10.5 cm SK L/45 naval gun

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10.5 cm SK L/45
The gun from the submarine SM UB-91, displayed as a memorial at Chepstow in Wales
Type	Naval gun
Place of origin	German Empire
Service history
In service	1907–1945
Used by	German Empire Nazi Germany
Wars	World War I World War II
Production history
Designed	About 1906–1907
Manufacturer	Peddinghaus
Specifications
Mass	1,450 kg (3,200 lb)
Length	4.725 m (15 ft 6.0 in)
Width	6.8 mm (0.27 in)
Shell	Fixed Brass Casing: 25.5 kg (56 lb)
Shell weight	17.4 kg (38 lb)
Caliber	10.5 cm (4.1 in)
Breech	Horizontal sliding-block
Elevation	Dependent on mounting: MPL C/06: -10° to +30° Tbts LC/16: -10° to +50° Ubts LC/16: -10° to +50° Flak 45: -5° to +70° MPLC/30: -9° to +80°[1]
Traverse	360°
Rate of fire	15 RPM
Muzzle velocity	710 m/s (2,300 ft/s)
Effective firing range	12,700 m (41,700 ft)
Maximum firing range	Horizontal: 12,700 m (13,900 yd) at 30° Vertical: 8,230 m (27,000 ft) at 80°

The 10.5 cm SK L/45 (Schnelladekanone Länge 45, quick-loading cannon with a barrel length of 45 calibers) was a German naval gun that was used in World War I and World War II and was the successor of the older 10.5 cm SK L/40 naval gun.