15 cm SK L/45
Naval gun
From Wikipedia, the free encyclopedia
The 15 cm SK L/45[Note 1] was a German naval gun used in World War I and World War II.
| 15 cm SK L/45 | |
|---|---|
| Type | Naval gun Railroad gun Coastal artillery |
| Place of origin | German Empire |
| Service history | |
| In service | 1908â45 |
| Used by | Germany |
| Wars | World War I World War II |
| Production history | |
| Designer | Krupp |
| Designed | 1906 |
| Manufacturer | Krupp |
| Produced | 1908 |
| Specifications | |
| Mass | 5,730 kilograms (12,630 lb) |
| Length | 6.71 metres (22 ft 0 in) |
| Barrel length | 6.32 metres (20 ft 9 in)L/45 |
| Shell | separate loading quick fire |
| Caliber | 149.1 millimetres (5.87 in) |
| Breech | horizontal sliding-wedge |
| Recoil | Hydro-spring |
| Elevation | See table |
| Traverse | â150° to +150° |
| Rate of fire | 5-7 rpm |
| Muzzle velocity | 840 metres per second (2,800 ft/s) |
| Maximum firing range | See table |
Naval service
The 15 cm SK L/45 was a widely used naval gun on many classes of World War I dreadnoughts and cruisers in both casemates and turrets. It was constructed of an A tube and two layers of hoops with a Krupp horizontal sliding-wedge breech block. During World War I a few pre-war cruisers that were armed with 10.5 cm guns were rearmed with these weapons. In World War II the 15 cm SK L/45 was widely used as coastal artillery and as primary armament on German auxiliary cruisers.
Ship classes that carried the 15 cm SK L/45 include:
| Type of mount | Designation | Weight | Elevation | Range (during World War I) | Ship classes |
|---|---|---|---|---|---|
| Single pedestal mounts in casemates | MPL C/06 | 15,770 kg (34,770 lb) | â7° to +20° | 14.9 km (9.3 mi) at 20° | Nassau, Helgoland, and Kaiser classes, SMS Von der Tann, Moltke class, SMS Blücher |
| MPL C/06.11 | 16,533 kg (36,449 lb) | â10° to +19° | 13.5 km (8.4 mi) at +19 | König class, Seydlitz, Derfflinger class, Lützow | |
| MPL C/13 | 17,950 kg (39,570 lb) | â8.5° to +19 | 13.5 km (8.4 mi) at +19 | Bayern class, Hindenburg, Mackensen class | |
| MPL C/13 mod | 18,350 kg (40,450 lb) | â8.5° to +22 | 15.8 km (9.8 mi) at +22 | Wartime modification to MPL C/13 | |
| Single pedestal mounts in open half-shields | MPL C/14 | 16,185 kg (35,682 lb) | â10° to +22° | 15.8 km (9.8 mi) at +22 | Wiesbaden class, Königsberg class |
| MPL C/16 | 17,116 kg (37,734 lb) | â10° to +27° | 16.8 km (10.4 mi) at +27 | Cöln class, SMS Emden | |
| MPL C/16 mod | â10° to +30 | 17.6 km (10.9 mi) at +30 | wartime modification to MPL C/16 |
Ammunition
Ammunition was of separate loading quick fire type. The projectiles were 61 cm (2 ft) long with a single bagged charge which weighed 13â14 kg (29â31 lb).
The gun was able to fire:
- Armor piercing 45.3 kg (100 lb)
- High explosive base fuzed 45.3 kg (100 lb)
- High explosive nose fuzed 45.3 kg (100 lb)
- Common shell 45.3 kg (100 lb)
Coast defense gun


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)
Railroad gun
It was also used as a railroad gun during World War I.
See also
Weapons of comparable role, performance and era
- BL 6 inch Mk XII naval gun British equivalent