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Paixhans


Henri-Joseph Paixhans (French pronunciation: ​[pɛksɑ̃]; January 22, 1783, Metz – August 22, 1854, Jouy-aux-Arches) was a French artillery officer of the beginning of the 19th century.

Henri-Joseph Paixhans graduated from the École Polytechnique. He fought in the Napoleonic wars, was the representative (Député) for the Moselle department between 1830 and 1848, and became "General de Division" in 1848.

In 1823, he invented the first shell guns, which came to be called Paixhans guns (or "canon-obusiers" in the French Navy). Paixhans guns became the first naval guns to combine explosive shells and a flat trajectory, thereby triggering the demise of wooden ships, and the iron hull revolution in shipbuilding. Paixhans also invented a "Mortier monstre" ("Monster Mortar"), using 500 kg bombs, which was used to terrible effect in the Siege of Antwerp in 1832. He was also a naval theorist claiming that a few aggressively armed small units could destroy the largest naval units of the time, making him a precursor of the French "Jeune École" school of thought.

The poet Victor Hugo wrote:

Paixhans developed a delaying mechanism which, for the first time, allowed shells to be fired safely in high-powered flat-trajectory guns. The effect of explosive shells hitting wooden hulls and setting them aflame was devastating, and was demonstrated in trials against the two-decker Pacificateur in 1824.

The first Paixhans guns were founded in 1841. The barrel of the guns weighed about 10,000 pounds, and proved accurate to about two miles. In the 1840s, France, England, Russia and the United States had adopted the new naval guns.


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