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Suffren-class Frigate
The ''Suffren'' class were two anti-air frigates of the French Navy, designed to protect a fleet against air threats, surface ships, and submarines. They were the first French ships to be built specifically as guided missile frigates. Ordered in 1960, the class was intended to be more numerous, but budget pressure from the French nuclear weapons program limited their number. The lead ship, , entered service in 1967 and the second ship, , in 1970. They remained in service until the 2000s when they were replaced by ships of the . Background and description The two ships were designed as anti-air and anti-submarine escorts for the s and were similar in concept to the British Type 82 destroyer. They were ordered in 1960 as part of France's new naval policy of deterrence/intervention/defence following the election of Charles de Gaulle as president of France. The French designation for the class was ''frégates lance-engins'' (FLE 60). They were designated as frigates by the French N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arsenal De Brest
The Brest Arsenal () is a collection of naval and military buildings located on the banks of the river Penfeld, in Brest, France. Timeline *1631–1635 – Beginning of the foundations of the port infrastructure. *1674 – Appearance of the Powder Magazines, Cordellerie and Military Hospital. *1683 – Creation of the Troulan dock. *1746 – Creation of the three Pontaniou docks near the anchor forges and naval constructions. *1752 – Construction of the Bagne de Brest, Bagne demolished in 1947. *1807 – Construction of the Bâtiment aux Lions to house the arsenal's magazines. *1822–1827 – Construction of Bassin 6 at the Salou. *1858 – Appropriation of the Tourville and Jean Bart quays by the navy. *1864–1865 – Construction of Bassin 7 at the Salou. *1865 – Closure of the Penfeld port to commercial boats, turning it into a military port. *1889–1896 – Construction of the South Jetty (1,500 m). *1895–1900 – Construction of the West Jetty (200 m). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
President Of France
The president of France, officially the president of the French Republic (), is the executive head of state of France, and the commander-in-chief of the French Armed Forces. As the presidency is the supreme magistracy of the country, the position is the highest office in France. The powers, functions and duties of prior presidential offices, in addition to their relation with the prime minister and government of France, have over time differed with the various constitutional documents since the Second Republic. The president of the French Republic is the co-prince of Andorra, grand master of the Legion of Honour and of the National Order of Merit. The officeholder is also honorary proto-canon of the Archbasilica of Saint John Lateran in Rome, although some have rejected the title in the past. The current president is Emmanuel Macron, who succeeded François Hollande on 14 May 2017 following the 2017 presidential election, and was inaugurated for a second term on 7 May ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malafon
Malafon (MArine LAtécoère FONds) was a French ship-launched anti-submarine missile system. Developed in the 1950s and 1960s, the weapon was intended to take advantage of the greater detection ranges possible with towed sonar arrays. The missile entered service in 1966 and was manufactured by Groupe Latécoère The weapon is essentially a glider-delivered version of the L4 torpedo. The launcher is a circular mount, which allows the weapon to be rotated to the correct bearing, then fired at a fixed elevation of +15°. Two solid booster rockets accelerate it to within 4 seconds before falling away. The unpowered glider continues at an altitude of , altering course in mid-flight under radio control of the launch platform. Effective range was . As it reaches the target, the glider drops the torpedo, which splashes into the sea and commences a circular search pattern. The range of the Malafon meant that it was expected to hit the water within of the submarine's location. The L4 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dual-purpose Gun
A dual-purpose gun is a naval artillery mounting designed to engage both surface and air targets. Description Second World War-era capital ships had four classes of artillery: the heavy main battery, intended to engage opposing battleships and cruisers of 305 mm to 457 mm (12 inch to 18 inch); a secondary battery for use against enemy destroyers of 152 mm to 203 mm (6 inch to 8 inch); heavy anti-aircraft guns of 76 mm to 127 mm (3 inch to 5 inch), which could create barrages to knock out airplanes at a distance; finally, light rapid-fire anti-aircraft batteries (A/A) to track and bring down aircraft at close range. The light A/A was dispersed throughout the ship and included both automatic cannons of 20 mm to 40 mm (.787 inch to 1.57 inch) and heavy machine guns of 12.7 mm to 14.5 mm (.50 inch to .58 inch). During World War II, the US Navy, Royal Navy, the French Navy, and the Imperial Japanese Navy combined the secondary bat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centerline (nautical)
Center line, centre line or centerline may refer to: Sports * Center line, marked in red on an ice hockey rink * Centre line (football), a set of positions on an Australian rules football field * Centerline, a line that separates the service courts in Glossary of pickleball#C, pickleball Transportation * Center line, a road surface marking * Center line, a Taxiway#Taxiway markings, taxiway marking * Center line, a Runway#Markings, runway marking * CenterLine (OCTA), failed light-rail project in Orange County, California, U.S. * Centerline (nautical), the dividing line between port and starboard sides of a ship or boat * Centreline, a bus service in Manchester, England, later rebranded Metroshuttle Other uses * Center Line, Michigan, a place in the United States ** Center Line High School * Centre-Line Party, former name of the Australian Democrats political party * Centerline, an Engineering drawing abbreviations and symbols, engineering drawing symbol stylized by an overlapping ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface-to-air Missile
A surface-to-air missile (SAM), also known as a ground-to-air missile (GTAM) or surface-to-air guided weapon (SAGW), is a missile designed to be launched from the ground or the sea to destroy aircraft or other missiles. It is one type of anti-aircraft warfare, anti-aircraft system; in modern armed forces, missiles have replaced most other forms of dedicated anti-aircraft weapons, with anti-aircraft guns pushed into specialized roles. The first attempt at SAM development took place during World War II, but no operational systems were introduced. Further development in the 1940s and 1950s led to operational systems being introduced by most major forces during the second half of the 1950s. Smaller systems, suitable for close-range work, evolved through the 1960s and 1970s, to modern systems that are man-portable. Shipborne systems followed the evolution of land-based models, starting with long-range weapons and steadily evolving toward smaller designs to provide a layered defence. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quarterdeck
The quarterdeck is a raised deck behind the main mast of a sailing ship. Traditionally it was where the captain commanded his vessel and where the ship's colours were kept. This led to its use as the main ceremonial and reception area on board, and the word is still used to refer to such an area on a ship or even in naval establishments on land. Many such facilities have areas decorated like shipboard quarterdecks. In the 20th century the word came to be applied to the area at the stern of the ship, often (on naval vessels) used for secondary weapons and (on battleships) seaplane catapults. Ceremonial use There are ancient traditions of offering special deference to the quarterdeck. Greek, Roman, and Carthaginian warships all carried shrines which were given special respect. This continued into Christian times, and in medieval British warships, the religious shrine was set up on the quarterdeck. All hands were required to salute it by taking off their hats or caps. This le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbocharger
In an internal combustion engine, a turbocharger (also known as a turbo or a turbosupercharger) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake air, forcing more air into the engine in order to produce more power for a given displacement. Turbochargers are distinguished from superchargers in that a turbocharger is powered by the kinetic energy of the exhaust gases, whereas a is mechanically powered (usually by a belt from the engine's crankshaft). However, up until the mid-20th century, a turbocharger was called a "turbosupercharger" and was considered a type of supercharger. History Prior to the inv ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geared Turbine
A steam turbine or steam turbine engine is a machine or heat engine that extracts thermal energy from pressurized steam and uses it to do mechanical work utilising a rotating output shaft. Its modern manifestation was invented by Sir Charles Parsons in 1884. It revolutionized marine propulsion and navigation to a significant extent. Fabrication of a modern steam turbine involves advanced metalwork to form high-grade steel alloys into precision parts using technologies that first became available in the 20th century; continued advances in durability and efficiency of steam turbines remains central to the energy economics of the 21st century. The largest steam turbine ever built is the 1,770 MW Arabelle steam turbine built by Arabelle Solutions (previously GE Steam Power), two units of which will be installed at Hinkley Point C Nuclear Power Station, England. The steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency from the u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deep Load
The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, tonnes are more commonly used. Ship displacement varies by a vessel's degree of load, from its empty weight as designed (known as "lightweight tonnage") to its maximum load. Numerous specific terms are used to describe varying levels of load and trim, detailed below. Ship displacement should not be confused with measurements of volume or capacity typically used for commercial vessels and measured by tonnage: net tonnage and gross tonnage. Calculation The process of determining a vessel's displacement begins with measuring its draft.George, 2005. p. 5. This is accomplished by means of its "draft marks". A merchant vessel has three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Displacement (ship)
The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, tonnes are more commonly used. Ship displacement varies by a vessel's degree of load, from its empty weight as designed (known as "lightweight tonnage") to its maximum load. Numerous specific terms are used to describe varying levels of load and trim, detailed below. Ship displacement should not be confused with measurements of volume or capacity typically used for commercial vessels and measured by tonnage: net tonnage and gross tonnage. Calculation The process of determining a vessel's displacement begins with measuring its draft.George, 2005. p. 5. This is accomplished by means of its "draft marks". A merchant vessel has t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draft (hull)
The draft or draught of a ship is a determined depth of the vessel below the waterline, measured vertically to its hull's lowest—its propellers, or keel, or other reference point. Draft varies according to the loaded condition of the ship. A deeper draft means the ship will have greater vertical depth below the waterline. Draft is used in under keel clearance calculations, where the draft is calculated with the available depth of water (from Electronic navigational charts) to ensure the ship can navigate safely, without grounding. Navigators can determine their draught by calculation or by visual observation (of the ship's painted load lines). Related terminology A ship's draft/draught is the "depth of the vessel below the waterline measured vertically to the lowest part of the hull, propellers, or other reference point". That is, the draft or draught is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
