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Canon De 138 Mm Modèle 1927
The Canon de 138 mm Modèle 1927 was a medium-calibre gun of the French Navy used during World War II. It was derived from a German World War I design. It was used on the destroyers of the ''Aigle'' and ''Vauquelin'' classes and the ''Bougainville''-class sloops. Description The 40-calibre ''Mle 1927'' was derived from the German World War I ''15 cm L/45 UToF'' gun as mounted on the large torpedo boat SMS S113 received by France as war reparations. It copied the German gun's semi-automatic action and its horizontal sliding-block breech. It had an autofretted, monobloc barrel. It used of powder to push a shell to a muzzle velocity of .Campbell, p. 298 Mounting The ''Mle 1927'' was used in single centre-pivot mountings that weighed approximately that were fitted with a thick gun shield A U.S. Marine manning an M240 machine gun equipped with a gun shield A gun shield is a flat (or sometimes curved) piece of armor designed to be mounted on a crew-served weapon such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Musée National De La Marine
The Musée national de la Marine (National Navy Museum) is a maritime museum located in the Palais de Chaillot, Trocadéro, in the 16th arrondissement of Paris. It has annexes at Brest, Port-Louis, Rochefort ( Musée National de la Marine de Rochefort), and Toulon. The permanent collection originates in a collection that dates back to Louis XV of France. History In 1748, Henri-Louis Duhamel du Monceau offered a collection of models of ships and naval installations to Louis XV of France, with the request that the items be displayed at the Louvre and made available to students of the Naval engineers school, which Duhamel headed. The collection was put on display in 1752, in a room of the first floor, next to the Academy of Sciences; the room was called "''Salle de Marine''" (Navy room), and was used for teaching. With the French Revolution, the Salle de Marine closed in 1793. The collection was added to models owned by the King personally, to others owned by the Ministry of Nav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bougainville-class Sloop
The ''Bougainville'' class was a group of colonial avisos, or sloops, built for the French Navy during the 1930s. They were designed to operate in the remote locations of the French Empire. Design and description The ''Bougainville''-class avisos were intended for colonial service abroad in austere conditions. Endurance was one of the primary considerations as were living conditions in tropical climates for the crew. The ships also had to accommodate an admiral and his staff as they could serve as the flagship for the overseas divisions of the French Navy. The ships were equipped with air conditioning throughout and the crew's living spaces were insulated as well. The last two ships, ''Beautemps-Beaupré'' and ''La Pérouse'', were to be completed to a modified design with a single funnel as survey ships. They had an overall length of , a beam of , and a draught of . The ships displaced at standard load and at deep load. The hull was subdivided by 10 transverse bulkheads ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Guns Of France
A navy, naval force, or maritime force is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operations and related functions. It includes anything conducted by surface ships, amphibious ships, submarines, and seaborne aviation, as well as ancillary support, communications, training, and other fields. The strategic offensive role of a navy is projection of force into areas beyond a country's shores (for example, to protect sea-lanes, deter or confront piracy, ferry troops, or attack other navies, ports, or shore installations). The strategic defensive purpose of a navy is to frustrate seaborne projection-of-force by enemies. The strategic task of the navy also may incorporate nuclear deterrence by use of submarine-launched ballistic missiles. Naval operations can be broadly divided between riverine and littoral applications (brown-water navy), open-ocean applications (blue- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II Naval Weapons
In its most general sense, the term "world" refers to the totality of entities, to the whole of reality or to everything that is. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique while others talk of a "plurality of worlds". Some treat the world as one simple object while others analyze the world as a complex made up of many parts. In ''scientific cosmology'' the world or universe is commonly defined as " e totality of all space and time; all that is, has been, and will be". '' Theories of modality'', on the other hand, talk of possible worlds as complete and consistent ways how things could have been. ''Phenomenology'', starting from the horizon of co-given objects present in the periphery of every experience, defines the world as the biggest horizon or the "horizon of all horizons". In ''philosophy of mind'', the world is commonly contrasted with the mind as that which is represented by the mind. ''Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gun Shield
A U.S. Marine manning an M240 machine gun equipped with a gun shield A gun shield is a flat (or sometimes curved) piece of armor designed to be mounted on a crew-served weapon such as a machine gun, automatic grenade launcher, or artillery piece. Military Some mounted machine guns and artillery pieces are equipped with metal armor plates to protect the gunners from small arms fire and shrapnel from explosions. They were fitted to some armored fighting vehicles and patrol boats during the Vietnam War. Gun shields fell out of widespread use after the Vietnam war, but they have seen a resurgence in popularity during the 1990s. Israeli military analysts began urging the use of gun shields, pointing to the grave risk to soldiers exposed to fire from automatic weapons. In particular, it was noted that many casualties were hit in areas not protected by body armor or a helmet, such as the neck or face. The U.S. began using gun shields during the 2000s-era wars in Iraq and Afghanista ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autofrettage
Autofrettage is a work hardening process in which a pressure vessel (thick walled) is subjected to enormous pressure, causing internal portions of the part to yield plastically, resulting in internal compressive residual stresses once the pressure is released. The goal of autofrettage is to increase the pressure carrying capacity of the final product. Inducing residual compressive stresses into materials can also increase their resistance to stress corrosion cracking; that is, non-mechanically-assisted cracking that occurs when a material is placed in a corrosive environment in the presence of tensile stress. The technique is commonly used in manufacture of high-pressure pump cylinders, warship and gun barrels, and fuel injection systems for diesel engines. Due to work hardening process it also enhances wear life of the barrel marginally. While autofrettage will induce some work hardening, that is not the primary mechanism of strengthening. The start point is a single steel tube ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SMS S113
Short Message/Messaging Service, commonly abbreviated as SMS, is a text messaging service component of most telephone, Internet and mobile device systems. It uses standardized communication protocols that let mobile devices exchange short text messages. An intermediary service can facilitate a text-to-voice conversion to be sent to landlines. SMS technology originated from radio telegraphy in radio memo pagers that used standardized phone protocols. These were defined in 1986 as part of the Global System for Mobile Communications ( GSM) series of standards.GSM Doc 28/85 "Services and Facilities to be provided in the GSM System" rev2, June 1985 The first SMS message was sent on 3 December 1992, when Neil Papworth, a test engineer for Sema Group, sent "Merry Christmas" to the Orbitel 901 phone of colleague Richard Jarvis. SMS rolled out commercially on many cellular networks that decade and became hugely popular worldwide as a method of text communication. By the end of 2010, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caliber
In guns, particularly firearms, caliber (or calibre; sometimes abbreviated as "cal") is the specified nominal internal diameter of the gun barrel Gauge (firearms) , bore – regardless of how or where the bore is measured and whether the finished bore matches that specification. It is measured in inches or in millimetres, millimeters. In the United States it is expressed in hundredths of an inch; in the United Kingdom in thousandths; and elsewhere in millimeters. For example, a "45 caliber" firearm has a barrel diameter of roughly . Barrel diameters can also be expressed using metric dimensions. For example, a "9 mm pistol" has a barrel diameter of about 9 millimeters. Since metric and US customary units do not convert evenly at this scale, metric conversions of caliber measured in decimal inches are typically approximations of the precise specifications in non-metric units, and vice versa. In a rifling , rifled barrel, the distance is measured between opposing Rifling#C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vauquelin-class Destroyer
The ''Vauquelin'' class was a group of six large destroyers () built for the French Navy () in the early 1930s. Entering service in 1933–1934, the sister ships spent most of their careers in the Mediterranean. During the Spanish Civil War of 1936–1939, they helped to enforce the non-intervention agreement. When France declared war on Germany in September 1939, all of the ''Vauquelin''s were assigned to the High Sea Forces ( (FHM)) which was tasked to escort French convoys and support the other commands as needed. Three of the sisters briefly deployed to Scotland in early 1940 to support the Allied forces in the Norwegian Campaign and was lost to an accidental explosion. The others returned to the Mediterranean in time to participate in Operation Vado, a bombardment of Italian coastal facilities after Italy entered the war in June. The Vichy French reformed the FHM after the French surrender in late June. After the Allies invaded French Lebanon and Syria in June 1941, wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Gun
Naval artillery is artillery mounted on a warship, originally used only for naval warfare and then subsequently used for naval gunfire support, shore bombardment and anti-aircraft roles. The term generally refers to tube-launched projectile-firing weapons and excludes self-propelled projectiles such as torpedoes, rockets, and missiles and those simply dropped overboard such as depth charges and naval mines. Origins The idea of ship-borne artillery dates back to the classical era. Julius Caesar indicates the use of ship-borne catapults against Britons ashore in his ''Commentarii de Bello Gallico''. The dromons of the Byzantine Empire carried catapults and Greek fire, fire-throwers. From the late Middle Ages onwards, warships began to carry cannon, cannons of various calibres. The Mongol invasion of Java introduced cannons to be used in naval warfare (e.g. Cetbang by the Majapahit). The Battle of Arnemuiden, fought between England and France in 1338 at the start of the Hundred Y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aigle-class Destroyer
The ''Aigle''-class destroyers (''contre-torpilleurs'') were built for the French navy during the 1920s. They were very similar to the previous ''Guepard'' class, the only difference being improved machinery with higher pressure boilers, offering an additional of speed and a new model 138 mm gun with a sliding breech block giving a higher rate of fire. The ships were named after birds. Ships * ''Aigle'' (Eagle; pennant numbers 5, 6 and X13) :Built by Ateliers et Chantiers de France, Dunkirk :Launched 19 February 1931 :Completed 10 October 1932 :Scuttled 27 November 1942 :Refloated 10 July 1943. :Bombed and sunk 24 November 1943 :Broken up in situ 1952. * ''Vautour'' (Vulture; pennant numbers 6, 5, 73, X71) :Built by Forges et Chantiers de la Méditerranée, La Seyne :Launched 26 August 1930 :Completed 2 May 1932 :Scuttled 27 November 1942 :Refloated 17 January 1943 :Bombed and sunk 4 February 1944 :Broken up in situ 1951 * ''Albatros'' (3, 2, 5, 72, X73, X77, F762, D614) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War I
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fighting occurring throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia. An estimated 9 million soldiers were killed in combat, plus another 23 million wounded, while 5 million civilians died as a result of military action, hunger, and disease. Millions more died in genocides within the Ottoman Empire and in the 1918 influenza pandemic, which was exacerbated by the movement of combatants during the war. Prior to 1914, the European great powers were divided between the Triple Entente (comprising France, Russia, and Britain) and the Triple Alliance (containing Germany, Austria-Hungary, and Italy). Tensions in the Balkans came to a head on 28 June 1914, following the assassination of Archduke Franz Ferdin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_Driver_and_Commander_from_A_Squadron%2C_3rd_Cavalry_Regiment.jpg "Click for more on -> Gun Shield")
