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Torpedo Data Computer
The Torpedo Data Computer (TDC) was an early electromechanical analog computer used for torpedo fire-control on American submarines during World War II. Britain, Germany, and Japan also developed automated torpedo fire control equipment, but none were as advanced as the US Navy's TDC, as it was able to automatically track the target rather than simply offering an instantaneous firing solution. This unique capability of the TDC set the standard for submarine torpedo fire control during World War II. While the TDC's target tracking abilities were unique for submarine torpedo fire control during WWII, target tracking was used on surface ship torpedo fire control systems by a number of nations (see references in this article tUS destroyeranJapanese torpedo fire control). The TDC was the first analog computer to miniaturize the capability enough for deployment on a submarine. Replacing the previously standard hand-held slide rule-type devices (known as the "banjo" and "is/was"), the TDC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Edson Dornin
Robert Edson "Dusty" Dornin (December 30, 1912, Berkeley, California – August 31, 1982) was a United States Navy officer who served in the Pacific Theater of World War II as a very successful submarine commander. He remained in the Navy until his retirement in 1965. Pre-war Dornin entered the United States Naval Academy in 1931. He was an outstanding athlete on the basketball and lacrosse teams, but made his biggest mark in sports as a football end or wide receiver, teaming with Buzz Borries and Slade Cutter to form a powerful "troika" (numerous sources state he was an All-American, though he is not mentioned in the 1935 College Football All-America Team or any prior 1930s teams). Both his teammates would also distinguish themselves in the coming war, with Cutter also making his mark as a submariner. Cutter would later recall that Dornin "studied all the time"; he graduated 48th out of 442 in the Class of 1935. After serving on the battleship (1935–37) and the destroye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bureau Of Ordnance
The Bureau of Ordnance (BuOrd) was a United States Navy organization, which was responsible for the procurement, storage, and deployment of all naval weapons, between the years 1862 and 1959. History Congress established the Bureau in the Department of the Navy by an act of July 5, 1862 (12 Stat. 510), which transferred the hydrographic functions of the Navy's Bureau of Ordnance and Hydrography (1842–1862) to the newly established Bureau of Navigation. During the early 20th century, BuOrd became involved in the development of aerial weapons. This often led to friction with the Bureau of Aeronautics (BuAer), which had responsibility for the development of Naval aircraft. BuAer's work on "pilotless aircraft," or drones, conflicted with BuOrd's development of guided missiles. After World War II, the Navy examined ways to improve coordination between the two bureaus; ultimately, the decision was made to merge the two organizations into a new bureau, to be known as the Burea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nasmith Director
This page includes variants Nasmith, Nasmyth, and Naysmith. General * Naismith's Rule, used in hiking * Nasmyth telescope * Primary enamel cuticle, also known as ''Nasmyth's membrane'' Places * Naismith, Montana * Nasmyth (crater) on the Moon Companies * McClure Naismith, Scottish commercial solicitors * Nasmyth, Gaskell and Company (1836–1850), production of heavy machine tools and locomotives, later James Nasmyth and Company (1850–1857), Patricroft Ironworks (1857–1867), Nasmyth, Wilson and Company (1867–1940) People Naismith (Nasmith, Nasmyth, Naysmith) is an occupational surname for a cutler, and may refer to: Naismith * Alby Naismith (born 1917), Australian rules footballer * Charlie Naismith (1881–unknown), Australian rules footballer * James Naismith (1861–1939), Canadian sports coach and innovator, inventor of basketball * James Naismith (chemist) (born 1968), chemical biologist * Jason Naismith (born 1994), Scottish footballer * Jon Naismith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark VIII Angle Solver
Mark may refer to: Currency * Bosnia and Herzegovina convertible mark, the currency of Bosnia and Herzegovina * East German mark, the currency of the German Democratic Republic * Estonian mark, the currency of Estonia between 1918 and 1927 * Finnish markka ( sv, finsk mark, links=no), the currency of Finland from 1860 until 28 February 2002 * Mark (currency), a currency or unit of account in many nations * Polish mark ( pl, marka polska, links=no), the currency of the Kingdom of Poland and of the Republic of Poland between 1917 and 1924 German * Deutsche Mark, the official currency of West Germany from 1948 until 1990 and later the unified Germany from 1990 until 2002 * German gold mark, the currency used in the German Empire from 1873 to 1914 * German Papiermark, the German currency from 4 August 1914 * German rentenmark, a currency issued on 15 November 1923 to stop the hyperinflation of 1922 and 1923 in Weimar Germany * Lodz Ghetto mark, a special currency for Lodz Ghetto. * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War I
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fighting occurring throughout Europe, the Middle East, Africa, the Pacific Ocean, Pacific, and parts of Asia. An estimated 9 million soldiers were killed in combat, plus another 23 million wounded, while 5 million civilians died as a result of military action, hunger, and disease. Millions more died in Genocides in history (World War I through World War II), genocides within the Ottoman Empire and in the Spanish flu, 1918 influenza pandemic, which was exacerbated by the movement of combatants during the war. Prior to 1914, the European great powers were divided between the Triple Entente (comprising French Third Republic, France, Russia, and British Empire, Britain) and the Triple A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ARA General Belgrano
ARA ''General Belgrano'' (C-4) was an Argentine Navy light cruiser in service from 1951 until 1982. Originally commissioned by the U.S. as , she saw action in the Pacific theatre of World War II before being sold by the United States to Argentina. The vessel was the second to have been named after the Argentine founding father Manuel Belgrano (1770–1820). The first vessel was a 7,069-ton armoured cruiser completed in 1896. She was sunk on 2 May 1982 during the Falklands War by the Royal Navy submarine with the loss of 323 lives. Losses from ''General Belgrano'' totalled just under half of Argentine military deaths in the war. She is the only ship to have been sunk during military operations by a nuclear-powered submarine and the second sunk in action by any type of submarine since World War II (the first being the Indian frigate , which was sunk by the Pakistani submarine during the 1971 Indo-Pakistani War). Early career The warship was built as , the sixth ship of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acoustic Homing
Acoustic homing is a system which uses the acoustic signature (sound) of a target to guide a moving object, such as a torpedo A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, s .... Acoustic homing can be either passive or active in nature. Using passive homing, the system is designed to move either toward or away from a sound, and may also be designed to move only toward certain types of sounds to the exclusion of others, while active homing makes use of active sonar. The system emits a sound pulse that reflects off objects and then back to the system, where the system processes the echos to determine the proper response. Method An object can be equipped with two or more acoustic transducers, which function as speakers and microphones. If a transducer receives a sound louder than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaiten
were crewed torpedoes and suicide craft, used by the Imperial Japanese Navy in the final stages of World War II. History In recognition of the unfavorable progress of the war, towards the end of 1943 the Japanese high command considered suggestions for various suicide craft. These suggestions were initially rejected, but later deemed necessary. Various suicide craft were developed in the Japanese Special Attack Units. For the Navy, this meant ''Kamikaze'' planes, '' Shinyo'' suicide boats, ''Kaiten'' submarines, and '' Fukuryu'' suicide divers or human mines. The ''Kamikazes'' were somewhat successful, and the second most successful were the ''Kaitens''. Research on the first Kaiten began in February 1944, followed on 25 July of the same year by the first prototype. By 1 August, an order for 100 units had been placed. Development The very first Kaiten was nothing much more than a Type 93 torpedo engine compartment attached to a cylinder that would become the pilot's c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homing Torpedo
A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, such a device was called an automotive, automobile, locomotive, or fish torpedo; colloquially a ''fish''. The term ''torpedo'' originally applied to a variety of devices, most of which would today be called mines. From about 1900, ''torpedo'' has been used strictly to designate a self-propelled underwater explosive device. While the 19th-century battleship had evolved primarily with a view to engagements between armored warships with large-caliber guns, the invention and refinement of torpedoes from the 1860s onwards allowed small torpedo boats and other lighter surface vessels, submarines/submersibles, even improvised fishing boats or frogmen, and later light aircraft, to destroy large ships without the need of large guns, though s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Whitehead
Robert Whitehead (3 January 1823 – 14 November 1905) was an English engineer who was most famous for developing the first effective self-propelled naval torpedo. Early life He was born in Bolton, England, the son of James Whitehead, a cotton-bleacher, and his wife Ellen Whitehead née Swift. He trained as an engineer and draughtsman, and attended the Mechanics' Institute, Manchester. His first professional employment was at a shipyard in Toulon, France, for Philip Taylor & Sons, and then as a consultant engineer in Milan, Italy. He then moved to Trieste, on the Adriatic coast of Austria. Whitehead's work in Trieste was noticed by the owners of ''Fonderia Metalli'', a metal foundry in the nearby city of Fiume (today Rijeka, Croatia). In 1856, Whitehead became manager of the company, and changed its name to ''Stabilimento Tecnico di Fiume'' (STF). STF produced marine steam boilers and engines, which were the most modern products of that era. The Austrian Navy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco
San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of California cities by population, fourth most populous in California and List of United States cities by population, 17th most populous in the United States, with 815,201 residents as of 2021. It covers a land area of , at the end of the San Francisco Peninsula, making it the second most densely populated large U.S. city after New York City, and the County statistics of the United States, fifth most densely populated U.S. county, behind only four of the five New York City boroughs. Among the 91 U.S. cities proper with over 250,000 residents, San Francisco was ranked first by per capita income (at $160,749) and sixth by aggregate income as of 2021. Colloquial nicknames for San Francisco include ''SF'', ''San Fran'', ''The '', ''Frisco'', and '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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