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French submarine Foucault

From Wikipedia, the free encyclopedia

History
France
NameFoucault
NamesakeLéon Foucault
Ordered30 October 1906
BuilderArsenal de Cherbourg
Laid down1 November 1906
Launched15 June 1912
Commissioned20 June 1914
FateSunk in action 15 September 1916
General characteristics (as built)
Class and typeBrumaire-class submarine
Displacement
  • 397 t (391 long tons) (surfaced)
  • 551 t (542 long tons) (submerged)
Length52.15 m (171 ft 1 in) (o/a)
Beam5.42 m (17 ft 9 in)
Draft3.19 m (10 ft 6 in)
Installed power
  • 840 PS (620 kW; 830 bhp) (diesels)
  • 660 PS (490 kW; 650 bhp) (electric motors)
Propulsion
Speed
  • 13 knots (24 km/h; 15 mph) (surfaced)
  • 8.8 knots (16.3 km/h; 10.1 mph) (submerged)
Range
  • 1,700 nmi (3,100 km; 2,000 mi) at 10 knots (19 km/h; 12 mph) (surfaced)
  • 84 nmi (156 km; 97 mi) at 5 knots (9.3 km/h; 5.8 mph) (submerged)
Test depth40 m (130 ft)
Complement2 officers and 27 crewmen
Armament

French submarine Foucault (Q70) was a Laubeuf type submarine[1] of the Brumaire class, built for the French Navy prior to World War I.[2]

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Transcription

Design and construction

Foucault was ordered by the French Navy as part of its 1906 programme and was laid down at the Cherbourg Naval Yard in November of that year. Work progressed slowly, and she was not launched until 15 June 1912. She was commissioned on 20 June 1914. Foucault was equipped with licence-built M.A.N. diesel engines for surface propulsion, and electric motors for power while submerged. She carried eight torpedoes, two internally and six externally.[2] Foucault was named for Léon Foucault, the 19th century French physicist.[3]

Service history

At the outbreak of the First World War Foucault was part of the French Mediterranean Fleet, and sailed with that force to the Adriatic tasked with bringing the Austro-Hungarian fleet to battle or blockading it in its home ports.

On 15 September 1916, while on patrol off Cattaro under the command of Lt. L. Devin, Foucault was spotted under the surface by two Austro-Hungarian Lohner L seaplanes. These were L132, flown by Lts. Konjovics and Sewera, and L135 (Lts. Zelezny and Klimburg). The two planes bombed Foucault, scoring hits which forced her to surface. Unable to dive and without power, Devin ordered her to be abandoned and scuttled. All her crew escaped without casualties. The seaplanes landed and took the crew prisoner, holding them until the arrival of an Austrian torpedo boat. This incident was the first instance of a submarine at sea being sunk by air attack.[4][5]

Notes

  1. ^ Jane p199
  2. ^ a b Conway p209
  3. ^ Castel
  4. ^ Price pxiii-xiv
  5. ^ Sieche

Bibliography

  • Couhat, Jean Labayle (1974). French Warships of World War I. London: Ian Allan. ISBN 0-7110-0445-5.
  • Gardiner, Robert & Gray, Randal (1985). Conway's All The World's Fighting Ships 1906–1921. London: Conway Maritime Press. ISBN 0-85177-245-5.
  • Garier, Gérard (2002). A l'épreuve de la Grande Guerre. L'odyssée technique et humaine du sous-marin en France (in French). Vol. 3–2. Bourg-en-Bresse, France: Marines édition. ISBN 2-909675-81-5.
  • Garier, Gérard (1998). Des Émeraude (1905-1906) au Charles Brun (1908–1933). L'odyssée technique et humaine du sous-marin en France (in French). Vol. 2. Bourg-en-Bresse, France: Marines édition. ISBN 2-909675-34-3.
  • Moore, J: Jane’s Fighting Ships of World War I (1919, reprinted 2003) ISBN 1 85170 378 0
  • Price, A: Aircraft versus Submarine (1973) ISBN 1 84415 091 7

External links

This page was last edited on 22 May 2023, at 23:25
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