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Adolf Gun
The 40.6 cm SK C/34,SK - ''Schnelladekanone'' (quick loading cannon); ''C - Construktionsjahr'' (year of design) sometimes known as the Adolfkanone (Adolf gun), was a German naval gun, designed in 1934 by Krupp and originally intended for the early H-class battleships. Description Intended to be mounted in battleship turrets, the guns were produced in left and right-handed pairs. These pairs were split for individual mounting in the coastal defence role. The gun's barrel was approximately long. In a coastal defence emplacement the gun could be elevated to 52 degrees, giving it a range of with the special long range shell called the Adolf-shell. It used the standard German naval system of ammunition where the base charge was held in a metallic cartridge case and supplemented by another charge in a silk bag. In terms of construction the guns were identical to the 38 cm SK C/34 - only the calibre of the barrel was different. The rate of fire for the weapon was around 2&nbs ... [...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] |
Adolph Gun Harstad 2007-01-31
Adolf (also spelt Adolph or Adolphe, Adolfo and when Latinised Adolphus) is a given name used in German-speaking countries, Scandinavia, the Netherlands and Flanders, France, Italy, Spain, Portugal, Latin America and to a lesser extent in various Central European and East European countries with non-Germanic languages, such as Lithuanian Adolfas and Latvian Ādolfs. Adolphus can also appear as a surname, as in John Adolphus, the English historian. The female forms Adolphine and Adolpha are far more rare than the male names. The name is a compound derived from the Old High German ''Athalwolf'' (or ''Hadulf''), a composition of ''athal'', or ''adal'', meaning "noble" (or '' had(u)''-, meaning "battle, combat"), and ''wolf''. The name is cognate to the Anglo-Saxon name '' Æthelwulf'' (also Eadulf or Eadwulf). The name can also be derived from the ancient Germanic elements "Wald" meaning "power", "brightness" and wolf (Waldwulf). Due to negative associations with Adolf Hitle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BL 16 Inch Mk I Naval Gun
The BL 16-inch Mark I was a British naval gun introduced in the 1920s and used on the two ''Nelson''-class battleships. A breech-loading gun, the barrel was 45 calibres long ("/45" in shorthand) meaning 45 times the bore – long. Description These wire-wound built-up guns had originally been planned for the cancelled G3-class battlecruiser design upon which the ''Nelson'' class drew. Sir W. G. Armstrong Whitworth & Company at Elswick, Vickers at Barrow-in-Furness, William Beardmore & Company at Dalmuir and the Royal Gun Factory at Woolwich made a total of 29 guns of which 18 would be required for both ships at any time. These guns broke with the example offered by the earlier 15-inch Mk I gun, which fired a heavy shell at a rather low muzzle velocity, and instead fired a rather light shell at a high muzzle velocity; this was not a success, as at the initial muzzle velocity the gun wore down rapidly and the accuracy was unsatisfactory, so much that it was lowered. Fur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
16"/50 Caliber Mark 7 Gun
The 16"/50 caliber Mark 7 – United States Naval Gun is the main armament of the ''Iowa''-class battleships and was the planned main armament of the cancelled . Description Due to a lack of communication during design, the Bureau of Ordnance assumed the ''Iowa'' class would use the /50 Mark 2 guns constructed for the 1920 ''South Dakota''-class battleships. However, the Bureau of Construction and Repair assumed that the ships would carry a compact 16-in/50 turret and designed the ships with barbettes too small to accommodate the 16-in/50 Mark 2 three-gun turret that the Bureau of Ordnance was actually working on. The new lightweight 16-in/50 Mark 7 was designed to resolve this conflict. These guns were 50 calibers long—or 50 times their bore diameter, which makes the barrels long, from chamber to muzzle. Each gun weighed about without the breech, and with the breech. They fired projectiles weighing from at different muzzle velocities, depending on the shell. Whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
16"/45 Caliber Mark 6 Gun
The 16"/45 caliber Mark 6 gun is a naval gun designed in 1936 by the United States Navy for their Treaty battleships. It was introduced in 1941 aboard their s, replacing the originally intended 14"/50 caliber Mark B guns and was also used for the follow-up ''South Dakota'' class. These battleships carried nine guns in three three-gun turrets. The gun was an improvement to the 16"/45 caliber guns used aboard the , and the predecessor to the 16"/50 caliber Mark 7 gun used aboard the . Description The 16 in/45 were improved versions of the Mark 5 guns mounted on the s, with their limit of a shell with a maximum range and their turret limit of 30-degree elevation. A major alteration from the older guns was the Mark 6's ability to fire a new armor-piercing (AP) shell developed by the Bureau of Ordnance. At full charge with a brand-new gun, the heavy shell would be expelled at a muzzle velocity of 2,300 feet per second (700 m/s); at a reduced charge, the same she ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of The Largest Cannon By Caliber
The list of cannon by caliber contains all types of cannon through the ages listed in decreasing caliber size. For the purpose of this list, the development of large-calibre artillery can be divided into three periods, based on the kind of projectiles used, due to their dissimilar characteristics, and being practically incommensurable in terms of their bore size: *Stone balls: Cannon of extraordinary bore, which fired stone balls, were first introduced at the turn of the 14th to 15th century in Western Europe. Following a logic of increasing performance through size, they had evolved from small handguns to giant wrought-iron or cast-bronze bombards within a span of just several decades. *Iron balls and shot: By the 16th century, however, a general switch from stone balls to smaller, but much more effective iron projectiles was in full swing. This and the parallel tendency towards standardized, rapid-firing cannon made the enormously costly and logistically demanding giant guns so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Gun
A railway gun, also called a railroad gun, is a large artillery piece, often surplus naval artillery, mounted on, transported by, and fired from a specially designed railroad car, railway wagon. Many countries have built railway guns, but the best-known are the large Krupp-built pieces used by German Reich, Germany in World War I and World War II. Smaller guns were often part of an armoured train. Only able to be moved where there were good tracks, which could be destroyed by artillery bombardment or airstrike, railway guns were phased out after World War II. Design considerations The design of a railway gun has three firing issues over and above those of an ordinary artillery piece to consider. Namely how the gun is going to be traversed – i.e. moved from side to side to aim; how the horizontal component of the recoil force will be absorbed by the gun's carriage and how the vertical recoil force will be absorbed by the ground. Methods of traverse The first method of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concrete
Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminum combined. Globally, the ready-mix concrete industry, the largest segment of the concrete market, is projected to exceed $600 billion in revenue by 2025. This widespread use results in a number of environmental impacts. Most notably, the production process for cement produces large volumes of greenhouse gas emissions, leading to net 8% of global emissions. Other environmental concerns include widespread illegal sand mining, impacts on the surrounding environment such as increased surface runoff or urban heat island effect, and potential public health implications from toxic ingredients. Significant research and development is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cross-Channel Guns In The Second World War
The Dover Strait coastal guns were long-range coastal artillery batteries that were sited on both sides of the English Channel during the Second World War. The British built several gun positions along the coast of Kent, England while the Germans fortified the Pas-de-Calais in occupied France. The Strait of Dover was strategically important because it is the narrowest part of the English channel. Batteries on both sides attacked shipping as well as bombarding the coastal towns and military installations. The German fortifications would be incorporated into the Atlantic Wall which was built between 1942 and 1944. German installations After the Fall of France in June 1940, Adolf Hitler personally discussed the possibility of invasion with ''Großadmiral'' (Grand Admiral) Erich Raeder, the Commander-in-Chief of the ''Kriegsmarine'' (German Navy) on 21 May 1940. Almost a month later on 25 June he ordered '' Oberkommando der Wehrmacht'' (''OKW'', supreme command of the armed forces) t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norwegian Army
The Norwegian Army ( no, Hæren) is the land warfare service branch of the Norwegian Armed Forces. The Army is the oldest of the Norwegian service branches, established as a modern military organization under the command of the King of Norway in 1628. The Army participated in various continental wars during the 17th, 18th, and 19th centuries as well, both in Norway and abroad, especially in World War II (1939–1945). It constitutes part of the Norwegian military contribution as a charter member of the North Atlantic Treaty Organization (NATO) since 1949. History Creation of the Norwegian Army After the Kalmar War broke out in 1611, the Danish-Norwegian king, Christian IV tried to revive the leidang, with dire results. As the Norwegian peasantry had not been armed or trained in the use of arms for nearly three centuries, they were not able to fight. Soldiers deserted or were captured. The soldiers had to participate in military drills, while providing supplementary labor to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harstad
( se, Hárstták) is the second-most populated municipality in Troms og Finnmark county, Norway. It is mostly located on the large island of Hinnøya. The municipal center is the Harstad (town), town of Harstad, the most populous town in Central Hålogaland, and the third-largest in all of Northern Norway. The town was incorporated in 1904. Villages in the municipality include Elgsnes, Fauskevåg, Gausvik, Grøtavær, Kasfjord, Lundenes, Nergården and Sørvika. The municipality is the 226th largest by area out of the 356 municipalities in Norway. Harstad is the 49th most populous municipality in Norway with a population of 24,804. The municipality's population density is and its population has increased by 2.9% over the previous 10-year period. Geography The municipality is located on many islands in southern Troms og Finnmark county. Most of the municipality is located on the large island of Hinnøya, which is Norway's largest coastal island (three islands in the Svalbard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
