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Mark 54 Lightweight Torpedo
The Mark 54 Lightweight Torpedo (formerly known as Lightweight Hybrid Torpedo, or LHT) is a standard anti-submarine warfare (ASW) torpedo used by the United States Navy. Development The Mark 54 was co-developed by Raytheon Integrated Defense Systems and the U.S. Navy under the U.S. Navy's Lightweight Hybrid Torpedo program in response to perceived problems with the extant Mark 50 and Mark 46 torpedoes. The Mk 50, having been developed to counter very high performance nuclear submarines such as the Soviet Alfa class, was seen as too expensive to use against relatively slow conventional submarines. The older Mk 46, designed for open-ocean use, performed poorly in the littoral areas, where the Navy envisioned itself likely to operate in the future. The Mk 54 was created by combining the homing portion of the Mk 50 and the warhead and propulsion sections of the Mk 46, improved for better performance in shallow water, and with the addition of commercial off-the-shelf (COTS) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Ross (DDG-71)
USS ''Ross'' (DDG-71) is an guided-missile destroyer in the United States Navy. She is the second Navy ship to be named ''Ross'', the first Navy ship named for Medal of Honor recipient Donald K. Ross and the 21st destroyer of her class. The first ''Ross'', , was named for David Ross, a captain in the Continental Navy. Construction ''Ross'' was the 10th ship of her class to be built at Ingalls Shipbuilding in Pascagoula, Mississippi. She was laid down on 10 April 1995; launched on 22 March 1996; sponsored by Mrs. Helen L. Ross, widow of the late Captain Ross; and commissioned on 28 June 1997, at Galveston, Texas, Commander Jeffrey R. Ginnow in command. Service history After commissioning, ''Ross'' set sail for a Combat Systems Ship Qualification Trial, which lasted six weeks, and then sailed back to Pascagoula for three months for her Post Shakedown Availability (PSA). She was then returned to her homeport of Portsmouth, Virginia, and completed the Basic Training Phase: Engi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark 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 torpedo An aerial torpedo (also known as an airborne torpedo or air-dropped torpedo) is a torpedo launched from a torpedo bomber aircraft into the water, after which the weapon propels itself to the target. First used in World War I, air-dropped torped ...es 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: Al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Canadian Navy
The Royal Canadian Navy (RCN; french: Marine royale canadienne, ''MRC'') is the Navy, naval force of Canada. The RCN is one of three environmental commands within the Canadian Armed Forces. As of 2021, the RCN operates 12 frigates, four attack submarines, 12 coastal defence vessels, eight patrol class training vessels, two offshore patrol vessels, and several auxiliary vessels. The RCN consists of 8,570 Regular Force and 4,111 Primary Reserve sailors, supported by 3,800 civilians. Vice-Admiral Angus Topshee is the current commander of the Royal Canadian Navy and chief of the Naval Staff. Origins of the Royal Canadian Navy, Founded in 1910 as the Naval Service of Canada (French: ''Service naval du Canada'') and given royal sanction on 29 August 1911, the RCN was amalgamated with the Royal Canadian Air Force and the Canadian Army to form the Unification of the Canadian Forces, unified Canadian Armed Forces in 1968, after which it was known as Maritime Command (French: ''Commandemen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Canadian Air Force
The Royal Canadian Air Force (RCAF; french: Aviation royale canadienne, ARC) is the air and space force of Canada. Its role is to "provide the Canadian Forces with relevant, responsive and effective airpower". The RCAF is one of three environmental commands within the unified Canadian Armed Forces. As of 2020, the Royal Canadian Air Force consists of 12,074 Regular Force and 1,969 Primary Reserve personnel, supported by 1,518 civilians, and operates 258 manned aircraft and nine unmanned aerial vehicles. Lieutenant-General Eric Kenny is the current commander of the Royal Canadian Air Force and chief of the Air Force Staff. The Royal Canadian Air Force is responsible for all aircraft operations of the Canadian Forces, enforcing the security of Canada's airspace and providing aircraft to support the missions of the Royal Canadian Navy and the Canadian Army. The RCAF is a partner with the United States Air Force in protecting continental airspace under the North American Aerospac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazilian Navy
) , colors= Blue and white , colors_label= Colors , march= "Cisne Branco" ( en, "White Swan") (same name as training ship ''Cisne Branco'' , mascot= , equipment= 1 multipurpose aircraft carrier7 submarines6 frigates2 corvettes4 amphibious warfare ships5 mine countermeasures vessel23 oceanic patrol boats 20 fast patrol craft30 oceanic auxiliary ships12 river patrol boats16 river auxiliary ships , equipment_label=Fleet , battles=War of Independence (1821–24)Confederation of the Equator (1824)Cisplatine War (1825–28) Cabanagem Revolt (1835–40)Ragamuffin War (1835–45) Balaiada Revolt (1835–41)Uruguayan Civil War (1839-51)Platine War (1851–52) Bahia incident (1864)Uruguayan War (1864–65) Paraguayan War (1864–70) Naval Revolt (1893–94) Federalist War (1893-1895)World War I (1917–18) Lieutenants Revolts (1922–27)Constitutionalist war (1932)World War II (1942–45) Lobster War (1961–63)Araguaia guerrilla (1972–74)" UN missions"Haiti (2004–2017)Lebanon (20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing P-8 Poseidon
The Boeing P-8 Poseidon is an American maritime patrol and reconnaissance aircraft developed and produced by Boeing Defense, Space & Security, and derived from the civilian Boeing 737-800. It was developed for the United States Navy (USN). The P-8 operates in the anti-submarine warfare (ASW), anti-surface warfare (ASUW), and intelligence, surveillance and reconnaissance (ISR) roles. It is armed with torpedoes, Harpoon anti-ship missiles, and other weapons, can drop and monitor sonobuoys, and can operate in conjunction with other assets, including the Northrop Grumman MQ-4C Triton maritime surveillance unmanned aerial vehicle (UAV). The P-8 is operated by the United States Navy, the Indian Navy, the Royal Australian Air Force, and the United Kingdom's Royal Air Force. It has also been ordered by the Royal Norwegian Air Force, the Royal New Zealand Air Force, the Republic of Korea Navy, and the German Navy. Development Origins The Lockheed P-3 Orion, a turboprop ASW aircraft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASROC
The RUR-5 ASROC (for "Anti-Submarine Rocket") is an all-weather, all sea-conditions anti-submarine missile system. Developed by the United States Navy in the 1950s, it was deployed in the 1960s, updated in the 1990s, and eventually installed on over 200 USN surface ships, specifically cruisers, destroyers, and frigates. The ASROC has been deployed on scores of warships of many other navies, including Canada, Germany, Italy, Japan, the Republic of China, Greece, Pakistan and others. History ASROC started development as the Rocket Assisted Torpedo (RAT) program by the Naval Ordnance Test Station at China Lake in the early 1950s to develop a surface warship ASW weapon to counter the new post-World War II submarines which ran quieter, at much higher speed and could attack from much longer range with high speed homing torpedoes. In addition, the goal was to take advantage of modern sonars with a much larger detection range. An extended range torpedo delivered by parachute from th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Director, Operational Test And Evaluation
The Director, Operational Test and Evaluation (DOT&E) is the principal staff assistant and adviser to the US Secretary of Defense on operational and live fire test and evaluation activities involving U.S. Department of Defense weapons systems. Responsibilities The director reports directly to the Secretary and Deputy Secretary of Defense, with the following responsibilities: * Development and dissemination of Department of Defense operational test and evaluation policy and procedures * Review and analysis of operational test and evaluation results for Department of Defense acquisition programs * Independent assessments of operational test and evaluation activities as it pertains to budgetary and financial issues for the Secretary of Defense, the Department of Defense, and the United States Congress * Oversight to ensure the adequacy of operational test and evaluation for major Department of Defense acquisition programs and to confirm the operational effectiveness and suitability o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PowerPC 603e
The PowerPC 600 family was the first family of PowerPC microprocessor, processors built. They were designed at the Somerset facility in Austin, Texas, jointly funded and staffed by engineers from IBM and Motorola as a part of the AIM alliance. Somerset was opened in 1992 and its goal was to make the first PowerPC processor and then keep designing general purpose PowerPC processors for personal computers. The first incarnation became the PowerPC 601 in 1993, and the second generation soon followed with the PowerPC 603, PowerPC 604 and the 64-bit PowerPC 620. Nuclear family PowerPC 601 The PowerPC 601 was the first generation of microprocessors to support the basic 32-bit PowerPC instruction set. The design effort started in earnest in mid-1991 and the first prototype chips were available in October 1992. The first 601 processors were introduced in an IBM RS/6000 workstation in October 1993 (alongside its more powerful multichip cousin IBM POWER2 line of processors) and the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark 48 Torpedo
The Mark 48 and its improved Advanced Capability (ADCAP) variant are American heavyweight submarine-launched torpedoes. They were designed to sink deep-diving nuclear-powered submarines and high-performance surface ships. History The Mark 48 was initially developed as REsearch TORpedo Concept II (RETORC II), one of several weapons recommended for implementation by Project Nobska, a 1956 summer study on submarine warfare. The Mk-48 torpedo was designed at the end of the 1960s to keep up with the advances in Soviet submarine technology. Operational since 1972, it replaced the Mk-37, Mk-14 and Mk-16 torpedoes as the principal weapon of U.S. Navy submarines. With the entry into service of the new Soviet in 1977, the decision was made to accelerate the ADCAP program, which would bring significant modifications to the torpedo. Tests were run to ensure that the weapon could keep up with the developments and the weapon was modified with improved acoustics and electronics. The new ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Roosevelt (DDG-80) Launches Mk 54 Torpedo In April 2014
Several ships of the United States Navy have borne some version of the name ''Roosevelt'' in honor of members of the Roosevelt family. * , a that saw service during World War II. * , a , launched in 1945 and struck in 1977. * , a patrol vessel in commission from 1918 to 1919, named for President Theodore Roosevelt * , an , launched in 1999 and currently in service. She was named for both President Franklin D. Roosevelt and his wife, Eleanor Roosevelt. Three of the ships have been named USS ''Theodore Roosevelt'', in honor of President Theodore Roosevelt. * , a steamer built in 1906, acquired by the Navy from the Roosevelt Steamship Company sometime in 1918 and fitted out as a troop transport. * , a ballistic missile submarine A ballistic missile submarine is a submarine capable of deploying submarine-launched ballistic missiles (SLBMs) with nuclear warheads. The United States Navy's hull classification symbols for ballistic missile submarines are SSB and SSBN – t ..., ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Littoral
The littoral zone or nearshore is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark (which is rarely inundated), to coastal areas that are permanently underwater, submerged — known as the ''foreshore'' — and the terms are often used interchangeably. However, the geographical meaning of ''littoral zone'' extends well beyond the intertidal zone to include all neritic waters within the bounds of continental shelves. Etymology The word ''littoral'' may be used both as a noun and as an adjective. It derives from the Latin language, Latin noun ''litus, litoris'', meaning "shore". (The doubled ''t'' is a late-medieval innovation, and the word is sometimes seen in the more classical-looking spelling ''litoral''.) Description The term has no single definition. What is regarded as the full extent of the littoral zone, and the way the littoral zone is divided into subregi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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