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At a glance
Measured figures
Separate unspecified CE2F types: alternative lengths, not a range · 7 or
Single source7 or 8 metres (23 ft 0 in or 26 ft 3 in)[source]Separate unspecified CE2F types: alternative lengths, not a range
Configuration
| Specification | Cosmos CE2F series | Shallow Water Combat Submersible |
|---|---|---|
| Type | swimmer delivery vehicles (SDV)[source] | Submersible , diver propulsion vehicle[source] |
| Manufacturer | M/s Cos.Mo.S Spa.[source] | — |
| Propulsion | battery-electric motors[source] | Lithium-ion batteries powering electric motors[source] |
| Variants | X30, X60 and X100 versions were sold[source] | — |
| Controls | digital control module, displaying navigation and platform details, and a fully integrated autopilot |
Length
6.8 meters (22 ft)[source]
Displacement
Single source4.5 tonnes (5.0 short tons)[source]
2 crew, 4 passengers
Single source6 (2 crew, 4 passengers)[source]
at 4 knots (7.4 km/h; 4.6 mph)
Single source50 nmi (93 km; 58 mi) at 4 knots (7.4 km/h; 4.6 mph)[source]
Alternative belly-pan explosive payloads, not craft mass · of heavy explosive charges, or
Single sourceAlternative belly-pan explosive payloads, not craft mass · of limpet mines
Single source230 kg (510 lb) of heavy explosive charges, or 150 kg (330 lb) of limpet mines[source]Alternative belly-pan explosive payloads, not craft mass
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| — |
| Builders | — | Teledyne Brown Engineering[source] |
|---|
| Operators | — | United States Navy Royal Navy (planned)[source] |
|---|
| Preceded by | — | SEAL Delivery Vehicle[source] |
|---|
| Cost | — | $383 million (program cost)[source] |
|---|
| On order | — | 7 USN, 3 RN[source] |
|---|
| Building | — |
|---|
| Completed | — |
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| 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] |
|---|
| Country of origin | — | United States[source]Inventory Origin column; table 2, row 5, cell 2; revision 1373375989; retrieved 2026-09-30 |
|---|