Canon obusier de 12

Last updated • 2 min readFrom Wikipedia, The Free Encyclopedia
"Canon de l’Empereur"
Canon obusier de campagne de 12
12-pounder "Napoleon"
Canon obusier de campagne de 12 modele 1853.jpg
Canon obusier de campagne de 12 modèle 1853 on display in Les Invalides.
Type Regimental artillery field gun
Place of originFrance
Service history
Used by France, United States, Confederate States of America
Wars Crimean War, American Civil War
Production history
Designed1853
No. builtFrance: ?
United States: Union States: 1,100, Confederate states: 600
Specifications
Mass626 kg (1,227 lb), with carriage: 1,200 kg (2,353 lb)
Length1.91 m (66 in)
Crew4
Shell 4.1 kg shell, ball, canister
Caliber 121 mm (4.62 in)
Muzzle velocity 439 m/s (1,440 ft/s)
Effective firing range1,480 m at 5° elevation (1,440 yd)

The Canon obusier de 12 (officially the "Canon obusier de campagne de 12 livres, modèle 1853"), also known as the "Canon de l’Empereur" ("emperor's cannon"), was a type of canon-obusier (literally "shell-gun cannon", "gun-howitzer") developed by France in 1853. Its performance and versatility (it was able to fire either ball, shell, canister or grapeshot) allowed it to replace all the previous field guns, especially the Canon de 8 and the Canon de 12 as well as the two howitzers of the Valée system.

Contents

The cannon was known in the United States as the 12-pounder Napoleon after French President and Emperor Napoleon III.

Characteristics

Canon-obusier Le Lassaigne, modele 1853. Canon Obusier Le Lassaigne.jpg
Canon-obusier Le Lassaigne, modèle 1853.

The "canon obusier" was a smoothbore cannon firing either shells, balls, or canister. This was an improvement over previous cannon firing only balls, such as those of the Gribeauval system. The "canon obusier de 12 livres" is commonly described as a "12-pounder" in English, although the nominal rating was based on a slightly different measure - the bore is the size of a solid cast-iron ball weighing 12 livres (old French pounds, about 1.079 English pounds.) As with other cannon rated by nominal weight, the projectile actually used might be of a different weight. The new weapon "revolutionized field artillery. The Napoleon was light enough to be moved rapidly on the battlefield by horses, heavy enough to destroy field fortifications almost a mile away, and versatile enough to fire solid shot, shell, spherical case, and canister." [1] The French Army introduced the "canon obusier de 12" in 1853.

American career

This type of "canon obusier", commonly called in English the 12-pounder Napoleon Model 1857, was the primary cannon used in the American Civil War. [2] [3] Over 1,100 such Napoleons were manufactured by the North, and 600 by the South. [4] At Gettysburg, 142 out of 360 Union guns (39%) were Napoleons.

The "12-pounder Napoleon" was widely admired because of its safety, reliability, and killing power, especially at close range. It was the last cast bronze gun used by an American army. The Union version of the Napoleon can be recognized by the flared front end of the barrel, called the muzzle swell. Confederate Napoleons were produced in at least six variations, most of which had straight muzzles, but at least eight cataloged survivors of 133 identified have muzzle swells.

Succession

From 1858, Napoleon III had his existing canon-obusiers rifled in order to accommodate the new La Hitte system for muzzle-loading rifled guns. Here, such a shell used in Japan in the 1860s and the Boshin war, where it was called a "Napoleon shell". Ryozen Museum of History, Kyoto, Japan. Shell Japan.jpg
From 1858, Napoleon III had his existing canon-obusiers rifled in order to accommodate the new La Hitte system for muzzle-loading rifled guns. Here, such a shell used in Japan in the 1860s and the Boshin war, where it was called a "Napoleon shell". Ryozen Museum of History, Kyoto, Japan.

The smoothbore "canon obusier" was soon superseded by rifled cannons, which had much more accuracy and range, with the developments of Antoine Treuille de Beaulieu and the introduction of the La Hitte system in 1858. [5]

Napoleon III had his existing guns, such as the Canon obusier de 12, rifled to accommodate the La Hitte system. Such guns remained in use until 1870. [6]

See also

Commons-logo.svg Media related to Canon obusier de 12 at Wikimedia Commons

Notes

  1. ↑ "The Napoleon". National Park Service. Archived from the original on December 7, 2008.
  2. ↑ The Mitrailleuse by Dr. Patrick Marder Military History Online Archived 2008-12-23 at the Wayback Machine
  3. ↑ Nps.gov
  4. ↑ Nps.gov
  5. ↑ "...the introduction by the French army of the Beaulieu 4-pounder rifled field-gun in 1858: the new artillery, though much more accurate and long-ranged than the smoothbore 'canon-obusier' it replaced (which, incidentally, was the most prevalent artillery piece of the US Civil War), was not suited to firing anti-personnel case-shot (which, in French, is called 'mitraille')." in The Mitrailleuse by Dr. Patrick Marder Military History Online Archived 2008-12-23 at the Wayback Machine
  6. ↑ "Napoleon went so far, however, in 1858, as to order his SB guns rifled, under the bastard system known as the "Lahitte System," which continued in general use in France until 1870" in The Long Arm of Lee by Jennings Cropper Wise, Gary W. Gallagher p.30


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The M1857 12-pounder Napoleon or Light 12-pounder gun or 12-pounder gun-howitzer was a bronze smoothbore muzzle-loading artillery piece that was adopted by the United States Army in 1857 and extensively employed in the American Civil War. The gun was the American-manufactured version of the French canon obusier de 12 which combined the functions of both field gun and howitzer. The weapon proved to be simple to produce, reliable, and robust. It fired a 12.03 lb (5.5 kg) round shot a distance of 1,619 to 1,680 yd at 5° elevation. It could also fire canister shot, common shell, and spherical case shot. The 12-pounder Napoleon outclassed and soon replaced the M1841 6-pounder field gun and the M1841 12-pounder howitzer in the U.S. Army, while replacement of these older weapons was slower in the Confederate States Army. A total of 1,157 were produced for the U.S. Army, all but a few in the period 1861–1863. The Confederate States of America utilized captured U.S. 12-pounder Napoleons and also manufactured about 500 during the war. The weapon was named after Napoleon III of France, who helped develop the weapon.

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