Columbia-class submarine
The planned Columbia-class submarine, as drawn in 2019 by Naval Sea Systems Command | |
| Class overview | |
|---|---|
| Preceded by | Ohio class (ballistic missile submarine variant) |
| Cost | |
| Built | 2020–present |
| Planned | 12 |
| On order | 1 |
| Building | 2 |
| General characteristics | |
| Type | Nuclear-powered ballistic missile submarine (SSBN) |
| Displacement | 20,810 long tons (21,140 t) (submerged) |
| Length | 560 ft (171 m) |
| Beam | 43 ft (13 m) |
| Installed power | S1B |
| Propulsion | Turbo-electric drive, pump-jet |
| Range | Unlimited |
| Complement | 155 (accommodation) |
| Sensors & processing systems | Enlarged version of the Virginia-class LAB sonar |
| Armament | 16 × Trident D5 and torpedo tubes |
| Part of a series on |
| Nuclear weapons of the United States |
|---|
| Nuclear triad |
| Doctrine |
| Main topics |
| Command and control |
| Notable tests |
| Sites |
| Missile Defense Agency |
The upcoming Columbia class (formerly known as the Ohio Replacement Submarine and SSBN-X Future Follow-on Submarine) are nuclear-powered ballistic missile submarines of the United States Navy, designed to replace the Ohio class. Construction of the first vessel began on 1 October 2020, and is scheduled to enter service in 2031.
On 3 June 2022, the Navy announced that the lead vessel of the class will be named USS District of Columbia (SSBN-826), because there is already an attack submarine named USS Columbia (SSN-771). Nevertheless, the Navy has since continued to refer to the class as Columbia.