A monitor is a relatively small warship that is neither fast or strongly armored but carries disproportionately large guns. They were used by some navies from the 1860s, during the First World War and with limited use in the Second World War.
HMS Erebus was a First World War monitor launched on 19 June 1916 and which served in both world wars. She and her sister ship Terror are known as the Erebus class. They were named after the two bomb vessels sent to investigate the Northwest Passage as part of Franklin's lost expedition (1845–1848), in which all 129 members eventually perished.
The Queen Elizabeth-class battleships were a group of five super-dreadnoughts built for the Royal Navy during the 1910s. These battleships were superior in firepower, protection and speed to their Royal Navy predecessors of the Iron Duke class as well as preceding German classes such as the König class. The corresponding Bayern-class ships were generally considered competitive, although the Queen Elizabeth class were 2 knots (3.7 km/h) faster and outnumbered the German class 5:2. The Queen Elizabeths are generally considered the first fast battleships of their day.
The Fiji-class cruisers were a class of eleven light cruisers of the Royal Navy that saw extensive service throughout the Second World War. Each ship of the class was named after a Crown colony or other constituent territory of the British Commonwealth and Empire. The class was also known as the Colony class, or Crown Colony class. Developed as more compact versions of the preceding Town-class cruisers, the last three were built to a slightly modified design and were sometimes also called the Ceylon class.
The Dido class consisted of sixteen light cruisers built for the Royal Navy during World War II. The first group of three ships were commissioned in 1940; the second group and third group were commissioned between 1941 and 1942. A fourth group, also described as the Improved Dido, or the Bellona class, were commissioned between 1943 and 1944. Most members of the class were given names drawn from classical history and legend. The groups differed in armament and for the Bellonas, in function. The Dido class were designed as small trade protection cruisers with five turrets, each with twin 5.25" guns in high angle mountings, far more modern in design than previous light cruiser turrets, offering efficient loading up to 90 degrees elevation to give some dual-purpose capacity. While some damage was experienced initially in extreme North Atlantic conditions, modified handling avoided the problem. The fitting of the three turrets forward in A, B and C positions depended on some use of aluminium in the structure and the lack of aluminium after Dunkirk was one of the reasons for only four turrets being fitted to the first group of three, while the third group had four turrets with twin 4.5" guns. The Bellona's were designed from the start with four turrets with radar-aimed guns and greater light anti-aircraft armament.
The Leander class was a class of eight light cruisers built for the Royal Navy in the early 1930s that saw service in World War II. They were named after mythological figures, and all ships were commissioned between 1933 and 1936. The three ships of the second group were sold to the Royal Australian Navy (RAN) before World War II and renamed after Australian cities.
HMS Nelson was the name ship of her class of two battleships built for the Royal Navy in the 1920s. They were the first battleships built to meet the limitations of the Washington Naval Treaty of 1922. Entering service in 1927, the ship spent her peacetime career with the Atlantic and Home Fleets, usually as the fleet flagship. During the early stages of World War II, she searched for German commerce raiders, missed participating in the Norwegian Campaign after she was badly damaged by a mine in late 1939, and escorted convoys in the Atlantic Ocean.
HMS Raglan was a First World War Royal Navy Abercrombie-class monitor, which was sunk during the Battle of Imbros in January 1918.
The Erebus class of warships was a class of 20th century Royal Navy monitors armed with a main battery of two 15-inch /42 Mk 1 guns in a single turret. It consisted of two vessels, Erebus and Terror, named after the two ships lost in the Franklin Expedition. Both were launched in 1916 and saw active service in World War I off the Belgian coast. After being placed in reserve between the wars, they served in World War II, with Terror being lost in 1941 and Erebus surviving to be scrapped in 1946.
The Lord Clive-class monitor, sometimes referred to as the General Wolfe class, were ships designed for shore bombardment and were constructed for the Royal Navy during the First World War.
The Marshal Ney class was a class of monitor built for the Royal Navy during the First World War.
HMS Adventure, pennant number M23, was an Adventure-class minelaying cruiser of the Royal Navy built in the 1920s that saw service during the Second World War. Her commander between 1928 and 1929 was the future First Sea Lord John H. D. Cunningham. Laid down at Devonport in November 1922 and launched in June 1924, Adventure was the first vessel built for service as a minelayer; she was also the first warship to use diesel engines, which were used for cruising. Adventure first joined the Atlantic Fleet, then was transferred to the China Station in 1935. In World War II, the ship was damaged in 1941 and 1944, and was converted to a landing craft repair in 1944. In 1945 Adventure was reduced to reserve and in 1947 she was sold and broken up for scrap.
HMS Queen was a member of the London class of pre-dreadnought battleships built for the British Royal Navy. The Londons were near repeats of the preceding Formidable-class battleships, but with modified armour protection. Due to slight differences between Queen and HMS Prince of Wales and the other Londons, they are sometimes referred to as the Queen class. The ship's main battery consisted of four 12-inch (305-mm) guns, and she had top speed of 18 knots. The ship was laid down in March 1901, was launched in March 1902, and was completed in March 1904. After commissioning in April 1904, she served with the Mediterranean Fleet until 1906, when she returned to Britain before embarking on another stint with the Mediterranean Fleet later that year. Queen was transferred back to the United Kingdom in 1908 and thereafter served in the Atlantic Fleet, the Home Fleet, and finally the 5th Battle Squadron of the Second Fleet in 1914.
HMS Marshal Ney was the lead ship of her class of two monitors built for the Royal Navy during the First World War. Laid down as M13, she was renamed after the French field marshal of the Napoleonic Wars Michel Ney. After service in the First World War, she became a depot ship and then an accommodation ship. Between 1922 and 1947, she was renamed three times, becoming successively Vivid, Drake and Alaunia II. She was scrapped in 1957.
HMS General Wolfe, also known as Wolfe, was a Lord Clive-class monitor which was built in 1915 for shore-bombardment duties in the First World War. Her class of eight ships was armed by four obsolete Majestic-class pre-dreadnoughts which had their 12-inch guns and mounts removed, modified and installed in the newly built monitors. Wolfe spent her entire war service with the Dover Patrol, bombarding the German-occupied Belgian coastline, which had been heavily fortified. In the spring of 1918 she was fitted with an 18-inch (457 mm) gun, with which she made the longest-range firing in the history of the Royal Navy - 36,000-yard (20 mi) - on a target at Snaeskerke, Belgium. After the war, she was laid up before being stripped and put up for sale in 1920. She was finally scrapped in 1923.
HMS Roberts was a Royal Navy Roberts-class monitor of the Second World War. She was the second monitor to be named after Field Marshal Frederick Roberts, 1st Earl Roberts.
HMS Abercrombie was a Royal Navy Roberts-class monitor of the Second World War. She was the second monitor to be named after General Sir Ralph Abercrombie.
HMS Ramillies was one of five Revenge-class super-dreadnought battleships built for the Royal Navy during the First World War. They were developments of the Queen Elizabeth-class battleships, with reductions in size and speed to offset increases in the armour protection whilst retaining the same main battery of eight 15-inch (381 mm) guns. Completed in late 1917, Ramillies saw no combat during the war as both the British and the German fleets had adopted a more cautious strategy by this time owing to the increasing threat of naval mines and submarines.
HMS Rockwood was a Type III, Hunt class Escort destroyer of the Royal Navy, built by Vickers-Armstrongs in Barrow-in-Furness and served during the Second World War. She was damaged in action in November 1943 by a glide bomb, not fully repaired, took no further part in the war and was broken up for scrap in 1946.
Royal Navy