The A- and B-class destroyers were a group of 18 destroyers built for the Royal Navy during the late 1920s, with two additional ships built for the Royal Canadian Navy. The British ships were divided into two flotillas of eight destroyers, each with a flotilla leader.
The County class was a class of heavy cruisers built for the Royal Navy in the years between the First and Second World Wars. They were the first post-war cruisers constructed for the Royal Navy and were designed within the limits of the Washington Naval Treaty of 1922. Such ships, with a limit of 10,000 tons standard displacement and 8-inch calibre main guns may be referred to as "treaty cruisers".
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 of six ships and third group of two were commissioned between 1941 and 1942. A fourth group, also described as the Improved Dido or 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 a secondary role in the battlefleet as large flotilla leaders. As designed, they mounted five twin 5.25-inch high-angle gun turrets on the centreline providing dual-purpose anti-air and anti-surface capacity; the complex new turrets were unreliable when introduced, and somewhat unsatisfactory at a time when the UK faced a fight for survival. During the war, the original 1939-42 ships required extensive refit work to increase electrical generating capacity for additional wartime systems and in the final Bellona,HMS Diadem, fully-electric turrets. While some damage was experienced initially in extreme North Atlantic weather, changes to gun handling and drill partially mitigated the problems. The fitting of the three forward turrets in the double-superfiring A-B-C arrangement relied upon the heavy use of aluminium in the ships' superstructure, and the lack of aluminium after the evacuation of the British Army from France was one of the primary reasons for the first group only receiving four turrets, while the third group received four twin 4.5-inch mounts and no 5.25-inch guns at all. The Bellonas were designed from the start with four radar-directed 5.25-inch gun turrets with full Remote Power Control and an expanded light anti-aircraft battery, substantially increasing their efficiency as AA platforms.
The C class was a group of twenty-eight light cruisers of the Royal Navy, and were built in a sequence of seven groups known as the Caroline class, the Calliope class, the Cambrian class, the Centaur class, the Caledon class, the Ceres class and the Carlisle class. They were built for the rough conditions of the North Sea, and proved to be rugged and capable vessels, despite being somewhat small and cramped.
The Atlanta-class cruisers were eight United States Navy light cruisers which were designed as fast scout cruisers or flotilla leaders but which proved to be effective anti-aircraft cruisers during World War II. They were also known as the Atlanta-Oakland class. The Atlanta class originally had 16 x 5-inch (127 mm)/38 caliber guns in eight two-gun turrets, arranged with three superfiring turrets forward, three more superfiring aft and two waist mounts, one port and one starboard, giving the first four Atlanta-class cruisers the heaviest anti-aircraft armament of any cruiser of World War II. The last four ships of the class, starting with Oakland, had a slightly revised armament with a reduced main gun battery - the waist turrets being deleted - as they were further optimized for anti-aircraft fire in light of war experience.
HMS Danae was a Leander-class frigate of the Royal Navy. She was, like the rest of the class, named after a figure of mythology. Danae was built by Devonport Dockyard. She was launched on 31 October 1965 and commissioned on 10 October 1967.
The Arethusa class was a class of four light cruisers built for the Royal Navy between 1933 and 1937 and that served in World War II. It had been intended to construct six ships, but the last pair, Polyphemus and Minotaur, were ordered in 1934 as the 9,100-ton Town-class Southampton and Newcastle.
The Hawkins class consisted of five heavy cruisers built for the Royal Navy during the First World War, although none of them saw service during the war. The first ship to be completed, HMS Vindictive, was renamed from HMS Cavendish and converted into an aircraft carrier while under construction. All ships were named after Elizabethan sea captains. The three ships remaining as cruisers in 1939 served in the Second World War, with Effingham being an early war loss through wreck; Raleigh had been lost in a similar shipwreck on uncharted rocks in 1922. Vindictive, though no longer a cruiser, also served throughout the War. This class formed the basis for the definition of the maximum cruiser type under the Washington Naval Treaty of 1922.
The I-class destroyers were a group of nine destroyers, including a flotilla leader, built for the Royal Navy during the 1930s. Four similar ships were ordered by the Turkish Navy, of which two were purchased for the Royal Navy, bringing the number of these ships British service to 11—although three of the original ships had been lost by the time Inconstant and Ithuriel were commissioned. The I-class served in World War II and six were lost, with a seventh ship being written off.
HMS Vindictive was a warship built during the First World War for the Royal Navy (RN). Originally designed as a Hawkins-class heavy cruiser and laid down under the name Cavendish, she was converted into an aircraft carrier while still being built. Renamed in 1918, she was completed a few weeks before the end of the war and saw no active service with the Grand Fleet. The following year she participated in the British campaign in the Baltic against the Bolsheviks, during which her aircraft made numerous attacks against the naval base at Kronstadt. Vindictive returned home at the end of the year and was placed in reserve for several years before her flight decks were removed and she was reconverted back into a cruiser. The ship retained her aircraft hangar and conducted trials with an aircraft catapult before she was sent to the China Station in 1926. A year after her return in 1928, she was again placed in reserve.
The Emerald class or E class was a class of two light cruisers built for the Royal Navy. Following the Cavendish class, three ships of a new class were ordered in March 1918, towards the end of World War I, designed to emphasise high speed at the cost of other qualities, for use against rumoured new high-speed German cruisers – like the Brummer class – and particularly minelayers, in the North Sea. The third ship was cancelled in November 1918.
The Abdiel class were a class of six fast minelayers commissioned into the Royal Navy and active during the Second World War. They were also known as the Manxman class and as "mine-laying cruisers". These ships were armed with a wide variety of defensive weapons from 0.5-inch (13 mm) machine guns to the 4-inch (100 mm) main armament. They were also equipped with a wide array of radars, along with their normal complement of mines. They were easily mistaken for destroyers. Half the class was lost through enemy action during the Second World War; the others saw post-war service, and the last example was scrapped in the early 1970s.
The J, K and N class consisted of 24 destroyers built for the Royal Navy beginning in 1938. They were a return to a smaller vessel, with a heavier torpedo armament, after the Tribal class that emphasised guns over torpedoes. The ships were built in three flotillas or groups, each consisting of eight ships with names beginning with "J", "K" and "N". The flag superior of the pennant numbers changed from "F" to "G" in 1940.
HMS Diomede was a Danae-class cruiser of the Royal Navy. Constructed at Vickers Armstrong, Barrow, she was constructed too late to take part in World War I and was completed at the Royal Dockyard, Portsmouth. Between the wars, she served on the China Station, Pacific waters, East Indies Waters and from 1936 onwards, in reserve. In World War II she performed four years of arduous war duty, during which time she captured the crew of the German blockade runner Idarwald after she had chased that ship and when the crew scuttled Idarwald. Between 22 July 1942 and 24 September 1943 she was converted to a training ship at Rosyth Dockyard. In 1945 she was placed in reserve and scrapped a year later.
The 3"/50 caliber gun in United States naval gun terminology indicates the gun fired a projectile 3 inches (76 mm) in diameter, and the barrel was 50 calibers long. Different guns of this caliber were used by the U.S. Navy and U.S. Coast Guard from 1900 through to 1990 on a variety of combatant and transport ship classes.
The Le Fantasque class of six large, very fast destroyers was ordered under the French naval programme of 1930. They served in World War II for both Vichy France and the Free French Forces.
HMS Hawkins was the lead ship of her class of five heavy cruisers built for the Royal Navy during the First World War, although the ship was not completed until 1919. She was assigned to the China Station until 1928 and was briefly assigned to the Atlantic Fleet in 1929–1930, always serving as a flagship, before being placed in reserve. Hawkins was recommissioned in 1932 for service on the East Indies Station, but returned to reserve three years later. The ship was disarmed in 1937–1938 and converted into a cadet training ship in 1938.
HMS Frobisher was one of five Hawkins-class heavy cruisers built for the Royal Navy during the First World War. She was not finished during the war and construction proceeded very slowly after the end of the war in 1918. Completed in 1924, the ship was initially assigned to the Mediterranean Fleet and was transferred to the Atlantic Fleet in 1929, sometimes serving as a flagship. Placed in reserve in 1930, Frobisher was converted into a cadet training ship in 1932 before being returned to reserve in 1937. Two years later she was reactivated to again serve as a training ship.
HMS Milne was a M-class destroyer of the Royal Navy which served during World War II. She was equipped as a flotilla leader.
The Neptune class was a proposed class of cruisers planned for the British Royal Navy in the latter years of the Second World War. They were large ships which were to be armed with twelve 6-inch (152 mm) dual-purpose guns and with a heavy secondary armament. Although five ships of the class were planned in 1944, they were cancelled following the end of the war and before construction could begin.
