Credit
CAPT Kate Dollof · Public domain · Resized · Public domain · Source ↗ · Modified
FORCETALLY
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At a glance
Shallow Water Combat Submersiblelarger figure on 0 of 1
Yono-class submarinelarger figure on 1 of 1
Measured figures
Length
Single source6.8 meters (22 ft)[source]
Length · source measurement 1
Single sourceConfiguration
| Specification | Shallow Water Combat Submersible | Yono-class submarine |
|---|---|---|
| Builders | Teledyne Brown Engineering[source] | Yukdaeso-ri Naval Shipyards[source] |
| Operators | United States Navy Royal Navy (planned)[source] | Korean People's Navy Islamic Republic of Iran Navy[source] |
| Preceded by | SEAL Delivery Vehicle[source] | Yugo class[source] |
| Cost | $383 million (program cost)[source] |
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Length · source measurement 2
Single sourceLength · source measurement 3
Single source20–22 m (65 ft 7 in – 72 ft 2 in)[source]
Submerged
Single sourceSurfaced
Single source550 nmi (1,020 km; 630 mi) surfaced 50 nmi (93 km; 58 mi) submerged[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| — |
| On order | 7 USN, 3 RN[source] | — |
|---|
| Building | 36[source] |
|---|
| Completed | 36[source] |
|---|
| Type | Submersible , diver propulsion vehicle[source] | Midget submarine[source] |
|---|
| Propulsion | Lithium-ion batteries powering electric motors[source] | Single-shaft MTU diesel engine with electric drive[source] |
|---|
| Test depth | >190 feet (58 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] | 2 × 533 mm (21 in) torpedo tubes Mines[source] |
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| Country of origin | United States[source]Inventory Origin column; table 2, row 5, cell 2; revision 1373375989; retrieved 2026-09-30 | — |
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| Name | — | Yono class[source] |
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| In service | — | 1965–present[source] |
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| In commission | — | 10[source] |
|---|
| Active | — | <36 (most in reserve)[source] |
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| National origin | — | South Korea[source] |
|---|