FORCETALLY
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At a glance
Measured figures
Length
Single source60.4 m (198 ft 2 in)[source]
Sierra I
Single sourceConfiguration
| Specification | Gotland-class submarine | Sierra-class submarine |
|---|---|---|
| Range | — | Effectively unlimited, except by food supplies[source] |
| Power | — | Sierra I & II: 1 × PWR , 190 MW ( HEU <= 45% ) 2 × 1,002 hp (747 kW) emergency motors 1 shaft, 2 spinners[source] |
| Builders | Kockums[source] | Krasnoye Sormovo[source] |
| Operators | Swedish Navy[source] | Soviet Navy Russian Navy[source] |
| Preceded by | Västergötland class |
Sierra II
Single sourceSierra I : 107.16 m (351.6 ft) Sierra II : 110 m (360 ft)[source]
Maximum; on AIP
Single sourceMaximum; Submerged on batteries
Single sourceMaximum; Surfaced
Single sourceSurfaced: 11 knots (20 km/h) Submerged: 20 knots (37 km/h) on batteries; 5 knots (9.3 km/h) on AIP[source]
Maximum; Sierra I & II surfaced
Single sourceMaximum; Sierra II submerged
Single sourceBars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Alfa class , Victor class[source] |
| Succeeded by | Blekinge class[source] | Akula class[source] |
|---|
| Built | 1992–1996[source] | 1979–1992[source] |
|---|
| In commission | 1996–present[source] | 1984–present[source] |
|---|
| Planned |
|---|
| Completed |
|---|
| Active |
|---|
| Type | Submarine[source] | Nuclear attack submarine[source] |
|---|
| Propulsion | 2 × Diesel-electric MTU engines 2 × Kockums v4-275R Stirling AIP units[source] | — |
|---|
| Sensors & processing systems | CSU 90-2 integrated sonar sensor suite[source] | — |
|---|
| Armament | 4 × 533 mm (21.0 in) torpedo tubes 2 × 400 mm (15.7 in) torpedo tubes 48 × Externally mounted naval mines[source] | Sierra I & II: 4 × 650 mm (26 in) torpedo tubes (only Sierra I) 4 × 530 mm (21 in) torpedo tubes ( 6 x Sierra II) SS-N-21 Sampson SLCM SS-N-15 Starfish anti-submarine weapon: 200 kt depth charge or 90 kg HE Type 40 torpedo SS-N-16 Stallion , 200 kt depth charge or 90 kg HE Type 40 torpedo Minelaying configuration : 42 mines instead of torpedoes[source] |
|---|
| Country of origin | Sweden[source] | Soviet Union[source] |
|---|
| Name | — | Sierra class[source] |
|---|
| Canceled | — |
|---|
| Laid up | — |
|---|
Maximum; Sierra I submerged
Single sourceSierra I & II: 10 knots (18.5 km/h) (surfaced) Sierra I: 34 knots (63.0 km/h) (submerged) Sierra II: 32 knots (59.3 km/h) (submerged)[source]