French destroyer Capitaine Mehl

Capitaine Mehl was one of a dozen Bouclier-class destroyers built for the French Navy in the first decade of the 20th century.

Sister ship Bouclier underway
History
France
Name	Capitaine Mehl
Builder	Ateliers et Chantiers de la Loire, Saint-Nazaire
Laid down	1910
Launched	20 April 1912
Completed	1912
Stricken	10 July 1926
General characteristics (as built)
Class and type	Bouclier-class destroyer
Displacement	720–756 t (709–744 long tons)
Length	72.3–78.3 m (237 ft 2 in – 256 ft 11 in) (o/a)
Beam	7.6–8 m (24 ft 11 in – 26 ft 3 in)
Draft	2.9–3.3 m (9 ft 6 in – 10 ft 10 in)
Installed power	4 water-tube boilers 13,000 shp (9,694 kW)
Propulsion	2 shafts; 2 steam turbines
Speed	30 knots (56 km/h; 35 mph)
Range	1,200–1,600 nmi (2,200–3,000 km; 1,400–1,800 mi) at 12–14 knots (22–26 km/h; 14–16 mph)
Complement	80–83
Armament	2 × 100 mm (3.9 in) Mle 1893 guns 4 × 65 mm (2.6 in) Mle 1902 guns 2 × twin 450 mm (17.7 in) torpedo tubes

Design and description

The Bouclier class were designed to a general specification and varied significantly from each other in various ways. The ships had an overall length of 74–78.3 meters (242 ft 9 in – 256 ft 11 in), a beam of 7.6–8 meters (24 ft 11 in – 26 ft 3 in), and a draft of 2.9–3.1 meters (9 ft 6 in – 10 ft 2 in). Designed to displace 800 metric tons (787 long tons), they displaced 720–756 t (709–744 long tons) at normal load. Their crew numbered 80–83 men.

The ships were powered by a pair of Parsons steam turbines, each driving one propeller shaft using steam provided by four water-tube boilers. The engines were designed to produce 13,000 shaft horsepower (9,700 kW) which was intended to give the ships a speed of 30 knots (56 km/h; 35 mph). Capitaine Mehl handily exceed that speed, reaching 31.8 knots (58.9 km/h; 36.6 mph) during her sea trials. The ships carried enough fuel oil to give them a range of 1,200–1,600 nautical miles (2,200–3,000 km; 1,400–1,800 mi) at cruising speeds of 12–14 knots (22–26 km/h; 14–16 mph).

The primary armament of the Bouclier-class ships consisted of two 100-millimeter (3.9 in) Modèle 1893 guns in single mounts, one each fore and aft of the superstructure, and four 65-millimeter (2.6 in) Modèle 1902 guns distributed amidships. They were also fitted with two twin mounts for 450-millimeter (17.7 in) torpedo tubes amidships.

During World War I, a 45-millimeter (1.8 in) or 75-millimeter (3 in) anti-aircraft gun, two 8-millimeter (0.31 in) machine guns, and eight or ten Guiraud-type depth charges were added to the ships. The extra weight severely overloaded the ships and reduced their operational speed to around 26 knots (48 km/h; 30 mph).

Construction and career

Capitaine Mehl was ordered from Ateliers et Chantiers de la Loire and was launched from its Saint-Nazaire shipyard on 20 April 1912. The ship was completed later that year.

Bibliography

• Couhat, Jean Labayle (1974). French Warships of World War I. London: Ian Allan. ISBN 0-7110-0445-5.
• Prévoteaux, Gérard (2017). La marine française dans la Grande guerre: les combattants oubliés: Tome I 1914–1915 [The French Navy during the Great War: The Forgotten Combatants, Book I 1914–1915]. Collection Navires & Histoire des Marines du Mond. Vol. 23. Le Vigen, France: Éditions Lela presse. ISBN 978-2-37468-000-2.
• Prévoteaux, Gérard (2017). La marine française dans la Grande guerre: les combattants oubliés: Tome II 1916–1918 [The French Navy during the Great War: The Forgotten Combatants, Book II 1916–1918]. Collection Navires & Histoire des Marines du Mond. Vol. 27. Le Vigen, France: Éditions Lela presse. ISBN 978-2-37468-001-9.
• Roberts, Stephen S. (2021). French Warships in the Age of Steam 1859–1914: Design, Construction, Careers and Fates. Barnsley, UK: Seaforth Publishing. ISBN 978-1-5267-4533-0.
• Smigielski, Adam (1985). "France". In Gray, Randal (ed.). Conway's All the World's Fighting Ships 1906–1921. Annapolis, Maryland: Naval Institute Press. pp. 190–220. ISBN 0-87021-907-3.