French submarine Le Vigilant (S618)

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History
Le Vigilant
France
Name	Le Vigilant
Namesake	"Vigilant"
Cost	€4.282 billion (2010)
Laid down	1997
Launched	19 September 2003
Commissioned	26 November 2004
Homeport	Île Longue
Identification	S618
General characteristics
Class and type	Triomphant-class submarine
Displacement	12 640 tonnes (surfaced) 14 335 t (submerged)
Length	138 m (453 ft)
Beam	12.50 m (41.0 ft)
Draught	10.60 m (34.8 ft)
Propulsion	Pressurised water K15 nuclear reactor (150 MW (200,000 hp)), LEU 7%; turboreductor system; Pump-jet 2 SEMT Pielstick diesels-alternators 8PA4V200 SM (700 kW (940 hp)) auxiliaries. 30,500 kW (40,900 hp)
Speed	over 25 knots (46 km/h)
Range	Unlimited distance; 20–25 years
Test depth	Over 400 m (1,300 ft)
Complement	15 officers 96 men
Sensors and processing systems	Sonar DMUX 80 Sonar DUUX 5 Sonar DSUV 61B Very Low Frequency Racal Decca radar (navigation) SCC : SET (Système d'exploitation Tactique) : tactical operational system
Electronic warfare & decoys	ARUR 13
Armament	Nuclear: 16 M45 or M51 missiles with six to ten TN 75 150 kt or TNO 100-300 kt thermonuclear warheads Anti-submarine : 4 × 533 mm (21 in) tubes for F17 torpedoes Anti-surface : Exocet SM39

Le Vigilant is a Triomphant-class strategic nuclear submarine in service with the French Navy.

References

"French Audit Report Reveals Weapon Prices, A400M Details". defence-aerospace.com. 18 February 2010. Archived from the original on 14 October 2013. Retrieved 7 August 2015.
https://core.ac.uk/download/pdf/18321557.pdf
"AFP: La marine française met un quatrième sous-marin nucléaire en service". Archived from the original on January 24, 2013. Retrieved 7 January 2020.
"IA M51 : Chape de plomb sur le nucléaire". Mer et Marine. 4 October 2010. Archived from the original on 9 October 2010. Retrieved 4 October 2010.
Kristensen, Hans. "France" (PDF). Assuring Destruction Forever: Nuclear Weapon Modernization Around the World. Women’s International League for Peace and Freedom. Retrieved 11 April 2013.
Reif, Kingston (8 December 2009). "Nuclear weapons: The modernization myth". Bulletin of the Atomic Scientists. Retrieved 11 April 2013.

v t e Triomphant-class submarines
Téméraire Terrible Triomphant Vigilant
Preceded by: Redoutable class Followed by: SNLE 3G (planned)
French Navy Current French Navy ships

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