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Anti-Submarine Division (Royal Navy)
The Anti-Submarine Division its original name, was the former anti-submarine warfare, planning and prevention Directorate of the Admiralty (United Kingdom), Admiralty Department from 1912-1963. History The division evolved out the earlier Anti-Submarine Committee set up in 1910, that coordinated the Admiralty's earliest anti-submarine warfare proposals sent for consideration by the Board of Admiralty. Further systematic assessments and experimentation would take place from 1911 until 1915 when the Board of Invention and Research was established. Efforts were made throughout the First World War to search for a system of countering submarine attacks. Offensive and defensive measures were assessed and sometimes implemented, with different degrees of achievement. However the losses caused by the U-boats in their campaign of unrestricted warfare did have a demoralising effect on national morale leaving the government with no other choice but to be prepared to consider almost every ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-Submarine Committee
An anti-submarine weapon (ASW) is any one of a number of devices that are intended to act against a submarine and its crew, to destroy (sink) the vessel or reduce its capability as a weapon of war. In its simplest sense, an anti-submarine weapon is usually a projectile, missile or bomb that is optimized to destroy submarines. History Before World War I Prior to about 1890, naval weapons were only used against surface shipping. With the rise of the military submarine after this time, countermeasures were considered for use against them. The first submarine installation of torpedo tubes was in 1885 and the first ship was sunk by a submarine-launched torpedo in 1887. There were only two ways of countering the military submarine initially: ramming them or sinking them with gunfire. However, once they were submerged, they were largely immune until they had to surface again. By the start of the First World War there were nearly 300 submarines in service with another 80 in production ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Review (magazine)
''The Naval Review'' was first published in February 1913 by a group of eight Royal Navy officers. They had formed a naval society "to promote the advancement and spreading within the service of knowledge relevant to the higher aspects of the naval profession" in 1912. The eight founders were *Captain Herbert Richmond *Commander Kenneth Dewar *Commander the Hon. Reginald Plunkett *Lieutenant Roger Bellairs *Lieutenant T. Fisher *Lieutenant Henry Thursfield *Captain Edward Harding Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, e ... *Admiral William Henderson (Honorary Editor) The ''Naval Review'' is the journal of professional record of the Royal Navy. The Royal Navy and ''Naval Review'' - an independent journal whose charitable purposes are to serve the interests of the Royal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Admiralty Departments
Admiralty most often refers to: *Admiralty, Hong Kong *Admiralty (United Kingdom), military department in command of the Royal Navy from 1707 to 1964 *The rank of admiral *Admiralty law Admiralty can also refer to: Buildings *Admiralty, Trafalgar Square, a pub in London *Admiralty, Saint Petersburg, Russia * Admiralteyskaya (Saint Petersburg Metro), a metro station in Saint Petersburg, Russia, the name means "Admiralty" *Admiralty Arch in London, England *Admiralty House, London *Admiralty House, Sydney * Dutch Admiralty, a group of follies at Tsarskoye Selo, Russia *Former Admiralty House, Singapore Law * Admiralty court * Admiralty law, also called Maritime Law * Amirauté (New France) Naval organizations *Admiralty (navy), a governmental and/or naval body responsible for the administration of a navy Germany * German Imperial Admiralty, ''Kaiserliche Admiralität'' * German Imperial Admiralty Staff, ''Admiralstab'' Netherlands *Admiralty of Amsterdam *Admiralty of Fries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrophones
A hydrophone ( grc, ὕδωρ + φωνή, , water + sound) is a microphone designed to be used underwater for recording or listening to underwater sound. Most hydrophones are based on a piezoelectric transducer that generates an electric potential when subjected to a pressure change, such as a sound wave. Some piezoelectric transducers can also serve as a sound projector, but not all have this capability, and some may be destroyed if used in such a manner. A hydrophone can detect airborne sounds, but will be insensitive because it is designed to match the acoustic impedance of water, a denser fluid than air. Sound travels 4.3 times faster in water than in air, and a sound wave in water exerts a pressure 60 times that exerted by a wave of the same amplitude in air. Similarly, a standard microphone can be buried in the ground, or immersed in water if it is put in a waterproof container, but will give poor performance due to the similarly bad acoustic impedance match. History The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Q-ship
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 use of Q-ships contributed to the abandonment of cruiser rules restricting attacks on unarmed merchant ships and to the shift to unrestricted submarine warfare in the 20th century. They were used by the British Royal Navy and the German ''Kaiserliche Marine'' during the First World War and by the Royal Navy, the '' Kriegsmarine'', and the United States Navy during the Second World War (1939–45). Etymology Short for Queenstown in Ireland, as Haulbowline Dockyard in Cork Harbour was responsible for the conversion of many mercantile steamers to armed decoy ships in World War One, although the majority appear to have been converted in larger navy yards such as Devonport. Early uses of the concept In the 1670s, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patrol Boats
A patrol boat (also referred to as a patrol craft, patrol ship, or patrol vessel) is a relatively small naval vessel generally designed for coastal defence, border security, or law enforcement. There are many designs for patrol boats, and they generally range in size. They may be operated by a nation's navy, coast guard, police, or customs, and may be intended for marine ("blue water"), estuarine ("green water"), or river ("brown water") environments. Per their name, patrol boats are primarily used to patrol a country's exclusive economic zone (EEZ), but they may also be used in other roles, such as anti-smuggling, anti-piracy, fishery patrols, immigration law enforcement, or search and rescue. Depending on the size, organization, and capabilities of a nation's armed forces, the importance of patrol boats may range from minor support vessels that are part of a coast guard, to flagships that make up a majority of a navy's fleet. Their small size and relatively low cost make them ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humphrey T
Humphrey is both a masculine given name and a surname. An earlier form, not attested since Medieval times, was Hunfrid. Notable people with the name include: People with the given name Medieval period :''Ordered chronologically'' *Hunfrid of Prüm (Saint Humphrey, died 871), Benedictine monk * Humphrey of Hauteville (c. 1010–1057), Count of Apulia *Humphrey de Bohun (other), various people who lived from the 11th to 14th centuries *Humphrey of Toron (other), four 12th-century nobles *Humphrey, 2nd Earl of Buckingham (1381–1399), English peer and member of the House of Lords *Humphrey, Duke of Gloucester (1390–1447) Modern era *Humphrey Atkins (1922–1996), British politician and a member of the Conservative Party *Humphrey Barclay (1941–), British television comedy producer. * Humphrey Bate (1875–1936), American harmonica player and string band leader *Humphrey Bland (1686–1763), British Army general * Humphrey Bogart (1899–1957), American film ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederic Charles Dreyer
Admiral Sir Frederic Charles Dreyer, (8 January 1878 – 11 December 1956) was an officer of the Royal Navy. A gunnery expert, he developed a fire control system for British warships, and served as flag captain to Admiral Sir John Jellicoe at the Battle of Jutland. He retired with the rank of admiral in 1943, having served through two world wars and having already retired once. Background and early life Frederic Dreyer was born on 8 January 1878 in the Irish town of Parsonstown (now Birr) in King's County (now County Offaly), the second son of the Danish-born astronomer John Louis Emil Dreyer who was director of the Armagh Observatory. Educated at The Royal School, Armagh, in 1891 Dreyer joined the Royal Navy and entered the Royal Naval College, Dartmouth. Royal Navy career Early years At Dartmouth Dreyer performed well in his examinations and was placed fifth in his term. He then served as a midshipman in HMS ''Anson'' (1893–1896) and HMS ''Barfleur'' (1896–1897). In ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Duff (Royal Navy Officer)
Admiral Sir Alexander Ludovic Duff (20 February 1862 – 22 November 1933) was a Royal Navy officer who served as Commander-in-Chief, China Station. Naval career Duff joined the Royal Navy as a Midshipman in 1875. He was promoted Commander in 1897, and served in command of the destroyer HMS Bat in home waters from January 1898 to January 1900. In March that year, he was posted to the HMS ''Excellent'' for senior officers' gunnery course at the gunnery school based there. Promoted Captain in 1902, and Rear-admiral in 1913. In 1905 he was appointed Naval Assistant to the Controller of the Navy. In 1909, he was given command of ''HMS Temeraire''. He was Director of the Mobilisation Division at the Admiralty from 1912 through the start of the war. He served in World War I as Rear-Admiral (Second-in-Command) of the 4th Battle Squadron from 1914 to 1916, taking part in the Battle of Jutland in 1916, where he flew his flag in '' HMS Superb''. He was transferred to the F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auxiliary Patrol
The Auxiliary Patrol was an antisubmarine patrols initiative by the British to help combat German submarine operations in the early stages of World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin .... It was under the command of the Admiral of Patrols at the British Admiralty, Admiralty and was the pioneer of anti-submarine warfare. History On May 1, 1912 the post of Admiral of Patrols was established responsible for five destroyer flotilla's covering waters around the British Isles. In 1914, the Board of Admiralty sent an order the Admiralty War Staff to re-evaluate the functional role the patrol flotillas off the Eastern Coast of Britain the First Sea Lord indicated that the current function of patrolling would now be that of coastal defence. After the implementation took pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ministry Of Defence (United Kingdom)
The Ministry of Defence (MOD or MoD) is the department responsible for implementing the defence policy set by His Majesty's Government, and is the headquarters of the British Armed Forces. The MOD states that its principal objectives are to defend the United Kingdom of Great Britain and Northern Ireland and its interests and to strengthen international peace and stability. The MOD also manages day-to-day running of the armed forces, contingency planning and defence procurement. The expenditure, administration and policy of the MOD are scrutinised by the Defence Select Committee, except for Defence Intelligence which instead falls under the Intelligence and Security Committee of Parliament. History During the 1920s and 1930s, British civil servants and politicians, looking back at the performance of the state during the First World War, concluded that there was a need for greater co-ordination between the three services that made up the armed forces of the United Kingdom: t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Admiralty Research Laboratory
The Admiralty Research Laboratory (ARL) was a research laboratory that supported the work of the UK Admiralty in Teddington, London, England from 1921 to 1977. History During the First World War, the Anti-Submarine Division of the Admiralty had established experimental stations at Hawkcraig (Aberdour) and Parkeston Quay, Harwich, with out-stations at Dartmouth and Wemyss Bay, to work on submarine detection methods. The Admiralty also established an experimental station at Shandon, Dumbartonshire, working with the Lancashire Anti-Submarine Committee and the Clyde Anti-Submarine Committee, which subsequently moved to Teddington in 1921, becoming the Admiralty Research Laboratory. Its main fields of research expanded to include oceanography (it housed the National Institute of Oceanography, 1949–1953); electromagnetics and degaussing; underwater ballistics; visual aids; acoustics; infra-red radiation; photography and assessment techniques. It moved to Teddington, southwest of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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