How can deepwater subs patrol shallow Thai waters?

If it only comes  “with four torpedoes offered by the Chinese state factory”, what do the navy do once they’ve fired them as part of testing or training? And if  “the submarine purchase deal was genuinely between the governments of Thailand and China”, why wasn’t it signed by a proper Thai government official, say a defence minister or some such, rather than a serving Naval officer?
Ricardo
“If we say we have a dog in the house, at least it can help scare off people with evil intentions,” said Pisit.
I thought that’s what the Army is for?
Given that the Thai military most often goes up against their own citizens on the streets of Thailand, it’s difficult to imagine a sub helping unless it’s on wheels.
mtls2005
“In an exclusive interview with The Nation, Pisit said that the office’s priority in conducting the probe was to evaluate whether the Yuan-class S26T submarine’s specifications would actually meet the Navy’s expectations as stipulated in its long-term strategy.”
As these are deepwater machines and totally inappropriate for the RTN’s function of patrolling Thailand’s coastal waters it is obvious to most observers that they are in no way suitable. These are full on obsolete battlewagons, useful only in a war.
Farang99
Thaivisa