Credit
U.S. Navy photo by Mass Communication Specialist 3rd Class Daniel Willoughby · Public domain · Resized · Public domain · Source ↗ · Modified
FORCETALLY
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At a glance
Emory S. Land-class submarine tenderlarger figure on 4 of 4
Shallow Water Combat Submersible
Measured figures
Length
Single source649 ft (198 m)[source]
Length
Single sourceConfiguration
| Specification | Emory S. Land-class submarine tender | Shallow Water Combat Submersible |
|---|---|---|
| Power | 2 × boilers Steam turbine 1 shaft 20,000 shp (14,914 kW)[source] | — |
| Builders | Lockheed Shipbuilding and Construction Company , Seattle , Washington, U.S.[source] | Teledyne Brown Engineering[source] |
| Operators | United States Navy[source] | United States Navy Royal Navy (planned)[source] |
| Preceded by | L. Y. Spear -class[source] | SEAL Delivery Vehicle |
Counts only measures both sources give with the same scope. A larger figure is not a better system.
6.8 meters (22 ft)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Built | 1976–1979[source] | — |
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| In commission | 1979–present[source] | — |
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| Completed |
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| Active | — |
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| Type | Submarine tender[source] | Submersible , diver propulsion vehicle[source] |
|---|
| Tonnage | 9,000 LT DWT[source] | — |
|---|
| Armament | 4 x 25 mm (0.98 in) MK 38 autocannon[source] | SEAL team personal weapons, limpet mines[source] |
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| Country of origin | United States[source] | United States[source]Inventory Origin column; table 2, row 5, cell 2; revision 1373375989; retrieved 2026-09-30 |
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| Cost | — | $383 million (program cost)[source] |
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| On order | — | 7 USN, 3 RN[source] |
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| Building | — |
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| Propulsion | — | Lithium-ion batteries powering electric motors[source] |
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| Test depth | — | >190 feet (58 m)[source] |
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| Sensors & processing systems | — | Inertial navigation system , high-frequency sonar for obstacle/mine avoidance and navigation, GPS[source] |
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