Oscar II class
Oscar II class is a nuclear-powered submarine operated by Russian Navy, powered by 2 OK-650, twin of about 190 MWt each. Operating.
A cruise-missile submarine built to sink American carrier groups from beneath the surface, and the class the submarine Kursk belonged to before it was lost with all hands in 2000 when its own torpedo exploded. Several remain in service.
Propulsion
| Reactor | OK-650, twin |
|---|---|
| Reactors per vessel | 2 |
| Thermal output | 190MWt each |
| Fuel enrichment | not disclosed |
| Refuelling | not disclosed |
Vessel
| Category | submarine |
|---|---|
| Role | SSGN |
| Operator | Russian Navy |
| Country | Russia |
| Vessels in class | not stated |
| In service from | - |
| Status | Operating |
Other submarines
| Class | Enrichment | Status |
|---|---|---|
| AUKUS submarines | HEU | Planned |
| Akula class | - | Operating |
| Alfa class | HEU | Retired |
| Arihant class | HEU | Operating |
| Astute class | HEU | Operating |
| Borei class | HALEU | Operating |
| Columbia class | HEU | Under construction |
| Dreadnought class | HEU | Under construction |
| Han class (Type 091) | - | Operating |
| Le Triomphant class | LEU | Operating |
| Los Angeles class | HEU | Operating |
| Ohio class | HEU | Operating |
| Seawolf class | HEU | Operating |
| Suffren class (Barracuda) | LEU | Operating |
| Type 093 and 094 (Shang and Jin) | LEU | Operating |
| Typhoon class | - | Retired |
| USS Nautilus | HEU | Retired |
| Vanguard class | - | Operating |
| Virginia class | HEU | Operating |
| Xia class (Type 092) | - | Retired |
| Yasen class | HALEU | Operating |
Sources
- World Nuclear Association, Nuclear-Powered Ships · retrieved 2026-09-07
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data