Kolberg-class cruiser

The Kolberg class was a group of four light cruisers, Kolberg, Mainz, Cöln and Augsburg, built for the German Imperial Navy between 1908 and 1910 and used in the First World War. Each was armed with twelve 10.5 cm guns and designed for a speed of 25.5 knots, driven by steam turbines fed by coal-fired water-tube boilers, and each ship was fitted with a different turbine arrangement so that the navy could compare them. Mainz, ordered as Ersatz Jagd, was laid down in 1907 at the AG Vulcan shipyard in Stettin, while Kolberg was laid down at Schichau in Danzig. Mainz and Cöln were sunk in the battle of 28 August 1914, Kolberg and Augsburg were modernized in 1916 and 1917, and Augsburg was surrendered to Japan after the war and sold for scrap.