East Asia: Submarine/Depth Comparison: China, South Korea, Taiwan, Thailand
East Asia: Submarine
The submarine’s dive depth is at the heart of performance.
Therefore, it is classified as confidential in each country and details are unknown.
Submarine How deep can you dive?
The detailed depth is the top secret, and how good is the East Asian owned ship?
Submarines for export:
The dive depth is often disclosed as a catalog spec for sale.
You can infer the numerical value from there.
Chinese past:
China also designs and builds in its own country.
Traditionally, They have been researching the technology of submarine advanced countries Russia.
From the mid-1990s to the early 2000s, 12 Russian submarines were imported.
China has been exporting submarines built in China to Thailand and Pakistan since 2010.
In this export, there are cases where the specifications are lower than those of the domestic submarine.
However, when exporting to other countries, the diving depth is disclosed.
Current situation in China:
China is the largest submarine power in East Asia.
They own more than 70 nuclear submarines （ normal power submarines）.
The maximum dive depth of a nuclear submarine is unknown.
But with a normal powered submarine, you can predict to some extent.
Chinese normally powered submarines:
The most abundant Chinese normally-powered submarines are the “GEN”, which began operation in 2006.
As of 2020, the Chinese Navy has about 20 vessels in service.
It is also exported to Thailand and Pakistan.
S20: Export type of “GEN” submarine
The “S20”, an export type of “GEN” submarine, has a depth of 300m.
It was published in “IDEX-2013” in 2013.
Korea:
Active submarines are German models 209 and 214.
Both are non-nuclear powered normally powered submarines
Type 209 is older, type 214 is newer
The nominal dive depth is about 300m for the 209 type and about 400m for the 214 type.
Taiwan:
The operating submarine is quite old.
Two purchased from the US Navy as used in the 1970s
Therefore, the dive depth is about 100m.
The other two are modified versions of the Dutch Navy Zvardfiss class submarines.
It is a normal power type that sails with diesel and lead batteries and has a depth of 300 m.
Thailand:
In May 2017, the S26T is an improved version of the S20 that Thailand has signed a purchase contract with from China.
This type is also said to have a dive depth of 300m.
Japan：
The submarine’s dive depth owned by the JMSDF is not announced.
The Seawolf class nuclear submarine in the United States is said to have a depth of 500m.
(Vehicle news)
https://news.yahoo.co.jp/articles/80dd9efe6fb229bc82f69121c33d00c3da4ac0fd?page=1