Engineering:Émeraude-class submarine (1937)

Class overview
Name:	Émeraude class
Operators:	French Navy
Preceded by:	Roland Morillot class
Succeeded by:	Phénix class
Planned:	4
Completed:	0
General characteristics
Type:	Minelaying submarine
Displacement:	862 t (848 long tons) (surfaced) 1,119 t (1,101 long tons) (submerged)
Length:	72.7 m (238 ft 6 in) (o/a)
Beam:	7.36 m (24 ft 2 in)
Draft:	4.1 m (13 ft 5 in)
Installed power:	2,000 bhp (1,500 kW) (diesels) 1,270 shp (950 kW) (electric motors)
Propulsion:	2 × shafts; 2 × diesel engines 2 × electric motors
Speed:	15 knots (28 km/h; 17 mph) (surfaced) 9 knots (17 km/h; 10 mph) (submerged)
Range:	5,600 nmi (10,400 km; 6,400 mi) at 12 knots (22 km/h; 14 mph) surfaced 90 nmi (170 km; 100 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Complement:	43
Armament:	4 × 550 mm (21.7 in) torpedo tubes 1 × 100 mm (3.9 in) deck gun 2 × 13.2 mm (0.52 in) machine guns 40 mines

The Émeraude-class submarines were a quartet of four minelaying submarines that were ordered for the French Navy during the 1930s. Only the name boat was laid down before the German invasion of France on 10 May 1940 and she was demolished before she could be launched.

Ships

Ship	Laid down	Launched	Fate
Émeraude (Q197)			Demolished on the slipway, 23 June 1940
Agate (Q208)			Cancelled, 1940
Corail (Q209)
Escarboucle (Q210)

Bibliography

• Gardiner, Robert; Chesneau, Roger, eds (1980). Conway's All the World's Fighting Ships 1922–1946. London: Conway Maritime Press. ISBN 0-85177-146-7. 

External links

• French Submarines: 1863 - Now
• Sous-marins Français 1863 - (French)