17 cm SK L/40 gun
| 17 cm SK L/40 | |
|---|---|
Guns in turret (upper) and casemate (lower) on SMS Hessen
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| Type | Naval gun Railway gun Coast-defence gun |
| Place of origin |  German Empire |
| Service history | |
| In service | 1906—45 |
| Used by | German Empire Nazi Germany |
| Wars | World War I World War II |
| Production history | |
| Designed | 1904—06 |
| Specifications | |
| Weight | 10.7 metric tons (10.5 long tons; 11.8 short tons) |
| Length | 6.904 meters (22 ft 7.8 in) |
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| Shell | separate-loading, case charge |
| Shell weight | about 62.8 kg (138 lb) |
| Caliber | 172.6 millimeters (6.80 in) |
| Breech | horizontal sliding-wedge |
| Muzzle velocity | 875 m/s (2,870 ft/s) |
The 17 cm SK L/40[Note 1] was a German naval gun that was used in the two World Wars. Originally a naval gun, it was adapted for land service during World War I.
Contents
Description
The 17 cm SK L/40 gun weighed 10.7 metric tons (10.5 long tons; 11.8 short tons), had an overall length of 6.904 meters (22 ft 7.8 in). Although designated as 17 centimeters (6.7 in), its actual caliber was 17.26 centimeters (6.80 in). It used the Krupp horizontal sliding block, or "wedge", as it is sometimes referred to, in a breech loading design, rather than the interrupted screw commonly used in the heavy guns of other nations. This required that the propellant charge be loaded in a metal, (usually brass), case which provides obduration, i.e. seals the breech to prevent escape of the expanding propellant gas.
World War I
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A number of guns were used as towed artillery and railway guns during World War I.
World War II
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Six guns dismounted from obsolete battleships were used as railway guns from 1938 onwards.
See also
Footnotes
- Notes
- ↑ SK - Schnelladekanone (quick loading cannon); L - Länge in Kaliber (length in caliber)
- Citations
References
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External links
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