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Nuclear Submarines
A nuclear submarine is a submarine powered by a nuclear reactor, but not necessarily nuclear weapons, nuclear-armed. Nuclear submarines have considerable performance advantages over "conventional" (typically Marine diesel engine, diesel-electric) submarines. Nuclear marine propulsion, Nuclear propulsion, being completely independent of air, frees the submarine from the need to surface frequently, as is necessary for conventional submarines. The large amount of power generated by a nuclear reactor allows nuclear submarines to operate at high speed for long periods, and the long interval between Refueling and overhaul, refuelings grants a virtually unlimited range, making the only limits on voyage times factors such as the need to restock food or other consumables. Thus nuclear propulsion solves the problem of limited mission duration that all electric (Electric battery, battery or fuel cell powered) submarines face. The high cost of nuclear technology means that relatively few ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astute-class Submarine
The ''Astute'' class is the latest class of Nuclear marine propulsion, nuclear-powered attack submarines in service with the Royal Navy. The boats are constructed by BAE Systems Submarines at Barrow-in-Furness. Seven boats will be constructed: the first of class, , was launched by Queen Camilla, Camilla, Duchess of Cornwall, in 2007, Commissioned (ship), commissioned in 2010, and declared fully operational in May 2014. The ''Astute'' class is the replacement for the fleet submarines in Royal Navy service. Development Batch 2 ''Trafalgar'' class The ''Astute''-class programme began in February 1986 when the Ministry of Defence (United Kingdom), Ministry of Defence (MOD) launched a number of studies intended to determine the capabilities and requirements for the replacement of its ''Swiftsure'' and ''Trafalgar''-class fleet submarines. These studies, called project SSN20, were conducted during the Cold War, when the Royal Navy maintained a strong emphasis on anti-submarine warfar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cruise-missile Submarine
A cruise missile submarine is a submarine that carries and launches cruise missiles ( SLCMs consisting of land-attack cruise missiles and anti-ship missiles) as its primary armament. Missiles greatly enhance a warship's ability to attack surface combatants and strike land targets; although torpedoes are a more discreet option for submerged submarines, missiles give a much longer stand-off range, shorter time to impact the target, as well as the ability to engage multiple targets on different headings at the same time. Many cruise missile submarines retain the capability to deploy nuclear warheads on their missiles, but they are considered distinct from ballistic missile submarines due to the substantial differences between the two weapons systems' flight characteristics; cruise missiles fly aerodynamically using flight surfaces like wings or fins, while a ballistic missile uses its engine power alone as it may exit the atmosphere. The United States Navy's hull classification s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Navy
The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom of England, English and Kingdom of Scotland, Scottish kings from the early Middle Ages, medieval period, the first major maritime engagements were fought in the Hundred Years' War against Kingdom of France, France. The modern Royal Navy traces its origins to the English Navy of the early 16th century; the oldest of the British Armed Forces, UK's armed services, it is consequently known as the Senior Service. From the early 18th century until the World War II, Second World War, it was the world's most powerful navy. The Royal Navy played a key part in establishing and defending the British Empire, and four Imperial fortress colonies and a string of imperial bases and coaling stations secured the Royal Navy's ability to assert naval superior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ross Gunn
Ross Gunn (May 12, 1897 – October 15, 1966) was an American physicist who worked on the Manhattan Project during World War II. The New York Times described him as "one of the true fathers of the nuclear submarine program". From 1927 to 1947, Gunn worked at the Naval Research Laboratory. He was the author of over 28 papers, and received 45 patents. He designed radio devices for controlling aircraft, which were used in the development of the first drones. He was one of the first to appreciate the possibility of using nuclear power for submarine propulsion. During World War II he was involved in the development of thermal diffusion technology for isotope separation. After the war Gunn became director of the Weather Bureau's Physical Research Division, where he carried out a series of studies into atmospheric phenomena. In 1958 he became a professor of physics at American University, a position he held until his death in 1966. Early life Ross Gunn was born in Cleveland, Ohio, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Research Laboratory
The United States Naval Research Laboratory (NRL) is the corporate research laboratory for the United States Navy and the United States Marine Corps. Located in Washington, DC, it was founded in 1923 and conducts basic scientific research, applied research, technological development and prototyping. The laboratory's specialties include plasma physics, space physics, materials science, and tactical electronic warfare. NRL is one of the first US government scientific R&D laboratories, having opened in 1923 at the instigation of Thomas Edison, and is currently under the Office of Naval Research. As of 2016, NRL was a United States Navy Working Capital Fund, Navy Working Capital Fund activity, which means it is not a line-item in the US Federal Budget. Instead of direct funding from Congress, all costs, including overhead, were recovered through sponsor-funded research projects. NRL's research expenditures were approximately $1 billion per year. Research The Naval Research L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States 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] |
NR-1 986
Deep Submergence Vessel ''NR-1'' was a unique United States Navy (USN) nuclear-powered ocean engineering and research submarine, built by the Electric Boat Division of General Dynamics at Groton, Connecticut. ''NR-1'' was launched on 25 January 1969, completed initial sea trials 19 August 1969, and was home-ported at Naval Submarine Base New London. ''NR-1'' was the smallest nuclear submarine ever put into operation. The vessel was casually known as "Nerwin" and was never officially named or commissioned. The U.S. Navy is allocated a specific number of warships by the U.S. Congress, but Admiral Hyman Rickover avoided using one of those allocations for the construction of ''NR-1'' in order to circumvent the oversight that a warship receives from various bureaus. History ''NR-1''s missions included search, object recovery, geological survey, oceanographic research, and installation and maintenance of underwater equipment. ''NR-1'' had the unique capability to remain at one site a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Nautilus SSN-571 - 0857101
USS may refer to: Arts, entertainment, and media * Ubiquitous Synergy Seeker, a Canadian band * Universal Studios Singapore, a theme park in Singapore Businesses and organizations * Union of Sovereign States, the planned successor to the Soviet Union * Union Switch & Signal, a supplier of railroad switching equipment * Union Syndicale Suisse, the Swiss Trade Union Confederation * United Seamen's Service, a non-profit, federally chartered organization founded in 1942 * United State of Saurashtra, a separate, western State within the Union of India from 1948 until 1956 * United States Senate, the upper chamber of the United States Congress * U.S. Steel Corporation * USA Swimming, formerly United States Swimming, the national governing body for competitive swimming in the US * Universities Superannuation Scheme, a pension scheme in the United Kingdom * United Peasant Party (''Ujedinjena seljačka stranka''), a political party in Serbia Computing * Unformatted System Services, the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Task & Purpose
''Task & Purpose'' is an American online publication founded in 2014 which covers the United States Armed Forces and the defense industry. They serve millions of readers monthly. History ''Task & Purpose'' was founded in 2014 by Zachary Iscol, Brian Jones, and Lauren Katzenberg. The company grew out of the job board HirePurpose and its content originally had a focus on helping soldiers transition back to civilian life. In 2018 managing editor Adam Weinstein resigned after CEO Zachary Iscol requested that he change the title of a ProPublica investigation into undue influence over the Department of Veterans Affairs featured on the site. Weinstein contended that Iscol strongly disagreed with both the title and the factual accuracy of the reporting done by ProPublica which Weinstein felt was undue influence on the publication's editorial independence. Weinstein also said that this was not the first time that management, specifically Iscol, had interfered in the editorial process ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Attack Submarines
An attack submarine or hunter-killer submarine is a submarine specifically designed for the purpose of attacking and sinking other submarines, surface combatants, and merchant vessels. In the Soviet Navy, Soviet and Russian Navy, Russian navies they were and are called "multi-purpose submarines". They are also used to protect friendly surface combatants and Ballistic missile submarine, missile submarines. Some attack subs are also armed with submarine-launched cruise missile, cruise missiles, increasing the scope of their potential missions to include land targets. Attack submarines may be either nuclear marine propulsion, nuclear-powered or diesel–electric ("conventionally") powered. In the United States Navy hull classification symbol, naming system, and in the equivalent NATO system (STANAG 1166), nuclear-powered attack submarines are known as SSN (hull classification symbol), SSNs and their anti-submarine warfare, anti-submarine (ASW) diesel–electric predecessors are SSK ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intercontinental Ballistic Missile
An intercontinental ballistic missile (ICBM) is a ballistic missile with a range (aeronautics), range greater than , primarily designed for nuclear weapons delivery (delivering one or more Thermonuclear weapon, thermonuclear warheads). Conventional weapon, Conventional, Chemical weapon, chemical, and Biological agent, biological weapons can also be delivered with varying effectiveness, but have never been deployed on ICBMs. Most modern designs support multiple independently targetable reentry vehicle (MIRVs), allowing a single missile to carry several warheads, each of which can strike a different target. The Nuclear weapons of the United States, United States, Russia and weapons of mass destruction, Russia, China and weapons of mass destruction, China, France and weapons of mass destruction, France, India and weapons of mass destruction, India, the United Kingdom and weapons of mass destruction, United Kingdom, Nuclear weapons and Israel, Israel, and North Korea and weapons of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballistic Missiles
A ballistic missile is a type of missile that uses projectile motion to deliver warheads on a target. These weapons are powered only during relatively brief periods—most of the flight is unpowered. Short-range ballistic missiles (SRBM) typically stay within the Earth's atmosphere, while most larger missiles travel outside the atmosphere. The type of ballistic missile with the greatest range is an intercontinental ballistic missile (ICBM). The largest ICBMs are capable of full orbital flight. These missiles are in a distinct category from cruise missiles, which are aerodynamically guided in powered flight and thus restricted to the atmosphere. History One modern pioneer ballistic missile was the A-4, commonly known as the V-2, developed by Nazi Germany in the 1930s and 1940s under the direction of Wernher von Braun. The first successful launch of a V-2 was on October 3, 1942, and it began operation on September 6, 1944, against Paris, followed by an attack on London two day ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
