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Le Triomphant  
Initial Operational Capability (IOC): 1997
Total Production: 4
Also Known As: SNLE 2G
Origin: France
Corporations: Naval Group
Parent System: Le Triomphant
Initial Operational Capability (IOC): 1997
Total Production: 4
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Description: Le Triomphant is a new class of nuclear-powered ballistic submarines (SSBN) designed to meet the requirements of France as the nuclear deterrence force cornerstone. Four Le Triomphant-class units will replace L'Inflexible-class ships becoming the quietest nuclear-powered submarines deployed ever by the French Navy. This program started in the early 1990s and it is being managed by the French DGA. Their main armament are 16 M45 ballistic missiles armed with 4 MIRVs, M45s will be replaced by the far more capable M51 SLBM beginning in 2010. The fourth submarine will be equipped with such missiles since its commissioning, while the three previous boats will be upgraded with the new missile when available. Additionally, these submarines can use F17 torpedoes and Exocet SM-39 anti-ship missiles through their four 533mm torpedo tubes for self-defense purposes.

The French Navy has ordered four Le Triomphant-class submarines. On November 19, 2004, DCN officially delivered the third boat, named Le Vigilant, to the French Navy, the boat was accepted for active service November 26 replacing L'Indomptable which will be decommissioned in 2005. Le Terrible, the last one of them, will be commissioned in 2010 two years later than early draft. Le Terrible will be the first submarine delivered equipped with M51 ballistic missiles instead of M45s. On October 28, 2004, DCN and the French Navy signed a contract worth €330 million ($414 million) to provide overall maintenance work in support of the ballistic submarines fleet over the next five years. Overhaul, engineering, sustain and repair works will be carried out at DCN facilities in Brest, France.

Le Triomphant Specifications

Crew: 111
Number of Ballistic Missiles: 16
Number of Weapons: 18
Torpedo Tubes: 4
Beam: 12.5 meter (41 foot)
Draft: 12.5 meter (41 foot)
Length: 138 meter (453 foot)
Max Operating Depth: 300 meter
Power: 41,500 shp (31.0 MW)
Top Speed Submerged: 25 knot (12.9 mps)
Mission Endurance: 60 day
Displacement Submerged: 14,300 ton
Displacement Surfaced: 12,640 ton
CEP: Circular Error Probable
Meters (m)   Kilometers (km)   Nautic Miles (nm)   Inch (in)   Yard (yd)   Foot (ft)   Millimeter (mm)
Pound (lb)   Kilogram (kg)   kN (KiloNewton)   Ton (t)
Meters per Second (mps)   Kilometers per Hour (kph)   Knot (kt)   Miles per Hour (mph)
Liter (l)   Galon (gl)
Year (yr)   Minutes (min)   Second (sec)
Shaft-Horse-Power (shp)

Le Triomphant News

There are 5 news between
26 Nov 2004 and 9 Dec 2016
Friday, December 9, 2016Last French Strategic Submarine to Receive M51 Ballistic Missile
Monday, October 5, 2009French Navy's Nuclear Submarine Fleet to Receive Nemesis Torpedo Counter-Measures
Friday, March 21, 2008Le Terrible Nuclear-powered Ballistic Missile Submarine Launched
Thursday, December 23, 2004French M51 Procurement Contract Signed
Friday, November 26, 2004French Navy Receives a New Ballistic Submarine

Operators & Related Equipment


Grand Total 41
Defensive Weapons
Offensive Weapons
SM39 Exocetx18
Protection Systems

Le Triomphant Ship Listing

SerialNameStatusLaunch DateCommissionDecommission
S616 Le Triomphant-1997-
S617 Le Temeraire-1999-
S618 Le Vigilant-2004-
S619 Le Terrible-2010-

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