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20.3 cm SK C/34 naval gun

Field	Value
name	20.3 cm SK C/34 naval gun
image	Prinz Eugen Kiel rear guns.jpg
image_size	300
caption	Aft turrets of Prinz Eugen, Kiel, 1941
origin	Germany
type	Naval gun
Coastal defence
is_ranged	YES
is_artillery	YES
service	1939 – 1945
used_by	Kriegsmarine
wars	Second World War
weight	20.7 tonnes
length	12.15 m
(60 calibres)
cartridge	122 kg
caliber	20.3 cm
rate	4 – 5 rounds per minute
velocity	925 m/s
max_range	33.5 km
elevation	-10° to +37°

Coastal defence (60 calibres)

The 20.3 cm SK C/34SK – Schnelladekanone (quick loading cannon); C – Construktionsjahr (year of design) was the main battery gun used on the German Admiral Hipper-class heavy cruisers.

Description

These built-up guns consisted of a rifled tube encased within an inner and outer jacket with a horizontal sliding breech block. The breech was sealed with an 18 kg (40 lb) brass case containing 30 kg (66 lb) of smokeless powder with a 160 gram (5.6 oz) gunpowder igniter. A cloth bag containing an additional 21 kg (40 lb) of smokeless powder and 380 grams (13 oz) of gunpowder was loaded between the projectile and the brass case. Each gun could fire approximately five rounds per minute. Useful life expectancy was 510 effective full charges (EFC) per barrel.

Naval service

, , and each mounted eight of these guns in 248-tonne Drh LC/34 twin turrets with a maximum elevation of 37 degrees.

Coast defence guns

The four turrets intended for the incomplete cruiser were installed as coastal artillery in France. The turrets A (Anton) and D (Dora) at Battery Karola on the Ile de Re (4./Marine Artillerie Abteilung 282). And the turrets B (Bruno) and C (Cäsar) at Battery Seydlitz on the Ile de Croix (5./Marine Artillerie Abteilung 264).

Railway guns

Eight barrels from the incomplete cruiser were given to the army and followed rebuild to 20.3 cm K (E) railway guns.

Shell trajectory

Range	Elevation	Time of flight	Descent	Impact velocity
5 km	1° 54	6 sec	2° 6	744 m/s
10 km	4° 24	14 sec	6° 6	587 m/s
15 km	8° 6	23 sec	12° 48	463 m/s
20 km	13° 18	36 sec	23° 36	382 m/s
25 km	20° 18	51 sec	36° 48	353 m/s
30 km	29° 6	69 sec	48° 48	363 m/s

Footnotes

Notes

Citations

References

Whitley 1995 p.57
Campbell 1985 pp.235–237

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

naval-guns-of-germany 203-mm-artillery world-war-ii-naval-weapons coastal-artillery military-equipment-introduced-in-the-1930s

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