28 cm SK L/45 gun

The 28 cm SK L/45 was a German naval gun that was used in World War I and World War II. Originally a naval gun, it was adapted for land service after World War I.

Description

The 28 cm SK L/45 gun weighed, had an overall length of and its bore length was. Although designated as, its actual caliber was. It used the Krupp horizontal sliding-block breech design rather than the interrupted screw commonly used in heavy guns of other nations. This required that the propellant charge be loaded in a metal, usually brass, case which provides obduration i.e. seals the breech to prevent escape of the expanding propellant gas.

Mounted on s and the battlecruiser.

Three guns were mounted at Battery Goeben on Husøya island, near Trondheim, Norway and formed Naval Coast Artillery Battery "Goeben", later 1st Battery, Naval Artillery Battalion 507 "Husöen".
Another three guns were mounted at Battery Tirpitz on the Romanian coast, south of Constanța, from April 1941 to August 1944, when the battery was destroyed by the retreating Germans. The battery, like all Axis forces in Romania, was nominally under Romanian control, but operated by Kriegsmarine personnel, and contributed to the defence of Constanța in 1941.