FORCETALLY
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At a glance
SAS Queen Modjadjilarger figure on 3 of 3
Shallow Water Combat Submersiblelarger figure on 0 of 3
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Measured figures
Length
Single source62.0 m (203 ft 5 in)[source]
Length
Single sourceConfiguration
| Specification | SAS Queen Modjadji | Shallow Water Combat Submersible |
|---|---|---|
| Power | Diesel-electric, 4 diesels, 1 shaft, 6,100 shp (4,500 kW)[source] | — |
| Name | SAS Queen Modjadji[source] | — |
| Namesake | A South African Rain Queen[source] | — |
| Builder | Nordsee Werke, Emden[source] | — |
| Launched | 18 March 2006[source] | — |
| Commissioned | 22 May 2008[source] |
6.8 meters (22 ft)[source]
at 10 kn (19 km/h) (surfaced,)
Single sourceat 10 knots ( snorkeling )
Single sourceat 4 kn (7.4 km/h) (submerged)
Single source11,000 nmi (20,000 km; 13,000 mi) at 10 kn (19 km/h) (surfaced,) 8,000 nmi (15,000 km; 9,200 mi) at 10 knots ( snorkeling ) 400 nmi (740 km; 460 mi) at 4 kn (7.4 km/h) (submerged)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| — |
| Identification | Pennant number S103[source] | — |
|---|
| Status | in active service (awaiting refit as of 2023)[source] | — |
|---|
| Type | Heroine-class submarine[source] | Submersible , diver propulsion vehicle[source] |
|---|
| Test depth | 500 m (1,600 ft)[source] | >190 feet (58 m)[source] |
|---|
| Sensors & processing systems | Sonar : STN Atlas CSU-90; hull mounted and flank arrays Radar : Surface search I-band Optics : Zeiss non-hull penetrating optronic mast[source] | Inertial navigation system , high-frequency sonar for obstacle/mine avoidance and navigation, GPS[source] |
|---|
| Electronic warfare & decoys | ESM : Grintek Avitronics, intercept + radar warning receiver ELINT : Saab S/UME-100 tactical electronic support measures[source] | — |
|---|
| Armament | 8 × 21 in (533 mm) torpedo tubes , 14 AEG SUT 264 torpedoes ; optional UGM-84 Harpoon integration[source] | SEAL team personal weapons, limpet mines[source] |
|---|
| National origin | South Africa[source] | — |
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| Builders | — | Teledyne Brown Engineering[source] |
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| Operators | — | United States Navy Royal Navy (planned)[source] |
|---|
| Preceded by | — | SEAL Delivery Vehicle[source] |
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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 | — |
|---|
| Completed | — |
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| Propulsion | — | Lithium-ion batteries powering electric motors[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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