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Concept
Canon de 30,5 cm SK L/50
Résumé
The 30.5 cm SK L/50 gun was a heavy German gun mounted on 16 of the 26 German capital ships built shortly before World War I. Designed in 1908, it fired a shell in diameter and entered service in 1911 when the four s carrying it were commissioned into the High Seas Fleet.
It was also fitted on the subsequent five and four s and the three s. The guns were used to great effect at the Battle of Jutland on 31 May – 1 June 1916, when the two Derfflinger-class ships, and , used them to destroy the British battlecruisers and . The gun was eventually superseded in German naval use by the much larger and more powerful 38 cm SK L/45.
Before World War I, 30.5 cm SK L/50 guns were emplaced on the islands of Helgoland and Wangerooge to defend Germany's North Sea coast. One battery was emplaced during the war to defend the port of Zeebrugge in Occupied Flanders. The guns on Helgoland were destroyed by the victorious Allies at the end of the war, but the battery at Wangerooge survived intact. Three of its guns were transferred to Helgoland after the island was remilitarized in 1935. During the Second World War, the other three guns were transferred to France and employed in coastal defense positions along the English Channel.
The 30.5 cm SK L/50 guns were mounted in twin gun turrets. The Helgoland-class ships used six Drh LC/1908 mountings; these turrets had -thick roofs and -thick sides. Later ship classes used improved designs. The Kaiser class carried five Drh LC/1909 gun houses, while the subsequent König class carried five turrets of the Drh LC/1911 type. The primary improvement for the LC/1909 turret was an increase in armor thickness of the roof, from 100 mm to 300 mm; side armor remained the same. The turret roofs on the LC/1911 mounts were reduced to ; again, the sides remained at a thickness of 300 mm. Derfflinger and Lützow used four Drh LC/1912 mountings, while their half sister carried an improved Drh LC/1913 type. The LC/1912 mounts had 110 mm-thick roofs and 270 mm-thick sides.
Source officielle
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