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Le Triomphant vs Vanguard

Le Triomphant vs Vanguard at a glance — displacement 12,640 vs 15,900 tons, length 138 vs 149 m, speed 15 vs 15 knots, crew 111 vs 135.

Le Triomphant submarine side profile drawing
🇫🇷 Le Triomphant
Vanguard submarine side profile drawing
🇬🇧 Vanguard
Specifications
Le Triomphant Vanguard
Origin 🇫🇷 France 🇬🇧 United Kingdom
Category Submarine Submarine
Type Nuclear-powered ballistic missile submarine Nuclear-powered ballistic missile submarine
Manufacturer DCNS Vickers Shipbuilding and Engineering
Year introduced 1997 1993
Number built 4 units 4 units
Estimated unit price $3,100 million $4,800 million
Displacement 12,640 tons 15,900 tons
Maximum speed 15.0 knots 15.0 knots
Range Unlimited Unlimited
Length 138.0 m 149.9 m
Beam 12.5 m 12.8 m
Crew 111 135
Max depth 400 m 300 m
Performance Radar Chart
Armament & Systems
Le Triomphant Vanguard
Armament
  • 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
  • 4 × 21-inch (533 mm) torpedo tubes for Spearfish heavyweight torpedoes
  • 16 × ballistic missile tubes for Lockheed Trident II D5 SLBMs
Propulsion 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 1 × Rolls-Royce PWR2 nuclear reactor, 2 × GEC turbines; 27,500 shp (20.5 MW), 1 × shaft, pump jet propulsor, 2 × auxiliary retractable propulsion motors, 2 × Allen turbo generators (6 MW), 2 × Paxman diesel alternators; 2,700 shp (2.0 MW)
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Frequently Asked Questions

Which has greater displacement, the Le Triomphant-class or Vanguard-class?
The Vanguard-class has greater displacement at 15,900 tons compared to the Le Triomphant-class's 12,640 tons.
Which is faster, the Le Triomphant-class or Vanguard-class?
The Vanguard-class is faster with a maximum speed of 15 knots compared to the Le Triomphant-class's 15 knots.
Which has longer range, the Le Triomphant-class or Vanguard-class?
Both the Le Triomphant-class and Vanguard-class are nuclear-powered and have unlimited range, limited only by food supplies and crew endurance.
Which is longer, the Le Triomphant-class or Vanguard-class?
The Vanguard-class is longer at 149.9 meters compared to the Le Triomphant-class's 138.0 meters.
How many crew members do the Le Triomphant-class and Vanguard-class have?
The Vanguard-class has a larger crew complement of 135 compared to the Le Triomphant-class's 111 crew members.
Which can dive deeper, the Le Triomphant-class or Vanguard-class?
The Le Triomphant-class can dive deeper with a maximum depth of 400 meters compared to the Vanguard-class's 300 meters.
Which is more expensive, the Le Triomphant-class or Vanguard-class?
The Vanguard-class is more expensive at approximately $4.8 billion per unit compared to the Le Triomphant-class at $3.1 billion.
Which has been built in greater numbers, the Le Triomphant-class or Vanguard-class?
Both the Le Triomphant-class and Vanguard-class have been built in equal numbers with 4 vessels each.