24 cm SK L/40

24 cm SK L/40
SMS Wettin NH 47897.jpg
Twin C/92 turret aboard SMS Wettin
Type Naval gun
Coastal artillery
Place of origin German Empire
Service history
In service 1898-1945
Used by German Empire
Austria-Hungary
Netherlands
Nazi Germany
Wars Boxer Rebellion
World War I
World War II
Production history
Designer Krupp
Designed 1894
Manufacturer Krupp
Produced 1898
Variants Krupp 24 cm L/40 K94
Skoda 24 cm L/40 K97
Skoda 24 cm L/40 K/01
Specifications
Weight 24–25.6 t (26.5–28.2 short tons)
Length 9.5 m (31 ft 2 in)
Barrel length 8.8 m (28 ft 10 in)

Shell Separate loading cased charges and projectiles
Shell weight 140–151 kg (309–333 lb)
Caliber 24 cm (9.4 in) 40 caliber
Breech Horizontal sliding wedge
Recoil hydro-pneumatic
Elevation Naval Mounts: -5° to +30°
Coastal Artillery: -5° to +46°
Traverse -150° to +150°
Rate of fire 3 rpm
Muzzle velocity WWI: 690 m/s (2,300 ft/s)
WWII: 810 m/s (2,700 ft/s)
Maximum firing range WWI: 16.9 km (10.5 mi) at +30°
WWII: 26.6 km (16.5 mi) at +46° [1]

The 24 cm Schnelladekanone Länge 40, abbreviated as 24 cm SK L/40, was a German naval gun developed in the years before World War I that armed a number of the Imperial German Navy's pre-dreadnought battleships and armored cruisers. Later guns removed from these ships were converted to coastal artillery and were used during World War I and World War II. The actual bore diameter was 23.8 cm (9.4 in), but the classification system for artillery rounded up to the next highest centimeter.

History

The 24 cm SK L/40 was designed in 1894 and produced in 1898 by Krupp for the Imperial German Navy. Krupp also produced a variant of the 24 cm SK L/40 for the Austro-Hungarian Navy called the 24 cm L/40 K94 which armed coastal defense ships, pre-dreadnought battleships and armored cruisers. Skoda later produced the Škoda 24 cm L/40 K97 and the Škoda 24 cm L/40 K/01 under license. [2] Krupp 24 cm guns also armed coastal defense ships of the Royal Netherlands Navy. [3]

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