarines. Similar plants are used in German submarines U-212 and U-214.

According to the source, traditional diesel-electric subs like Varshavyanka-class ones (Project 636) use batteries supplying the electric motor. If the battery is discharged, submarine must surface and start diesel engines to charge the batteries. That makes subs vulnerable. In hydrogen-fueled engines, electric motors are supplied by hydrogen fuel cells.

The new Russian-made engine is an air-independent powerplant. Like other engines of this type, it considerably increases submerged endurance of non-nuclear subs. In addition, it reduces noisiness level. According to the source, Russian non-nuclear submarines powered by air-independent plants would compete with German diesel subs.

In July 2012, Russian Navy Commander-in-Chief Admiral Viktor Chirkov decided to resume construction of Project 677 diesel-electric submarines suspended by the ex-commander Vladimir Vysotsky. Earlier, the Navy was not satisfied with characteristics of the new air-independent powerplant for Project 677, it needed improvement.

So far, Russia has built only one Project 677 submarine named St. Petersburg. She is passing trials at the time. Other two subs of this class, Kronshtadt and Sevastopol are being built. Although their construction was suspended, it can be resumed if the hydrogen powerplant is successfully tested, reports Izvestiya.

B-90 Sarov is an experimental submarine, the only one built under Project 20120 in 2008. The sub's hull is a Project Sargan experimental submarine laid down late in 80's but not completed due to underfinancing. Sarov displaces about 4,000 tons. The submarine is used for tests of new weapons and equipment.
[/quote]
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Re: Indian Naval Discussion

Post by Misraji »

^^^
In July 2012, the MoD resumed funding for completion of two earlier-started hulls, the Kronstadt and the Sebastopol. These will be completed with minor changes to the baseline design. “Our (future) plans are based on the assumption that within two years all remaining issues pertaining to (indigenous) AIP (Air Independent Propulsion) will be resolved; we are planning to put the new propulsion system on the third and fourth hulls (of the Project 677),” said Chirkov.
:-?

--Ashish
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Re: Indian Naval Discussion

Post by Shrinivasan »

Misraji wrote:^^^
In July 2012, the MoD resumed funding for completion of two earlier-started hulls, the Kronstadt and the Sebastopol. These will be completed with minor changes to the baseline design. “Our (future) plans are based on the assumption that within two years all remaining issues pertaining to (indigenous) AIP (Air Independent Propulsion) will be resolved; we are planning to put the new propulsion system on the third and fourth hulls (of the Project 677),” said Chirkov.
Ashish, are the Subs for IN? if not why is this posted in the IN Dhaga?
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Re: Indian Naval Discussion

Post by Pratyush »

The problems will be solved once, the suckers of the world put up hard earned cash to solve the problem. No points for guessing who that will be.
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Re: Indian Naval Discussion

Post by srin »

Thanks for posting the link.

So, they are offering Amur 1650 and not Amur 950 - so bye-bye VLS dreams ! bye-bye Brahmos dreams !
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Re: Indian Naval Discussion

Post by srin »

Misraji wrote:^^^
In July 2012, the MoD resumed funding for completion of two earlier-started hulls, the Kronstadt and the Sebastopol. These will be completed with minor changes to the baseline design. “Our (future) plans are based on the assumption that within two years all remaining issues pertaining to (indigenous) AIP (Air Independent Propulsion) will be resolved; we are planning to put the new propulsion system on the third and fourth hulls (of the Project 677),” said Chirkov.
:-?

--Ashish
Good catch ... and what's more - it costs extra !
The Amur 1650 is on offer in India with AIP based on fuel cells and electrochemical generator employing reformation of diesel fuel to produce hydrogen. “Adding an AIP results in longer duration of underwater patrol. From a builder’s perspective, this requires relatively short amount of additional work to be done on a submarine, as an additional section (containing AIP) is inserted into her hull.” Vilnit says that both versions, the baseline with no AIP and the newer one with it, are on offer. “We will keep both versions on offer, to give our customers a choice. Difference in performance comes at a price.”
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Re: Indian Naval Discussion

Post by Misraji »

Shrinivasan wrote:Ashish, are the Subs for IN? if not why is this posted in the IN Dhaga?
Not me, Sirjee.
I just happened to be the unlucky one to read through that entire article where-as it could have been summed up in one line ... :(

--Ashish
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Re: Indian Naval Discussion

Post by srin »

Shrinivasan wrote:Ashish, are the Subs for IN? if not why is this posted in the IN Dhaga?
Amur 1650 is candidate for Project 75I. And read the other discussions on Kilos and Amurs above. So relevant and in context with IN.
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Re: Indian Naval Discussion

Post by SaiK »

So, on the P8-I (fms routed), hope do they have prescribed and detailed calendar now available from MoD/GoI/GOTUS inspection regime visits. What are the plans or provisions that all critical mission data is only available for IN and nothing for GOTUS?
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Re: Indian Naval Discussion

Post by arun »

Goa Shipyard Ltd. (GSL) built Naval Offshore Patrol Vessel (NOPV) Saryu to be commissioned today:

INS Saryu to be commissioned on Monday
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Re: Indian Naval Discussion

Post by SSridhar »

Navy Divers Reach New Lows - The Hindu
The Navy’s saturation divers, often referred to as ‘aquanauts’ given their underwater exploits, are on a high having hit a new low when they bettered their own national record by diving to a depth of 257 metres some 35 nautical miles off Kochi on January 9.

On Saturday, Lieutenant Malkeet Singh along with clearance divers Mukesh Kumar, BS Bora, Rithesh Kumar, M. Kumar and Satender Sharma emerged from the Deck Decompression Chamber (DDC) aboard the Navy’s only submarine rescue and diving support vessel INS Nireekshak after completing the mission that lasted 12 days and 18 hours.

Month-long preparation

The divers, after a month-long preparation involving lessons in first aid, had entered the DDC on January 7 and were saturated, using a mix of helium and oxygen, for the desired depth in a staggered fashion so as to avoid high-pressure health hazards.

Once they acclimatised themselves to the targeted depth, the DDC was mated to the submersible diving capsule, ‘Bell’, which was subsequently lowered undersea through a ‘moon pool’ on the ship’s deck.

The ‘Bell’ sports an umbilical chord through which breathing gas and hot water to keep the divers warm are supplied. It also has two-way communication facility.

At depths ranging from 250 to 257 metres, Lt. Singh and divers Mukesh Kumar and Bora swam out in full diving gear to accomplish the daunting feat in freezing temperatures. It took eight days to decompress the team back to atmospheric pressure.

The deepest dive so far had been 233 metres undertaken by Nireekshak’s divers in 2011.

Inside the monotonous decompression chamber (the ship has one in stand-by, too), the divers do a lot of reading, take tests to revise their theoretical understanding of the specialised field, and watch films or listen to music relayed to them.

Scrambled speech

“As high-pressure makes their speech, which comes with a heavy nasal twang, almost scrambled, descramblers are used at the control room to communicate with them. We also provide them slates for jotting down what they want to say. They are on round-the-clock monitoring… We did a bit of experimentation this time by offering them a keyboard and mouse remotely linked to a computer outside. While this worked, we have to be careful in using electronic gadgets inside as batteries have hydrocarbons which can explode under pressure,” said Commander Sandeep S. Sarna, Commanding Officer of Nireekshak.

He pointed out that setting a new diving frontier was significant for the Navy in view of the ship’s tasks of salvage and submarine rescue operations.

Sickness

Deep sea diving can only be undertaken by specialist saturation divers. “Water pressure increases as you go down. For instance, at a depth of 250 metres, the pressure is 26 times more than the atmospheric pressure, where chances of nitrogen narcosis and other decompression sickness can prove lethal. This is what makes saturation diving so crucial,” Lieutenant Commander Ashish Jaitly, Nireekshak’s Diving Officer, who coordinated the mission, said.

Retrofitted with a dynamic positing system which is key to submarine rescue and extending life-support to submarines in distress, Nireekshak has carried out many salvage operations, among which was the recovery last year of fishing boat Don-1, which sank off the coast of Kerala following a collision with merchant vessel Prabhu Daya.

A few months ago, it took part in a submarine rescue exercise alongside the US Navy. While Nireekshak’s submarine rescue capability (deployment of its submarine rescue capsule) has a depth ceiling of 150 metres, it is designed to perform salvage and rescue operations up to 300 metres underwater.

The specialised vessel is now slated to take part in submarine rescue operations off Mumbai in February.
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Re: Indian Naval Discussion

Post by Aditya_V »

arun wrote:Goa Shipyard Ltd. (GSL) built Naval Offshore Patrol Vessel (NOPV) Saryu to be commissioned today:

INS Saryu to be commissioned on Monday
From the link
The ship has the capability of anti-submarine warfare and can switch from benign to offensive role as and when the situation demands. Following the 26/11 terror attacks, the Navy was given additional responsibility of coastal security apart from its blue water engagements.
Weighing around 2,200 tonnes, the OPV has a complement of eight officers and 105 sailors and can carry a helicopter, which could either be a “Chetak” or an advanced light weight helicopter.
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Re: Indian Naval Discussion

Post by member_24146 »

INS Arihant (ATV-1) at Vishakhapatnam, Andhra Pradesh, India:
Sattelite Images:

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member_24146
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Re: Indian Naval Discussion

Post by member_24146 »

vipulmb wrote:INS Arihant (ATV-1) at Vishakhapatnam, Andhra Pradesh, India:
Sattelite Images:

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Posting BBcodes correctly but still images not appearing. I wonder why.
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Re: Indian Naval Discussion

Post by PratikDas »

One can copy the links when quoting the above message for a reply. Paste the links into browser and enjoy. No idea if its Arihant though. The roof structure is like a bikini suit. Top and bottom protected onlee.
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Re: Indian Naval Discussion

Post by member_24146 »

PratikDas wrote:One can copy the links when quoting the above message for a reply. Paste the links into browser and enjoy. No idea if its Arihant though. The roof structure is like a bikini suit. Top and bottom protected onlee.
Hans M Kristensen (FASdotORG) published similar pictures in 2012. Taken from the same spot-place.

Here it is:
Image
member_24146
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Re: Indian Naval Discussion

Post by member_24146 »

IAC-1 at Cochin Shipyard Limited, Kerala, India:
Sattelite Images:
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If images not appears then copy-paste the image links in browser to open it.
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Re: Indian Naval Discussion

Post by Aditya G »

She is a beauty!

http://livefist.blogspot.in/2013/01/ins ... ndian.html

Edit: Anyone can ID the sensors and equipment on the main mast?
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Re: Indian Naval Discussion

Post by John »

Note there is no Fire control radar for AK-630 and main gun, i guess it will be cued by the E/O.
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Re: Indian Naval Discussion

Post by Philip »

One report said that the ship would have a secondary ASW role if need be,but one can't see any provision made for AS TTs or mortars,etc. No info about the capability of its sonars too.However,the main gun and 30mm gatlings would be sufficient for picking off pirate vessels and provide some degree of anti-missile defence.The basic aim has been to develop a cost0effective patrol vessel which can replace a frigate for more mundane duties and cheaper to operate.
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Re: Indian Naval Discussion

Post by srin »

Philip wrote:One report said that the ship would have a secondary ASW role if need be,but one can't see any provision made for AS TTs or mortars,etc. No info about the capability of its sonars too.However,the main gun and 30mm gatlings would be sufficient for picking off pirate vessels and provide some degree of anti-missile defence.The basic aim has been to develop a cost0effective patrol vessel which can replace a frigate for more mundane duties and cheaper to operate.
It is almost a corvette (wiki says 2300t) - it is 1000t larger than Kora class, a little less than Kamorta - but has only 76mm and 30mm. But it doesn't carry SSMs nor fire control radar.

What am I missing ?
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Re: Indian Naval Discussion

Post by Shrinivasan »

srin wrote:It is almost a corvette (wiki says 2300t) - it is 1000t larger than Kora class, a little less than Kamorta - but has only 76mm and 30mm. But it doesn't carry SSMs nor fire control radar.
Relax... I think there is something hidden here like a VLS plug for SAM or Anti Ship Missile or could be retrofitted shortly. Or it could be loaded with Sensors (Offshore Patrol) and hence low on weaponry. If carries an automatic 76mm rapid fire gun along with CIWS, this is more than enough for Patrols.
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Re: Indian Naval Discussion

Post by nash »

i think these will be very good against Pirates, no need to send warships for anti-piracy work.
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