| 15 cm SK C/28 | |
|---|---|
 15 cm SK C/28 in Drh LC/34 turret from Gneisenau used as coast-defense guns in Denmark | |
| Type | Naval gun Coastline-defence gun |
| Place of origin | Nazi Germany |
| Service history | |
| In service | 1935–2001 |
| Used by | Nazi Germany Denmark |
| Wars | Second World War |
| Production history | |
| Designer | Rheinmetall |
| Designed | 1930—35 |
| Manufacturer | Rheinmetall |
| Produced | 1935—43? |
| Specifications | |
| Mass | 9,026–9,080 kg (19,899–20,018 lb) |
| Length | 8.291 metres (27 ft 2 in) |
| Barrel length | 7.815 metres (25 ft 8 in) |
| Shell | separate-loading, cased charge |
| Caliber | 149.1 millimetres (5.87 in) |
| Breech | semi-automatic, vertical sliding-block |
| Elevation | depends on the mount |
| Traverse | depends on the mount |
| Rate of fire | 8 rpm (maximum) |
| Muzzle velocity | 875 m/s (2,870 ft/s) |
| Maximum firing range | 23,000 metres (25,000 yd) at 40° |
The 15 cm SK C/28[Note 1] was a German medium-caliber naval gun used during the Second World War. It served as the secondary armament for the Bismarck class and Scharnhorst-class battleships, Deutschland-class cruisers and the Graf Zeppelin-class aircraft carriers. A number of surplus weapons were used as coast-defense guns and eight were adapted to use Army carriages and used as heavy field guns as the 15 cm Schiffskanone C/28 in Mörserlafette.
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