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	Unidentified Bellone-class submarine underway at Toulon, 1914–18
History
France
Name	Hermione
Ordered	1 January 1913
Builder	Arsenal de Toulon
Laid down	14 April 1913
Launched	15 March 1917
Commissioned	5 February 1918
Stricken	29 July 1935
Identification	Pennant number: Q103
Fate	Sold for scrap,
General characteristics (as built)
Class and type	Bellone-class submarine
Displacement	540 t (531 long tons) (surfaced); 804 t (791 long tons) (submerged);
Length	60.6 m (198 ft 10 in) (o/a)
Beam	5.4 m (17 ft 9 in) (deep)
Draft	3.41 m (11 ft 2 in)
Installed power	2 × 900 PS (660 kW; 890 hp) diesel engines; 2 × 400 PS (290 kW; 390 hp) electric motors;
Propulsion	2 shafts
Speed	14 knots (26 km/h; 16 mph) (surfaced); 9.5 knots (17.6 km/h; 10.9 mph) (submerged);
Range	2,300 nmi (4,300 km; 2,600 mi) at 10 knots (19 km/h; 12 mph) (surfaced); 100 nmi (190 km; 120 mi) at 5 knots (9.3 km/h; 5.8 mph) (submerged);
Test depth	50 m (164 ft 1 in)
Complement	28 crew
Armament	2 × external bow 450 mm (17.7 in) torpedo tubes; 2 × external stern 450 mm torpedo tubes; 4 × single 450 mm rotating torpedo launchers; 1 × single 75 mm (3.0 in) Canon de 75 modèle 1897 deck gun;

The French submarine Hermione was one of three Bellone-class submarines built for the French Navy during World War I.

Notes

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 (2000). Des Clorinde (1912-1916) aux Diane (1912–1917). L'odyssée technique et humaine du sous-marin en France (in French). Vol. 3–1. Bourg-en-Bresse, France: Marines édition. ISBN 2-909675-54-8.
Roche, Jean-Michel (2005). "Classement par types". Dictionnaire des bâtiments de la flotte de guerre française de Colbert à nos jours 2, 1870 - 2006. Toulon: Roche. ISBN 978-2-9525917-0-6. OCLC 165892922.