French sloop Commandant Bory

The Élan class had a (standard displacement) of 630 tonnes (620 long tons) and displaced 895 tonnes (881 long tons) at deep load.^[1] The vessels were 77.5 m (254 ft 3 in) long overall and 73.81 m (242 ft 2 in) between perpendiculars with a beam of 8.92 m (29 ft 3 in) and a draught of 3.13 m (10 ft 3 in) at deep load.^[2] They were powered by two Sulzer diesel engines rated at a total of 3,430 kilowatts (4,600 bhp), each driving one propeller shaft which gave them a speed of 20 knots (37 km/h; 23 mph). The ships carried enough fuel oil to give them a maximum range of 10,000 nmi (18,520 km; 11,508 mi) at 9 knots (17 km/h; 10 mph).^[3] They were fitted with an auxiliary rudder built into the bow.^[4] The ships had a complement of 88 in peacetime and 106 during wartime.^[5]

The main battery of the Élan class was intended to consist of two 100-millimetre (3.9 in) guns in a single twin-gun mounting on the aft superstructure, but the mount was not yet available and a single Canon de 100 mm Modèle 1893 gun was installed aboard Commandant Bory.^[6] Anti-aircraft defense was provided by eight 13.2 mm (0.52 in) Hotchkiss Mle 1929 machineguns. One quadruple mount was positioned forward of the bridge and two twin mounts were located on the forward superstructure between the bridge and the funnel, one on each broadside. The ships were intended to be fitted with a depth charge rack at the stern and four throwers amidships, but shortages of the latter meant that only two throwers were generally carried, one on each side. The Elans initially carried 40 depth charges weighing 100 kg (220 lb) apiece.^[7] The vessels were designed for minesweeping, though never saw service in that capacity.^[1]

• Garier, Gérard (2015). Les avisos-dragueurs de 630 tW du type Élan [The 630-tonne Minesweepers of the Elan Class] (in French). Vol. I: Élan, Commandant Bory, Commandant Delage, Commandant Rivière, Commandant Duboc, Commandant Dominé. Le Vigen, France: Lela Presse. ISBN 978-2-914017-86-2.
• Le Masson, Henri (1969). The French Navy. Navies of the Second World War. Vol. 2. London: MacDonald & Co. (Publishers) Ltd. pp. 16–22. ISBN 9780356023847.
• Roberts, John (1980). "France". In Chesneau, Roger (ed.). Conway's All the World's Fighting Ships 1922–1946. New York: Mayflower Books. pp. 255–279. ISBN 0-8317-0303-2.