battleship, the modern equivalent of, and the name derived from, the older sailing ship of the line.

From Ship of the Line to ‘Ironclad’.

The introduction into warfare at sea during the 1840s and 1850s of the high-explosive shell, the rifled gun, armour plate, and steam propulsion of acceptable reliability made obsolete the traditional three-decker wooden sailing ship of the line. However, the transition from ship of the line to battleship was a comparatively gradual process, many of the old sailing first rates being converted to have iron protection on their hulls and lengthened to take steam propulsion, while the new iron ships retained the masts, sails, and gun batteries of the older wooden ships. It was only with the growth in reliability and radius of action of the steam engine, and the introduction of the breech-loading gun and a more efficient propellant than black powder, that the battleship at last broke clear from its wooden predecessor and evolved as a type of its own.

The first seagoing ‘ironclad’, the precursor to the 20th-century battleship, was the French Gloire, and she was followed in 1860 by the British iron-hulled HMS Warrior. Though classed as frigates, these 13-knot men-of-war, powered by engines of over 3,000 horsepower but also carrying a full sailing rig, could overtake and overwhelm any contemporary three-decker ship of the line.

The first battleships to rely entirely on steam propulsion were known as mastless ships, though another feature, the ram bow, lingered on longer than sails. The first such ship was the 9,300-ton British Devastation, designed in 1869. Having a very low freeboard, and without forecastle or poop, she was virtually a seagoing monitor. Here, again, the two types overlapped considerably in time, the masted iron battleships lasting until nearly 1890.

Guns, armour, and steam machinery improved so rapidly during the period 1870–1900 that the battleship began to settle down into a recognizable type, with the main guns mounted in turrets, and most navies began to build them in classes instead of singly. Tonnage increased with each new ship, in Britain rising to the 15,000 tons of the Majestic, completed in 1896.

By the last decade of the 19th century every permutation of large and small guns, high and moderate speed, thick and thin armour plate, had seemingly been exhausted, naval architecture had settled on a basic specification for the battleship, and the term ‘ironclad’ had been dropped. This combined an armament of four big guns, about ten guns of various smaller calibre, and a large number of quick-firers to deal with the new threat to the battleship, the torpedo boat.

The Dreadnought.

In 1903 the naval annual Fighting Ships published an article by the distinguished Italian naval architect Vittorio Cuniberti, entitled ‘An Ideal Battleship for the British Fleet’, which called for a vessel combining an armament of twelve 12-in. (30-cm) guns, 12 inches of armour plate, and a speed of 24 knots—an unprecedented combination of qualities. HMS Dreadnought which was launched in 1906 fell only marginally short of Cuniberti's ideal. She overturned all the long-established principles of compromise in naval architecture, made every other battleship in the world obsolete, and created a furore in Britain as well as the world at large. She had many progenitors, but history justly gives the first credit to Admiral Sir John Fisher. With her armament of ten 12-in guns, displacement of 17,900 tons, and maximum speed of 21 knots, Dreadnought's superiority to any other fighting ship was so manifest that no naval power could afford to build to any other pattern. Moreover, she was powered by turbine machinery (see steam propulsion), which offered greatly superior dependability, simplicity, and cleanliness. Such an advance in design was achieved that it was not imitated by foreign designers for several years and kept Britain ahead in what became known as the ‘Dreadnought Race’ for supremacy at sea.

The Decline of Battleship Supremacy.

In 1936, when a new naval rearmament race was under way, the threat of aerial bombardment had been added to that of the submarine, yet by the outbreak of the Second World War (1939–45) all the major powers had laid down new battleships. Germany, for example, laid down two, the 41,000-ton German Bismarck, and her sister ship, the 42,500-ton Tirpitz, both launched in 1941, but their so-called pocket battleships were in fact cruisers. The Japanese built the biggest battleships ever constructed, ignoring the Washington Naval Limitation Treaty in doing so. These were the Yamato and Musashi, completed in 1941 and 1942. They displaced over 63,720 tons, carried nine 18-in. (45-cm) guns, and could steam at 27 knots.

However, early lessons in the Second World War, at Taranto in 1940, when the Italian fleet was crippled by a handful of obsolescent British Fleet Air Arm aircraft, and at Pearl Harbor in December 1941, when Japanese aircraft carriers launched a devastating aircraft strike on the US Navy's Pacific Fleet, suggested that the battleship was an obsolete and expensive anachronism. This was underlined when in the same month, December 1941, the new British battleship HMS Prince of Wales and the older battlecruiser HMS Repulse were both sunk by Japanese aircraft off Malaya. And in spite of their size and speed, and elaborate protection against bombs and torpedoes, both the Yamato and Musashi were sunk at small cost after sustained attacks by US aircraft.

In the latter part of the war the battleship was used for shore bombardment, a role it continued to perform in the Korean (1950–3) and Vietnam Wars (1965–75). Four Montana-class battleships were laid down for the US Navy late in the Second World War but were never completed, and the Royal Navy's last battleship, the Vanguard, completed in 1946, was scrapped in 1960. The US Navy currently (2004) retains one battleship, Iowa, in reserve.

Bibliography

Hough, R. , Dreadnought: A History of the Modern Battleship (1965).
Parkes, O. , British Battleships (rev. edn. 1966).

battleship large, armored warship equipped with the heaviest naval guns. The evolution of the battleship, from the ironclad warship of the mid-19th cent., received great impetus from the Civil War. By 1872 the French were building iron and steel warships, and in 1876 the British started construction of two all-steel war vessels. Developments continued to improve speed, fortification, accuracy of armament, and size. The H.M.S. Dreadnought, which was completed in 1906, was the first modern battleship and introduced the "all-big-gun" class of warship. It was armed with ten 12-in. (30.5-cm) guns and was powered by steam turbines, which developed a speed of 21 knots. The battleship became the major capital unit in modern navies, although there was only one fleet engagement of battleships in World War I and no fleet engagements in World War II. However, with the development of new aerial tactics, such as dive bombing, and the introduction (1941) of aircraft carriers as the major unit of a naval attack force, battleships became nearly obsolete. The fate of the battleship as a major weapon in modern warfare was sealed on Dec. 7, 1941, when Japanese carrier-borne aircraft attacked the U.S. navy's battleships at Pearl Harbor, sinking or badly damaging all eight. Shortly after the Korean War the last battleships of the British and American navies were decommissioned. The U.S. navy, during part of the Vietnam War, used one battleship, the New Jersey, for shore bombardment and antiaircraft defense. The four Iowa -class battleships were recommissioned in 1980s; all were again decommissioned by 1992.

Bibliography: See S. Breyer, Battleships and Battle Cruisers, 1905-1970 (tr. 1973) and Battleships of the World (1980).

battleship Most powerful type of naval warship in use during the late 19th and early 20th centuries. The largest battleships, the Musachi and the Yamato, displaced more than 72,000 tonnes and were built by the Japanese. Both were sunk in World War II. Battleships combined the thickest armour and the most powerful naval guns. Modern battleships also carry a variety of missile systems. See also aircraft carrier; cruiser

battleship n. a heavy warship of a type built chiefly in the late 19th and early 20th centuries, with extensive armor protection and large-caliber guns.
late 18th cent.: shortening of line-of-battle ship, originally with reference to the largest wooden warships.

bat·tle·ship / ˈbatlˌship/ • n. a heavy warship of a type built chiefly in the late 19th and early 20th centuries, with extensive armor and large-caliber guns.

battleship XIX. Short for line-of-battle ship (XVIII) ship designed to fight in line of battle.