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单词 Barbette armour
释义

Barbette armour

英语百科

Barbette

Barbette for a 25-ton gun on the British ironclad HMS Temeraire
Cross-section of a 19th-century fortification; a gun at position
Illustration of several armored ships from the 1880s, showing the degree of experimentation with armament arrangements
USS Maryland under construction in 1917, showing the forward two barbettes without the gun turret installed

Barbette is a word with several related but distinct meanings. In recent naval usage, a 'barbette' is a protective circular armour support for a heavy gun turret. This evolved from earlier forms of gun protection that eventually led to the predreadnought. The name ultimately comes from fortification, originally meaning a raised platform or mound, seen in the French phrase en barbette, which refers to the practice of firing a cannon over a parapet rather than through an embrasure in the fortification. The former gives better angles of fire but less protection than the latter. The disappearing gun was a variation on the barbette gun; it consisted of a heavy gun on a carriage that would retract behind a parapet or into a gunpit for reloading. They were primarily used in coastal defences, but saw some use in a handful of warships, and some inland fortifications. The term is also used for certain aircraft gun mounts.

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