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Torpedo Defence
Torpedo defence includes evasive maneuvers, passive defense like torpedo belts, torpedo nets, torpedo bulges, and sonar torpedo sensors, "soft-kill" active countermeasures like sonar decoys and sonar jammers, and "hard-kill" active defenses, like anti-torpedo torpedoes similar in idea to missile defense systems. Surface Ship Torpedo Defense and Countermeasure Anti-Torpedo systems are highly experimental and the US Navy ended trials on them in 2018. Examples For countermeasures see . Hard-kill * Ultra Electronics DCL Technology Demonstrator programme * Rafael Torbuster * Atlas Elektronik SeaSpider In addition, the RBU-1000 anti-submarine rocket launcher is alleged to have anti-torpedo capability. See also *AN/SLQ-25 Nixie The AN/SLQ-25 Nixie and its variants are towed torpedo decoys used on US and allied warships. It consists of a towed decoy device (TB-14A) and a shipboard signal generator. The Nixie is capable of defeating wake-homing, acoustic-homing, and ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo Belt
The torpedo belt was part of the armoring scheme in some warships between the 1920s and 1940s. It consisted of a series of lightly armored compartments, extending laterally along a narrow belt that intersected the ship's waterline. In theory this belt would absorb the explosions from torpedoes, or any naval artillery shells that struck below the waterline, and thus minimize internal damage to the ship itself. Torpedo belts are also known as Side Protection Systems or SPS, or Torpedo Defense System or TDS. Background: insufficiency of belt armor Armored warships (pre-dreadnought battleships, armored cruisers, dreadnought battleships, battlecruisers, and later light and heavy cruisers) of the early 20th century carried their main protective armor above the waterline – the " main belt" – which was intended to stop flat-trajectory gunfire from piercing the hull. Below the belt, the armor generally tapered away, to reduce overall weight. This, however, makes a ship v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo Net
Torpedo nets were a passive ship defensive device against torpedoes. They were in common use from the 1890s until the Second World War. They were superseded by the anti-torpedo bulge and torpedo belts. Origins With the introduction of the Whitehead torpedo in 1873, and the subsequent development of the torpedo boat, new means were sought to protect capital ships against underwater attacks. In 1876 the British Admiralty Torpedo Committee came up with a number of recommendations for combating torpedoes, which included "... nets of galvanised iron hung around each battleship from projecting 40 ft spars". Experiments were conducted in 1877, with becoming the first operational ship to be fitted with the nets. Design and use Torpedo nets could be hung out from the defending ship, when moored or otherwise stationary in the water, on multiple horizontal booms. Each boom was fixed to the ship at one end at or below the edge of the main deck, by a steel pin that permitted the boom to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo Bulge
The anti-torpedo bulge (also known as an anti-torpedo blister) is a form of defence against naval torpedoes occasionally employed in warship construction in the period between the First and Second World Wars. It involved fitting (or retrofitting) partially water-filled compartmentalized sponsons on either side of a ship's hull, intended to detonate torpedoes, absorb their explosions, and contain flooding to damaged areas within the bulges. Application Essentially, the bulge is a compartmentalized, below the waterline sponson isolated from the ship's internal volume. It is part air-filled, and part free-flooding. In theory, a torpedo strike will rupture and flood the bulge's outer air-filled component while the inner water-filled part dissipates the shock and absorbs explosive fragments, leaving the ship's main hull structurally intact. Transverse bulkheads within the bulge limit flooding to the damaged area of the structure. The bulge was developed by the British Director of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonar Decoy
A sonar decoy is a device for decoying sonar. One may be released from a submarine or a surface vessel. A decoy acts as false targets for human operators and/or sonar-homing weapons such as acoustic torpedoes. Many count as a type of torpedo defence. Submarine decoys The first submarine decoys were the German Bold (decoy), Bold fitted to U-boats of World War II. These were a pellet of calcium hydride in a simple metal container. On contact with sea water, the calcium hydride decomposed to produce a trail of hydrogen gas bubbles that acted as a bubble curtain and reflected ASDIC impulses to produce a false target. The container trapped hydrogen and floated, with a crude spring valve to maintain buoyancy to keep it at a constant depth. Later decoys, such as Sieglinde (decoy), Sieglinde, were motorised and could deploy their false target away from the host submarine, increasing safety. Surface ship decoys Decoys were also used by surface ships to decoy the developing acoustic to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missile Defense
Missile defense is a system, weapon, or technology involved in the detection, tracking, interception, and also the destruction of attacking missiles. Conceived as a defense against nuclear weapon, nuclear-armed intercontinental ballistic missiles (ICBMs), its application has broadened to include shorter-ranged non-nuclear Tactical ballistic missile, tactical and Theater ballistic missile, theater missiles. missile defense systems by country#China, China, France, missile defense systems by country#India, India, Iran, missile defense systems by country#Israel, Israel, Italy, missile defense systems by country#Russia, Russia, missile defense systems by country#Taiwan, Taiwan, the United Kingdom and the missile defense systems by country#United States, United States have all developed such air defense systems. Missile defense categories Missile defense can be divided into categories based on various characteristics: type/range of missile intercepted, the trajectory phase wher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defense News
''Defense News'' is a website and newspaper about the politics, business, and technology of national security published by Sightline Media Group. Founded in 1986, ''Defense News'' says it serves an audience of senior military, government, and industry decision-makers throughout the world. History ''Defense News'' was founded as a weekly newspaper by Army Times Publishing Company. ATPCO was sold in 1997 to Gannett Company (later renamed TEGNA), which sold it to Los Angeles–based private equity firm Regent in 2016, which renamed it Sightline Media Group. Television ''Defense News'' has a weekly television show about international defense and military issues. It first aired March 2, 2008, as ''This Week in Defense News with Vago Muradian'' on WUSA 9, a Washington, D.C., CBS affiliate. It later aired on ABC 7 WJLA and the Armed Forces Network The American Forces Network (AFN) is a government television and radio broadcast service the United States Armed Forces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DCL Technology Demonstrator Programme
The US DCL (Detection Classification and Localisation) demonstrator program is aimed at proving that an active torpedo detection system is able to resolve a salvo of torpedoes with sufficient time and accuracy that an anti-torpedo torpedo may be fired back to hit and destroy the threat. Overview The DCL systems consist of an active source emitter which sends high-frequency pings into the water. Reflections from in-water objects are received by a towed array tuned to those frequencies. By processing the reflections it is possible to determine whether objects are torpedoes, or non-threat objects. The system is also combined with a passive acoustic towed array specifically designed for torpedo detection. The passive acoustic array is able to analyse the structured sound emanating from a torpedo and thereby classify the weapon type and mode of operation. Two teams were building alternative DCL demonstration systems, the first to test was Ultra Electronics Ultra Electronics Holdin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RBU-1000
The RBU-1000 Smerch-3 is a 300 mm caliber Russian anti-submarine rocket launcher with anti-submarine and anti-torpedo capabilities. It entered service around 1962–1963. It is similar in operation to the Hedgehog system used during Second World War. The RBU-1000 is remotely aimed by the Burya fire control system, which is also used by the RBU-6000 system. It is crewed by three men: two in the magazine room and one in the control center. The launcher consists of six barrels which are automatically loaded one at a time from a below deck magazine that holds either 60 or 48 rounds per launcher. The system's reaction time is around two minutes between initial target detection and the first salvo reaching the target, though this can be reduced to under one minute if some target data is pre-entered (for example depth and speed). A salvo consists of 1, 2, 4 or 6 RGB-10 rockets, with a gap of around a second between successive rockets. Reloading takes less than three minutes. The roc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-submarine Rocket
An anti-submarine rocket is an anti-submarine weapon type deployed on surface warships for the purpose of sinking or damaging submarines by small explosive charges. They are similar to anti-submarine mortar but a comparably more modern system. This type of weapon used rockets instead of Mortar (weapon)#Spigot mortar, spigot mortars to deliver the explosive. History From World War I submarines posed a major threat to surface ships. Which necessitated the development of effective anti-submarine weapons. During World War II, The US developed first anti-submarine rocket Mousetrap (weapon), Mousetrap to replace Hedgehog (weapon), Hedgehog anti-submarine mortar. Both had the common characteristic of throwing multiple depth charges ahead of the attacking vessel, while it was still in sonar contact. After World War II several other countries developed anti-submarine rocket. U.S. developed another system named RUR-4 Weapon Alpha. Norway developed Terne ASW, Terne. The Bofors 375 mm anti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AN/SLQ-25 Nixie
The AN/SLQ-25 Nixie and its variants are towed torpedo decoys used on US and allied warships. It consists of a towed decoy device (TB-14A) and a shipboard signal generator. The Nixie is capable of defeating wake-homing, acoustic-homing, and wire-guided torpedoes. The decoy emits signals to draw a torpedo away from its intended target. The Nixie attempts to defeat a torpedo's passive sonar by emitting simulated ship noise—such as propeller and engine noise—or defeat a torpedo's active sonar by amplifying and returning its pings. Typically, larger ships may have two Nixie systems mounted at the stern of the ship to allow operation singularly or in pairs while smaller ships may have only one system. In accordance with the Joint Electronics Type Designation System (JETDS), the "''AN/SLQ-25''" designation represents the 25th design of an Army-Navy electronic device for waterborne countermeasures special equipment. The JETDS system also now is used to name all Department of D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedoes
A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, such a device was called an automotive, automobile, locomotive, or fish torpedo; colloquially, a ''fish''. The term ''torpedo'' originally applied to a variety of devices, most of which would today be called Naval mine, mines. From about 1900, ''torpedo'' has been used strictly to designate a self-propelled underwater explosive device. While the 19th-century battleship had evolved primarily with a view to engagements between armored warships with naval artillery, large-caliber guns, the invention and refinement of torpedoes from the 1860s onwards allowed small torpedo boats and other lighter surface combatant, surface vessels, submarines/submersibles, even improvised fishing boats or frogmen, and later light aircraft, to destroy large ships wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
