FORCETALLY
Loading the evidence…
Preparing your view.
Preparing your view.
At a glance
Oscar-class submarinelarger figure on 2 of 2
Sauro-class submarinelarger 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
maximum
Single source155 m (508 ft 6 in) maximum[source]
I and II Batches
Single sourceConfiguration
| Specification | Oscar-class submarine | Sauro-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] | 3 x shaft diesel Grandi Motori Trieste GMT 210.16-NM (2,7 MW) I, II and III Batches: : 1 electric engine Magneti Marelli (2.686 kW) IV Batch: : 1 electric engine ABB[source] |
| Name | Oscar II class[source] | Sauro class[source] |
| Builders | Sevmash[source] | Italcantieri Monfalcone shipyard[source] |
III Batch
Single sourceIV Batch
Single sourceI and II Batches: 63.85 m III Batch: 64.36 m IV Batch: 66.00 m[source]
Submerged · source measurement 3
Single sourceSubmerged · source measurement 4
Single sourceSurfaced · source measurement 1
Single sourceSurfaced · source measurement 2
Single source12,500/14,700 tonnes surfaced 16,500/19,400 tonnes submerged[source]
I and II Batches: 1,456 tons surfaced 1,641 tons submerged III Batch: 1,476 tons surfaced 1,662 tons submerged IV Batch: 1,653 tons surfaced 1,862 tons submerged[source]
Maximum; Submerged
Single sourceMaximum; Surfaced
Single source15 knots (28 km/h; 17 mph) surfaced 32 knots (59 km/h; 37 mph) submerged[source]
Maximum; Submerged
Single sourceMaximum; Surfaced
Single sourceto 12 knots (22 km/h; 14 mph)
Single source2,500 nmi (4,600 km; 2,900 mi) to 12 knots (22 km/h; 14 mph)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Operators | Soviet Navy Russian Navy[source] | Italian Navy[source] |
|---|
| Preceded by | Papa class Charlie class[source] | Toti class , Tang class , Tench class[source] |
|---|
| Succeeded by | Yasen class[source] | Todaro class[source] |
|---|
| Built | 1975–2022, may be restarted[source] | — |
|---|
| In commission | 1980–present[source] | 1979[source] |
|---|
| Planned | 20 (2 949, 18 949A)[source] | — |
|---|
| Completed | 14 (2 949, 11 949A, 1 09852)[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] |
|---|
| Type | Nuclear-powered cruise missile submarine[source] | Submarine[source] |
|---|
| Endurance | 120 days[source] | — |
|---|
| Test depth | 600 m[source] | 300 m[source] |
|---|
| Armament | 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] | I and II Batches: : 6 x 533 mm torpedo tubes 12 torpedoes Whitehead A-184 or 24 mines carried III and IV Batches: : 6 x 533 mm torpedo tubes 12 torpedoes Whitehead A-184 Mod.3 or 24 mines carried[source] |
|---|
| Alternative designation | Oscar II[source] | — |
|---|
| Country of origin | Soviet Union[source] | Italy[source] |
|---|
| In service | — | 1980[source] |
|---|
| Preserved | — |
|---|
| Sensors & processing systems | — | I and II Batches: 1 x radar SMA SPS-704 1 x sonar Elsag-USEA IPD70/S Submarine Action Information System SMA/Datamat MM/SBN-716 SACTIS periscopes Barr & Stroud CK31 Search and CH81 Attack Periscopes communication system by ELMER III and IV Batches , after update 1999/2005: 1 x radar SMA MM/BPS 704-V2 1 x sonar STN Atlas Elektronik – ISUS 90-20 Combat System STN Atlas Elektronik – ISUS 90-20 periscopes Kollmorgen communication system IRSC, by Hagenuk Marinekommunikation[source] |
|---|
| Electronic warfare & decoys | — | I and II Batches: ESM systems Elettronica Spa, Thetis ELT/124-s and MM-BLD/1 III and IV Batches , after update 1999/2005: ESM systems Elettronica Spa, BLD-727[source] |
|---|
12 knots (22 km/h; 14 mph) surfaced 19 knots (35 km/h; 22 mph) submerged[source]