Back Canó naval de 10,5 cm SK L/40 Catalan 10,5-cm-Schnelladekanone L/40 German Cañón naval 105 mm SK L/40 Spanish Canon de 10,5 cm SK L/40 French 10.5 cm SK L/40 Japanese Canhão naval de 10.5 cm SK L/40 Portuguese
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| 10.5 cm SK L/40 | |
|---|---|
 A gun salvaged from the light cruiser Königsberg and mounted on the gunboat SS Graf von Götzen on Lake Tanganyika | |
| Type | Naval gun |
| Place of origin | German Empire |
| Service history | |
| In service | 1900—1945 |
| Used by | German Empire Weimar Republic Nazi Germany |
| Wars | World War I World War II |
| Production history | |
| Designed | about 1898–1900 |
| Specifications | |
| Mass | 1,555 kg (3,428 lb) |
| Length | 4.475 m (14 ft 8 in) |
| Shell | 105 x 656 mm Fixed QF ammunition |
| Shell weight | 16–17.4 kg (35–38 lb) |
| Caliber | 105 mm (4 in) |
| Breech | Horizontal sliding-block |
| Recoil | Hydro-pneumatic |
| Elevation | -10° to +30° |
| Traverse | 360° |
| Rate of fire | 15 RPM |
| Muzzle velocity | 690 m/s (2,300 ft/s) |
| Maximum firing range | 12,200 m (13,300 yd) at 30° |
The 10.5 cm SK L/40 (SK - Schnelladekanone (quick-loading cannon) L - Länge (with a 40-caliber long barrel) was a German naval gun used in World War I and World War II.