Singapore buys 2 Vastergotland Subs
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S'pore buys two Vastergotland subs
(from MINDEF site)
The Vastergotland-class submarines will be upgraded and converted for operations in tropical waters before they are delivered to the RSN, to replace some of the Challenger-class subs.
The Vastergotland-class submarines will be upgraded and converted for operations in tropical waters before they are delivered to the RSN, to replace some of the Challenger-class subs.
Singapore's Ministry of Defence (MINDEF) has signed a contract with Kockums AB of Sweden to buy two Vastergotland-class submarines.
The two submarines, expected to enter service from 2010, were evaluated to be a cost-effective opportunity buy that will enhance the submarine capabilities of the Republic of Singapore Navy (RSN).
Also covered in the MINDEF-Kockums AB agreement are a logistics package and comprehensive training in Sweden for the RSN's crews.
As the RSN's current Challenger-class submarines are also of Swedish origin, the Navy will benefit from synergies in both crew training and logistics support. -
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is it 1 generation more advanced then scorpene submarine?
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their scorpene looks advanced
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The two boat will be most likeky upgraded with advanced electronics and AIP as reported in many sources including Janes.
With AIP, our boats will have at least 3x of submerged endurance as compare MY's nono AIP Scorpene!!!!
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wonder if it is really necessary to keep buying subs.
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so, did we bought new subs or ex-swedish navy's subs
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yes
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My guess is ex-Swedish navy's coz only 3 subs of this class were produced. And yes, it makes good sense to purchase submarines as they are potent adversaries and require less manpower as compared to surface fleets.Originally posted by bmwf1kin:so, did we bought new subs or ex-swedish navy's subs -
Are you even sure the subs are AIP. From Kockums webby, two out of the four Vasotgotland class upgraded to AIP are for Sweden.
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All along we know that we will get the two subs from Sweden.
BUT the big question is are we getting SODERMANDLAND(1989) and OSTERGOTLAND (1990), both AIP equipped and in Swedish active service;
or are we getting the VASTERGOTLAND(1987) and HALSINGLAND(198, which are both sitting in a dockyard in reserve and not AIP equipped.
The deal is only one billion Kroners, is it possible that AIP subs are so cheap? [/b] -
Originally posted by zquek:
pointless to get inferior subs which other people can K.O
All along we know that we will get the two subs from Sweden.
BUT the big question is are we getting SODERMANDLAND(1989) and OSTERGOTLAND (1990), both AIP equipped and in Swedish active service;
or are we getting the VASTERGOTLAND(1987) and HALSINGLAND(198, which are both sitting in a dockyard in reserve and not AIP equipped.
The deal is only one billion Kroners, is it possible that AIP subs are so cheap? [/b] -
Breakthrough in Japan for Stirling AIP-- Air Independent Propulsion
Submarines equipped with Stirling AIP systems can expand the submerged endurance, thus avoiding to expose its position. This enables the Stirling AIP submarine to counter the threat scenario much more effectively compared to a conventional diesel-electric submarine.
---2005-07-11
2.Details of AIP
The principle of the Stirling AIP system.The systems offers an alternative to battery power, which in turn means less frequent requirements for noisy battery recharging, with the diesel generators.
Instead of a number of days, a Stirling AIP submarine can extend the time submerged to weeks and thus outperform any other conventional submarine with regard to that key capability - submerged endurance.
Outstanding advantages
The main feature of the Kockums air independent propulsion (AIP) system is the use of Stirling engines burning pure oxygen and diesel fuel in a pressurized combustion chamber.
The combustion pressure is higher than the surrounding seawater pressure, thereby allowing the exhaust products, dissolved in seawater, to be discharged overboard without using a compressor.
Oxygen is stored in liquid form (LOX) in cryogenic tanks. Submerged endurance is primarily determined by the amount of stored LOX.
A Stirling unit being moved into the open hull of a Gotland class submarine. -
Vastergotland-class has been re-named Sodermanland due to a modernization program applied to the remaining boats
In addition to the Stirling AIP, the Sodermanland submarines have been fitted to undertake missions in warmer and more saline waters than those surrounding Sweden. This goal has been achieved replacing the refrigeration system by an entirely new one.
more on AIP
Only Sodermanland--1989.and Ostergotland--1990 are in active service.
The Ostergotland submarine equipped with Stirling AIP-air independent propulsion system was delivered to the Swedish Navy in October 2004.
Specifications
Crew 20
Length 60.5 m 198-ft
Max Speed 20 kts
Full Displacement 1,500 tons
Number of Weapons 18
Span 6.1 m 20-ft
Torpedo Tubes 9
Equipment
Powerplant Stirling AIP
The Sodermanland-class, like the Vastergotland-class, has 6x 533mm torpedo tubes and 3x400mm torpedo tubes and can accommodate up to 18 torpedoes or 22 mines.
3.The moderniation programme seem tailor make for Sg!
The small no. of crew of 20 just fit this tiny red dot country.
Oh!She gets 9 Torpedo Tubes.A very impressive feature .It can mount a massive attack to few targets in a short period of time.
4.see how Vastergotland-class is converted to Stirling AIP
Yes,u are right.
To cut a submarine in two and install a new hull section is a complicated process.Any submarine can be converted
Submerged endurance-----Weeks -
click for Kockums news releaseYes .Two are old subs.
2005-11-04
Kockums receives Singapore order to two submarines
Kockums, which is part of ThyssenKrupp Marine Systems, has signed a contract with Singapore’s Ministry of Defence to supply two Västergötland-class submarines to the Republic of Singapore Navy.
Currently in service with the Royal Swedish Navy (RSwN), the submarines will be transferred to Singapore on completion of the modernization and conversion for operation in tropical waters. The contract also includes a logistics package and training for the crews. Training will be conducted by the Swedish Navy in Karlskrona, along the lines adopted in conjunction with a previous order for submarines for Singapore.
- Kockums has a valuable relationship with Singapore, having previously supplied Mine hunters and the current Challenger-class submarines to the Singapore Navy. We are naturally delighted and honoured to be entrusted with supplying the two submarines to Singapore. I am confident that the two Västergötland-class submarines, when handed over, will enhance the Singapore Navy’s submarine capability, says Kockums´ CEO Martin Hagbyhn, commenting on the news.
Kockums, which has an office in Singapore, has supplied submarines, mine hunters (MCMVs) and mine-clearance systems to the Republic of Singapore Navy (RSN) since 1991. -
Extract from Janes Naval Forces Section
Singapore considers purchase of Swedish submarines
By Richard Scott
Sweden and Singapore are believed to be close to concluding a deal for the transfer of two Type A 17 Västergötland-class submarines to the Republic of Singapore Navy (RSN).
Negotiations between Sweden's Defence Material Administration (FMV) and Singapore's Defence Science and Technology Agency have been under way for several months. Local media reports in Sweden suggest that Västergötland and Hälsingland - to be retired early from the Royal Swedish Navy (RSwN) as a result of cutbacks in submarine force levels - will be transferred as part of a sales agreement valued at about SEK1 billion (USD128 million).
The package is expected to include modernisation refits prior to delivery incorporating the addition of a Stirling air-independent propulsion (AIP) system.
Sweden sold four Type A 14 submarines to Singapore in the mid-1990s under projects Riken I and Riken II. Now operational with the RSN as the Challenger class, these 36-year-old boats have given the service its first experience of submarine operations. -
This is great we will be getting AIP submarines for a far lower cost as compared to the Malaysia's costly non-AIP Scorpenes! This proves that buying second-hand stuff may not necessarily be a disadvantage.
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Yes.Originally posted by SMAPLionHeart:their scorpene looks advanced
Some more got this....
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i hate to see mindef wasting $128million on useless submarines which cannot fire missiles
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scorpene's mesma AIP vs vastergotland's stirling aip
whose one better -
1.Swedish navy have converted the younger two of the four boats in the Västergötland (Vgd) Class originally launched in 1987-1990 to Södermanland Class.
2.Equipped for operation in warmer waters
3 the Swedish Navy will get two practically new submarines capable of operating for the next twenty years without further modernisation.
4.Possible Spec of 2 Spore converted and upgraded subs .
Images of Södermanland Class Submarine -
who's maintenance is better?......lol.....buy so new for wat if cant maintain for nuts
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Well, we have a long history of buying old stuff and upgrading the crap out of them. We did it to the Skyhawk, Tiger II, Sjoormen, M113, AMX-13... the list goes on.
I expect the same to happen to our Vastergotlands. I don't mind if the subs are second-hand so long as they can serve our purposes well. -
I wonder what class will they be renamed to in Sgp. Any guesses?
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They might just shove them under the Challenger class..makes no sense to makea new class for 2 subs.Unless, they plan to buy more Sodermanland subs..Originally posted by rascallyun:I wonder what class will they be renamed to in Sgp. Any guesses?