5 cm SK L/40
A 5 cm SK L/40 gun on a center pivot mount.
Type	Naval gun
Place of origin	German Empire
Service history
In service	1892−1945
Used by	German Empire Nazi Germany Belgium The Netherlands
Wars	World War I World War II
Production history
Designed	1892
Produced	5 cm SK L/40 - 1892 5 cm Tbts KL/40 - 1913
Specifications
Mass	240 kg (530 lb)
Length	2 m (6 ft 7 in)
Barrel length	1.83 m (6 ft) L/40 caliber
Shell	Fixed QF 52 x 333R[1]
Shell weight	1.75 kg (3.9 lb)
Caliber	50 mm (2 in)
Breech	Horizontalsliding-wedge
Elevation	-5° to +20°
Traverse	360°
Rate of fire	10 rpm
Muzzle velocity	656 m/s (2,150 ft/s)
Maximum firing range	6.2 km (3.9 mi) at +20°[2]

The5 cm SK L/40 gun^{[Note 1]} was a Germannaval gun used inWorld War I andWorld War II.

The 5 cm SK L/40 gun was primarily used as an anti-torpedo boat gun aboardavisos,corvettes,gunboats,protected cruisers,submarines,torpedo boats, andunprotected cruisers. It was used by the navies of theGerman Empire,Nazi Germany,Belgium, andThe Netherlands.

Ship classes that carried the 5 cm SK L/40 include:

• A-class torpedo boats
• Type UB II submarines
• S7-class torpedo boats
• S66-class torpedo boats
• G88-class torpedo boats
• S90-class torpedo boats
• Irene-class cruisers

• List of naval guns
• 5.2 cm SK L/55 naval gun

• Campbell, John (2002).Naval Weapons of World War Two. London: Conway Maritime Press.ISBN 0-87021-459-4.
• Reichs-Marine-Amt, ed. (1898).Die 5 cm Schnelllade-Kanone L/40 in Torpedoboots-Laffete C/92 und ihre Munition, nebst Vorschriften für die Behandlung und Bedienung. E. S. Mittler.OCLC 461072478.
• Friedman, Norman (2011).Naval Weapons of World War One: Guns, Torpedoes, Mines, and ASW Weapons of All Nations: An Illustrated Directory. Annapolis, MD: Naval Institute Press.ISBN 978-1848321007.

• http://www.navweaps.com/Weapons/WNGER_5cm-40_skc93.htm

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