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French submarine Gymnote (S655)

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History
France
NameGymnote
NamesakeGymnotus
Ordered1961
BuilderArsenal de Cherbourg
Laid down17 March 1963
Launched17 March 1964
Commissioned17 October 1966
Out of service1986
IdentificationS655
FateScrapped
General characteristics
Class and typenone
TypeSubmarine
Displacement
  • 3,000 tons surfaced
  • 3,250 tons submerged
Length84.0 m (275.6 ft)
Beam10.6 m (35 ft)
Draught7.6 m (25 ft)
Propulsion2 shaft diesel electric
Speed
  • 11 knots (20 km/h; 13 mph) surfaced
  • 10 knots (19 km/h; 12 mph) submerged
Complement78 men
Armament4 launch tubes for SLBM

Gymnote (S655) was an experimental submarine of the French Navy. She was a trials submarine for submarine-launched ballistic missiles (SLBM) and powered by diesel electric engines. She is named in honour of Gymnote, the world's first all-electric submarine built in France in the late 19th century.

The French planned a nuclear propelled submarine in the late 1950s and laid down a hull (no Q244). Because France had not developed uranium enrichment facilities at the time, the planned power plant was to be a heavy water reactor, which could utilize natural uranium. But French engineers were unable to produce a reactor small enough to fit into the submarine, which led to the project being canceled in 1959.[1]

In the early 1960s the French government decided to develop an independent nuclear deterrent based on SLBM's. Hull Q244 was redesigned as a trials submarine with four missile tubes in an extended casing. Gymnote was commissioned in 1966 and fired the first M-1 missile in 1968. The M-1 missile was subsequently deployed aboard the Template:Sclass- submarines. She was extensively rebuilt in 1977-79 to enable trials of the new M-4 missile. Gymnote was decommissioned in 1986.

References

Citations

  1. ^ [1] Archived October 14, 2009, at the Wayback Machine

Sources

  • Gardiner, Robert (ed.) (1995). Conway's all the World's Fighting Ships 1947-1995. London: Conway Maritime. ISBN 0-85177-605-1. OCLC 34284130. {{cite book}}: |first= has generic name (help); Cite has empty unknown parameter: |month= (help) Also published as Gardiner, Robert; Chumbley, Stephen; Budzbon, Przemysław (1995). Conway's all the World's Fighting Ships 1947-1995. Annapolis, MD: Naval Institute Press. ISBN 1-55750-132-7. OCLC 34267261. {{cite book}}: Cite has empty unknown parameter: |month= (help)