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SCANFAR
The Hughes SCANFAR was the first phased array radar system to be deployed by the US Navy, installed on the USS ''Long Beach'' (CGN-9) and USS ''Enterprise'' (CVN-65). It consisted of two search radars, the AN/SPS-32 and the AN/SPS-33. In 1982, the system was removed from ''Long Beach'', and was replaced by the AN/SPS-48 during a comprehensive overhaul. Aboard the ''Long Beach'', the system used AN/SPG-55 radars for missile guidance. Despite its failure to enter widespread service, the lessons learned were applied to the follow-on Aegis Combat System and the associated AN/SPY-1 passive electronically scanned array (PESA) radar. History Prior to the development of SCANFAR, the Navy had been developing an advanced anti-aircraft weapon system combining an extremely advanced radar system, the AN/SPG-59, with a new long-range missile known as the RIM-50 Typhon. The radar was an active electronically scanned array that acted both as a long-range surveillance system as well as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Enterprise (CVN-65)
USS ''Enterprise'' (CVN-65), formerly CVA(N)-65, is a decommissioned United States Navy aircraft carrier. She was the first nuclear-powered aircraft carrier and the eighth United States naval vessel to bear the name. Like her predecessor of World War II fame, she is nicknamed "Big E". At , she is the longest naval vessel ever built. ''Enterprise'' is the only ship of a class that was originally planned to have five other ships. Her displacement ranks her class as the third-heaviest carrier class, after the and the ''Gerald R. Ford'' class. ''Enterprise'' had a crew of some 4,600 service members. ''Enterprise'' was, at the time of inactivation, the third-oldest commissioned vessel in the United States Navy after the wooden-hulled and . She was inactivated on 1 December 2012, and officially decommissioned on 3 February 2017, after over 55 years of service. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Long Beach (CGN-9)
USS ''Long Beach'' (CLGN-160/CGN-160/CGN-9) was a nuclear-powered guided missile cruiser in the United States Navy and the world's first nuclear-powered surface combatant. She was the third Navy ship named after the city of Long Beach, California. She was the sole member of the ''Long Beach''-class, and the last cruiser built for the United States Navy to a cruiser design; all subsequent cruiser classes were built on scaled-up destroyer hulls (and originally classified as destroyer leaders) or, in the case of the ''Albany''-class, converted from already existing cruisers. ''Long Beach'' was laid down 2 December 1957, launched 14 July 1959 and commissioned 9 September 1961 under the command of then-Captain Eugene Parks Wilkinson, who previously served as the first commanding officer of the world's first nuclear-powered vessel, the submarine . She deployed to Vietnam during the Vietnam War and served numerous times in the Western Pacific, Indian Ocean and Persian Gulf. By the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RIM-50 Typhon
Typhon was a missile system developed by the United States Navy in the late 1950s, intended to serve as an integrated air-defense system for Navy fleets. Consisting of the SAM-N-8 Typhon LR, later designated RIM-50A, and the SAM-N-9 Typhon MR, later RIM-55A, paired with the AN/SPG-59 radar system, the cost and expense of the Typhon system led to it being cancelled in favor of the Standard Missile program. Design and development Development of Typhon was initiated in the late 1950s, as the existing Talos, Terrier, and Tartar ("3T") long-, medium-, and short-ranged missiles were considered to be approaching obsolescence; in the event of a mass attack by Soviet bomber forces, the requirement for each missile to have its own dedicated target illuminator would lead to rapid saturation of the defensive system. The Typhon system, developed under a contract awarded to the Bendix Corporation, would overcome this through the use of the AN/SPG-59 electronically scanned array radar syste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Radars
A navy, naval force, or maritime force is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operations and related functions. It includes anything conducted by surface ships, amphibious ships, submarines, and seaborne aviation, as well as ancillary support, communications, training, and other fields. The strategic offensive role of a navy is projection of force into areas beyond a country's shores (for example, to protect sea-lanes, deter or confront piracy, ferry troops, or attack other navies, ports, or shore installations). The strategic defensive purpose of a navy is to frustrate seaborne projection-of-force by enemies. The strategic task of the navy also may incorporate nuclear deterrence by use of submarine-launched ballistic missiles. Naval operations can be broadly divided between riverine and littoral applications (brown-water navy), open-ocean applications (blue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federation Of American Scientists
The Federation of American Scientists (FAS) is an American nonprofit global policy think tank with the stated intent of using science and scientific analysis to attempt to make the world more secure. FAS was founded in 1946 by scientists who worked on the Manhattan Project to develop the first atomic bombs. The Federation of American Scientists aims to reduce the amount of nuclear weapons that are in use, and prevent nuclear and radiological terrorism. They hope to present high standards for nuclear energy's safety and security, illuminate government secrecy practices, as well as track and eliminate the global illicit trade of conventional, nuclear, biological and chemical weapons. With 100 sponsors, the Federation of American Scientists says that it promotes a safer and more secure world by developing and advancing solutions to important science and technology security policy problems by educating the public and policy makers, and promoting transparency through research and ana ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S Band
The S band is a designation by the Institute of Electrical and Electronics Engineers (IEEE) for a part of the microwave band of the electromagnetic spectrum covering frequencies from 2 to 4 gigahertz (GHz). Thus it crosses the conventional boundary between the UHF and SHF bands at 3.0 GHz. The S band is used by airport surveillance radar for air traffic control, weather radar, surface ship radar, and some communications satellites, especially those used by NASA to communicate with the Space Shuttle and the International Space Station. The 10 cm radar short-band ranges roughly from 1.55 to 5.2 GHz. The S band also contains the 2.4–2.483 GHz ISM band, widely used for low power unlicensed microwave devices such as cordless phones, wireless headphones (Bluetooth), wireless networking (WiFi), garage door openers, keyless vehicle locks, baby monitors as well as for medical diathermy machines and microwave ovens (typically at 2.495 GHz). India's re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superstructure
A superstructure is an upward extension of an existing structure above a baseline. This term is applied to various kinds of physical structures such as buildings, bridges, or ships. Aboard ships and large boats On water craft, the superstructure consists of the parts of the ship or a boat, including sailboats, fishing boats, passenger ships, and submarines, that project above her main deck. This does not usually include its masts or any armament turrets. Note that in modern times, turrets do not always carry naval artillery, but they can also carry missile launchers and/or antisubmarine warfare weapons. The size of a watercraft's superstructure can have many implications in the performance of ships and boats, since these structures can alter their structural rigidity, their displacements, and/or stability. These can be detrimental to any vessel's performance if they are taken into consideration incorrectly. The height and the weight of superstructure on board a ship or a bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vacuum Tube
A vacuum tube, electron tube, valve (British usage), or tube (North America), is a device that controls electric current flow in a high vacuum between electrodes to which an electric voltage, potential difference has been applied. The type known as a thermionic tube or thermionic valve utilizes thermionic emission of electrons from a hot cathode for fundamental electronic functions such as signal amplifier, amplification and current rectifier, rectification. Non-thermionic types such as a vacuum phototube, however, achieve electron emission through the photoelectric effect, and are used for such purposes as the detection of light intensities. In both types, the electrons are accelerated from the cathode to the anode by the electric field in the tube. The simplest vacuum tube, the diode (i.e. Fleming valve), invented in 1904 by John Ambrose Fleming, contains only a heated electron-emitting cathode and an anode. Electrons can only flow in one direction through the device—fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RIM-24 Tartar
The General Dynamics RIM-24 Tartar was a medium-range naval surface-to-air missile (SAM), and was among the earliest surface-to-air missiles to equip United States Navy ships. The Tartar was the third of the so-called "3 T's", the three primary SAMs the Navy fielded in the 1960s and 1970s, the others being the RIM-2 Terrier and RIM-8 Talos. History The Tartar was born of a need for a more lightweight system for smaller ships, and something that could engage targets at very close range. Essentially, the Tartar was simply a RIM-2C Terrier without the secondary booster. The Tartar was never given a SAM-N-x designation, and was simply referred to as Missile Mk 15 until the unified Army-Navy designation system was introduced in 1963. The Tartar was used on a number of ships, of a variety of sizes. Initially the Mk 11 twin-arm launcher was used, later ships used the Mk 13 and Mk 22 single-arm launchers. Early versions proved to be unreliable. The Improved Tartar retrofit program ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RIM-8 Talos
Bendix RIM-8 Talos was a long-range naval surface-to-air missile, and was among the earliest surface-to-air missiles to equip United States Navy ships. The Talos used radar beam riding for guidance to the vicinity of its target, and semiactive radar homing (SARH) for terminal guidance. The array of four antennas which surround the nose are SARH receivers which functioned as a continuous wave interferometer. Initial thrust was provided by a solid rocket booster for launch and a Bendix ramjet for flight to the target with the warhead serving as the ramjet's compressor. History Talos was the end product of Operation Bumblebee, the Navy's 16-year surface-to-air missile development program for protection against guided anti-ship missiles like Henschel Hs 293 glide bombs, Fritz X, and kamikaze aircraft. The Talos was the primary effort behind the Bumblebee project, but was not the first missile the program developed; the RIM-2 Terrier was the first to enter service. The Talos was or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Electronically Scanned Array
An active electronically scanned array (AESA) is a type of phased array antenna, which is a computer-controlled array antenna in which the beam of radio waves can be electronically steered to point in different directions without moving the antenna. In the AESA, each antenna element is connected to a small solid-state transmit/receive module (TRM) under the control of a computer, which performs the functions of a transmitter and/or receiver for the antenna. This contrasts with a passive electronically scanned array (PESA), in which all the antenna elements are connected to a single transmitter and/or receiver through phase shifters under the control of the computer. AESA's main use is in radar, and these are known as active phased array radar (APAR). The AESA is a more advanced, sophisticated, second-generation of the original PESA phased array technology. PESAs can only emit a single beam of radio waves at a single frequency at a time. The PESA must utilize a Butler matrix ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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