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SubmarinesOn order: 5Profile in progress
Nuclear-powered ballistic missile submarine (SSBN)
Columbia-class submarine is a nuclear-powered ballistic missile submarine (SSBN).
United StatesTechnical data
True scale
Sourced dimensions beside a 1.75 m human reference.
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 28 Sept 2026 | 171 m | Wikipedia contributors | superseded |
en.wikipedia.org ↗ · Field absent
Checked 30 Sept 2026Recorded cached-source extraction and article inspection. No matching scoped field was extracted; this is not a claim that all five sources were checked.
Retained English infobox, specifications and article text
Columbia class 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 US$ 109.8 billion for 12 boats (FY2021, projected) US$ 9.15 billion per unit (FY2021, projected) Built 2020–present Pla
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Ohio class (ballistic missile submarine variant)
US$ 109.8 billion for 12 boats (FY2021, projected) US$ 9.15 billion per unit (FY2021, projected)
2020–present
12
5
2
Nuclear-powered ballistic missile submarine (SSBN)
20,810 long tons (21,140 t) (submerged)
560 ft (171 m)
43 ft (13 m)
S1B
Turbo-electric drive, pump-jet
Unlimited
155 (accommodation)
Enlarged version of the Virginia -class LAB sonar
16 × Trident D5 and torpedo tubes
USS District of Columbia SSBN-826 General Dynamics Electric Boat , Groton, CT 4 June 2022 Under construction
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Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
Country inventory links have not yet been documented for this equipment.