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BL 8-inch Mk VIII Naval Gun
The BL 8 inch gun Mark VIIIMark VIII = Mark 8. Britain used Roman numerals to denote Marks (models) of ordnance until after World War II. Hence this was the eighth model of BL 8-inch naval gun. was the main battery gun used on the Royal Navy's cruisers,A more accurate term is "Treaty Cruiser", as the term heavy cruiser was only formally defined at the time of the London Naval Treaty of 1930. However, all the 8-inch gun cruisers introduced as a result of the 1922 Washington Treaty were what became known as "heavy cruisers". in compliance with the Washington Naval Treaty of 1922. This treaty allowed ships of not more than 10,000 tons standard displacement and with guns no larger than to be excluded from total tonnage limitations on a nation's capital ships. The 10,000 ton limit was a major factor in design decisions such as turrets and gun mountings. A similar gun formed the main battery of Spanish cruisers.Campbell 1985 p.389 In 1930, the Royal Navy adopted the BL 6 inch Mk XXI ... [...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] |
Cordite
Cordite is a family of smokeless propellants developed and produced in the United Kingdom since 1889 to replace black powder as a military propellant. Like modern gunpowder, cordite is classified as a low explosive because of its slow burning rates and consequently low brisance. These produce a subsonic deflagration wave rather than the supersonic detonation wave produced by brisants, or high explosives. The hot gases produced by burning gunpowder or cordite generate sufficient pressure to propel a bullet or shell to its target, but not so quickly as to routinely destroy the barrel of the gun. Cordite was used initially in the .303 British, Mark I and II, standard rifle cartridge between 1891 and 1915; shortages of cordite in World War I led to the creation of the "Devil's Porridge" munitions factory (HM Factory, Gretna) on the English-Scottish border, which produced 800 tonnes of cordite per annum. The UK also imported some United States–developed smokeless powders for us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
203 Mm Artillery
3 (three) is a number, numeral and digit. It is the natural number following 2 and preceding 4, and is the smallest odd prime number and the only prime preceding a square number. It has religious or cultural significance in many societies. Evolution of the Arabic digit The use of three lines to denote the number 3 occurred in many writing systems, including some (like Roman and Chinese numerals) that are still in use. That was also the original representation of 3 in the Brahmic (Indian) numerical notation, its earliest forms aligned vertically. However, during the Gupta Empire the sign was modified by the addition of a curve on each line. The Nāgarī script rotated the lines clockwise, so they appeared horizontally, and ended each line with a short downward stroke on the right. In cursive script, the three strokes were eventually connected to form a glyph resembling a with an additional stroke at the bottom: ३. The Indian digits spread to the Caliphate in the 9th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Guns Of The United Kingdom
A navy, naval force, or maritime force is the branch of a nation's armed forces principally designated for naval warfare, naval and amphibious warfare; namely, lake-borne, riverine, littoral zone, littoral, or ocean-borne combat operations and related functions. It includes anything conducted by surface Naval ship, ships, amphibious warfare, amphibious ships, submarines, and seaborne naval aviation, aviation, as well as ancillary support, communications, training, and other fields. The strategic offensive role of a navy is Power projection, projection of force into areas beyond a country's shores (for example, to protect Sea lane, 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 broa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian War Memorial
The Australian War Memorial is Australia's national memorial to the members of its armed forces and supporting organisations who have died or participated in wars involving the Commonwealth of Australia and some conflicts involving personnel from the Australian colonies prior to Federation. Opened in 1941, the memorial includes an extensive national military museum. The memorial is located in Australia's capital, Canberra, in the suburb of . The Australian War Memorial forms the north terminus of the city's ceremonial land axis, which stretches from Parliament House on Capital Hill along a line passing through the summit of the cone-shaped Mount Ainslie to the northeast. No continuous roadway links the two points, but there is a clear line of sight from the front balcony of Parliament House to the war memorial, and from the front steps of the war memorial back to Parliament House. The Australian War Memorial consists of three parts: the Commemorative Area (shrine) i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8"/55 Caliber Gun
The 8"/55 caliber gun (spoken "eight-inch-fifty-five-caliber") formed the main battery of United States Navy heavy cruisers and two early aircraft carriers. United States naval gun terminology indicates the gun barrel had an internal diameter of 8 inches (203 mm), and the barrel was 55 calibers long (barrel length is 8 inch × 55 = 440 inches or 36.6 feet or 11 meters). Mark 9 These built-up guns weighed about 30 tons including a liner, tube, jacket, and five hoops. A down-swing Welin breech block was closed by compressed air from the gas ejector system. Loading with two silk bags each containing of smokeless powder gave a projectile a velocity of 2800 feet per second (853 m/s). Range was 18 miles at the maximum elevation of 41 degrees. Mark 12 These simplified built-up guns eliminated hoops to reduce weight to 17 tons. The breech mechanism was similar and loading two silk bags each containing 43 pounds (20 kg) of smokeless powder gave a 335-pound (152&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
20 Cm/50 3rd Year Type Naval Gun
formed the main battery of Japan's World War II heavy cruisers. These guns were also mounted on two early aircraft carriers. The typical installation was ten 20 cm/50 guns; although s carried eight while and -class cruisers carried six. After modernization, carried only six. These were built-up guns with an inner A tube, encased by a second tube, encased by a full length jacket. Early guns were partially wire-wound, but later guns dispensed with the wire winding. The guns were breech loaded with two cloth bags of smokeless powder. Third year type refers to the Welin breech block on this gun. Breech block design began in 1914 AD, the third year of the ''Taishō'' period. This breech block design was also used on Japanese 41 cm (16.1 inch), 15.5 cm (6 inch), 14 cm (5.5 inch), 12.7 cm (5 inch), and 12 cm (4.7 inch) naval guns. 1 GÔ (Mark I) guns The first model of this gun used a powder charge to fire projectiles weighing at a velocity of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
203 Mm /53 Italian Naval Gun
The 203 mm/53 Ansaldo was the main battery gun of Italy's most modern Washington Naval Treaty heavy cruisers. This treaty allowed ships of not more than 10,000 tons standard displacement, and with guns no larger than 8 inches (203 mm), to be excluded from total tonnage limitations on a nation's capital ships. Description These built-up guns consisted of a liner, A tube, and full-length jacket with a hydraulically operated Welin breech block. Each heavy cruiser carried 8 guns mounted in 4 twin turrets with maximum elevation of 45° . The 181 tonne turrets mounted both guns in a common cradle with centerlines only one meter apart. This mounting practice was chosen to reduce the weight, but mutual interference increased dispersion during salvo fire. Each gun could fire approximately four rounds per minute. The Model 1929 guns aboard ''Bolzano'' were mounted on a turret with thinner armour than the previous models, to further reduce its weight. Ammunition Prop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
203mm/50 Modèle 1924 Gun
With the signing of the Washington Naval Treaty of 1922 the French found themselves with no 8 inch naval gun for mounting on the designated 10,000 ton cruiser. In order to maintain their position as a major Naval Power they decided to develop one from scratch. Starting in 1924 they developed the 203mm/50 Modèle 1924 naval gun for use on the seven Treaty Class cruisers of the Marine Nationale. It was also modified for use on the ''Surcouf'' a French submarine built in the 1930s. The gun entered service on the ''Duquesne'' in 1928. The gun would remain in active service until 1948 when the last cruiser was placed in reserve. The gun was finally removed for inventory when the last treaty cruiser was towed for scrap in 1976. Design and Description The 203 mm/50 A new gun was designed starting in 1924 with a simplistic constructed of a thick auto-fretted A tube, with a shrunk jacket and breach ring. The gun was actually bored to with a length of 50 calibres. The breach was seal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dover
Dover () is a town and major ferry port in Kent, South East England. It faces France across the Strait of Dover, the narrowest part of the English Channel at from Cap Gris Nez in France. It lies south-east of Canterbury and east of Maidstone. The town is the administrative centre of the Dover District and home of the Port of Dover. Archaeological finds have revealed that the area has always been a focus for peoples entering and leaving Great Britain, Britain. The name derives from the River Dour that flows through it. In recent times the town has undergone transformations with a high-speed rail link to London, new retail in town with St James' area opened in 2018, and a revamped promenade and beachfront. This followed in 2019, with a new 500m Pier to the west of the Harbour, and new Marina unveiled as part of a £330m investment in the area. It has also been a point of destination for many illegal migrant crossings during the English Channel migrant crossings (2018-present) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Folkestone
Folkestone ( ) is a port town on the English Channel, in Kent, south-east England. The town lies on the southern edge of the North Downs at a valley between two cliffs. It was an important harbour and shipping port for most of the 19th and 20th centuries. There has been a settlement in this location since the Mesolithic era. A nunnery was founded by Eanswith, granddaughter of Æthelberht of Kent in the 7th century, who is still commemorated as part of the town's culture. During the 13th century it subsequently developed into a seaport and the harbour developed during the early 19th century to provide defence against a French invasion. Folkestone expanded further west after the arrival of the railway in 1843 as an elegant coastal resort, thanks to the investment of the Earl of Radnor under the urban plan of Decimus Burton. In its heyday - during the Edwardian era - Folkestone was considered the most fashionable resort of the time, visited by royalties - amongst them Queen Victo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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