HMS Conqueror (1881)

HMS Conqueror was an ironclad battleship of the Victorian Royal Navy, whose main armament was an armoured ram.

HMS Conqueror as she appeared upon completion in 1886.
History
United Kingdom
Name	HMS Conqueror
Builder	Chatham Dockyard
Laid down	28 April 1879
Launched	8 September 1881
Completed	March 1886
Fate	Broken up 1907
General characteristics
Displacement	6,200 tons
Length	270 ft (82.3 m) p/p 288 ft (87.8 m) o/a
Beam	58 ft (18 m)
Draught	22 ft (6.7 m) light 24 ft 3 in (7.4 m) deep load
Propulsion	2-shaft Humphreys & Tennant inverted compound 4,500 IHP
Speed	14 knots
Complement	330 men
Armament	Armoured ram 2 BL 12-inch (305 mm) guns 4 × BL 6-inch (152 mm) guns 7 × QF 6-pounder (57 mm) guns 6 torpedo tubes
Armour	Belt: 12 inches tapering to 8 inches Citadel: 12 inches to 10.5 inches Turret: 14 inches face, 12 inches sides Conning tower: 12 inches to 6 inches Bulkhead: 11 inches Deck: 2.5 inches to 1.25 inches

She was the first ship of the Conqueror class to be laid down, her only sister-ship being HMS Hero, which was completed some two years later. At the time of her design it was thought that ramming attacks were the most effective offensive manoeuvre against armoured warships, as the armour of the period was, for a short time, able to defend against the majority of contemporary guns extant. This belief was reinforced by the action at the battle of Lissa, when the Austrian battleship Ferdinand Max rammed and sank the Italian Re D'Italia. The Italian ship was at the time a stationary target, a detail which it appears did not receive, in naval architects' minds, the attention it deserved.

HMS Conqueror's forecastle and 12-inch (305-mm) guns.

Conqueror's breech-loading guns were of 12-inch (305-mm) calibre, and were twenty-five calibres (25 feet) long. They fired a shell weighing 714 pounds (324 kg) with a muzzle velocity of 1,910 ft/second (582 m/second), and could penetrate 10 inches (254 mm) of armour if the shell struck at or near a ninety-degree angle; much less, however, in the much more likely event of an oblique impact. They were placed very near to the deck, and it was found that a discharge over the bow caused marked blast damage to the deck and associated fittings. Firing abaft the beam caused blast damage to the bridge and superstructure, so in practice the guns could only fire on the beam, through an arc of some 45 degrees. The heavy artillery was only intended to be used against a target which had evaded a ramming attack, and was therefore on Conqueror's beam.

The smaller guns were intended for use against small targets which could evade the ram and were not worth using the heavy artillery for. The torpedo tubes - six was the greatest number carried to date by a battleship - were placed aft and were intended for use against a target placed by accident or design astern of Conqueror, when the main armament would be valueless.