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ASubmarines
Attack submarine with ballistic missile launching capabilities
At a glance
Measured figures
Batch-I Submerged
Single sourceBatch-I (Submerged) Batch-II
Single sourceBatch-I Surfaced · source measurement 1
Single sourceBatch-I Surfaced · source measurement 3
Single sourceBatch-I:- 3,358 tonnes (3,305 long tons) (Surfaced) 3,750 tonnes (3,690 long tons) (Submerged) Batch-II:- 3,600 tonnes (3,500 long tons) (Surfaced) 4,000 tonnes (3,900 long tons) (Submerged)[source]
Displacement
Single source4.5 tonnes (5.0 short tons)[source]
Maximum; Submerged
Single sourceMaximum; (submerged) on fuel cell operation
Single sourceMaximum; Surfaced
Single source12 knots (22 km/h; 14 mph) (surfaced) 6 knots (11 km/h; 6.9 mph) (submerged) on fuel cell operation 20 knots (37 km/h; 23 mph) (submerged)[source]
Maximum; Speed
Single source6 kn (11 km/h)[source]
Range
Single source10,000 nautical miles (19,000 km; 12,000 mi)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Configuration
| Specification | Dosan Ahn Changho-class submarine | Shallow Water Combat Submersible |
|---|---|---|
| Power | Batch-I:- Diesel-electric propulsion 3 × MTU 16V396SE84L marine diesel engines Air-independent propulsion (AIP) 4 × Bumhan Industries PH1 PEM fuel cells , each with 100 kW output Batch-II:- Diesel-electric propulsion 3 × MTU 12V 4000 U83 marine diesel engines Air-independent propulsion 4 × Bumhan Industries PH1 PEM fuel cells , each with 100 kW output with increased hydrogen and liquid oxygen storage Samsung SDI lithium-ion batteries[source] | — |
| Builders | Hanwha Ocean HD Hyundai Heavy Industries[source] | Teledyne Brown Engineering[source] |
| Operators | Republic of Korea Navy (ROKN)[source] | United States Navy Royal Navy (planned)[source] |
| Preceded by | Son Won-il class ( Type 214 submarine )[source] | SEAL Delivery Vehicle[source] |
| Succeeded by | Jang Yeongsil-class (KSS-III Batch-II)[source] | — |
| Cost | US$ 900,000,000 per submarine[source] | $383 million (program cost)[source] |
| Built | 2014–present[source] | — |
| In service | 2021–present[source] | — |
| Planned | — | |
| Building | ||
| Completed | ||
| Active | — | |
| Type | Attack submarine with ballistic missile launching capabilities[source] | Submersible , diver propulsion vehicle[source] |
| Sensors & processing systems | Combat suite: Hanwha -developed "Combat Management System" (CMS) Sonar: LIG Nex1 -developed sonar suite Thales -developed mine-avoidance sonar Electronic warfare: Indra -developed radar electronic support measurement (RESM) Other processing systems: Safran -developed "Series 30" optronic surveillance mast Babcock -developed "Weapons Handling and Launch System" (WHLS) ECA Group-developed steering consoles[source] | Inertial navigation system , high-frequency sonar for obstacle/mine avoidance and navigation, GPS[source] |
| Armament | Batch-I:- 6 × 533 mm (21 in) torpedo tubes LIG Nex1 K761 Tiger Shark heavyweight torpedoes 6 × K-VLS cells 6 × Hyunmoo 4-4 submarine-launched ballistic missile Batch-II:- 6 × 533 mm (21 in) torpedo tubes LIG Nex1 K761 Tiger Shark heavyweight torpedoes C-Star-III anti-ship cruise missiles LIG Nex1 submarine-launched mobile sea mine 10 × K-VLS cells 10 × Hyunmoo 4-4 submarine-launched ballistic missile Chonryong land attack cruise missiles[source] | SEAL team personal weapons, limpet mines[source] |
| Notes | First-ever AIP-equipped submarine capable of launching submarine-launched ballistic missiles (SLBM).[source] | — |
| Alternative designation | Dosan Ahn Changho class[source] | — |
| Country of origin | South Korea[source] | United States[source]Inventory Origin column; table 2, row 5, cell 2; revision 1373375989; retrieved 2026-09-30 |
| On order | — | 7 USN, 3 RN[source] |
| Propulsion | — | Lithium-ion batteries powering electric motors[source] |
| Test depth | — | >190 feet (58 m)[source] |