RB-Model 350L16 Lufa 15cm German naval guns used in Bismarck, Scharnhorst and other light cruisers

The 15 cm SK C / 28 is a German 150 mm naval cannon from the interwar period and World War II. The weapon was developed in the early 1930s and entered service in the Kriegsmarine in 1935. It was an additional armament for the Bismarck and Scharnhorst battleships and the so-called pocket battleships (German Panzerschiffe) of the Deutschland type. It was also to be used on Graf Zeppelin-class aircraft carriers. The Rheinmetall plant was responsible for the development and production of the 15 cm SK C / 28 gun. The total weight of the gun was approx. 9 tons, and its barrel was 7.82 meters long. The initial velocity of the missiles was up to 875 m / s. The cannon fired projectiles weighing 45-47 kilograms, and its maximum firing range was 23,000 meters, while the effective firing range was lower. The maximum theoretical rate of fire for this gun was 8 rounds per minute. However, this was a very difficult result to achieve in combat conditions. The presented cannon was most often mounted in towers Drh LC / 34 with two guns of this type. The presented gun was in fact a smaller and "slimmed" version of the 15 cm SK C / 25 gun used on cruisers of the Königsberg and Leipzig class.