12 cm Kanone C/80

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12 cm Kanone C/80
The Battle of the Somme, July-november 1916 Q892.jpg
A C/79 or C/80 captured at the Battle of the Somme.
TypeFortress gun
Siege gun
Place of originFlag of the German Empire.svg  German Empire
Service history
In service1880-1918
Used byGerman Empire
Wars World War I
Production history
Designer Krupp
Designed1880
ManufacturerKrupp
Produced1880-1891
No. built620
Specifications
MassTravel: 4,675 kg (10,307 lb)
Combat: 2,455 kg (5,412 lb)
Barrel  length2.8 m (9 ft 2 in) L/23.4 [1]
Shell Separate-loading, bagged charges and projectiles
Shell weight17 kg (37 lb 8 oz)
Caliber 120.3 mm (4.74 in)
Breech Horizontal sliding-block
Recoil None
Carriage Box trail
Elevation -5° to +40° [1]
Rate of fire 2 rpm
Muzzle velocity 442 m/s (1,450 ft/s)
Maximum firing range7.9 km (4.9 mi) [1]

The 12 cm Kanone C/80 was a fortress and siege gun developed after the Franco-Prussian War and used by Germany before and during World War I.

Contents

History

After the Franco-Prussian War, the Army began to study replacements for its 12 cm Kanone C/64 breech loaded cannons. Although Prussian artillery had outclassed their French rivals during the war the breech mechanism they used was weak and there was a tendency for barrels to burst due to premature detonation of shells. In 1873 a new gun which retained the same 120.3 mm (4.74 in) caliber as the previous gun and designated the 12 cm Kanone C/73 was introduced to replace the C/64 but it had poor range so it was quickly replaced. The new gun designated the 12 cm Kanone C/80 was assigned to fortress and siege artillery regiments of the Army. [2]

Design

During the Franco-Prussian war, large numbers of French bronze cannons were captured and this material was melted down and used to build the new 12 cm Kanone C/80 and the smaller 9 cm Kanone C/79. The C/80 would use the same rounded breech block introduced on the C/73 to avoid the stress fractures which caused catastrophic failures in the square blocked C/64. This type of breech was known as a cylindro-prismatic breech which was a predecessor of Krupp's horizontal sliding-block and the gun used separate-loading, bagged charges and projectiles. [2]

The C/80 was fairly conventional for its time and most nations had similar guns such as its Russian cousin the 42-line fortress and siege gun Pattern of 1877 or its French rival the Canon de 120 mm modèle 1878. Like many of its contemporaries, the C/80 had a tall and narrow box trail carriage built from bolted iron plates with two wooden 12-spoke wheels. The carriages were tall because the guns were designed to sit behind a parapet with the barrel overhanging the front in the fortress artillery role or behind a trench or berm in the siege role. Like many of its contemporaries, the C/80's carriage did not have a recoil mechanism or a gun shield. However, when used in a fortress the guns could be connected to an external recoil mechanism which connected to a steel eye on a concrete firing platform and a hook on the carriage between the wheels. For siege gun use a wooden firing platform could be assembled ahead of time and the guns could attach to the same type of recoil mechanism. [1] A set of wooden ramps were also placed behind the wheels and when the gun fired the wheels rolled up the ramp and was returned to position by gravity. There was also no traverse so the gun had to be levered into position to aim. A drawback of this system was the gun had to be re-aimed each time which lowered the rate of fire. For transport, the gun was attached to a limber for towing by a horse team or artillery tractor. [1]

World War I

The majority of military planners before the First World War were wedded to the concept of fighting an offensive war of rapid maneuver which in a time before mechanization meant a focus on cavalry and light horse artillery firing shrapnel shells. Since the C/80 was heavier and wasn't designed with field use in mind it was employed as a fortress gun. However, once the Western Front stagnated and trench warfare set in fortresses, armories, coastal fortifications, and museums were scoured for artillery to send to the front. A combination of factors led the Germans to issue C/80's to their troops as replacements.

These included:

Although new guns with superior performance were introduced the C/80 remained in service until the end of the war due to the sheer number in service. [1]

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References

  1. 1 2 3 4 5 6 Fleischer, Wolfgang (February 2015). German artillery:1914-1918. Barnsley. pp. 19, 46–47, 56 and 92. ISBN   9781473823983. OCLC   893163385.
  2. 1 2 Jäger, Herbert (2001). German artillery of World War One. Marlborough: Crowood Press. pp. 11–15. ISBN   1861264038. OCLC   50842313.
  3. ↑ Hogg, Ian (2004). Allied artillery of World War One. Ramsbury: Crowood. pp. 129–134 & 218. ISBN   1861267126. OCLC   56655115.
  4. ↑ "German Colonial Uniforms". s400910952.websitehome.co.uk. Retrieved 2018-10-10.
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