Pluton-class Minelayer (1912)

The ''Pluton''-class minelayers were a pair of ships built just before World War I for the French Navy as their first purpose-built minelayers. They spent the first few months of the war laying minefields off captured Belgian ports and in the English Channel in conjunction with British ships. ''Pluton'' remained there for the rest of the war, but ''Cerbère'' was transferred to the eastern Mediterranean Sea in 1915. The ship laid minefields off the Syrian coast and the Dardanelles. Later in the war she laid minefields in the southern Adriatic as well. Both ships were struck from the Navy List in 1921 and sold for scrap.

Design and description

The French Navy noted the effectiveness of mines during the Russo-Japanese War of 1904–05 and experimented with them by converting two elderly torpedo-gunboats in 1911–12. They were not very successful and the French concluded that specially designed ships were necessary. Two new minelayers were ordered as part of the 1912 Naval Program, and , the first purpose-built minelayers of the French Navy.Simpson, p. 228

General description

The ''Pluton''-class ships had an overall length of and a length between perpendiculars of . They had a beam of , and a draft of . The ships displaced at normal load and at deep load.

''Pluton'' and ''Cerbère'' were given rudders at bow and stern for the precision maneuvering deemed by the navy to be necessary for their mission. Their hulls were subdivided into ten watertight compartments by transverse bulkheads. They had a crew of three officers and 49 men.

Propulsion

They were powered by two vertical triple-expansion steam engines, each driving a single propeller shaft. The engines developed a total of from two water-tube boilers. On sea trials the ships reached a maximum speed of . The ''Pluton''-class ships carried a maximum of of coal which gave them a range of at .Simpson, pp. 228, 231

Armament

The ''Pluton''-class ships were armed with a single gun mounted in front of the bridge. They carried 140 Sauter-Harle mines. The mines were carried on trolleys that ran on four rails on the mine deck that led to two doors in the stern of the ship, from which they were dropped.Simpson, p. 231

Service

''Cerbère'' was laid down in August 1911 and launched on 13 July 1912 by Chantiers Normand in Le Havre''. Pluton'' was launched on 10 March 1913 by Ateliers et Chantiers de Bretagne in Nantes. Both ships were completed in 1914 and were assigned to the Northern Squadron () in the English Channel under the command of Admiral Rouyer when World War I began. ''Pluton'' captured the German merchant ship SS ''Porto'' in the Channel on 5 August 1914.Smigielski, p. 216 For the rest of 1914 they laid minefields off Ostend, Zeebrugge and other ports in German-occupied Flanders, often in conjunction with, and at the request of, the Royal Navy.
While ''Pluton'' spend the rest of the war in the Channel, ''Cerbère'' was transferred to the Mediterranean in 1915. She laid minefields mostly off the Syrian coast and the Dardanelles before joining the Anglo-French naval force on 31 May 1916 that pressured the Greek government into acceding to Allied demands for control of Greek communications and transportation infrastructure.Newbolt, p. 142 The ship spent the rest of the war operating in the southern Adriatic as well as the eastern Mediterranean. Both ships were deemed surplus to requirements after the end of the war and were scrapped in 1921.

Notes

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{{DEFAULTSORT:Pluton class minelayer
Ships built in France
Minelayers of the French Navy
Minelayers
Ship classes of the French Navy