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Ohio vs Le Triomphant

Ohio vs Le Triomphant at a glance — displacement 16,764 vs 12,640 tons, length 170 vs 138 m, speed 12 vs 15 knots, crew 155 vs 111.

Ohio submarine side profile drawing
🇺🇸 Ohio
Le Triomphant submarine side profile drawing
🇫🇷 Le Triomphant
Specifications
Ohio 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 DCNS
Year introduced 1981 1997
Number built 18 units 4 units
Estimated unit price $2,000 million $3,100 million
Displacement 16,764 tons 12,640 tons
Maximum speed 12.0 knots 15.0 knots
Range Unlimited Unlimited
Length 170.0 m 138.0 m
Beam 13.0 m 12.5 m
Crew 155 111
Max depth 240 m 400 m
Performance Radar Chart
Armament & Systems
Ohio Le Triomphant
Armament
  • 4 × 21 inch (533 mm) Mark 48 torpedo tubes
  • 20 × Trident II D5 SLBM
  • 154 × Tomahawk cruise missiles
  • Harpoon missiles
  • 16 M45 or M51/51.3 missiles with six to ten TN 75 or TNO thermonuclear warheads
  • Four 533 mm (21 in) torpedo tubes for F17 torpedoes and Exocet SM39 anti-ship missiles
Propulsion 1× S8G PWR nuclear reactor, 2× geared turbines; 35,000 shp (26 MW), 1x Fairbanks Morse auxiliary diesel, 1× 325 hp (242 kW) auxiliary motor, 1 shaft with seven-bladed screw K15 pressurized water reactor 150 MWth with turboreductor pump-to-shaft system of 30,5 MW; two emergency diesel-powered generators SEMT Pielstick 8PA4V200 SM (700 kW (940 hp)) auxiliaries
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Frequently Asked Questions

Which has greater displacement, the Ohio-class or Le Triomphant-class?
The Ohio-class has greater displacement at 16,764 tons compared to the Le Triomphant-class's 12,640 tons.
Which is faster, the Ohio-class or Le Triomphant-class?
The Le Triomphant-class is faster with a maximum speed of 15 knots compared to the Ohio-class's 12 knots.
Which has longer range, the Ohio-class or Le Triomphant-class?
Both the Ohio-class and Le Triomphant-class are nuclear-powered and have unlimited range, limited only by food supplies and crew endurance.
Which is longer, the Ohio-class or Le Triomphant-class?
The Ohio-class is longer at 170.0 meters compared to the Le Triomphant-class's 138.0 meters.
How many crew members do the Ohio-class and Le Triomphant-class have?
The Ohio-class has a larger crew complement of 155 compared to the Le Triomphant-class's 111 crew members.
Which can dive deeper, the Ohio-class or Le Triomphant-class?
The Le Triomphant-class can dive deeper with a maximum depth of 400 meters compared to the Ohio-class's 240 meters.
Which is more expensive, the Ohio-class or Le Triomphant-class?
The Le Triomphant-class is more expensive at approximately $3.1 billion per unit compared to the Ohio-class at $2 billion.
Which has been built in greater numbers, the Ohio-class or Le Triomphant-class?
The Ohio-class has been built in greater numbers with 18 vessels compared to 4 vessels of the Le Triomphant-class.