German submarine U-556 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. She was laid down on 2 January 1940 at the Blohm & Voss yard in Hamburg as yard number 532, launched on 7 December 1940, and commissioned on 6 February 1941 under the command of Kapitänleutnant Herbert Wohlfarth, who commanded her for her entire career that lasted less than five months. U-556 conducted only two patrols, sinking six ships totalling 29,552 gross register tons (GRT) and damaging one other of 4,986 GRT, before she was sunk on 27 June 1941.
Q-ships, also known as Q-boats, decoy vessels, special service ships, or mystery ships, were heavily armed merchant ships with concealed weaponry, designed to lure submarines into making surface attacks. This gave Q-ships the chance to open fire and sink them.
The Flower-class corvette was a British class of 294 corvettes used during World War II by the Allied navies particularly as anti-submarine convoy escorts in the Battle of the Atlantic. Royal Navy ships of this class were named after flowers.
HMS K13 was a steam-propelled First World War K class submarine of the Royal Navy. She sank in a fatal accident during sea trials in early 1917 and was salvaged and recommissioned as HMS K22.
The Type 41 or Leopard class were a class of anti-aircraft defence frigates built for the Royal Navy and Indian Navy in the 1950s. The Type 41, together with the Type 61 variant, introduced diesel propulsion into the Royal Navy, the perceived benefits being long range, low fuel use, reduced crew, and reduced complexity.
HMS President is a retired Flower-class Q-ship that was launched in 1918. She was renamed HMS President in 1922 and moored permanently on the Thames as a Royal Navy Reserve drill ship. In 1982 she was sold to private owners and, having changed hands twice, served as a venue for conferences and functions as well as the offices for a number of media companies. She has been moved to Chatham on the Medway in Kent since 2016, but is due to return to the capital. She had the suffix "(1918)" added to her name in order to distinguish her from HMS President, the Royal Naval Reserve base in St Katharine Docks. She is one of the last three surviving Royal Navy warships of the First World War. She is also the sole representative of the first type of purpose built anti-submarine vessels, and is the ancestor of World War II convoy escort sloops, which evolved into modern anti-submarine frigates.
The history of the submarine goes back to antiquity. Humanity has employed a variety of methods to travel underwater for exploration, recreation, research and significantly, warfare. While early attempts, such as those by Alexander the Great, were rudimentary, the advent of new propulsion systems, fuels, and sonar, propelled an increase in submarine technology. The introduction of the diesel engine, then the nuclear submarine, saw great expansion in submarine use — and specifically military use — during World War I, World War II, and the Cold War. The Second World War use of the U-Boat by the Kriegsmarine against the Royal Navy and commercial shipping, and the Cold War's use of submarines by the United States and Russia, helped solidify the submarine's place in popular culture. The latter conflicts also saw an increasing role for the military submarine as a tool of subterfuge, hidden warfare, and nuclear deterrent. The military use of submarines continues to this day, predominantly by North Korea, China, the United States and Russia.
HMS Safari was a third batch S-class submarine built for the Royal Navy during World War II. Commissioned in 1942, she was assigned to operate in the Mediterranean Sea. During the course of the war, Safari sank twenty-five ships, most of which were Italian.
HMS Severn (N57) was an ocean-going submarine of the River class. She was built by Vickers Armstrong, at Barrow, and launched on 16 January 1934. She was completed on 12 January 1935.
The S class was a class of three submarines, built by Scotts in Greenock, Scotland for the Royal Navy, and launched in 1914–1915. The boats were an experimental design for the Royal Navy, based on an Italian design by Cesare Laurenti and the FIAT-San Giorgio works. The S class was the first British submarine to be built in Scotland, and the first to feature a double hull. The boats were not considered a success, and were not popular with Royal Navy officers. S1 and S2 saw limited service in the North Sea during the start of the First World War, before all three boats of the class were transferred to the Italian Regia Marina upon its entry to the war in 1915. In Italian service, S1 and S2 were active in the Adriatic Sea, and S3 was part of the Submarine School. All three were stricken in 1919 after the war, and scrapped.
HMS Sea Rover was a third-batch S-class submarine built for the Royal Navy during World War II. Completed in July 1943, she conducted one war patrol off Norway, before being re-assigned to the Pacific theater. Arriving in February 1944, the boat conducted several patrols in the Strait of Malacca, sinking one transport, one gunboat, one merchant, three sailing vessels, two coasters, and one lighter. During this time, she was attacked several times by aircraft and surface ships; in one attack, she took on two tons of water from leaks caused by depth charges. Sea Rover collided with an Australian corvette in December 1944, and she was sent back to England, then the United States, for repairs. After the war ended, the boat was sent back to England, placed in reserve, then sold for scrap in October 1949.
HMS Sibyl was an S-class submarine built for the Royal Navy during the Second World War, and part of the Third Group built of that class. She was built by Cammell Laird and launched on 29 April 1942.
HMS P222 was a third-batch S-class submarine built for the Royal Navy during World War II. Commissioned in 1942, the boat had an uneventful first war patrol in the Alboran Sea. She intercepted the Vichy French merchant ship SS Mitidja in July, then provided protection for an Allied convoy to Malta in Operation Pedestal the next month. The navy intended that she was to be sighted on the surface by enemy aircraft to discourage potential attacks by surface warships. Though P222 did not encounter enemy forces, the convoy arrived at its destination on 15 August after sustaining severe losses. She then reconnoitred along the coast of Algeria in advance of Operation Torch, and was attacked by a French patrol ship, but sustained no damage.
The Balilla class were the first submarines to be built for the Italian navy following the end of World War I. They were large ocean-going cruiser submarines designed to operate in the Indian Ocean based in Italy's East African colonies. The design was double-hulled and based on the German Type UE II submarine U-boats, one of which, U-120 was supplied to the Italians as a war reparation. A 425 horsepower (317 kW) auxiliary diesel engine was installed as an extra generator.
HMS Rover was a Rainbow-class submarine designed and built by Vickers Shipbuilding and Engineering in Barrow-in-Furness for the Royal Navy and was launched on 11 June 1930. During its early career, Rover served in the Far East. During World War II, the submarine operated in the Mediterranean Sea, attacking several Italian convoys and providing assistance to the crippled cruiser HMS York during the evacuation of Crete in 1941, before returning to the Far East to operate against the Japanese. The vessel survived the war and was sold for scrap in 1946.
HMS Ekins (K552) was a British Captain-class frigate of the Royal Navy that served during World War II. Originally constructed as a United States Navy Buckley class destroyer escort, she served in the Royal Navy from 1943 to 1945.
The second HMS Wivern, was a Modified W-class destroyer of the British Royal Navy that saw service in World War II.
HMS Dart (K21) was a River-class frigate of the Royal Navy. Dart was built to the RN's specifications as a Group I River-class frigate.
HMS Dianella was a Flower-class corvette of the Royal Navy. She served during the Second World War.
HMS Teviot (K222) was a River-class frigate of the Royal Navy (RN) from 1942–1955. She served in convoy defence duties in the North Atlantic and Eastern Fleet during World War II. After the war, she served in the South African Navy as HMSAS Teviot before returning to Royal Navy service after six months. Teviot was built to the RN's specifications as a Group I River-class frigate.
Royal Navy 