Ohio class
Fuel enrichment
~93% U-235
HEU
Ohio class is a nuclear-powered submarine operated by United States Navy, powered by S8G of about 220 MWt. Operating.
The US ballistic missile submarine fleet, being replaced by the Columbia class from the 2030s.
Propulsion
| Reactor | S8G |
|---|---|
| Reactors per vessel | 1 |
| Thermal output | 220MWt |
| Fuel enrichment | ~93% U-235HEU |
| Refuelling | One mid-life refuelling at about 25 years |
Vessel
| Category | submarine |
|---|---|
| Role | SSBN |
| Operator | United States Navy |
| Country | United States |
| Vessels in class | not stated |
| In service from | 1981 |
| 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 |
| Oscar II class | - | 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