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CAPTAS-4
The CAPTAS-4 is a towed array sonar developed by Thales Underwater Systems to equip first-rank surface combatants. Manufactured in Brest, France, it represents the high-end and most powerful system of the company's ''CAPTAS'' (Combined Active and Passive Towed Array Sonar) line of products and equips several first-rank warships of the French Navy as well as those of various export customers. A British variant, known as Sonar 2087, equips anti-submarine warfare frigates of the Royal Navy. Description The CAPTAS-4 system comprises a UMS-4249 ultra-low-frequency active sonar with four ceramic rings, integrated into a towed variable-immersion body. Capable of diving up to , it covers a very large volume of water over an extremely long range. In addition to the UMS-4249 variable depth sonar, a towed multi-functional linear antenna equipped with hydrophones is used to capture radiated noise and reflected signals: it picks up the feedback of Very Low Frequency (VLF) emissions from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defence And Intervention Frigate
The Frégate de Défense et d'Intervention () or FDI, formerly denominated Frégate de Taille Intermédiaire () or FTI, is a programme launched in 2015 to produce a new class of first-rank French frigates to complement the . , five ships have been ordered for the French Navy and will form the ''Amiral Ronarc'h'' class, with the lead ship expected to be commissioned in 2025. In 2021, three units were ordered by Greece for the Hellenic Navy and will form the . , the lead ship of the class, was laid down on 17 December 2021. Commissioning of the warship had been planned from 2024 onwards but it was reported that delays in the fitting out and sea trials would push it as well as its entry into service to 2025. History The Intermediate Frigate (FTI) program was a response to the requirement for fifteen first-class frigates to allow the French Navy to operate in a crisis zone, as recommended in the White Paper on Defense and National Security of 2013. This would see the five FTI ships ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FREMM Multipurpose Frigate
The European multi-purpose frigate or FREMM (; ) is a Franco-Italian family of warships designed by Naval Group and Fincantieri. This surface combatant is known in France as the ''Aquitaine'' class (17 units planned, of which 9 were later cancelled) and in Italy as the ''Bergamini'' class (10 units planned). The lead ship of the class, , was commissioned in November 2012 by the French Navy. Italy has ordered six general purpose and four anti-submarine variants. France, on the other hand, has ordered six anti-submarine variants and two air-defense ones. The FREMM has also been exported to various countries. Notably, the United States Navy selected a FREMM variant for their new of 20 frigates, to be built by Fincantieri, starting with a million contract for the lead ship. Background Three original variants of the FREMM were proposed; an anti-submarine variant (ASW) and a general-purpose variant (GP) and a land-attack variant (AVT) to replace the existing classes of frigates w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Towed Array Sonar
A towed array sonar is a system of hydrophones towed behind a submarine or a surface ship on a cable. Trailing the hydrophones behind the vessel, on a cable that can be kilometers long, keeps the array's sensors away from the ship's own noise sources, greatly improving its signal-to-noise ratio, and hence the effectiveness of detecting and tracking faint contacts, such as quiet, low noise-emitting submarine threats, or seismic signals. A towed array offers superior resolution and range compared with hull-mounted sonar. It also covers the Baffles (submarine), baffles, the blind spot of hull-mounted sonar. However, effective use of the system limits a vessel's speed and care must be taken to protect the cable from damage. History During World War I, a towed sonar array known as the "Electric Eel" was developed by Harvey Hayes, a U.S. Navy physicist. This system is believed to be the first towed sonar array design. It employed two cables, each with a dozen hydrophones attached. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
F110-class Frigate
The F110 class, also known as the ''Bonifaz'' class, are a multi-purpose, Anti-submarine warfare, anti-submarine class of Aegis combat system-fitted heavy frigates under construction for the Spanish Navy. The project is being co-developed by the Spanish Ministry of Defence (Spain), Ministry of Defence and the state-owned company Navantia. The construction of the first unit () started in April 2022. Deliveries are scheduled to start in about 2025. Project history The origins of the F110 class project are in the planned replacement for the Spanish Navy's s, as contemplated in the ALTAMAR Plan, a Spanish naval white book to modernize the Spanish Navy, with five frigates originally to be built as an enlarged version of the s. This concept was later discarded in favor of a mostly clean sheet design. On 23 December 2011, the Spanish Ministry of Defence (Spain), Ministry of Defence awarded a Euro, €2 million contract to Indra Sistemas, Indra and Navantia for the design of an integra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonar 2087
The Sonar 2087 (sometimes shortened to S2087) is a towed array sonar developed by Thales Underwater Systems (TUS). Manufactured in the United Kingdom, it is the British variant of the company's CAPTAS-4 manufactured in Brest, France, and part of its ''CAPTAS'' (Combined Active and Passive Towed Array Sonar) line of products. The Sonar 2087 replaced the older Sonar 2031 in the Royal Navy and equips eight Type 23 frigates. It is also expected to equip the Royal Navy's Type 26 frigates currently in production. The S2087 is also fitted on Type 23 frigate, Chilean Type 23 frigates acquired from the Royal Navy. The S2087 is a Low Frequency Active Sonar (LFAS) and consists of both active and passive sonar arrays. Thales describes the system as "a towed-array that enables Type 23 frigates to hunt the latest submarines at considerable distances and locate them beyond the range at which they [submarines] can launch an attack". was the first British vessel to be equipped with the S2087. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kimon-class Frigate
The ''Kimon'' class, also known as the FDI HN, is a frigate class for the Hellenic Navy. The FDI HN is a more heavily armed version of the Defence and intervention frigate, French frigates. The lead ship was originally expected to be commissioned in early 2025, however the sea trials are expected to complete by late 2025, after which the handover will take place. History In September 2021, the government of Greece (First Cabinet of Kyriakos Mitsotakis) signed an agreement with France's Naval Group to purchase three FDI HN frigates with an option for one more for the Hellenic Navy as part of a Euro, €3 billion ($3.34 Billion, bn) defence package. It was reported that the Hellenic Navy ships would eventually carry a more extensive weapons fit, capable of carrying up to 32 Aster (missile family), Aster-30 air defence missiles. This will permit the Hellenic Navy to operate three ships with 32 air defence missiles plus 21 point defence missiles in a Mk31 21-cell launcher of RIM-11 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RTX Corporation
RTX Corporation, formerly Raytheon Technologies Corporation, is an American multinational aerospace and defense conglomerate headquartered in Arlington, Virginia. It is one of the largest aerospace and defense manufacturers in the world by revenue and market capitalization, as well as one of the largest providers of intelligence services. In 2023, the company's seat in Forbes Global 2000 was 79. RTX manufactures aircraft engines, avionics, aerostructures, cybersecurity solutions, guided missiles, air defense systems, satellites, and drones. The company is a large military contractor, getting much of its revenue from the U.S. government. The company was formed in 2020 by a merger of equals between the aerospace subsidiaries of United Technologies Corporation (UTC) and the Raytheon Company. Before the merger, UTC spun off its non-aerospace subsidiaries Otis Elevator Company and Carrier Corporation. The merged company adopted the better-known name of Raytheon in the form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-submarine Warfare
Anti-submarine warfare (ASW, or in the 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 involve 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 instanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Combatant
Surface combatants (or surface ships or surface vessels) are a subset of naval warships which are designed for naval warfare, warfare on the surface of the water, with their own weapons and armed forces. They are generally ships built to fight other ships, submarines, aircraft or land targets, and can carry out several other missions including counter-narcotics operations and maritime interdiction. Their primary purpose is to engage space, air, surface, and submerged targets with weapons deployed from the ship itself, rather than by crewed carried craft.Naval Transformational Roadmap Office of Naval Research. Retrieved 2009-08-29. Surface ships include cruisers, destroyers, frigates, and corvettes, and several outdated types including battleships and battlecruisers. The category does not includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 26 Frigate
The Type 26 frigate, also known as City-class frigate, is a ship class, class of frigates and destroyers being built for the United Kingdom's Royal Navy, with variants also being built for the Australian and Canadian navies. The programme, known as the Global Combat Ship, was launched by the British Ministry of Defence (United Kingdom), Ministry of Defence to partially replace the navy's thirteen Type 23 frigates, and for export. Its primary role is to conduct advanced anti-submarine warfare missions while supporting air defence and general purpose operations. The type is the first naval platform shared between Australia, Canada and the United Kingdom since the pre-Second World War Tribal-class destroyer (1936), Tribal-class destroyer. The programme began in 1998, under what was then known as the Future Surface Combatant (FSC). By March 2010 however, this procurement programme had evolved to become the Global Combat Ship, following the announcement of a four-year, £127 mil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 23 Frigate
The Type 23 frigate or Duke class is a class of frigates built for the United Kingdom's Royal Navy. The ships are named after British Dukes, thus leading to the class being commonly known as the Duke class. The first Type 23, , was commissioned in 1989, and the sixteenth, was commissioned in June 2002. They form the core of the Royal Navy's destroyer and frigate fleet and serve alongside the Type 45 destroyers. They were designed for anti-submarine warfare, but have been used for a range of uses. Eight Type 23 frigates remain in service with the Royal Navy, with three vessels having been sold to the Chilean Navy and five being retired since 2021. The Royal Navy's Type 23 frigates will be replaced by the Type 26 Global Combat Ship and the Type 31 frigate. it is anticipated that HMS ''St Albans'' will be the last to retire from the Royal Navy, in 2035. Development When first conceived in the late 1970s, the Type 23 was intended to be a light anti-submarine frigate with a t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brest, France
Brest (; ) is a port, port city in the Finistère department, Brittany (administrative region), Brittany. Located in a sheltered bay not far from the western tip of a peninsula and the western extremity of metropolitan France, Brest is an important harbour and the second largest French military port after Toulon. The city is located on the western edge of continental France. With 139,456 inhabitants (2020), Brest forms Lower Brittany, Western Brittany's largest functional area (France), metropolitan area (with a population of 370,000 in total), ranking third behind only Nantes and Rennes in the whole of historic Brittany, and the List of communes in France with over 20,000 inhabitants, 25th most populous city in France (2019); moreover, Brest provides services to the one million inhabitants of Western Brittany. Although Brest is by far the largest city in Finistère, the ''Prefectures in France, préfecture'' (administrative seat) of the department is in the much smaller town of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
