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British T-class Submarine
The Royal Navy's T class (or ''Triton'' class) of diesel-electric submarines was designed in the 1930s to replace the Odin-class submarine, O, Parthian-class submarine, P, and Rainbow-class submarine, R classes. Fifty-three members of the class were built just before and during the Second World War, where they played a major role in the Royal Navy's submarine operations. Four boats in service with the Royal Netherlands Navy were known as the Zwaardvisch-class submarine, ''Zwaardvisch'' class.Raven (1988), p. 179. At the start of the Second World War the T class was, with the British British S-class submarine (1931), S and British U-class submarine, U class, Dutch and German Type VII submarine, Type VII, one of the most advanced submarine classes in service. In the decade following the war, the oldest surviving boats were scrapped and the remainder converted to anti-submarine vessels to counter the growing Cold War, Soviet submarine threat. The Royal Navy disposed of its last o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Navy
The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 million tons in 2021. It has the world's largest aircraft carrier fleet, with List of aircraft carriers in service, eleven in service, one undergoing trials, two new carriers under construction, and six other carriers planned as of 2024. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the U.S. Navy is the third largest of the United States military service branches in terms of personnel. It has 299 deployable combat vessels and about 4,012 operational aircraft as of 18 July 2023. The U.S. Navy is one of six United States Armed Forces, armed forces of the United States and one of eight uniformed services of the United States. The United States Navy traces its origins to the Continental Navy, which was established during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British S-class Submarine (1931)
The S-class submarines of the Royal Navy were originally designed and built during the modernisation of the submarine force in the early 1930s to meet the need for smaller boats to patrol the restricted waters of the North Sea and the Mediterranean Sea, replacing the British H-class submarines. As part of the major naval construction for the Royal Navy during the Second World War, the S class became the single largest group of submarines ever built for the Royal Navy. A total of 62 were constructed over a period of 15 years, with fifty of the "improved" S class being launched between 1940 and 1945. At the start of the Second World War the S class was together with the British British U-class submarine, U and British T-class submarine, T class, Dutch and German Type VII submarine, Type VII one of the most advanced submarine classes in service at the time. Service The submarines operated in the waters around the United Kingdom and in the Mediterranean, and later in the Far East ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asdic
Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances ( ranging), communicate with or detect objects on or under the surface of the water, such as other vessels. "Sonar" can refer to one of two types of technology: ''passive'' sonar means listening for the sound made by vessels; ''active'' sonar means emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. Acoustic location in air was used before the introduction of radar. Sonar may also be used for robot navigation, and sodar (an upward-looking in-air sonar) is used for atmospheric investigations. The term ''sonar'' is also used for the equipment used to generate and receive the sound. The acoustic frequencies used in sonar systems vary from very low ( infrasonic) to e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Noel Laurence
Admiral Sir Noel Frank Laurence (27 December 1882 – 26 January 1970) was a notable Royal Navy submarine commander during the First World War. Early life Laurence was born in 1882 in Kent, the son of Frederic Laurence, . He joined the Royal Navy in 1899. By 1904 he was a lieutenant and a submarine specialist. Naval service In 1914, he commanded the submarine , it operated in the Baltic Sea to attack the German High Seas Fleet. While in the Baltic Laurence worked with the Russians and in 1915 ''E1'' stopped a naval attack on Riga when it sank a German transport and damaged the battlecruiser . As well as being awarded the Distinguished Service Order for his work in the Baltic the Russians awarded him the Order of St. George (4th Class) and the Order of St Vladimir (4th Class with swords). Laurence's next command was the submarine which torpedoed two German battleships near Jutland. He was awarded a bar to his Distinguished Service Order for his further operation in submarines i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rear Admiral Submarines
Commodore Submarine Service is a post in the Royal Navy which involves command of the Royal Navy Submarine Service. It evolved from the post of Inspecting Captain of Submarines in 1901 and would later evolve to become the post of Flag Officer Submarines in 1944. History In 1904 the Admiralty created the post of ''Inspecting Captain of Submarines'' which lasted until August 1912 when Captain Roger J. B. Keyes was appointed Commodore, Submarine Service. He held that position until February 1919 when the post holder was renamed Chief of the Submarine Service. It was for many years located at HMS ''Dolphin'' in Hampshire. On 30 August 1939 Rear Admiral Submarines, Rear Admiral Bertram Watson, moved his headquarters from Gosport to Aberdour, Scotland, though the administrative staff remained at Gosport. The RN started the Second World War with 60 submarines. On 31 August 1939 the Second Submarine Flotilla at Dundee ( and ten submarines) and the Sixth Submarine Flotilla at Blyth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Japanese Navy
The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, Potsdam Declaration, when it was dissolved following surrender of Japan, Japan's surrender in World War II. The Japan Maritime Self-Defense Force (JMSDF) was formed between 1952 and 1954 after the dissolution of the IJN. The IJN was the third largest navy in the world by 1920, behind the Royal Navy and the United States Navy (USN). It was supported by the Imperial Japanese Navy Air Service for reconnaissance and airstrike operations from the fleet. It was the primary opponent of the Allies of World War II, Western Allies in the Pacific War. The IJN additionally fielded Imperial Japanese Navy land forces, limited land-based forces, including Special Naval Landing Forces, professional marines, Japanese marine paratroopers of World War II, marine paratrooper units, anti-aircraft defense units ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stanley Baldwin
Stanley Baldwin, 1st Earl Baldwin of Bewdley (3 August 186714 December 1947), was a British statesman and Conservative politician who was prominent in the political leadership of the United Kingdom between the world wars. He was prime minister on three occasions, from May 1923 to January 1924, from November 1924 to June 1929 and from June 1935 to May 1937. Born to a prosperous family in Bewdley, Worcestershire, Baldwin was educated at Hawtreys, Harrow School and Trinity College, Cambridge. He joined the family iron- and steel-making business and entered the House of Commons in 1908 as the member for Bewdley, succeeding his father Alfred. He was Financial Secretary to the Treasury (1917–1921) and President of the Board of Trade (1921–1922) in the coalition ministry of David Lloyd George and then rose rapidly. In 1922, Baldwin was one of the prime movers in the withdrawal of Conservative support from Lloyd George; he subsequently became Chancellor of the Exchequer in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Government (United Kingdom)
In the politics of the United Kingdom, a National Government is a coalition of some or all of the major political parties. In a historical sense, it refers primarily to the governments of Ramsay MacDonald, Stanley Baldwin and Neville Chamberlain which held office from 1931 until 1940. The all-party coalitions of H. H. Asquith and David Lloyd George in the First World War were sometimes referred to as National Governments at the time, but are now more commonly called Coalition Governments. The term "National Government" was chosen to dissociate itself from negative connotations of the earlier coalitions. Similarly the all-party government of Winston Churchill in the Second World War was generally referred to as the National Government at the time. Crisis of 1931 The Wall Street crash of 1929 heralded the global Great Depression and Britain was hit, although not as badly as most countries. The government was trying to achieve several different, contradictory objective ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Admiralty (United Kingdom)
The Admiralty was a department of the Government of the United Kingdom that was responsible for the command of the Royal Navy. Historically, its titular head was the Lord High Admiral – one of the Great Officers of State. For much of its history, from the early 18th century until its abolition, the role of the Lord High Admiral was almost invariably put "in commission" and exercised by the Lords Commissioner of the Admiralty, who sat on the governing Board of Admiralty, rather than by a single person. The Admiralty was replaced by the Admiralty Board in 1964, as part of the reforms that created the Ministry of Defence and its Navy Department (later Navy Command). Before the Acts of Union 1707, the Office of the Admiralty and Marine Affairs administered the Royal Navy of the Kingdom of England, which merged with the Royal Scots Navy and then absorbed the responsibilities of the Lord High Admiral of the Kingdom of Scotland with the unification of the Kingdom of Great B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second London Naval Treaty
The Second London Naval Treaty was an international treaty signed as a result of the Second London Naval Disarmament Conference held in London. The conference started on 9 December 1935 and the treaty was signed by the participating nations on 25 March 1936. Treaty The signatories were France, the United States, and the major constituents of the British Empire: Australia, Canada, India, New Zealand, and the United Kingdom (on behalf of itself and "all parts of the British Empire which are not separate Members of the League of Nations"). Two Commonwealth Dominions declined to sign: South Africa and the Irish Free State, the latter because it had no navy. Japan, a signatory of the First London Naval Treaty and already at war on the Asian mainland, withdrew from the conference on 15 January. Italy also declined to sign the treaty, largely as a result of the controversy over its invasion of Abyssinia (Ethiopia); Italy was under sanctions from the League of Nations. The confere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Naval Treaty
The London Naval Treaty, officially the Treaty for the Limitation and Reduction of Naval Armament, was an agreement between the United Kingdom, Empire of Japan, Japan, French Third Republic, France, Kingdom of Italy, Italy, and the United States that was signed on 22 April 1930. Seeking to address issues not covered in the 1922 Washington Naval Treaty, which had created tonnage limits for each nation's Surface combatant, surface warships, the new agreement regulated submarine warfare, further controlled cruisers and destroyers, and limited naval shipbuilding. Ratifications were exchanged in London on 27 October 1930, and the treaty went into effect on the same day, but it was largely ineffective. The treaty was registered in ''Treaty series#League of Nations, League of Nations Treaty Series'' on 6 February 1931. Conference The signing of the treaty remains inextricably intertwined with the ongoing negotiations, which began before the official start of the London Naval Confer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington Naval Treaty
The Washington Naval Treaty, also known as the Five-Power Treaty, was signed during 1922 among the major Allies of World War I, Allies of World War I, which agreed to prevent an arms race by limiting Navy, naval construction. It was negotiated at the Washington Naval Conference in Washington, D.C. from November 1921 to February 1922 and signed by the governments of the British Empire (including the United Kingdom, Canada, Australia, New Zealand, South Africa and India), United States, French Third Republic, France, Kingdom of Italy, Italy, and Empire of Japan, Japan. It limited the construction of battleships, battlecruisers and aircraft carriers by the signatories. The numbers of other categories of warships, including cruisers, destroyers, and submarines, were not limited by the treaty, but those ships were limited to 10,000 tons displacement (ship), displacement each. The treaty was finalized on February 6, 1922. Ratifications of it were exchanged in Washington on August 17, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
