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DD-21
SC-21 (Surface Combatant for the 21st century) was a research and development program started in 1994 intended to design land attack ships for the United States Navy. A wide variety of designs were created and extensively examined, including an arsenal ship with 500 cruise missiles. Eventually a "tumblehome" design of around 16,000 tons with two long-range guns and 128 missile tubes was selected as the DD-21, the Destroyer for the 21st century. The program ended in November 2001. Background The origins of SC-21 lie in the realization by Admiral Joseph Metcalf III that new technologies such as vertical launch missiles permitted a complete rethink of warship design. He established a steering group, Group Mike, to study the possibilities. Group Mike sponsored two studies in 1987: the Ship Operational Characteristics Study (SOCS) and the Surface Combatant Force Requirement Study (SCFRS). Respectively, these studies sought to identify the operational characteristics required of an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zumwalt-class (DDG-1000) Artist's Conception
The ''Zumwalt''-class destroyer is a class of three United States Navy guided-missile destroyers designed as multi-mission stealth ships with a focus on land attack. It is a multi-role class that was designed with a primary role of naval gunfire support and secondary roles of surface warfare and anti-aircraft warfare. The class design emerged from the DD-21 "land attack destroyer" program as "DD(X)" and was intended to take the role of battleships in meeting a congressional mandate for naval fire support. The ship is designed around its two Advanced Gun Systems (AGS), turrets with 920 round magazines, and unique Long Range Land Attack Projectile (LRLAP) ammunition. LRLAP procurement was canceled, rendering the guns unusable, so the Navy re-purposed the ships for surface warfare. Starting in 2023, the Navy will remove the AGS from the ships and replace them with hypersonic missiles. These ships are classed as destroyers, but they are much larger than any other active destroyers or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CG(X)
The CG(X) program, also known as the Next Generation Cruiser program, was a United States Navy research program to develop a replacement vessel for its 22 s. Original plans were for 18–19 ships, based on the 14,500 ton with additional ballistic missile defense and area air defense for a carrier group. These vessels were to enter service beginning in 2017. The program was ended in 2010 with its mission to be fulfilled by the successor to the Flight III ''Arleigh Burke''–class destroyers. History Background In the early 1990s, the U.S. Armed Forces had to respond to new threats and budgets after the end of the Cold War. The U.S. Navy's response was the Surface Combatant for the 21st Century (SC-21) program. This envisaged a destroyer called DD-21 and a planned cruiser called CG-21. Budget cuts in November 2001 meant that SC-21 became the less ambitious Future Surface Combatant program. The DD-21 was renamed DD(X), which was later named the destroyer. By April 2002, DD( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bath Iron Works
Bath Iron Works (BIW) is a major United States shipyard located on the Kennebec River in Bath, Maine, founded in 1884 as Bath Iron Works, Limited. Since 1995, Bath Iron Works has been a subsidiary of General Dynamics. It is the fifth-largest defense contractor in the world as of 2008. BIW has built private, commercial, and military vessels, most of which have been ordered by the United States Navy. History Bath Iron Works was incorporated in 1884 by General Thomas W. Hyde, a native of Bath who served in the American Civil War. After the war, he bought a shop that made windlasses and other iron hardware for the wooden ships built in Bath's many shipyards. He expanded the business by improving its practices, entering new markets, and acquiring other local businesses. By 1882, Hyde Windlass was eyeing the new and growing business of iron shipbuilding, and it incorporated as Bath Iron Works in 1884. On February 28, 1890, BIW won its first contract for complete vessels: two iron gu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advanced Gun System
The Advanced Gun System (AGS) is a naval artillery system developed and produced by BAE Systems Armaments & Services for the ''Zumwalt''-class destroyer of the United States Navy. Designated the 155 mm/62 (6.1") Mark 51 Advanced Gun System (AGS),155 mm/62 (6.1") Mark 51 Advanced Gun System (AGS) NavWeaps.com, 26 February 2017 it was designed to provide long range against shore-based targets. A total of six of the systems were installed, two on each of the three ''Zumwalt''-class ships. The Navy has no plans for additional ''Zumwalt''-class ships, and no plans to deploy AGS on any other ship. AGS can only use ammunition designed specifica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uss Zumwalt
USS ''Zumwalt'' (DDG-1000) is a guided missile destroyer of the United States Navy. She is the lead ship of the and the first ship to be named after Admiral Elmo Zumwalt. ''Zumwalt'' has stealth capabilities, having a radar cross-section similar to a fishing boat despite her large size. On 7 December 2015, ''Zumwalt'' began her sea trial preparatory to joining the Pacific Fleet. The ship was commissioned in Baltimore on 15 October 2016. Her home port is San Diego, California. Namesake ''Zumwalt'' is named after Elmo Russell Zumwalt Jr., who was an American naval officer and the youngest man to serve as the Chief of Naval Operations. As an admiral and later the 19th Chief of Naval Operations, Zumwalt played a major role in U.S. military history, especially during the Vietnam War. A highly decorated war veteran, Zumwalt reformed the US Navy's personnel policies in an effort to improve enlisted life and ease racial tensions. After he retired from a 32-year naval career, he la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vertical Launching System
A vertical launching system (VLS) is an advanced system for holding and firing missiles on mobile naval platforms, such as surface ships and submarines. Each vertical launch system consists of a number of ''cells'', which can hold one or more missiles ready for firing. Typically, each cell can hold a number of different types of missiles, allowing the ship flexibility to load the best set for any given mission. Further, when new missiles are developed, they are typically fitted to the existing vertical launch systems of that nation, allowing existing ships to use new types of missiles without expensive rework. When the command is given, the missile flies straight up far enough to clear the cell and the ship, then turns on to the desired course. A VLS allows surface combatants to have a greater number of weapons ready for firing at any given time compared to older launching systems such as the Mark 13 single-arm and Mark 26 twin-arm launchers, which were fed from behind by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Metcalf III
Joseph Metcalf III (20 December 1927 – 2 March 2007) was a United States Navy vice admiral. He graduated from Vermont Academy in 1946 and then from the Naval Academy in 1951 and retired from active duty in 1987. Experience Vice Admiral Metcalf had extensive leadership and operational experience in both sea and shore assignments. He held sea commands in each grade, lieutenant through vice admiral. Among his early commands was the , which fired the Regulus II, the forerunner of the present-day cruise missiles. He commanded the , which made the first combat landing in Vietnam. He was in command of all the surface ships during the final evacuation of U.S. forces from Vietnam. Other sea commands were commanding officer of the , commander of Destroyer Squadron 33, commander of Naval Surface Group Mid – Pacific, commander of Destroyer Group Eight and Battle Group Two and commander of Second Fleet / commander of NATO Strike Fleet Atlantic / Commander Joint Task Force 120. He wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ticonderoga Class Cruiser
The ''Ticonderoga'' class of guided-missile cruisers is a class of warships in the United States Navy, first ordered and authorized in the 1978 fiscal year. The class uses passive phased-array radar and was originally planned as a class of destroyers. However, the increased combat capability offered by the Aegis Combat System and the AN/SPY-1 radar system, together with the capability of operating as a flagship, were used to justify the change of the classification from DDG (guided-missile destroyer) to CG (guided-missile cruiser) shortly before the keels were laid down for and . ''Ticonderoga''-class guided-missile cruisers are multi-role warships. Their Mk 41 VLS can launch Tomahawk cruise missiles to strike strategic or tactical targets, or fire long-range anti-aircraft SM-2MR/ ERs for defense against aircraft or anti-ship missiles. Their LAMPS III helicopters, RUM-139 ASROCs, and sonar systems allow them to perform anti-submarine missions. ''Ticonderoga''-class ships a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rate Of Fire
Rate of fire is the frequency at which a specific weapon can fire or launch its projectiles. This can be influenced by several factors, including operator training level, mechanical limitations, ammunition availability, and weapon condition. In modern weaponry, it is usually measured in rounds per minute (RPM or round/min) or rounds per second (RPS or round/s). There are three different measurements for the rate of fire: cyclic, sustained, and rapid. Cyclic is the maximum rate of fire given only mechanical function, not taking into account degradation of function due to heat, wear, or ammunition constraints. Sustained is the maximum efficient rate of fire given the time taken to load the weapon and keep it cool enough to operate. Finally, rapid is the maximum reasonable rate of fire in an emergency when the rate of fire need not be upheld for long periods. Overview For manually operated weapons such as bolt-action rifles or artillery pieces, the rate of fire is governed primarily ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arsenal Ship
An arsenal ship is a concept for a floating missile platform intended to have as many as five hundred vertical launch bays for mid-sized missiles, most likely cruise missiles. In current U.S. naval thinking, such a ship would initially be controlled remotely by an Aegis Cruiser, although plans include control by AWACS aircraft such as the E-2 Hawkeye and E-3 Sentry. History Proposed by the U.S. Navy in 1996, the arsenal ship had funding problems, with the United States Congress cancelling some funding, and the Defense Advanced Research Projects Agency (DARPA) providing some funding to individual contractors for prototypes. Some concept artwork of the Arsenal Ship was produced, with some images bearing the number "72", possibly hinting at an intent to classify the arsenal ships as a battleship, since the last battleship ordered (but never built) was USS ''Louisiana'' (BB-71). The arsenal ship would have a small crew and as many as 500 vertical launch tubes for missiles to p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vertical Launching System
A vertical launching system (VLS) is an advanced system for holding and firing missiles on mobile naval platforms, such as surface ships and submarines. Each vertical launch system consists of a number of ''cells'', which can hold one or more missiles ready for firing. Typically, each cell can hold a number of different types of missiles, allowing the ship flexibility to load the best set for any given mission. Further, when new missiles are developed, they are typically fitted to the existing vertical launch systems of that nation, allowing existing ships to use new types of missiles without expensive rework. When the command is given, the missile flies straight up far enough to clear the cell and the ship, then turns on to the desired course. A VLS allows surface combatants to have a greater number of weapons ready for firing at any given time compared to older launching systems such as the Mark 13 single-arm and Mark 26 twin-arm launchers, which were fed from behind by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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