FORCETALLY
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At a glance
Kilo-class submarinelarger figure on 2 of 2
Shallow Water Combat Submersiblelarger figure on 0 of 2
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Measured figures
Project 636.3
Single sourceProject 877
Single sourceConfiguration
| Specification | Kilo-class submarine | Shallow Water Combat Submersible |
|---|---|---|
| Power | Diesel-electric[source] Diesel-electric propulsion 2 × 1000 kW diesel generators 1 × 5,500–6,800 shp (4,100–5,100 kW) propulsion motor 1 × fixed-pitch 6-bladed (Project 877) or 7-bladed (Project 636) propeller[source] | — |
| Builders | Rubin Design Bureau Krasnoye Sormovo Shipyard Amur Shipbuilding Plant Admiralty Shipyard Sevmash[source] | Teledyne Brown Engineering[source] |
| Operators | See Operators[source] | United States Navy Royal Navy (planned)[source] |
| Preceded by | Tango class |
72.6 m (238 ft 2 in) (Project 877); 73.8 m (242 ft 2 in) (Project 636.3)[source]
Length
Single source6.8 meters (22 ft)[source]
Full run at 21 kn (39 km/h; 24 mph)
Single sourceSubmerged at 3 kn (5.6 km/h; 3.5 mph)
Single sourceWith snorkel at 7 kn (13 km/h; 8.1 mph)
Single sourceWith snorkel: 6,000–7,500 nmi (11,100–13,900 km; 6,900–8,600 mi) at 7 kn (13 km/h; 8.1 mph) Submerged: 400 nmi (740 km; 460 mi) at 3 kn (5.6 km/h; 3.5 mph) Full run: 12.7 nmi (23.5 km; 14.6 mi) at 21 kn (39 km/h; 24 mph)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
SEAL Delivery Vehicle[source] |
| Succeeded by | Lada class[source] | — |
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| Subclasses | Sindhughosh class[source] | — |
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| Built | 1980–present[source] | — |
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| In service | 1980–present[source] | — |
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| In commission | December 1980–present[source] | — |
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| Completed | 75[source] |
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| Active | 56[source] | — |
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| Lost | — |
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| Retired | 17[source] | — |
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| Preserved | — |
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| Type | Attack submarine[source] | Submersible , diver propulsion vehicle[source] |
|---|
| Test depth | Operational: 240 m (790 ft) Maximum: 300 m (980 ft)[source] | >190 feet (58 m)[source] |
|---|
| Armament | 6 × 533 mm (21 in) torpedo tubes 18 torpedoes 4 Kalibr/Club land-attack cruise missile , anti-ship missile and anti-submarine missile (some versions) 24 mines 8 9K34 Strela-3 (SA-N-8 Gremlin) or 8 9K310 Igla-1 (SA-N-10 Gimlet) surface-to-air missiles (export submarines may not be equipped with air defense weapons)[source] | SEAL team personal weapons, limpet mines[source] |
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| Country of origin | Soviet Union[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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| Sensors & processing systems | — | Inertial navigation system , high-frequency sonar for obstacle/mine avoidance and navigation, GPS[source] |
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| Reported operators |
| — |
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