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At a glance
Shallow Water Combat Submersiblelarger figure on 0 of 4
Type 039 submarinelarger figure on 4 of 4
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Measured figures
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Configuration
| Specification | Shallow Water Combat Submersible | Type 039 submarine |
|---|---|---|
| Builders | Teledyne Brown Engineering[source] | Wuhan Shipbuilding Jiangnan Shipyard[source] |
| Operators | United States Navy Royal Navy (planned)[source] | People's Liberation Army Navy[source] |
| Preceded by | SEAL Delivery Vehicle[source] | Type 035 submarine[source] |
| Cost | $383 million (program cost)[source] | — |
| On order | 7 USN, 3 RN[source] | — |
| Building | — | |
| Completed | 13[source] | |
| Type | Submersible , diver propulsion vehicle[source] | SSK[source] |
| Propulsion | Lithium-ion batteries powering electric motors[source] | diesel-electric, 1 shaft[source] |
| Test depth | >190 feet (58 m)[source] | 300 m[source] |
| Sensors & processing systems | Inertial navigation system , high-frequency sonar for obstacle/mine avoidance and navigation, GPS[source] | — |
| Armament | SEAL team personal weapons, limpet mines[source] | 6 × 533 mm torpedo tubes, for: 18 × torpedoes or: 36 × naval mines[source] |
| Country of origin | United States[source]Inventory Origin column; table 2, row 5, cell 2; revision 1373375989; retrieved 2026-09-30 | People's Republic of China[source] |
| Name | — | Song class[source] |
| Succeeded by | — | Type 039A submarine[source] |
| In commission | — | 1998-present[source] |
| Planned | — | 13[source] |
| Active | — | 13[source] |