What appears to be a commissioning ceremony for two of Thailand's Matchanu class submarine in 1938. They were 370 tons surfaced.
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Model of a Matchanu class submarine (courtesy thaigunship). Submarines, up to 1945, carried many objects on the hull and often had upturned bows - all leading to slow submerged speeds.
For the latest on Thailand's on-again, off-again interest in submarines see Submarine Matters Does Thailand Need Submarines At All? August 12, 2015.
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On March 25, 2015 the Bangkok Post reported a rise in Thai interest in submarines: "A plan to buy submarines for the Royal Thai Navy
is on again with strong backing from Defence Minister Prawit Wongsuwon who
wants Thailand’s fleet to be on par with neighbouring countries. [The Thai Navy may want] two diesel-powered submarines with displacement of 2,400-3,000 tonnes. The source said the Chinese-made Yuan class is favoured by the committee due to its specifications. The "U-class" [do they mean U-209 class?] from South Korea and Germany also pinged the sonar screen." Comment - the possible budget reported elsewhere equal to US$1.1 Billion would indicate a total upfront price for two modern medium sized submarines.
BACKGROUND
Japan sold four Matchanu class submarines to Thailand in 1938. Thailand decommissioned these submarines in 1951. The early decommissioning was due to the Thai Government's reaction to a failed coup in 1951. The Government dismantled Navy influence - in part by stripping the Navy of its submarines.
In recent years Thailand has been evaluating several small-medium submarine types with a view to restarting a submarine service that actually operates submarines. An interesting entry in http://www.globalsecurity.org/military/world/thailand/ssk.htm states:
"It has been standard practice with the Thai submarine program ever since it was originally floated in 1959, proposals are floated and subsequently suspended and revived several times until cancelled. It was revived (and canceled again) in 1996, 1998, 2000, and 2003, and 2009."
Thailand has several reasons for its current evaluation of submarines. The reasons include the growth and modernisation of navies surrounding Thailand. Nearby countries have developed submarine services, including India, Malaysia, Singapore, Indonesia, Vietnam and China.
Bangladesh recently ordering two submarines from China and possible Burmese interest in Chinese submarines provide additional reasons for Thailand to buy submarines. Submarines provide a potent asymmetric defensive weapon for countries with small navies. Submarines also contribute to a country's and its Navy's prestige. The Royal Thai Navy has apparently established a submarine squadron at Sattahip naval base which has a German-made Rheinmetall submarine simulator, staffed by RTN officers who have received submarine training in Germany, as well as South Korea, over the past two years.
Most submarine building countries have offered to sell two or three submarines to Thailand, including:
- France-DCNS (Scorpene?)
- South Korea-DSME (Chang Bogo class, Type 209 derivative) or alternatively the unbuilt "HDS-500RTN" based on the unbuilt "KSS-500A" (510 tons, crew of 10) which is in-turn a descendant of Germany's HDW Type 207 (Kobben) small defensive submarines.
- China - the "S-26T" which may be a version of China's Yuan class or used Romeo-Ming class?
- Germany-TKMS-HDW Type 209/1400mod and also the Type 210mod
- Russia's improved Kilo class (Project 636)
- Sweden? (mysteriously silent). Perhaps two (further) refitted Sodermanland class? (currently Sweden's HMS Södermanland and HMS Östergötland?).
COMMENT
Thailand has been hesitant in acquiring submarines possibly seeking leases, used subs or good credit terms. This is in a business environment where the Thai economy is growing more slowly than anticipated.
Thailand appears to be seeking smaller than standard submarines. If used submarines are considered the remaining German built Type 207s (Kobben class) and Chinese Romeo-Ming class are likely to be obsolete and rusty as they have passed or are nearing their 30 year use-buy dates. Design and construction of modern 500 ton submarines are likely to be expensive as they are smaller than standard - requiring higher than usual design costs for low production numbers. As Thailand has had no submarines for more than 60 years there is no easy answer to what Thailand needs - no simple replacement program. The German simulator may increase the chances that Germany or South Korea (using German designs) might eventually win any Thai order.
In recent years Thailand has been evaluating several small-medium submarine types with a view to restarting a submarine service that actually operates submarines. An interesting entry in http://www.globalsecurity.org/military/world/thailand/ssk.htm states:
"It has been standard practice with the Thai submarine program ever since it was originally floated in 1959, proposals are floated and subsequently suspended and revived several times until cancelled. It was revived (and canceled again) in 1996, 1998, 2000, and 2003, and 2009."
Thailand has several reasons for its current evaluation of submarines. The reasons include the growth and modernisation of navies surrounding Thailand. Nearby countries have developed submarine services, including India, Malaysia, Singapore, Indonesia, Vietnam and China.
Bangladesh recently ordering two submarines from China and possible Burmese interest in Chinese submarines provide additional reasons for Thailand to buy submarines. Submarines provide a potent asymmetric defensive weapon for countries with small navies. Submarines also contribute to a country's and its Navy's prestige. The Royal Thai Navy has apparently established a submarine squadron at Sattahip naval base which has a German-made Rheinmetall submarine simulator, staffed by RTN officers who have received submarine training in Germany, as well as South Korea, over the past two years.
Most submarine building countries have offered to sell two or three submarines to Thailand, including:
- France-DCNS (Scorpene?)
- South Korea-DSME (Chang Bogo class, Type 209 derivative) or alternatively the unbuilt "HDS-500RTN" based on the unbuilt "KSS-500A" (510 tons, crew of 10) which is in-turn a descendant of Germany's HDW Type 207 (Kobben) small defensive submarines.
- China - the "S-26T" which may be a version of China's Yuan class or used Romeo-Ming class?
- Germany-TKMS-HDW Type 209/1400mod and also the Type 210mod
- Russia's improved Kilo class (Project 636)
- Sweden? (mysteriously silent). Perhaps two (further) refitted Sodermanland class? (currently Sweden's HMS Södermanland and HMS Östergötland?).
COMMENT
Thailand has been hesitant in acquiring submarines possibly seeking leases, used subs or good credit terms. This is in a business environment where the Thai economy is growing more slowly than anticipated.
Thailand appears to be seeking smaller than standard submarines. If used submarines are considered the remaining German built Type 207s (Kobben class) and Chinese Romeo-Ming class are likely to be obsolete and rusty as they have passed or are nearing their 30 year use-buy dates. Design and construction of modern 500 ton submarines are likely to be expensive as they are smaller than standard - requiring higher than usual design costs for low production numbers. As Thailand has had no submarines for more than 60 years there is no easy answer to what Thailand needs - no simple replacement program. The German simulator may increase the chances that Germany or South Korea (using German designs) might eventually win any Thai order.
I'm wondering about the silence on Sweden. With Sweden's recently announced pre-order of two A26s this may free-up Sweden's
two Sodermanland
class (currently Sweden's
HMS Södermanland and HMS Östergötland) for further
refitting and sale to Thailand. This is noting there is a historical precedent where Sweden effectively created Singapore's submarine service using 4 Challenger class (refitted Swedish) submarines.
The question "what does Thailand want?" remains. Thailand may
need small submarines for shallow, littoral waters in the Gulf of Thailand and
Andaman Sea yet Thailand may also need medium sized submarines for longer
range/endurance. Subs with AIP may be on Thailand's list of needs.
SOURCES
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