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ForceTally · AI-generated illustration · Not a photograph · AI-generated · OpenAI output terms · Source ↗ · Modified
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At a glance
Blekinge-class submarinelarger figure on 0 of 2
Oscar-class submarinelarger figure on 2 of 2
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Measured figures
Length
Single source66.1 m (216 ft 10 in)[source]
maximum
Single sourceConfiguration
| Specification | Blekinge-class submarine | Oscar-class submarine |
|---|---|---|
| Power | — | 2 × pressurized water cooled reactors, HEU ≤ 45%[source] 2 × steam turbines delivering 73,070 kW (97,990 shp) to two shafts[source] |
| Name | Blekinge class[source] | Oscar II class[source] |
| Builders | Saab Kockums (Karlskrona shipyard)[source] | Sevmash[source] |
| Operators | Future operators: Swedish Navy Polish Navy[source] |
155 m (508 ft 6 in) maximum[source]
Submerged
Single sourceSurfaced
Single source1,925 tonnes (surfaced) 2,100 tonnes (submerged)[source]
Submerged · source measurement 3
Single sourceSubmerged · source measurement 4
Single sourceMaximum; on AIP
Single sourceMaximum; on diesel-electric propulsion
Single source6 kn (11 km/h) on AIP 20 km/h (12 mph) on diesel-electric propulsion[source]
Maximum; Submerged
Single sourceMaximum; Surfaced
Single sourceBars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Soviet Navy Russian Navy[source] |
| Preceded by | Gotland class[source] | Papa class Charlie class[source] |
|---|
| Succeeded by | Projekt A30[source] | Yasen class[source] |
|---|
| Cost | SEK 25 billion (2025) for 2 units SEK 12.5 billion (2025) per unit US$ 1.31 billion (2025) per unit[source] | — |
|---|
| In service | Planned to enter service in 2031 / 2033[source] | — |
|---|
| Planned | Sweden : 2 Poland : 3[source] | 20 (2 949, 18 949A)[source] |
|---|
| Building | — |
|---|
| Completed | 14 (2 949, 11 949A, 1 09852)[source] |
|---|
| Type | Hunter-killer submarine ( ISR , seabed operations)[source] | Nuclear-powered cruise missile submarine[source] |
|---|
| Decks | — |
|---|
| Propulsion | 1 shaft with 1 propeller, driven by: Stirling engines (AIP) : 4 × Kockums MkV V4-275R Diesel engines (diesel-electric) 2 × engines[source] | — |
|---|
| Endurance | 45 days (18 days underwater with AIP)[source] | 120 days[source] |
|---|
| Sensors & processing systems | Sonars : Atlas Elektronik (Sweden) Elac Sonar (Poland) Bow sonar Conform flank array sonar HF intercept sonar arrays Kongsberg SA9510S Mine Avoidance and Navigation Sonar EM2040 multibeam echo sounder, side-scan sonar, sub-bottom profiler and hydrographic echo sounders Masts : Periscope (Poland) Sagem Safran Series 30 optronic surveillance mast (Sweden and Poland) Drones (deported sensors): Saab LUUV (Larger uncrewed underwater vehicle)[source] | — |
|---|
| Armament | Torpedoes : 4 × 533 mm (21 in) torpedo tubes , with Torped 62 steg 2 , or Torped 63 2 × 400 mm (16 in) torpedo tubes , with: Torped 47 (Saab SLWT) Naval mines (in development) Missiles JSM-SL (in development)[source] | 4 × 533 mm (21.0 in) and 2 × 650 mm (26 in) torpedo tubes in bow 28 × 533 mm and 650 mm weapons, including RPK-2 Vyuga (SS-N-15 Starfish) anti-submarine missiles with 15 kt nuclear warheads and RPK-6 Vodopad/RPK-7 Veter (SS-N-16) anti-submarine missiles with 200 kt nuclear warhead or Type 40 anti-submarine torpedo or 32 ground mines 24 × P-700 Granit (SS-N-19 Shipwreck) cruise missiles with 750 kilograms (1,650 lb) HE or 6 × 100 Mt Poseidon nuclear-powered, nuclear-armed drones[source] |
|---|
| Notes | Multi-mission Portal used to launch special forces and larger underwater drones[source] | — |
|---|
| Country of origin | Sweden[source] | Soviet Union[source] |
|---|
| Built | — | 1975–2022, may be restarted[source] |
|---|
| In commission | — | 1980–present[source] |
|---|
| Canceled | — | 6 (2 incomplete, 4 never laid down)[source] |
|---|
| Active | — | 6 (modernization of some boats to 949AM)[source] |
|---|
| Laid up | — |
|---|
| Lost | — |
|---|
| Retired | — | 5?[source] |
|---|
| Test depth | — | 600 m[source] |
|---|
| Alternative designation | — | Oscar II[source] |
|---|
Surfaced · source measurement 1
Single sourceSurfaced · source measurement 2
Single source12,500/14,700 tonnes surfaced 16,500/19,400 tonnes submerged[source]
15 knots (28 km/h; 17 mph) surfaced 32 knots (59 km/h; 37 mph) submerged[source]