15 cm Schnelladekanone C/28 in Mörserlafette
              < 15 cm Schnelladekanone C 
 
            
          | 15 cm SchiffsKanone C/28 in Mörserlafette | |
|---|---|
| Type | Heavy gun | 
| Place of origin | Nazi Germany | 
| Service history | |
| Used by | Nazi Germany | 
| Wars | World War II | 
| Production history | |
| Designer | Rheinmetall | 
| Manufacturer | Rheinmetall | 
| Produced | 1941 | 
| No. built | 8 | 
| Specifications | |
| Mass | 16,870 kilograms (37,190 lb) | 
| Barrel length | 8.195 metres (322.6 in) L/55 | 
| Shell | separate-loading, cased charge | 
| Caliber | 149.1 millimetres (5.87 in) | 
| Breech | horizontal sliding block | 
| Recoil | dual-recoil hydropneumatic | 
| Carriage | box trail | 
| Elevation | 0° to +50° | 
| Traverse | 16° on carriage 360° on platform | 
| Rate of fire | 2 rpm | 
| Muzzle velocity | 890 metres per second (2,900 ft/s) | 
| Maximum firing range | 23.7 kilometres (14.7 mi) | 
The 15 cm SchiffsKanone C/28 in Mörserlafette (SK C/28 in Mrs Laf) was a German heavy gun used in the Second World War.