page_title: Battleship
section_title: Iron armor and construction
hierarchical_section_title: Battleship / History of battleships / Ironclads / Iron armor and construction
caption_attribution_description: English: Photo of the ironclad HMS Warrior (1860) with the tide in.
context_page_description: A battleship is a large armored warship with a main battery consisting of large caliber guns. During the late 19th and early 20th centuries the battleship was the most powerful type of warship, and a fleet centered around the battleship was part of the command of the sea doctrine for several decades. By the time of World War II, however, the battleship was made obsolete as other ships, primarily the smaller and faster destroyers, the secretive submarines, and the more versatile aircraft carriers came to be far more useful in naval warfare. While a few battleships were repurposed as fire support ships and as platforms for guided missiles, few countries maintained battleships after World War II, with the last battleships being decommissioned at the end of the Cold War.
  The term battleship came into formal use in the late 1880s to describe a type of ironclad warship, now referred to by historians as pre-dreadnought battleships. In 1906, the commissioning of HMS Dreadnought into the United Kingdom's Royal Navy heralded a revolution in battleship design.
context_section_description: The development of high-explosive shells made the use of iron armor plate on warships necessary. In 1859 France launched Gloire, the first ocean-going ironclad warship. She had the profile of a ship of the line, cut to one deck due to weight considerations. Although made of wood and reliant on sail for most journeys, Gloire was fitted with a propeller, and her wooden hull was protected by a layer of thick iron armor. Gloire prompted further innovation from the Royal Navy, anxious to prevent France from gaining a technological lead.
  The superior armored frigate Warrior followed Gloire by only 14 months, and both nations embarked on a program of building new ironclads and converting existing screw ships of the line to armored frigates. Within two years, Italy, Austria, Spain and Russia had all ordered ironclad warships, and by the time of the famous clash of the USS Monitor and the CSS Virginia at the Battle of Hampton Roads at least eight navies possessed ironclad ships.
  Navies experimented with the positioning of guns, in turrets (like the USS Monitor), central-batteries or barbettes, or with the ram as the principal weapon. As steam technology developed, masts were gradually removed from battleship designs. By the mid-1870s steel was used as a construction material alongside iron and wood. The French Navy's Redoutable, laid down in 1873 and launched in 1876, was a central battery and barbette warship which became the first battleship in the world to use steel as the principal building material.
caption: HMS Warrior (1860), the Royal Navy's first ocean-going iron-hulled warship.
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