Bouclier-class destroyer

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Bouclier, lead ship of the class, circa 1914
Class overview
NameBouclier class
Operators French Navy
Preceded byChasseur class
Succeeded byBisson class
Built1909–1913
In commission1911–1933
Completed12
Lost4
Scrapped8
General characteristics
TypeDestroyer
Displacement703–809 t (692–796 long tons)
Length72.3–78.3 m (237 ft 2 in – 256 ft 11 in) (
o/a
)
Beam7.6–8 m (24 ft 11 in – 26 ft 3 in)
Draft2.9–3.3 m (9 ft 6 in – 10 ft 10 in)
Installed power
Propulsion2–3 shafts; 2–3 steam turbines
Speed30 knots (56 km/h; 35 mph)
Range1,200–1,600 nmi (2,200–3,000 km; 1,400–1,800 mi) at 12–14 knots (22–26 km/h; 14–16 mph)
Complement80–83
Armament

The Bouclier class consisted of twelve destroyers built between 1910 and 1912 for the French Navy, four of which were lost during the First World War.

Design and description

The Bouclier-class was nearly double the size of the preceding 450-metric-ton (443-long-ton) destroyers to match the increase in size of foreign destroyers. The French Navy issued a general specification that required oil-fired boilers, steam turbine propulsion and a uniform armament that allowed individual shipyards the freedom to design their ships as they saw fit. This allowed for some variations in size (from 72.32–78.3 meters (237 ft 3 in – 256 ft 11 in) in length) and machinery (Bouclier and Casque had three shafts, all the others had two, while Casque has three funnels, all the rest had four).[1]

Bouclier was the shortest ship with an overall length of 72.32 meters and her sister ships ranged in length from 74 to 78.3 meters (242 ft 9 in to 256 ft 11 in). All of the ships had beams of 7.6–8 meters (24 ft 11 in – 26 ft 3 in) and drafts of 2.9–3.3 meters (9 ft 6 in – 10 ft 10 in). Bouclier and her sister Francis Garnier had the lightest displacements at 692 metric tons (681 long tons); the others displaced 720–756 metric tons (709–744 long tons) at normal load. Their crews numbered 80–83 men.[1]

The destroyers were powered by two or three steam turbines of four different models, each driving one

kW) which was intended to give the ships a speed of 30 knots (56 km/h; 35 mph). During their sea trials, they reached speeds of 29.3–35.5 knots (54.3–65.7 km/h; 33.7–40.9 mph). The ships carried 120–160 t (118–157 long tons) of fuel oil which gave 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).[2]

The primary armament of the Bouclier-class ships consisted of two

amidships. They were also fitted with two twin mounts for 450-millimeter (17.7 in) torpedo tubes amidships.[1]

During World War I, a 45-millimeter (1.8 in) or

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).[1]

Ships

Name Builder Launched Fate
Bouclier Chantiers et Ateliers Augustin Normand, Le Havre 29 June 1911 Struck, 15 February 1933
Boutefeu Dyle et Bacalan, Bordeaux 2 May 1911 Sunk by mine laid by UC-25 off Brindisi, 15 May 1917, during the Battle of the Strait of Otranto
Capitaine Mehl
St. Nazaire
20 April 1912 Struck, 10 July 1926
Casque Forges et Chantiers de la Méditerranée, Le Havre 25 August 1910 Struck, 26 March 1926. Broken up, 1927.
Cimeterre Forges et Chantiers de la Gironde, Bordeaux 13 April 1911 Struck, 10 July 1926
Commandant Bory Dyle et Bacalan, Bordeaux 14 September 1912 Struck, 29 July 1926
Commandant Rivière Forges et Chantiers de la Gironde, Bordeaux 2 October 1912 Struck, June 1933
Dague 13 April 1911 Sunk by a drifting mine in Antivari Roads, 24 February 1915
Dehorter
Ateliers et Chantiers de Penhoët, Saint-Nazaire
18 April 1912 Struck, 1933
Faulx Établissement de la Brosse et Fouché, Nantes 2 February 1911 Accidentally rammed and sunk by Mangini in Strait of Otranto, 18 April 1918
Fourche 21 October 1910 Torpedoed and sunk by U-15, 23 June 1916
Francis Garnier Chantiers et Ateliers Augustin Normand, Le Havre 1 October 1912 Struck, 10 February 1926

Citations

  1. ^ a b c d Gardiner & Gray, p. 203
  2. ^ Couhat, pp. 101, 104

Bibliography