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Sonar is a technique that uses sound propagation to navigate, measure distances (ranging), communicate with or detect objects on or under the surface of the water, such as other vessels.
The Spearfish torpedo is the heavy torpedo used by the submarines of the Royal Navy. It can be guided by wire or by autonomous active or passive sonar, and provides both anti-submarine warfare (ASW) and anti-surface warfare (ASuW) capability. Spearfish development began in the 1970s, with production starting in 1988, and deployment in 1992. By 2004, the new weapon had completely replaced the older Tigerfish torpedo.
Raytheon Missiles & Defense (RMD) was one of four business segments of RTX Corporation. Headquartered in Tucson, Arizona, its president was Wes Kremer. The business produced a broad portfolio of advanced technologies, including air and missile defense systems, precision weapons, radars, and command and control systems. Raytheon Intelligence & Space was merged with Raytheon Missiles & Defense in July 2023 to form the Raytheon business segment.
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.
Type 53 is the common name for a family of 53 cm torpedoes manufactured in Russia, starting with the 53-27 torpedo and continuing to the modern UGST (Fizik-1), which is being replaced by the Futlyar.
An electronic countermeasure (ECM) is an electrical or electronic device designed to trick or deceive radar, sonar, or other detection systems, like infrared (IR) or lasers. It may be used both offensively and defensively to deny targeting information to an enemy. The system may make many separate targets appear to the enemy, or make the real target appear to disappear or move about randomly. It is used effectively to protect aircraft from guided missiles. Most air forces use ECM to protect their aircraft from attack. It has also been deployed by military ships and recently on some advanced tanks to fool laser/IR guided missiles. It is frequently coupled with stealth advances so that the ECM systems have an easier job. Offensive ECM often takes the form of jamming. Self-protecting (defensive) ECM includes using blip enhancement and jamming of missile terminal homers.
The Delhi-class destroyers, also known Project 15 are a class guided-missile destroyers of the Indian Navy. Three ships of this class are in active service. The Delhi-class vessels were the largest vessels to be built in India at the time of their commissioning. The ships were built by Mazagon Dock Limited (MDL) at a cost of ₹750 crore each.
An anti-submarine weapon (ASW) is any one of a number of devices that are intended to act against a submarine and its crew, to destroy (sink) the vessel or reduce its capability as a weapon of war. In its simplest sense, an anti-submarine weapon is usually a projectile, missile or bomb that is optimized to destroy submarines.
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.
Nulka is an Australian-designed and -developed active missile decoy built by an American/Australian collaboration. Used aboard warships of the United States Navy, Royal Australian Navy, United States Coast Guard and Royal Canadian Navy, Nulka is a rocket-propelled, disposable, offboard, active decoy designed to lure anti-ship missiles away from their targets. It has a unique design in that it hovers in mid-air while drawing the incoming anti-ship missile. The hovering rocket concept was initiated in Australia by the Defence Science and Technology Group (DSTG), and the system was designed, developed and then manufactured by AWA Defence Industries). BAE refers to Nulka as a "soft-kill defence system". The word "Nulka" is of Australian Aboriginal origin and means "be quick".
The Brahmaputra-class frigates are guided-missile frigates of the Indian Navy, designed and built in India. They are an enhancement of the Godavari class, with a displacement of 3850 tons and a length of 126 metres (413 ft). Although of similar hull and dimension, internally, the Brahmaputra and Godavari classes have different configurations, armaments and capabilities. 3 ships of this class serve in the Indian Navy.
An acoustic torpedo is a torpedo that aims itself by listening for characteristic sounds of its target or by searching for it using sonar. Acoustic torpedoes are usually designed for medium-range use, and often fired from a submarine.
Foxer was the code name for a British-built acoustic decoy used to confuse German acoustic homing torpedoes like the G7 torpedo during the Second World War. A US version codenamed FXR was deployed at the end of September 1943 on all transatlantic escort vessels. A Canadian version was also built called the CAAT device. It was later replaced in US service by the Fanfare noisemaker.
Anti-submarine warfare 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.
The United Kingdom Surface Ship Torpedo Defence (SSTD) system entered into service with the Royal Navy in 2004. The system is produced by Ultra Electronics and is known as S2170 or Sonar 2170 by the Royal Navy and as Sea Sentor in the export market.
Sonar technician is a United States Navy occupational rating.
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.
Wake homing is a torpedo guidance technique based on the wake trajectory left behind a moving target.
Naval Decoy IDS300 is a passive, off-board, octahedral, corner reflector decoy of the Royal Navy's Type 45 destroyer and the US Navy's Arleigh Burke-class destroyer, forming part of a layered defence to counter anti-ship missiles. Unlike chaff, the decoy is persistent and will float for up to three hours in sea state 4.
Giovanni delle Bande Nere (P434) is the fourth ship of the Thaon di Revel-class offshore patrol vessels built for the Italian Navy.
References
- ↑ Sprenger, Sebastian (16 April 2019). "Navies, companies push for torpedo-killing torpedoes". Defense News . Retrieved 17 April 2019.
- ↑ Director, Operational Test and EvaluationFY 2018 Annual Report (PDF). Department of Defense. p. 163. Retrieved 22 April 2019.
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