An ironclad is a steam-propelled warship protected by iron or steel armor plates, constructed from 1859 to the early 1890s. The ironclad was developed as a result of the vulnerability of wooden warships to explosive or incendiary shells. The first ironclad battleship, Gloire, was launched by the French Navy in November 1859 – narrowly pre-empting the British Royal Navy, though Britain built the first completely iron-hulled warships.
HMS Captain was a major warship built for the Royal Navy as a semi-private venture, following a dispute between the designer and the Admiralty. With wrought-iron armour, steam propulsion, and the main battery mounted in rotating armoured turrets, the ship was, at first appearance, quite innovative and formidable. However, poor design and design changes resulted in a vessel that was overweight and ultimately unstable. In terms of seaworthiness she was reported as closely comparable to the higher freeboard turret-ship HMS Monarch, but her reduced freeboard added a sense of "sluggishness". The Captain capsized in heavy seas, only five months after being commissioned, with the loss of nearly 500 lives.
HMS Devastation was the first of two Devastation-class mastless turret ships built for the Royal Navy. This was the first class of ocean-going capital ship that did not carry sails, and the first whose entire main armament was mounted on top of the hull rather than inside it.
HMS Thunderer was one of two Devastation-class ironclad turret ships built for the Royal Navy in the 1870s. She suffered two serious accidents before the decade was out and gained a reputation as an unlucky ship for several years afterward. The ship was assigned to the Mediterranean Fleet in 1878 and was reduced to reserve in 1881 before being recommissioned in 1885. Thunderer returned home in 1887 and was again placed in reserve. She rejoined the Mediterranean Fleet in 1891, but was forced to return to the UK by boiler problems the following year. The ship became a coast guard ship in Wales in 1895 and was again placed in reserve in 1900. Thunderer was taken out of service in 1907 and sold for scrap in 1909.
HMS Trafalgar was one of two Trafalgar-class battleships commissioned in 1890 and 1891, the other being HMS Nile. The ship was designed as an improved version of existing battleships with greater displacement and a thicker armoured belt amidships. Trafalgar saw active service as a battleship from 1890 to 1897 and from 1909 to 1911 when she was sold. Between these two periods as a combatant, Trafalgar served as a guardship and as a drill ship.
A gun turret is a mounting platform from which weapons can be fired that affords protection, visibility and ability to turn and aim. A modern gun turret is generally a rotatable weapon mount that houses the crew or mechanism of a projectile-firing weapon and at the same time lets the weapon be aimed and fired in some degree of azimuth and elevation.
HMSZealous was one of the three ships forming the second group of wooden steam battleships selected in 1860 for conversion to ironclads. This was done in response to the perceived threat to Britain offered by the large French ironclad building programme. The ship was ordered to the West Coast of Canada after she was completed to represent British interests in the Eastern Pacific Ocean. Zealous became the flagship for the Pacific Station for six years until she was relieved in 1872. She was refitted upon her arrival and subsequently became the guard ship at Southampton until she was paid off in 1875. The ship was in reserve until she was sold for scrap in 1886.
HMS Royal Sovereign was originally laid down as a 121-gun first-rate ship of the line of the Royal Navy. She would have mounted sixteen 8 in (200 mm) cannon, 114 32-pounder (15 kg) guns, and a 68-pounder (31 kg) pivot gun. With the rise of steam and screw propulsion, she was ordered to be converted on the stocks to a 131-gun screw ship, with conversion beginning on 25 January 1855. She was finally launched directly into the ordinary on 25 April 1857. She measured 3765 tons burthen, with a gundeck of 240 feet 6 inches (73.30 m) and breadth of 62 feet (19 m), and a crew of 1,100, with engines of 780 nhp.
HMS Hercules was a central-battery ironclad of the Royal Navy in the Victorian era, and was the first warship to mount a main armament of 10-inch (250 mm) calibre guns.
HMS Monarch was the first seagoing British warship to carry her guns in turrets, and the first British warship to carry guns of 12-inch (300 mm) calibre.
HMS Glatton was a breastwork monitor which served in the Victorian Royal Navy.
HMS Alexandra was a central battery ironclad of the Victorian Royal Navy, whose seagoing career was from 1877 to 1900. She spent much of her career as a flagship, and took part in operations to deter the Russian Empire's aggression against the Ottoman Empire in 1878 and the bombardment of Alexandria in 1882. She was affectionately known by her crew as Old Alex.
HMS Orion was a Belleisle-class ironclad of the Victorian Royal Navy. Originally constructed for the Ottoman Empire, and called Bourdjou-Zaffer, she was purchased by the British Government before completion.
HMS Inflexible was a Victorian ironclad battleship carrying her main armament in centrally placed turrets. The ship was constructed in the 1870s for the Royal Navy to oppose the perceived growing threat from the Italian Regia Marina in the Mediterranean.
HMS Agamemnon was a Victorian Royal Navy Ajax-class ironclad turret battleship, the sister ship of HMS Ajax. Agamemnon and Ajax were built to the same design, and were smaller and less expensive versions of Inflexible. The class is known as the Ajax class because Ajax was laid down first although Agamemnon was completed one day before her sister.
HMS Rupert was a battleship of the Victorian Royal Navy, whose principal weapon was designed to be her ram.
HMS Hero was the second and final Conqueror-class battleship. She was an ironclad who served in the Victorian Royal Navy.
HMS Nile was one of two Trafalgar-class ironclad battleships built for the Royal Navy during the 1880s. Late deliveries of her main guns delayed her commissioning until 1891 and she spent most of the decade with the Mediterranean Fleet. Nile returned home in 1898 and became the coast guard ship at Devonport for five years before she was placed in reserve in 1903. The ship was sold for scrap in 1912 and broken up at Swansea, Wales.
The two British Devastation-class battleships of the 1870s, HMS Devastation and HMS Thunderer, were the first class of ocean-going capital ship that did not carry sails, and the first which mounted the entire main armament on top of the hull rather than inside it.
United Kingdom