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Albany-class Cruiser
The ''Albany''-class guided-missile cruisers were converted and heavy cruisers of the United States Navy. All original superstructure and weapons were removed and replaced under project SCB 172. The converted ships had new very high superstructures and relied heavily on aluminum to save weight. Class description The conversion was extensive, stripping the ships down to their hulls, removing all armament and the ship's superstructure. , an , was converted at Boston Naval Shipyard starting in January 1959 and recommissioned as CG-10 on November 3, 1962. , a , was converted at San Francisco Naval Shipyard starting in July 1959 and was recommissioned as CG-11 on May 2, 1964. was originally slated to be CG-12, but was converted instead. ''Columbus'' was converted at Puget Sound Naval Shipyard beginning in September 1959 and recommissioning as CG-12 on December 1, 1962. and were also proposed for conversion to CG-13 and CG-14, but those plans were dropped because of the high ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navy Pier
Navy Pier is a pier on the shoreline of Lake Michigan, located in the Streeterville neighborhood of the Near North Side community area in Chicago, Illinois, United States. Navy Pier encompasses over of parks, gardens, shops, restaurants, family attractions and exhibition facilities and is one of the top destinations in the Midwestern United States, drawing over nine million visitors annually. It is one of the most visited attractions in the entire Midwest and is Chicago's second-most visited tourist attraction. History Military usage Navy Pier opened to the public on July 15, 1916. Originally known as the "Municipal Pier", the pier was built by Charles Sumner Frost, a nationally known architect, with a design based on the 1909 Plan of Chicago by Daniel Burnham and Edward H. Bennett Its original purpose was to serve as a dock for freights, passenger traffic, and indoor and outdoor recreation; events like expositions and pageants were held there. In mid-1918, the pier was al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of its active battle fleet alone exceeding the next 13 navies combined, including 11 allies or partner nations of the United States as of 2015. It has the highest combined battle fleet tonnage (4,635,628 tonnes as of 2019) and the world's largest aircraft carrier fleet, with eleven in service, two new carriers under construction, and five other carriers planned. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the United States Navy is the third largest of the United States military service branches in terms of personnel. It has 290 deployable combat vessels and more than 2,623 operational aircraft . The United States Navy traces its origins to the Continental Navy, which was established during the American Revo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mk 46 Torpedo
The Mark 46 torpedo is the backbone of the United States Navy's lightweight anti-submarine warfare torpedo inventory and is the NATO standard. These aerial torpedoes are designed to attack high-performance submarines. In 1989, an improvement program for the Mod 5 to the Mod 5A and Mod 5A(S) increased its shallow-water performance. The Mark 46 was initially developed as Research Torpedo Concept I (RETORC I), one of several weapons recommended for implementation by Project Nobska, a 1956 summer study on submarine warfare. Design details ;Mark 46, Mod 5 * Primary Function: Air and ship-launched lightweight torpedoThomas, Vincent C. ''The Almanac of Seapower 1987'' Navy League of the United States (1987) pp.190-191 * Contractor: Alliant Techsystems * Power Plant: Two-speed, reciprocating external combustion; Mono-propellant ( Otto fuel II) * Length: tube launch configuration (from ship),Polmar, Norman "The Ships and Aircraft of the U.S. Fleet: Torpedoes" ''United States Naval ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo Tube
A torpedo tube is a cylindrical device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed aboard surface vessels. Deck-mounted torpedo launchers are usually designed for a specific type of torpedo, while submarine torpedo tubes are general-purpose launchers, and are often also capable of deploying naval mine, mines and cruise missiles. Most modern launchers are standardized on a diameter for light torpedoes (deck mounted aboard ship) or a diameter for heavy torpedoes (underwater tubes), although other sizes of torpedo tube have been used: see Torpedo#Classes and diameters, Torpedo classes and diameters. Submarine torpedo tube A submarine torpedo tube is a more complex mechanism than a torpedo tube on a surface ship, because the tube has to accomplish the function of moving the torpedo from the normal atmospheric pressure within t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-submarine Warfare
Anti-submarine warfare (ASW, or in older form A/S) is a branch of underwater warfare that uses surface warships, aircraft, submarines, or other platforms, to find, track, and deter, damage, or destroy enemy submarines. Such operations are typically carried out to protect friendly shipping and coastal facilities from submarine attacks and to overcome blockades. Successful ASW operations typically involved a combination of sensor and weapon technologies, along with effective deployment strategies and sufficiently trained personnel. Typically, sophisticated sonar equipment is used for first detecting, then classifying, locating, and tracking a target submarine. Sensors are therefore a key element of ASW. Common weapons for attacking submarines include torpedoes and naval mines, which can both be launched from an array of air, surface, and underwater platforms. ASW capabilities are often considered of significant strategic importance, particularly following provocative instan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polaris Missile
The UGM-27 Polaris missile was a two-stage solid-fueled nuclear-armed submarine-launched ballistic missile (SLBM). As the United States Navy's first SLBM, it served from 1961 to 1980. In the mid-1950s the Navy was involved in the Jupiter missile project with the U.S. Army, and had influenced the design by making it squat so it would fit in submarines. However, they had concerns about the use of liquid fuel rockets on board ships, and some consideration was given to a solid fuel version, Jupiter S. In 1956, during an anti-submarine study known as Project Nobska, Edward Teller suggested that very small hydrogen bomb warheads were possible. A crash program to develop a missile suitable for carrying such warheads began as Polaris, launching its first shot less than four years later, in February 1960. As the Polaris missile was fired underwater from a moving platform, it was essentially invulnerable to counterattack. This led the Navy to suggest, starting around 1959, that they be g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface-to-air Missile
A surface-to-air missile (SAM), also known as a ground-to-air missile (GTAM) or surface-to-air guided weapon (SAGW), is a missile designed to be launched from the ground to destroy aircraft or other missiles. It is one type of anti-aircraft system; in modern armed forces, missiles have replaced most other forms of dedicated anti-aircraft weapons, with anti-aircraft guns pushed into specialized roles. The first attempt at SAM development took place during World War II, but no operational systems were introduced. Further development in the 1940s and 1950s led to operational systems being introduced by most major forces during the second half of the 1950s. Smaller systems, suitable for close-range work, evolved through the 1960s and 1970s, to modern systems that are man-portable. Shipborne systems followed the evolution of land-based models, starting with long-range weapons and steadily evolving toward smaller designs to provide a layered defence. This evolution of design increasin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puget Sound Naval Shipyard
Puget Sound Naval Shipyard, officially Puget Sound Naval Shipyard and Intermediate Maintenance Facility (PSNS & IMF), is a United States Navy shipyard covering 179 acres (0.7 km2) on Puget Sound at Bremerton, Washington in uninterrupted use since its establishment in 1891; it has also been known as Navy Yard Puget Sound, Bremerton Navy Yard, and the Bremerton Naval Complex. It is bordered on the south by Sinclair Inlet, on the west by the Bremerton Annex of Naval Base Kitsap, and on the north and east by the city of Bremerton, Washington. It is the Pacific Northwest's largest naval shore facility and one of Washington state's largest industrial installations. PSNS & IMF provides the Navy with maintenance, modernization, and technical and logistics support, and employs 14,000 people. History Puget Sound Naval Shipyard was established in 1891 as a Naval Station and was designated Navy Yard Puget Sound in 1901. During World War I, the Navy Yard constructed ships, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco Naval Shipyard
The Hunters Point Naval Shipyard was a United States Navy shipyard in San Francisco, California, located on of waterfront at Hunters Point in the southeast corner of the city. Originally, Hunters Point was a commercial shipyard established in 1870, consisting of two graving docks. It was purchased and built up in the late 19th and early 20th century by the Union Iron Works company, later owned by the Bethlehem Shipbuilding Company and named Hunters Point Drydocks, located at Potrero Point. Known as "The World's Greatest Shipping Yard", President Theodore Roosevelt trusted his Great White Fleet of battleships to be serviced at Hunters Point in 1907 according to historical records. The shipyard was purchased by the Navy in 1940, a year before the attack on Pearl Harbor. It began operations the next year as the San Francisco Naval Shipyard, and operated until 1974 when it was deactivated and renamed Hunters Point Naval Shipyard. Used commercially for a time, in 1986 it was taken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Commissioning
Ship commissioning is the act or ceremony of placing a ship in active service and may be regarded as a particular application of the general concepts and practices of project commissioning. The term is most commonly applied to placing a warship in active duty with its country's military forces. The ceremonies involved are often rooted in centuries-old naval tradition. Ship naming and launching endow a ship hull with her identity, but many milestones remain before she is completed and considered ready to be designated a commissioned ship. The engineering plant, weapon and electronic systems, galley, and other equipment required to transform the new hull into an operating and habitable warship are installed and tested. The prospective commanding officer, ship's officers, the petty officers, and seamen who will form the crew report for training and familiarization with their new ship. Before commissioning, the new ship undergoes sea trials to identify any deficiencies needing corre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boston Naval Shipyard
The Boston Navy Yard, originally called the Charlestown Navy Yard and later Boston Naval Shipyard, was one of the oldest shipbuilding facilities in the United States Navy. It was established in 1801 as part of the recent establishment of the new U.S. Department of the Navy in 1798. After 175 years of military service, it was decommissioned as a naval installation on 1 July 1974. The property is administered by the National Park Service, becoming part of Boston National Historical Park. Enough of the yard remains in operation to support the moored USS ''Constitution'' ("Old Ironsides") of 1797, built as one of the original six heavy frigates for the revived American navy, and the oldest warship still commissioned in the United States Navy and afloat in the world. , a 1943 World War II-era ''Fletcher''-class destroyer serving as a museum ship, is also berthed here. The museum area includes a dock which is a stop on the MBTA Boat water transport system. Among local peop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comparison Of USS Chicago As Heavy Cruiser CA-136 In 1945 And As Guided Missile Cruiser CG-11 In 1976
Comparison or comparing is the act of evaluating two or more things by determining the relevant, comparable characteristics of each thing, and then determining which characteristics of each are similar to the other, which are different, and to what degree. Where characteristics are different, the differences may then be evaluated to determine which thing is best suited for a particular purpose. The description of similarities and differences found between the two things is also called a comparison. Comparison can take many distinct forms, varying by field: To compare things, they must have characteristics that are similar enough in relevant ways to merit comparison. If two things are too different to compare in a useful way, an attempt to compare them is colloquially referred to in English as "comparing apples and oranges." Comparison is widely used in society, in science and in the arts. General usage Comparison is a natural activity, which even animals engage in when dec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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