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Columbia vs Le Triomphant

Columbia vs Le Triomphant at a glance — length 171 vs 138 m, crew 155 vs 111.

Specifications
Columbia Le Triomphant
Origin 🇺🇸 United States 🇫🇷 France
Category Submarine Submarine
Type Nuclear-powered ballistic missile submarine Nuclear-powered ballistic missile submarine
Manufacturer General Dynamics Electric Boat, Newport News Shipbuilding DCN
Year introduced 2030 1997
Number built 12 units 4 units
Estimated unit price $9,150 million $3,100 million
Displacement NA 12,640 tons
Maximum speed NA 15.0 knots
Range NA Unlimited
Length 171.0 m 138.0 m
Beam 13.1 m 12.5 m
Crew 155 111
Max depth NA 400 m
Performance Radar Chart
Armament & Systems
Columbia Le Triomphant
Armament
  • 16 × Trident II D5 submarine-launched ballistic missiles
  • 533 mm torpedo tubes with Mk 48 torpedoes
  • 16 M51 (M51.2 / M51.3) submarine-launched ballistic missiles with TNO thermonuclear warheads; M45 on the first three boats until their M51 conversion
  • Four 533 mm (21 in) torpedo tubes for F21 heavyweight torpedoes and Exocet SM39 anti-ship missiles (18 weapons)
Propulsion S1B nuclear reactor, turbo-electric drive, pump-jet propulsor K15 PWR (150 MWth), turbines, 30.5 MW to one shaft, pump-jet; 2 Pielstick diesel-alternators
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Frequently Asked Questions

Which is longer, the Columbia-class or Le Triomphant-class?
The Columbia-class is longer at 171.0 meters compared to the Le Triomphant-class's 138.0 meters.
How many crew members do the Columbia-class and Le Triomphant-class have?
The Columbia-class has a larger crew complement of 155 compared to the Le Triomphant-class's 111 crew members.
Which is more expensive, the Columbia-class or Le Triomphant-class?
The Columbia-class is more expensive at approximately $9.2 billion per unit compared to the Le Triomphant-class at $3.1 billion.
Which has been built in greater numbers, the Columbia-class or Le Triomphant-class?
The Columbia-class has been built in greater numbers with 12 vessels compared to 4 vessels of the Le Triomphant-class.