Dosan Ahn Changho-class submarine was developed for the Republic of Korea Navy as part of the third phase of Korean Attack Submarine (KSS-III) program. It is notable for being one of the very few non-nuclear submarines capable of launching submarine-launched ballistic missiles (SLBM). Displacing at around 3,800 tons (submerged), Dosan Ahn Changho-class submarine features an Air Independent Propulsion (AIP) which enables it to operate for three weeks while submerged. It is armed with 6x torpedo t