EQUIPMENT/Columbia-class SSBN
Columbia-class SSBN
SUBMARINE

COLUMBIA-CLASS SSBN

SSBN-826
Nuclear Ballistic Missile Submarine
πŸ‡ΊπŸ‡Έ
United States
North America
COUNTRY OF ORIGIN: USA
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OVERVIEW
MANUFACTURERGeneral Dynamics Electric Boat
YEAR INTRODUCED2028
UNITS IN SERVICEβ€”
UNITS PRODUCED1
UNIT COST$9800.0M

The US Navy's next-generation SSBN. Most expensive weapon system ever built. Features life-of-ship reactor and electric drive for extreme quieting. 12 boats planned.

SPECIFICATIONS

Displacement
20,815 tonnes submerged
Length
170.7 m
Beam
13.1 m
Crew
155
Max Speed
25+ knots submerged
Reactor
1x S1B PWR reactor (life-of-ship, no refueling)
Weapons
16x Trident II D5LE SLBM tubes
Life Of Ship
42 years without reactor refueling
Electric
Full electric drive (no mechanical reduction gears)

COMBAT RECORD

Under construction. Will replace Ohio-class SSBNs starting late 2020s.

OPERATORS

Operator data coming soon