28 cm SK C/34 naval gun

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28 cm SK C/34 naval gun
File:28 cm sk c-34 unloaded in Bergen before shipping to Sotra and mounted on Fjell festning.jpg
Gun from Gneisenau being unloaded in Bergen, Norway, prior to installation at Fjell festning, late 1942-early 1943
Type Naval gun
Coastal defence
Place of origin Germany
Service history
In service 1934-43
Used by Germany
Wars World War II
Production history
Designed 1934
Specifications
Weight 123 kg (271 lb)
Length 123 cm (48 in)
Barrel length 123 cm (48 in)
Caliber 54.5
Barrels 1
Muzzle velocity 890 metres per second (2,900 ft/s)
Effective firing range 18,300 metres (20,000 yd)

Lua error in package.lua at line 80: module 'strict' not found. The German 28 cm SK C/34[Note 1] naval gun was a 283 mm 54.5-caliber built-up gun designed in 1934 used on the Scharnhorst-class battleships.

History

The previous 28 cm gun was the SK C/28 used on the Deutschland class. The Scharnhorst class received an improved version of the SK C/28 which had a longer barrel—the SK C/34.

The 283 mm SK C/34 gun was relatively fast loading, compared with other armament of this size. It could deliver a shot every 17 seconds. The ballistic properties of the guns made them effective against the new French Dunkerque class, which had an armored belt 225–283 mm, barbettes of 310–340 mm, at standard fighting distances.

An improved version of the gun was planned to be mounted on the Netherlands' Design 1047 battlecruisers, but the ships were never begun due to the start of the Second World War.[1]

When Gneisenau was disarmed in 1942-43, her guns were redeployed for coast defence at Fjell festning ´(11.MAA 504) in Sotra, Norway (Bruno turret), at Batterie Oerlandat (4.MAA 507) in Austrått, Norway (Cesar turret), and guns from Anton turret were installed at Battery Rozenburg in the Netherlands.[2]

Characteristics

Effectiveness of the guns against armor in different situations[citation needed]
Distance 0 7,900 m (8,600 yd) 15,100 m (16,500 yd) 18,288 m (20,000 yd) 27,432 m (30,000 yd)
Shooting angle[deg] 0 3.3 7.4 9.7 18.7
Shell hitting angle[deg] 0 4.4 10.3 15.2 30.2
Shell velocity at target 890 m/s (2,900 ft/s) 693 m/s (2,270 ft/s) 552 m/s (1,810 ft/s) 496 m/s (1,630 ft/s) 420 m/s (1,400 ft/s)
Side armor belt penetration Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value). Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value). Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value). Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value). Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value).
Deck armor penetration - Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value). Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value). Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value). Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value).

Ammunition

File:Fjell festning granat.jpg
Coast-defence shell at Fjell festning in Sotra, Norway

Characteristics of SK C/28 and SK C/34 283 mm shells:

Gun type Shell type Length (calibers) Total weight
SK C/28 Armor-piercing 3.7 300 kg (660 lb)
Semi-armor-piercing 4.2 300 kg (660 lb)
Igniting 4.2 300 kg (660 lb)
SK C/34 Armor-piercing 4.4 336 kg (741 lb)
Semi-armorpiercing 4.4 316 kg (697 lb)
Igniting 4.5 315 kg (694 lb)


Surviving examples

Gneisenau's Cäsar turret at Austrått fort, Ørlandet, Norway
  • Gneisenau's Cäsar turret with its 3 guns survives at Austrått fort, Ørlandet, Norway
  • Parts of the guns from Anton turret survive at former "Stichting Fort", Hoek van Holland


See also

Footnotes

Notes
  1. ↑ SK - Schnelladekanone (quick loading cannon); C - Construktionsjahr (year of design)
Citations
  1. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ DiGiulian

External links

  • Lua error in package.lua at line 80: module 'strict' not found.

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