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Concept
Classe Gueydon
Résumé
The Gueydon-class cruiser was a three-ship class of armored cruisers built in the first decade of the twentieth century for the French Navy (Marine Navale).
Designed by the naval architect Emile Bertin, the Gueydon-class ships were intended to be smaller and cheaper than the preceding armored cruiser design, . Like the older ship, they were intended to fill the commerce-raiding strategy of the Jeune École. The ships measured long overall with a beam of and had a maximum draft of . They displaced . They had a crew of 566 officers and enlisted men.
The Gueydon class had three vertical triple-expansion steam engines, each driving a single propeller shaft. Steam for the engines was provided by 20 or 28 boilers and they were rated at a total of that gave them a speed of . The ships carried up to of coal and could steam for at a speed of .
The ships of the Gueydon class had a main armament that consisted of two 40-caliber guns that were mounted in single gun turrets, one each fore and aft of the superstructure. Their secondary armament comprised eight 45-caliber quick-firing (QF) guns in casemates. For anti-torpedo boat defense, they carried four 45-caliber QF guns on the forecastle deck, ten QF and four QF Hotchkiss guns. They were also armed with two submerged torpedo tubes.
The Harvey armor belt of the Gueydon-class cruisers extended from below the waterline to the main deck. It reached the upper deck for a length of from the bow and covered the entire length of the ship except for of the stern where it ended in a transverse bulkhead thick. The lower strake of armor was generally thick, although it reduced to forward, aft, and thinned to at its lower edge. The upper strake of armor had thicknesses of and between the main and upper decks.
The curved lower protective deck ranged in thickness from 2 to 2.2 inches. In addition there was a light armor deck thick at the top of the lower armor strake. A watertight internal cofferdam, filled with cellulose, stretched between these two decks. The gun turrets were protected by armor and had roofs thick.
Source officielle
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