| 8.8 cm SK C/31 | |
| Origin: | Germany |
| Type: | Naval gun Anti-aircraft gun |
| Is Ranged: | y |
| Is Explosive: | yes |
| Is Artillery: | yes |
| Service: | 1933—45 |
| Used By: | Nazi Germany |
| Wars: | World War II |
| Design Date: | 1931–33 |
| Weight: | about 4255kg (9,381lb) |
| Length: | about 6.87m (22.54feet) |
| Part Length: | 6.341m (20.804feet) (bore length) |
| Cartridge: | Fixed |
| Cartridge Weight: | 9kg-9.4kgkg (20lb-20.7lbkg) |
| Caliber: | 88mm |
| Velocity: | 1060m/s |
| Max Range: | Horizontal: 17800m (58,400feet) at 45° Vertical: 13300m (43,600feet) at +80° |
| Breech: | vertical sliding-block |
| Elevation: | -10° to +80° |
| Traverse: | 360° |
The 8.8 cm SK C/31[1] was a German naval gun that was used in World War II.
The 8.8 cm SK C/31 gun weighed 4255kg (9,381lb), had an overall length of 6.87m (22.54feet) and its bore length was 6.341m (20.804feet). It used a vertical sliding-block breech design. The gun was normally on the twin gun carriage (de|Doppel Lafette|link=no or abbreviated Dopp. L) C/31, the mount plus guns weighed 27300kg (60,200lb). The C/31 mount was later modified to carry the 10.5 cm SK C/33 naval gun. Useful life expectancy was fairly short 1,500 effective full charges (EFC) per barrel.
Only the heavy cruiser (German: Panzerschiff) Deutschland received the gun, six 8.8 cm SK C/31 were briefly installed, replacing its three obsolete 8.8 cm SK L/45 naval guns, though in 1940 these were again replaced with six 10.5 cm C/33 L/65 guns. Other German capital ships were equipped with a new version of the 8.8 cm gun, the 8.8 cm SK C/32 naval gun which used a shorter shell and were also mounted in a slightly modified carriage, the C/32 which had a slightly larger pivot mount.
Fixed type ammunition with and without tracer, which weighed 18.5kg (40.8lb), with a projectile length of 1227.5mm was fired. Ammunition Types Available: