South Korean Submarines, 3,000+ ton KSS-III, Nuclear Potential

See detail on possible South Korean nuclear submarine technology in redded KSS-N sub-heading below.

One of South Korea's (international convention of just "Korea" now used) nine Chang Bogo class (KSS-Is). Korea is completing a sale of three to Indonesia.

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One of Korea's four Son Won-Il class (KSS-IIs) in commision - five to go. Larger than the KSS-I and AIP equipped. Looks like a pre-launch ceremony. 

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With the KSS-III being described as a "3,000 tonne submarine" for a decade the above dimensions (very similar to the single hull Collins) may be accurate. The "3,000 t" would be surfaced displacement.

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A larger KSS-III? If its length is really 83.5 m and breadth/beam 7.7 m, then compared with the Collins (77.4 m, 7.8 m) the KSS-III's displacement appears to be around 3,400 tonnes (surfaced) and 3,800 tonnes (submerged). There are many other variables in estimating displacement of course! Other possibilities are that the above is a "4,000 t" nuclear KSS-N? or 83.5 is propaganda to equal the Soryu's 84 m length.

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Another model of what the KSS-III may turn out like. It appears to have 6 VLS hatches but a 6 missile Vertical Multi Purpose Lock (VMPL) is more likely.
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South Korea (international convention of just "Korea" now used) has a long and competitive ship-building tradition. Korea has the world's largest ship-building industry - with 41% of world market share (in first quarter 2015). This has put Korea in a good position to build German TKMS-HDW designed submarines (from kits?) since 1990. Korea has also has submarine export success and is perhaps well prepared to develop a 3,000-4,000 tonne conventional submarine. It faces threats even greater than Japan does - having a land border with North Korea and in much closer proximity to China. The Korean Navy has publicised its creation of a Submarine Command for reasons difficult to discern but perhaps to suggest an eventual capability of a pre-emptive or second strike nuclear deterrent.

South Korea's KSS-I, KSS-II and KSS-III building program suggest a goal of having a rolling average of at least 18 submarines operational and perhaps 22 to match Japan's medium term goal. The so-called "indigenous" submarine (KSS-III) project may still draw heavily on TKMS-HDW technology but "indigenous" also provides ambiguity if Korea needs to develop KSS-III into a nuclear propelled submarine "KSS-N" possibly nuclear armed. 

South Korea's strategy includes the creation of a pre-emptive strike "kill chain" (of threat detection, decision making-authorisation and (mainly missile) pre-emptive strike) against North Korea. Submarines would be a (or the) principal pre-emptive strike and counter-strike platform. Subsonic cruise missiles are generally too slow for these roles - making supersonic+ cruise and ballistic missiles the logical solution.

Used South Korean has two Dolgorae class mini submarines (above) launched 1990 and 1991, 175 tons, with two small 410mm torpedo tubes. They have crews of 14 and may be used for surveillance and perhaps special forces. They were acquired by South Korea to obtain initial experience with the basics of operating a submarine force and to train surface ASW ships in the detection of subs.

In 2011 South Korea indicated it would be building new mini-subs, known as KSS-500As, weighing 510 tons. They may operate only on Lithium-ion Batteries and diesel engines. 

KSS-Is and KSS-IIs

Korea's navy operates:

- 9 Chang Bogo class (KSS-I), a variant of the TKMS-HDW type 209/1200. In 2011 Daewoo Shipbuilding & Marine Engineering (DSME) won a contract to supply Indonesia with two pre-assembled Chang Bogos (to be delivered probably in 2016-2017) with a third Chang Bogo to be assembled in Indonesia (perhaps the beginning of an indigenous Indonesian production line!). The 9 KSS-Is have been regularly upgraded which may extend their service life past the usual 30 years. A major future upgrade may be Lithium-ion batteries fully or partly replacing lead-acid batteries - although such a retrofit may be very difficult. See NTI document for names of specific, commissioned KSS-Is and KSS-IIs up to 2011.

-  4 Son Won-Il class (KSS-II) as at April 2015. Five more are due to be commissioned by 2020. These are variants of the TKMS-HDW Type 214 submarines. Hyundai Heavy Industries (HHI) built the first three (commissioned 2007-2009). DSME, HHI and STX Offshore & Shipbuilding are alternately building the second batch of six with one of the six commissioned in December 2014 and the final one due to be commissioned in 2018. Like the KSS-Is the KSS-IIs carry some US built Harpoon missiles for anti-ship and possibly land attack. Like the KSS-Is the KSS-IIs are orientated to a surveillance, anti-shipping, anti-submarine and (a short range) land attack capability. 

KSS-III, 3,000-4,000 tonne Design - Conventional and Potentially Nuclear  

There will be eventually 9 (KSS-III) 3,000-4,000 tonne submarines.  See the 3rd and 4th pictues above that contain varying dimentions attributed to the KSS-III (also called "DSX-3000") which indicate its surfaced displacement may be anywhere between 3,000 and 3,400 tonnes. DSME will be the main designer. The lead KSS-III boat began development in November 2014 at DSME's submarine yard at Okpo. It my be a major step forward in utilising Lithium-ion Batteries (LIBs). The second batch of KSS-IIIs (especially if they use new technology LIBs) may take 8 years to build and launch (2024) and then 3 years to commission (about 2027). 

The larger size of the KSS-III will permit it to include some of the latest submarine technologies, including:

- large diameter unmanned underwater vehicles (LDUUVs)
- Seal/diver delivery vehicles (SDVs)
- dry-wet cells for special forces in dinghies/divers/Seals
- VLS or more probably the major advance of Vertical Multi Purpose Lock (VMPL) capable of launching 1,500+ km cruise and Harpoon missiles,, VMPLs are also capable of launching LDUUVs and SDVs. 

As well as retaining fuel cell (or less likely Stirling) AIP, KSS-IIIs could also incorporate features from the TKMS-HDW Dolphin 2 including the large rudder system and reinforced hull bottom which allow such a large SSK to operate in shallow, littoral waters. Also Germany's TKMS-HDW could provide assistance using features from the so-far drawing board only HDW 216 (intended to be a 3,000+ tonne design). 

One additional reason Korea is going the indigenously developed submarine route is that international political pressure on Germany would probably prevent Germany from openly assisting South Korea to develop the KSS-III in the medium-long term into a nuclear propelled KSS-N submarine, possibly armed with nuclear weapons.

The capability to use Tomahawk or indigenous Hyunmoo-3 series cruise missiles of 1,500+ km (far longer than the 140 km range KSS-I/KSS-IIs UGM-84 Harpoons) potentially makes the KSS-III much more effective against such additional threats as China and Russia. The future KSS-IIIs may also be capable of firing ballastic missiles.

The US may have been politically unwilling to supply the Tomahawk to Korea. Instead Korea appears to have incorporated many of Tomahawk's features into the Hyunmoo-3 series. By building an indigenous missile, warhead ambiguity is introduced. Korea is one of those countries (like Japan) that could develop a nuclear weapon in less than a year. Miniaturisation may be a major hurdle but a Hyunmoo-3 (or other cruise missiles) could trade range to achieve a heavier warhead than 500 kg.

KSS-III could best be described as multi-purpose. For a medium sized navy like Korea's KSS-IIIs (or KSS-Ns) could combine some of the capabilities that larger navies cover more comprehensively with distinctly different types, such as SSKs, SSNs, SSGNs and SSBNs. 

KSS-N, a Nuclear Development of the KSS-III? 

Korea appears to have long maintained an option of a KSS-N (also called KSSX-N and SSX) a 4,000+ ton nuclear propelled development of the KSS-III. On past plans see Globalsecurity.com report. However to date any plan has not occurred due to pressure from all of Korea's neighbours, US opposition and the necessity of building an indigenous submarine rather than a submarine that heavily relies on a foreign country (Germany). Also a nuclear propelled Korean submarine would diminish any chance that North Korea would remove/destroy its nuclear weapons and ballistic missiles. Korea might develop the KSS-N submarine if threats against it sufficiently increase and/or US military support diminishes.

Korea has long and extensive experience building nuclear power reactors - mostly large but still useful in any future development of submarine reactors. Interestingly DSME (as at April 2015) appears to be designing a "nuclear propulsion [surface] ship". This would have the legitimate purpose of meeting market demand for nuclear propelled, very large, ice-breaking, oil and LNG tankers. This activity also provides dual-use potential for submerged nuclear propulsion. 

In terms of an actual reactor technology path the Korea Atomic Energy Research Institute (KAERI) is also operating and further developing a small 100 MW ("SMART") pressurised water reactor with a output (at least) that may suite a 4,000 ton KSS-N. The SMART reactor's main current weakness is that it uses 5% enriched Uranium (U) 235 providing a poor power to size/weight ratio. 5% means SMART presently needs three year (overly frequent) refueling. Korea probably could legitimately develop the SMART at a higher (ice breaker surface ship) U enrichment percentage to make it much more useful as a submarine reactor. Korea has been seeking IAEA-US permission to develop a greater U enrichment capability but has been blocked. Although at a small amount-laboratory level Korea has a proven Uranium enrichment ability.

So Korea's indigenous submarine (KSS-III) program is well worth watching for its potential.

I'll do an article on North Korea's submarine situation in the future.

More Sources

http://www.nti.org/analysis/articles/south-korea-submarine-capabilities/

http://www.defensenews.com/story/defense/show-daily/sea-air-space/2015/04/12/korea-south-north-navy-modernize-coastal-scandal-sub-helicopter-frigate/25512681/

http://www.globalsecurity.org/military/world/rok/kss-n.htm

Pete

SEA 1000 Continued - Maybe no VLS and no LockMart



So many choices for Vertical Launch Systems (VLS) or broader term Vertical Multi-Purpose Locks (VMPL). Nice to have - adding strategic and tactical flexibility - but very heavy and expensive for a diesel-electric submarine limited to 4,500 tonnes (submerged).

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The following is MHalblaub's comment of "Australian SEA 1000 future submaine - an S-80 development or HDW 216?" of November 30, 2013 at http://gentleseas.blogspot.com.au/2013/11/australian-sea-1000-future-submaine-s.html

"Dear Pete,

our view coincide that SEA 1000 is a very ambitious project. Just like the F-35. Ambitious defence projects tend to be delayed and more expensive than expected. In my opinion both projects are far too ambitious.

That any submarine has to use a Lockheed Martin SUBIC combat system will not enhance the development time. The decision to use this combat system is not based on requirements. In my opinion it is only based on cronyism because nobody tried to ask if Australia could get better insight in another system.

A vertical launch system (VLS) is nice to have in case of a real big submarine like the Vertical Multi-Purpose Lock (VMPL) on planed Type 216. You said many missiles could be fired at once from one submarine. My argument is that for one big SEA 1000 submarine at a cost of A$3 billion each Australia could buy 4 small submarines instead with capability to fire even more missiles at once.

For a "piggyback" submarine a VMPL is also unnecessary. A26 or 210mod are planned with a big “torpedo” tube for special purpose. http://www.thyssenkrupp-marinesystems.com/en/hdw-class-210mod.html A smaller submarine can get closer to the shore and the "piggyback" sub doesn’t have to be big.

You have the fear an "interim" sub could become a permanent fix. My fear is that without an interim solution Australia will have no operational submarine in the future. A big submarine even with support by DCNS or HDW and interference by ASC will not be ready before 2030. Navantia is troubled to get the S-80 working. A sole Australian submarine solution might be ready in 2040 (IOC). A small “Off The Shelf” (OTS) solution could be built fast in case no big changes were made to sonar system, command and control system, torpedoes …

I also doubt the claim it would be uneconomic to operate two types of submarines at once. At the moment RAN operates one very uneconomic type of submarine. Does RAN also operate just one type of surface ships because this is more economic? Do you think the F-35 will be the only fighter aircraft for RAAF?

Even with SEA 1000 RAN will operate two types at once for a while. I expect it will be a very unreliable Collins-class with incredible maintenance costs and a troubled SEA 1000 program with many delays.

What about politics? Do you think Australia could use an US built nuclear submarine for any mission without restrictions from Washington? Maybe the best solution would be two or three Virginia-class submarines and a fleet of “cheap” small submarines.

Missile systems:
The seeker system of a Popeye missile was build to hit land targets while the Harpoon was initially built against ships. Therefore I think Israel did use Popeye missiles with a 50 % bigger and better suited warhead.

Regards,
MHalblaub

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Pete's Response 

Hi MHalblaub

Not only is SEA 1000's plans to develop an Australia only SSK ambitious, expensive and highly risky but Australia's planned future purchase of 100 Lockheed Martin F-35s from around 2016 would frustrate and delay any major expenditure on the SEA 1000 project.

The purchase of a Lockheed Martin submarine combat system may indeed add risk to the SEA 1000 project given Lockheed Martin has established a convincing reputation for over-time and over-budget. The extent of Lockheed Martin's political, hence market, power in the US conquers mere considerations of cost and efficiency.

A Vertical Multi-Purpose Lock (VMPL) (of course with VLS capabilities) may indeed be a heavy luxury that may not bring sufficient benefits. Tomahawks fired from 6 standard horizontal tubes could be achieved quickly.

On mini piggy back subs and diver exit I noticed "The Collins class boats are also capable of supporting special forces teams. In 2005, Collins was fitted with various modifications to support special forces, including exterior shelters for inflatable boats. [HMAS] Dechaineux was modified in 2006, and the other submarines will receive the hatches during their full cycle docking." http://en.wikipedia.org/wiki/Collins-class_submarine#Armament

To avoid what I still see overly problematic options of an interim sub or two SSK designs operating simultaneously the only solution might be to buy a large existing design Off The Shelf. This could be from the most experienced exporters-indigenous build supporters which are DCNS and HDW. In comparison Navantia with its currently troubled S-80 design has comparatively little submarine building experience and no independent sub export or indigenous sub build support experience.

Unfortunately Navantia's problems in themselves might form a sufficient recipe for Navantia's selection by Australia. Our acquisition trend is frequently weighted in favour of choosing under-developed, hence problematic designs like the F-111, then the Collins and now Australia believes itself committed to 100 troubled F-35s.

A DCNS (SSK or SSK transition to SSN) will be considered in following articles as will the Japanese Soryu Class .

Mission restrictions may well be a problem from choosing a US (SSN) or Japanese (SSK) design. But then again the political and strategic advantages of choosing a design from an Asia-Pacific ally like the US and Japan must be factored in.

Regarding Israel's recent use of possible a Harpoon land attack or Popeye missile the issue becomes even more clouded with:

"The Harpoon Block II adds GPS guidance, improved processing that helps it distinguish targets amidst near-shore “clutter,” and land attack features. Harpoon competes with Israel’s own ship-borne Gabriel 3 anti-ship missile ; Israel’s Navy operates both types," http://www.defenseindustrydaily.com/israel-requests-642m-in-missiles-fuel-03682/

Regards

Pete

Australian SEA 1000 future submaine - an S-80 development or HDW 216?

 A rough sketch of the Navantia S-80 submarine. This sub is still being built-developed and might be launched in 2015.

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Concerning my article of November 22, 2013, "Ongoing debate on Australia's SEA 1000 future submarine requirements." http://gentleseas.blogspot.com.au/2013/11/ongoing-debate-on-australias-sea-1000.html MHalblaub commented:

"Hi Pete,

do you think the US are unreliable allies? That was my thought reading RAN has to shadow a fast going nuclear powered submarine (SNN) for a week. I doubt that there will be within the next 10 years any technique for a conventional submarine to maintain submerged about 20 knots for more than 24 hours. Therefore the only solution would be a SNN, to wait or to trust the US.

I am well aware that the small HDW 210mod falls short of the SEA 1000 requirements. In my eyes these requirements are the wet dreams of some Admirals.

A greater range would be useful. A bigger weapons load is nice to have. The 8+ VLS are also a nice to have but they could also be tube launched. Btw Popeyes in action: http://voiceofrussia.com/news/2013_07_14/Israel-hits-Syria-to-destroy-Russian-made-Yakhont-anti-ship-missiles-3943/

The British Astute-class submarines can also fire Tomahawks without an US combat system.

The problem for Royal Australian Navy will be the gap between Collins-class retirement and entry into service of SEA 1000 submarines. Australia can throw a lot of money after the Collins-class to keep them running until 2030. Today the price for one HDW Type 210 is about the costs Australia needs to maintain Collins-class for one year. The maintenance costs for Collins-class will awfully rise in the future.

My advice would be to order as soon as possible 6 Type 210mod/A 26 to fill this gap. 5 submarines should be built in Australia. That will give Australia time and knowledge to design a proper submarine. This interim solution would also save a lot of money and add capabilities.

Australia should not try to reinvent wheels that already exist in far better quality. E.g. engines, AIP, combat system, … That will lead to a troubled and outdated son of Collins – just like the father.

Regards,
MHalblaub
(I tried two times to log me in …)

AIP: Direct Methanol Fuel Cell: http://www.sfc-defense.com/products

November 22, 2013"

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Pete's Comments

My response is that I think the US are reliable allies that provide Australia with security benefits in peacetime and would be an essential ally if Australia faced an enemy too big for Australia to handle alone.

You are right that no non-nuclear propulsion would allow an Australian submarine to shadow a fast moving SSN for a week. And yes the only options are for an Australian SSN or reliance on US SSNs to do fast moving shadowing.

It is true the SEA 1000 requirements are very ambitious. They would require a unique, new, very large diesel-electric submarine (SSK) or an SSN.

The value of a VLS is its flexibility eg. for: a divers wet-dry chamber; a hatch for a mini "piggyback" sub; and to fire cruise or small ballistic missiles. For missile firing the main value of a VLS is the low indiscretion factor - meaning the sub can fire all (say) 8 missiles very quickly - reducing that chance that the sub will be detected while firing. Using horizontal tubes probably involves "slow time" reloads of missiles or of follow-up torpedos.

Regarding http://voiceofrussia.com/news/2013_07_14/Israel-hits-Syria-to-destroy-Russian-made-Yakhont-anti-ship-missiles-3943/ its quite possible Popeyes were not used. The target was in range of Israel's Harpoon SLCMs. It would therefore have been unnecessary for Israel to use its (perhaps) 1,500 km range Popeye SLCMs and there would have been a risk a malfunctioning Popeye would crash and then its technical secrets might be revealed. If the Popeye SLCMs have a 1,500 km range (see http://www.nti.org/analysis/articles/israel-submarine-capabilities/) its more likely they would be used for targets deep inland like Tehran or even Riyadh.

Yes its true the British Astute class SSN is a possibility. However any purchase of a French or UK SSN has the disadvantage that their maintenance-repair bases are around 20,000 km away in Northern Europe or effectively further if the Suez Canal is blocked in wartime. Meanwhile the US provides some SSN maintenance facilities much closer in Diego Garcia, Guam and certainly Pearl Harbour.

The Royal Australian Navy would be very aware that an "interim" sub choice might become permanent. The fixed costs of any sub choice are high - therefore making interim highly uneconomic as would running two different sub types simultaneously.

In any case the HDW 210 is basically the smallest of the HDW range (with the even smaller HDW 206 being phased out). This makes the HDW 210 the least likely HDW Australia might buy. The bigger the better in terms of range and endurance - making a very large version of the HDW 212-214 basically a HDW 800 Dolphin+ the most likely buy from HDW.

An HDW Dolphin+ is on the way to an even larger (but technically and financially high risk)  HDW 216 in response to SEA 1000 requirements. It needs to be remembered though that the US (Lockheed Martin) may well not make its highly developed combat system available to HDW. Against this HDW is probably the world's most experienced and productive builder of conventional diesel-electric subs.

In contrast I understand Lockheed Martin is placing its combat system into the Spanish Navantia S-80. It is significant that Australia might have confidence in dealing with Navantia in submarine development because I believe Australia has a positive relationship with Navantia in the current Canberra LHD and Hobart AWD projects. Against this Navantia has never independently built and then launched an operational submarine. Navantia has also had no independent experience building subs for export or assisting a customer to build a sub

Possibly I'm overrating the importance of the Lockheed Martin SUBICs combat system in the SEA 1000 submarine selection - see http://www.asiapacificdefencereporter.com/articles/193/SEA-1000-COMBAT-SYSTEMS-SELECTION-FOR-SEA-1000 .

While Kockums submarine division's future is in doubt Australia developing an A26 or any other Kockums design is unlikely.

Definitely "Australia should not try to reinvent wheels" and should avoid a repeat of the Collins experience.

I also have had problems logging-in or commenting on some blogger-blogspot sites - probably some technical problem involving blogger-blogspot or even of its Google owner.

Regards

Pete

Ongoing debate on Australia's SEA 1000 future submarine requirements.



The HDW Type 210mod "Ula Class" submarine specifically built for Norwegian conditions, with a submerged displacement of 1,150 tons.



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For the latest on Australia's future submarine issue see June 11, 2014’s Australia's Future Submarine - Swedish vs German Claims http://gentleseas.blogspot.com.au/2014/06/australias-future-submarine-swedish-vs.html . 



For my preceding post "Australian SEA 1000 Future Submarine, shipbuilding-budgeting issues"   http://gentleseas.blogspot.com.au/2013/11/australian-naval-shipbuilding-and.html Anonymous has commented as follows:

"Anonymous said...

So what is the military issue behind a bigger son of Collins-class?

Range of a Collins-class submarine today is reached by even smaller submarines like Type210mod or A26. To gather intelligence a small submarine is better suited and a diesel-electric submarine is even quieter than a large Virginia-class submarine.

What about crew size? A Virginia-class submarine is manned with about 130 men. A modern Type210mod needs just 15 men (21 for 3-watch). Therefore 3 crews of Virginias 26 small submarines could be manned. For price of one Virginia class submarine Australia could get at least 4 Type210. For A$30billion Australia could buy more than 40 Type210mod.

This submarine could be built in Australia. The advantage of building a steady stream of small submarines is to include improvements in the next batch and to keep the knowledge alive how to build them.

Just 3 operational submarines are easier to track and even very fast submarines can’t be everywhere at once. Also a fast submarine is very noisy. A trip around Australia is roughly 7,000 nm. For each submarine 2,300 nm to patrol. With 26 submarines the area is less than 300 nm. With just 3 operational submarines it is very hard to lose one with a crew of over 100 men.

US combat System due to US weapons? What a nonsense! South Korea ChangBogo-class (Type 209) can fire Harpoon missiles. If Raytheon dislikes selling some Tomahawks Australia could just ask Israel about some Popeyes. Israel operates Popeyes on Dolphin-class submarines (Type 209).

Oh, more range. What about submarine tenders? Even the US Navy has a few.

Going big will result in too few submarines. Going to Virginia will add a capability already existing in the Pacific and Indian Ocean. After 6 or 12 small submarines Australia can still switch to a larger submarine type but then with better knowledge.

November 22, 2013

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On this current post I am responding with:

Hi Anonymous

The HDW 210mod and all existing SSKs (including the current sized S-80) fall far short of Australian SEA 1000 (future submarine) requirements.

The SEA 1000 submarine needs range, endurance, speed, multi-mission capabilities and weapons load far above existing SSKs.

If you compare the totality of HDW 209, 210mod ("Ula"), 212 or 214's published capabilities with Collins http://en.wikipedia.org/wiki/Collins-class_submarine you'll see the difference.

Note that SEA 1000 needs higher capabilities than even the Collins, especially for the added weapons load of 8+ Tomahawks in a VLS and an AIP capability (achieved by "usual" AIP, advanced batteries or nuclear).

Ideally an SEA 1000 should be operationally autonomous (from US SSNs) and hence capable of shadowing a fast moving SSN for at least a week.

The crew size of 135 for a Virginia being much larger than for SSKs (or the 60 for a future French Barracuda SSN) is indeed an issue.

Tomahawk is a requirement because Harpoon missiles are far too short in range for many land attack scenarios and because Tomahawk is US combat system compatible.

There are too many current uncertainties about the suspected Israeli SLCM Popeye. Popeye may include considerable "off the books" US, French and/or Indian content making it difficult for Israel to export.

Regards

Pete

Australian SEA 1000 Future Submarine, shipbuilding-budgeting issues

For the latest on Sweden's Saab perhap's buying ASC see June 11, 2014’s Australia's Future Submarine - Swedish vs German Claims http://gentleseas.blogspot.com.au/2014/06/australias-future-submarine-swedish-vs.html . It is unclear whether Germany or Sweden hold the strongest intellectual property rights to the Stirling AIP.

A rough sketch of what Australia may want in its SEA 1000 future submarine project. Nuclear or diesel-electric propelled, if diesel-electric then additionally AIP or very large advanced battery capacity, multi-use vertical launch system, US combat system, US weapons including Tomahawk. Probably the not yet developed HDW 216, an enlarged DCNS Scorpene and in development Spanish S-80 are front runners with the SEA 1000 program planners. US Virginia Class, UK or French nuclear attack subs are outside chances. The chance that Swedish Kockums might be chosen (again) is reduced due to the Collins experience and TKMS-HDW.



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Australia's new centre-conservative Coalition Government has made no decision on what its project SEA 1000 future submarine will consist of.

The previous centre-left Labor Government (voted out in September 2013) indicated in White Papers and other reviews that 12 future submarines would be constructed from around 2025 to around 2035. The previous Government decided these submarines would be large (up to 4,500 tonne) and hence of unique design, diesel-electric, built in Adelaide, South Australia and that they would probably use the US combat system and US conventional weapons (including the Tomahawk cruise missile). These unique large diesel-electric may effectively be Collins Mk. IIs but not built with Kockums as a major contractor unless TKMS negotiates deals in that direction. The Labor decision was made due to several considerations including:

- economic-industry development potential for the depressed South Australia economy

- popular with Labor's trade union constituency

- Federal and State level electoral considerations ie. votes in South Australia

- ideological anti-nuclear grounds, including popularity with Labor's Green Party ally and

- technical grounds (mainly that Australia possessed no nuclear propulsion support industry, that is if we needed one at all...)

Australia's new conservative Liberal-National Coalition Government has not yet made a decision on what will be in the SEA 1000 future submarine in part because:

- the new Coalition Government has only been in power for two and a half months

- the highly complex 30+ billion dollar project deserves several long reviews

- Australia does not currently have the Defence money to fund the project

- naval shipbuilding and budgeting for Australia is currently taken up by the 2 Canberra Class Landing Helicopter Docks (LHDs) and the 3 Hobart Class (Aegis) Air Warfare Destroyers (AWDs) projects under construction, and

- the issue is still unresolved under the new Government as to whether Australia may buy nuclear propelled attack submarines rather than diesel-electric

Its not necessarily set in stone that 12 subs will be built rather than 6 diesel-electric or 4 to 6 nuclear propelled. The built in Australia requirement is not a given. Industry-jobs-votes requirements in Australia may be met in other ways including offset agreements and heavy maintenance facilities constructed  in Australia including nuclear propulsion support (if needed...).

If, as is likely, 4 Virginia Class can do the job of 12 diesel-electric Collins Mk. IIs then on the crucial issue of lower overall price, a deal is possible.

A final Australian decision may take 4 years into the new Government ie 2017.

In terms of arguments favouring nuclear propelled Phil Radford a freelance writer, based in Sydney, has written the following article of May 15, 2013 in the Australian Strategic Policy Institute (ASPI's) The Strategist http://www.aspistrategist.org.au/a-farewell-to-nuclear-submarines-for-now/

A farewell to nuclear submarines, for now

The Defence White Paper signals full-steam ahead for Australia’s most expensive defence project ever: the design and construction, in Australia, of 12 conventionally-powered submarines. With A$200m committed to funding initial designs, however, the enormity of the challenge will start to surface. Australia now has to create submarines with greater range and endurance than anything built by countries with generations of experience.

Hopefully, Canberra analysed its alternatives to the point of exhaustion. In about two years’ time, Adelaide will start to fill up with the 1,500-or-so foreign draughtsmen and engineers that RAND says Australia will have to import, just to execute the design work. And as these experienced submarine designers wrestle with the performance parameters set by government, they’ll pose one very awkward question: “Why are you asking us to design a nuclear-powered submarine without a nuclear engine?”

Currently, the government has no answer. The White Paper simply says that “consideration of a nuclear powered submarine capability [… has been] ruled out”. This reticence is mistake. As Collins Mk II rises from the drawing board, the case for purchasing nuclear-powered boats will only get stronger.

First, consider the money. The projected cost of an all-new 4,000 tonne conventional boat is estimated by ASPI to be over A$3 billion, which includes all project costs. This is approximately the same as the sail-away cost of a much larger Virginia class nuclear submarine off an established production line, and could even be more than a French or British nuclear submarine which would almost certainly sail away for less than $2 billion. Defence would still have to purchase the support systems to get the boats into Australian service, but the industrial and program costs sunk into getting a first-in-class to work would be borne by someone else.

Besides being less risky to procure, these nuclear-powered vessels would be far more powerful than conventionally-powered boats. They could arrive on station faster, stay there longer, carry more weapons, and fight more aggressively. As a deterrent, they’d be many times more formidable.

The Royal Australian Navy might play a simple war game once the new design matures. They could invite a retired American submarine captain over and say : “Sir, to achieve a specific objective in the middle of the Pacific or Indian oceans you have a straight choice between having, under your command, one single nuclear-powered boat, or ‘X’ number of our Collins Mk.II?” Even at this distance, his ‘X’ is likely to be two or three. Expressed as an opportunity cost in dollars, the answer is horrendous.

The objections to going nuclear are clear; but as the challenges of Collins Mk.II become less opaque, the question will be: did the Government diligently and unemotionally address them?

If the over-riding justification for an Australia-built fleet is operational independence, then Government should look squarely at what the current fleet delivers. Only one third of the Collins fleet is generally seaworthy. Refitting them takes four to five times the work required on similar comparable European vessels. And upgrading them requires US help for the most complex elements—the sensors, combat system and weapons.

Australia could almost certainly sustain a fleet of nuclear boats to a higher level of operational availability than currently possible. Neither the US nor UK boats ever need refuelling. The core is closed for the lifetime of the submarine, so the additional nuclear engineering required for through-life support is modest. Establishing a first-class nuclear-boat maintenance facility in Australia would be expensive, but pales beside the gargantuan cost of re-launching the Australian Submarine Corporate (ASC) as a construction yard.

Alternatively, Australia could avoid the cost and political risk of building maintenance facilities here, and instead operate the boats on a similar cycle to the United States Navy’s Guam-based submarines. This would mean the submarines having only a small maintenance footprint here and returning to US West Coast for periodic refits, which is pretty much how the RAAF maintains its fleet of C-17 strategic transports.

In either case, you don’t need a construction yard to maintain a submarine. The activities are quite different. British nuclear boats never re-visit the Barrow yard where they are built.

Nor would the fact Australia’s boats were foreign-built boats necessarily diminish the country’s strategic independence. There’s a fundamental difference between depending on an ally to come to your aid (which, in extremis, Australia does now) and depending on your ally not to obstruct you from paying to defend yourself. That’s why the UK ultimately trusts US not to abuse its position as the supplier–owner of its Trident ballistic missiles, on which the UK’s independent deterrent relies.
Does the case against nuclear boats ultimately rest, then, on Australian jobs foregone? That flank, too, is exposed. Re-booting ASC will merely kick-start thousands of careers that will go nowhere once each design and construction phase is complete. Better, surely, to play the international defence procurement game, and trade jobs on submarines for offsets in industries where Australia can build competitive advantage—and careers with a future.

The stakes couldn’t be higher. Asia is rising and submarines will become Australia’s primary defence asset for many decades. For now, the government has passed on the one weapon that could deliver genuine independent strategic security. But like a pair of lethal mines, cost and capability are floating right in the path Australia’s home-grown subs. This won’t be the last we hear of Australia’s nuclear option.

Phil Radford is a freelance writer, based in Sydney. He specialises in naval strategy and defence procurement."