The 38 cm SK C/34 [Note 1] naval gun was developed by Germany mid to late 1930s. It armed the Bismarck-class battleships and was planned as the armament of the O-class battlecruisers and the re-armed Scharnhorst-class battleships.

Used on the famous Bismarck class battleships, this weapon is usually - but incorrectly - referred to as being 47 calibers long, but it was actually 51.66 calibers in overall length (German Method) and 48.43 calibers in bore length (USA/UK Method).

Forward 28 cm turrets of Scharnhorst. U.S. Naval Historical Center Photograph # NH 101571. This weapon was used for the small battleships Scharnhorst and Gneisenau and was an improved version of the 28 cm SK C/28 gun used for the Deutschland class Panzerschiffes.

There were three versions of this weapon; the original prototype for proof and experimental testing; three guns built to the naval pattern and intended for the "H" battleships; and eight finished to a modified design for coastal artillery use and also known as Adolph.

Ballistic performance, range and penetration for the 38 cm SK C/34 naval guns mounted on the German battleships of the Bismarck class.

Forward turrets of heavy cruiser Prinz Eugen in 1940. This was the only 20.3 cm (8") weapon ever designed by Germany and was quite powerful with a long range. Two of the turrets intended for the uncompleted Seydlitz were mounted as coastal artillery on Ile De Croix.

38 cm/52 (14.96") SK C/34 Updated 16 April 2012 Used on the famous Bismarck class battleships, this weapon is usually - but incorrectly - referred to as being 47 calibers long, but it was actually 51.66 calibers in length.

The 38 cm SK C/34 naval gun was developed by Germany mid to late 1930s. It armed the Bismarck-class battleships and was planned as the armament of the O-class battlecruisers and the re-armed Scharnhorst-class battleships.

The 12.7 cm SK C/34 [Note 1] was a German medium-caliber naval gun deployed on destroyers from 1934 through the Second World War. Some of these guns remained in service until 2003 in the coastal defense units of Norway.

Stern 12.7 cm/45 SK C/34 guns on an unidentified Type 34 destroyer. Diagram from "German Destroyers of World War Two" by M.J. Whitley. 12,7 cm Spgr. L/4,4 Kz (m.Hb).