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Aréthuse-class Submarine
The ''Aréthuse'' class were submarines built for the French Navy (french: Marine Nationale) in the 1950s. They were designed as attack submarines for anti-submarine warfare and were referred to as ''Sous-marins de Chasse'' by the French Navy. These submarines had advanced sensors and were very quiet. They were influenced by the World War II German Type XXIII U-boats. The are an enlarged version built for the French, Pakistani, Portuguese, Spanish and South African navies. Description Designated ''Sous-marins de Chasse'' by the French Navy the ''Aréthuse'' class were designed as attack submarines specifically for operations in the Mediterranean Sea. The design was influenced by the German World War II Type XXIII U-boats, though were larger, with a heavier armament and faster when submerged but retained a small silhouette and great manoeverability. They had a standard displacement of , surfaced and submerged. Vessels of the class were long with a beam of and a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Narval-class Submarine
The ''Narval'' class (''sous-marins d'escadre'', "fleet submarines") were patrol submarines built for the French Navy in the 1950s. Design The ''Narval'' type was an offspring of the ''E-48'' project, inspired by the German Type XXI U-boats of the Second World War, particularly which were brought into French service. Compared to the Type XXI, the ''Narval'' class introduced an entirely new schnorchel system and novel detection systems, gained 33% in operational range on electric power (, compared to the available to the type XXI), and doubled the test depth. The propellers were also particularly studied to minimise noise. The hulls of the ''Narval''s were assembled from seven sections welded together. The engine were two-stroke diesels made by the French constructor Schneider, which proved unreliable and noisy to the point where the engine section became difficult to man at full power. From 1966 to 1970, the ''Narval''s underwent extensive modernisation, where their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draft (hull)
The draft or draught of a ship's hull is the vertical distance between the waterline and the bottom of the hull (keel). The draught of the vessel is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if deployed. Draft determines the minimum depth of water a ship or boat can safely navigate. The related term air draft is the maximum height of any part of the vessel above the water. The more heavily a vessel is loaded, the deeper it sinks into the water, and the greater its draft. After construction, the shipyard creates a table showing how much water the vessel displaces based on its draft and the density of the water (salt or fresh). The draft can also be used to determine the weight of cargo on board by calculating the total displacement of water, accounting for the content of the ship's bunkers, and using Archimedes' principle. The closely related term "trim" is defined as the difference between the forward and aft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine Classes
A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely operated vehicles and robots, as well as medium-sized or smaller vessels, such as the midget submarine and the wet sub. Submarines are referred to as ''boats'' rather than ''ships'' irrespective of their size. Although experimental submarines had been built earlier, submarine design took off during the 19th century, and they were adopted by several navies. They were first widely used during World War I (1914–1918), and are now used in many navies, large and small. Military uses include attacking enemy surface ships (merchant and military) or other submarines, and for aircraft carrier protection, blockade running, nuclear deterrence, reconnaissance, conventional land attack (for example, using a cruise missile), and covert insertion of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Museum Ship
A museum ship, also called a memorial ship, is a ship that has been preserved and converted into a museum open to the public for educational or memorial purposes. Some are also used for training and recruitment purposes, mostly for the small number of museum ships that are still operational and thus capable of regular movement. Several hundred museum ships are kept around the world, with around 175 of them organised in the Historic Naval Ships AssociationAbout The Historic Naval Ships Association (the international website. Accessed 2008-06-06.) though many are not naval museum ships, from general merchant ships to [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, fashion, gastronomy, and science. For its leading role in the arts and sciences, as well as its very early system of street lighting, in the 19th century it became known as "the City of Light". Like London, prior to the Second World War, it was also sometimes called the capital of the world. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an estimated population of 12,262,544 in 2019, or about 19% of the population of France, making the region France's primate city. The Paris Region had a GDP of €739 billion ($743 billion) in 2019, which is the highest in Europe. According to the Economist Intelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reserve Fleet
A reserve fleet is a collection of naval vessels of all types that are fully equipped for service but are not currently needed; they are partially or fully decommissioned. A reserve fleet is informally said to be "in mothballs" or "mothballed"; an equivalent expression in unofficial modern US naval usage is "ghost fleet". In earlier times, especially in British usage, the ships were said to be "laid up in ordinary". Overview Such ships are held in reserve against a time when it may be necessary to call them back into service. They are usually tied up in backwater areas near naval bases or shipyards in order to speed the reactivation process. They may be modified for storage during such a period, for instance by having rust-prone areas sealed off or wrapped in plastic or, in the case of sailing warships, the masts removed. While being held in the reserve fleet, ships typically have a minimal crew (known informally as a skeleton crew) to ensure that they stay in somewhat usable co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Africa
North Africa, or Northern Africa is a region encompassing the northern portion of the African continent. There is no singularly accepted scope for the region, and it is sometimes defined as stretching from the Atlantic shores of Mauritania in the west, to Egypt's Suez Canal. Varying sources limit it to the countries of Algeria, Libya, Morocco, and Tunisia, a region that was known by the French during colonial times as "''Afrique du Nord''" and is known by Arabs as the Maghreb ("West", ''The western part of Arab World''). The United Nations definition includes Morocco, Algeria, Tunisia, Libya, Egypt, Sudan, and the Western Sahara, the territory disputed between Morocco and the Sahrawi Republic. The African Union definition includes the Western Sahara and Mauritania but not Sudan. When used in the term Middle East and North Africa (MENA), it often refers only to the countries of the Maghreb. North Africa includes the Spanish cities of Ceuta and Melilla, and plazas de s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keel Laying
Laying the keel or laying down is the formal recognition of the start of a ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship. Keel laying is one of the four specially celebrated events in the life of a ship; the others are launching, commissioning and decommissioning. In earlier times, the event recognized as the keel laying was the initial placement of the central timber making up the backbone of a vessel, called the keel. As steel ships replaced wooden ones, the central timber gave way to a central steel beam. Modern ships are most commonly built in a series of pre-fabricated, complete hull sections rather than around a single keel. The event recognized as the keel laying is the first joining of modular components, or the lowering of the first module into place in the building dock. It is now often called "keel authentication", and is the ceremonial beginning of the ship's life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cité Des Sciences Et De L'Industrie
The Cité des Sciences et de l'Industrie ("City of Science and Industry", abbreviated la CSI) or simply CSI is the biggest science museum in Europe. Located in the Parc de la Villette in Paris, France, it is one of the three dozen French Cultural Centers of Science, Technology and Industry (CCSTI), promoting science and science culture. About five million people visit the Cité each year. Attractions include a planetarium, a submarine (the Argonaute), an IMAX theatre (La Géode) and special areas for children and teenagers. The CSI is classified as a public establishment of an industrial and commercial character, an establishment specialising in the fostering of scientific and technical culture. Created on the initiative of President Giscard d'Estaing, the goal of the Cité is to spread scientific and technical knowledge among the public, particularly for youth, and to promote public interest in science, research and industry. The most notable features of the "bioclimatic fac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cherbourg
Cherbourg (; , , ), nrf, Chèrbourg, ) is a former commune and subprefecture located at the northern end of the Cotentin peninsula in the northwestern French department of Manche. It was merged into the commune of Cherbourg-Octeville on 28 February 2000,Décret 23 February 2000 which was merged into the new commune of Cherbourg-en-Cotentin on 1 January 2016. Cherbourg is protected by Cherbourg Harbour, between and |
Arsenal De Cherbourg
Cherbourg Naval Base is a naval base in Cherbourg Harbour, Cherbourg, Manche Departments of France, department, Normandy. The town has been a base of the French Navy since the opening of the military port in 1813. History Early works Cherbourg had been a stronghold since Roman times, and was one of the strongest fortresses of the Hundred Years War. But until the 18th century it had only a shallow harbour, minor commercial activity and no military development. In the 17th century the military engineer Sébastien Le Prestre de Vauban, Vauban drew up plans to develop Cherbourg into a port where passing ships could shelter from attack or storms. Vauban's plans included an artificial harbour, and the quadrupling of the size of the city. The project was eventually abandoned, before being temporarily revived under Louis XV of France, Louis XV. The British raid on Cherbourg in 1758 however caused severe damage to the barely completed commercial port. By the 1770s, with French involvement ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo
A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and 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 shi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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