French submarine Berthelot

A postcard of sister ship Monge underway before 1915
History
France
Name	Berthelot
Builder	Arsenal de Rochefort
Laid down	1906
Launched	18 May 1909
Completed	1 February 1910
Stricken	1 December 1919
Identification	Pennant number: Q66
General characteristics (as built)
Class and type	Template:Sclass-
Displacement	404 t (398 long tons) (surfaced) 553 t (544 long tons) (submerged)
Length	51.12 m (167 ft 9 in) (o/a)
Beam	4.96 m (16 ft 3 in)
Draft	3.15 m (10 ft 4 in)
Installed power	700 PS (510 kW; 690 bhp) (steam) 2 × Du Temple boilers 400 PS (290 kW; 390 bhp) (electric motors)
Propulsion	2 × shafts; 2 × Triple-expansion steam engines 2 × electric motors
Speed	12 knots (22 km/h; 14 mph) (surfaced) 8 knots (15 km/h; 9.2 mph) (submerged)
Range	1,000 nmi (1,900 km; 1,200 mi) at 8.5 knots (15.7 km/h; 9.8 mph) (surfaced) 27 nmi (50 km; 31 mi) at 5 knots (9.3 km/h; 5.8 mph) (submerged)
Complement	2 officers and 23 crewmen
Armament	1 × twin 450 mm (17.7 in) Drzewiecki drop collar 4 × external 450 mm torpedo launchers (2 × facing forward, 2 × aft)

Berthelot was one of 18 Template:Sclass-s built for the French Navy in the first decade of the 20th century.

See also

• List of submarines of France

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.