French submarine Opale

A French postcard of Opale on the surface
History
France
Name	Opale
Namesake	Opal
Builder	Arsenal de Cherbourg
Laid down	October 1903
Launched	20 November 1906
Completed	19 December 1908
Stricken	12 November 1919
Identification	Pennant number: Q42
Fate	Sold for scrap, 10 May 1921
General characteristics
Class and type	Template:Sclass-
Displacement	394 t (388 long tons) (surfaced) 427 t (420 long tons) (submerged)
Length	44.9 m (147 ft 4 in) (o/a)
Beam	3.9 m (12 ft 10 in)
Draft	3.8 m (12 ft 6 in)
Installed power	600 PS (440 kW; 590 bhp) (diesels) 600 PS (electric motors)
Propulsion	2 × shafts; 2 × diesel engines 2 × electric motors
Speed	11.25 knots (20.84 km/h; 12.95 mph) (surfaced) 8.5 knots (15.7 km/h; 9.8 mph) (submerged)
Range	2,000 nmi (3,700 km; 2,300 mi) at 7.3 knots (13.5 km/h; 8.4 mph) surfaced 100 nmi (190 km; 120 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth	40 m (130 ft)
Complement	2 officers and 23 crewmen
Armament	6 × 450 mm (17.7 in) torpedo tubes (4 × bow, 2 × stern)

Opale was one of six Template:Sclass-s built for the French Navy in the first decade of the 20th century.

Bibliography

• Couhat, Jean Labayle (1974). French Warships of World War I. London: Ian Allen. 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. {{cite book}}: Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)
• 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.