| 15 cm SK L/45 | |
|---|---|
Gun salvaged from SMS Bremse, at the Scapa Flow Visitor Centre, Hoy, Orkney |
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| Type | naval gun railroad gun coast defense gun |
| Place of origin | Germany |
| Service history | |
| In service | 1908—1945 |
| Used by | Germany |
| Wars | World War I, World War II |
| Production history | |
| Designer | Krupp |
| Designed | 1906—08 |
| Manufacturer | Krupp |
| Specifications | |
| Barrel length | 6.71 metres (20 ft) |
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| Shell | separate-loading, case charge |
| Caliber | 149.1 millimetres (5.87 in) |
| Breech | horizontal sliding-wedge |
| Recoil | hydro-spring |
| Muzzle velocity | 840 metres per second (2,800 ft/s) |
The 15 cm SK L/45 (15 cm Schnelladekanone (quick-loading gun)) 45 caliber) was a German naval gun used in World War I and World War II.
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This gun was fitted as the casemate-mounted secondary armament in all Imperial German dreadnought battleships and battlecruisers, the armored cruiser SMS Blücher and as primary armament in the Pillau, Wiesbaden, Königsberg, and Köln-class light cruisers and the Brummer-class minelaying cruisers. After World War I it was fitted to the light cruiser Emden. It was also fitted to German merchant raiders during World War II.
| Type of Mount | Designation | Weight | Elevation | Range (during World War I) | Ship classes |
| Single pedestal mounts in casemates | MPL C/06 | 15,770 kilograms (34,800 lb) | -7° to +20° | 14,900 metres (16,300 yd) | Nassau, Helgoland, Kaiser, von der Tann, Moltke, Blücher |
| MPL C/06.11 | 16,533 kilograms (36,450 lb) | -10° to +19° | 13,500 metres (14,800 yd) | König, Seydlitz, Derfflinger | |
| MPL C/13 | 17,950 kilograms (39,600 lb) | -8.5° to +19 | 13,500 metres (14,800 yd) | Bayern, Hindenburg, Mackensen | |
| MPL C/13 mod | 18,350 kilograms (40,500 lb) | -8.5° to +22 | 15,800 metres (17,300 yd) | Wartime modification to MPL C/13 | |
| Single pedestal mounts in open half-shields | MPL C/14 | 16,185 kilograms (35,680 lb) | -10° to +22° | 15,800 metres (17,300 yd) | Wiesbaden, Königsberg II |
| MPL C/16 | 17,116 kilograms (37,730 lb) | -10° to +27° | 16,800 metres (18,400 yd) | Cöln II, Emden | |
| MPL C/16 mod | -10° to +30 | 17,600 metres (19,200 yd) | wartime modification to MPL C/16 |
It used 45.3 kilograms (100 lb) 15 cm Spgr L/4.1 HE shells with a bursting charge weight between 3.9 kilograms (8.6 lb) and 4.09 kilograms (9.0 lb), depending on how the shell was fuzed.
The same gun was used for coast defense duties in concrete emplacements after World War I. One example was 3./Marine-Artillerie Abteilung 604 ("3rd Battery of Naval Artillery Battalion 604") in Jersey[2]. They show it using 44 kilograms (97 lb) shells with a range of 18,000 metres (20,000 yd)
It was also used as a railroad gun during World War I.