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HMS Sultan (1870)
HMS ''Sultan'' was a broadside ironclad of the Royal Navy of the Victorian era, who carried her main armament in a central box battery. She was named for Sultan Abdulaziz of the Ottoman Empire, who was visiting England when she was laid down. Abdulaziz cultivated good relations with the Second French Empire and the British. In 1867 he was the first Ottoman sultan to visit Western Europe; his trip included a visit to England, where he was made a Knight of the Garter by Queen Victoria and shown a Royal Navy Fleet Review, with Isma'il Pasha of Egypt. Design With the exception of some small warships designed only for harbour defence, every ironclad warship so far completed, starting from , had mounted their main armament in broadside batteries. Although the turret-armed ships and were building, it was decided by the Board of Admiralty that, pending results from these two experimental ships, ''Sultan'' would carry her artillery in a centrally-placed box battery. The design of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russo-Turkish War (1877–1878)
The Russo-Turkish War of 1877–1878 ( tr, 93 Harbi, lit=War of ’93, named for the year 1293 in the Islamic calendar; russian: Русско-турецкая война, Russko-turetskaya voyna, "Russian–Turkish war") was a conflict between the Ottoman Empire and a coalition led by the Russian Empire, and including Bulgaria, Romania, Serbia, and Montenegro. Fought in the Balkans and in the Caucasus, it originated in emerging 19th century Balkan nationalism. Additional factors included the Russian goals of recovering territorial losses endured during the Crimean War of 1853–56, re-establishing itself in the Black Sea and supporting the political movement attempting to free Balkan nations from the Ottoman Empire. The Russian-led coalition won the war, pushing the Ottomans back all the way to the gates of Constantinople, leading to the intervention of the western European great powers. As a result, Russia succeeded in claiming provinces in the Caucasus, namely Kars and Batum, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Engineer (UK Magazine)
''The Engineer'' is a London-based monthly magazine and website covering the latest developments and business news in engineering and technology in the UK and internationally. History and description ''The Engineer'' was founded in January 1856. It was established by Edward Charles Healey, an entrepreneur and engineering enthusiast with financial interests in the railways whose friends included Robert Stephenson and Isambard Kingdom Brunel. The journal was created as a technical magazine for engineers. ''The Engineer'' began covering engineering including inventions and patents during a high point of British economic manufacturing power. In the 19th century it also published stock prices of raw materials. Together with the contemporary ''Engineering'' journal the work is considered a valuable historical resource for the study of British economic history. On 10 July 2012 the magazine announced its final print edition, the editor Jon Excell citing "increasing distribution and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teak
Teak (''Tectona grandis'') is a tropical hardwood tree species in the family Lamiaceae. It is a large, deciduous tree that occurs in mixed hardwood forests. ''Tectona grandis'' has small, fragrant white flowers arranged in dense clusters (panicles) at the end of the branches. These flowers contain both types of reproductive organs ( perfect flowers). The large, papery leaves of teak trees are often hairy on the lower surface. Teak wood has a leather-like smell when it is freshly milled and is particularly valued for its durability and water resistance. The wood is used for boat building, exterior construction, veneer, furniture, carving, turnings, and other small wood projects. ''Tectona grandis'' is native to south and southeast Asia, mainly Bangladesh, India, Indonesia, Malaysia, Myanmar, Thailand and Sri Lanka, but is naturalised and cultivated in many countries in Africa and the Caribbean. Myanmar's teak forests account for nearly half of the world's naturally occurring teak. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QF 3-pounder Hotchkiss
The QF 3-pounder Hotchkiss or in French use Canon Hotchkiss à tir rapide de 47 mm were a family of long-lived light naval guns introduced in 1886 to defend against new, small and fast vessels such as torpedo boats and later submarines. There were many variants produced, often under license which ranged in length from 32 to 50 calibers but 40 caliber was the most common version. They were widely used by the navies of a number of nations and often used by both sides in a conflict. They were also used ashore as coastal defense guns and later as an anti-aircraft gun, whether on improvised or specialized HA/LA mounts. Operational history French service The French Navy used two versions of the Hotchkiss 3-pounder: the short-barreled M1885 and the long-barreled M1902, which had a larger muzzle velocity than its predecessor. The French L/40 M1885 and the British QF 3-pounder were largely the same gun. Like the British who paired their 3-pounders with the larger QF 6-poun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QF 6-pounder Hotchkiss
The Ordnance QF Hotchkiss 6 pounder gun Mk I and Mk II or QF 6 pounder 8 cwt were a family of long-lived light naval guns introduced in 1885 to defend against new, small and fast vessels such as torpedo boats and later submarines. There were many variants produced, often under license which ranged in length from 40 to 58 calibers, but 40 caliber was the most common version. 6-pounders were widely used by the navies of a number of nations and often used by both sides in a conflict. Due to advances in torpedo delivery and performance, 6-pounder guns were rapidly made obsolete and were replaced with larger guns aboard most larger warships. This led to their being used ashore during World War I as coastal defense guns, the first tank guns and as anti-aircraft guns, whether on improvised or specialized HA/LA mounts. During World War II 6-pounder guns were put back in service to arm small warships and as coastal defense guns. The last ships to carry 6-pounders were the Aegir-cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QF 6 Pounder Nordenfelt
The QF 6 pounder Nordenfelt was a light 57 mm naval gun and coast defence gun of the late 19th century used by many countries. Note that this gun should not be confused with the short-barreled 57 mm Cockerill-Nordenfelt "Canon de caponnière" or fortification gun, which was used to arm the German A7V tank in World War I. Nordenfelt guns can be visually differentiated from equivalent and similar Hotchkiss guns by having slimmer barrels than the Hotchkiss, hence the Nordenfelt was considerably lighter. United Kingdom The UK adopted a 42-calibre version as Ordnance QF 6-pounder Nordenfelt British forces traditionally denoted smaller ordnance by the weight of its standard projectile, in this case . Mk I, Mk II, Mk III. United Kingdom Naval service They were originally mounted from 1885 onwards for use against the new (steam-driven) torpedo boats which started to enter service in the late 1870s. The Nordenfelt gun was adopted at the same time as the very similar QF 6 pou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QF 4
QF may stand for: * Qantas, an airline of Australia (IATA code QF) * Qatar Foundation, a private, chartered, non-profit organization in the state of Qatar * Quality factor, in physics and engineering, a measure of the "quality" of a resonant system * Quick-firing gun, a sort of artillery piece * Quiverfull, a movement of Christians who eschew all forms of birth control * A gun breech that uses metallic cartridges (see British ordnance terms#QF) * Quds Force The Quds Force ( fa, نیروی قدس, niru-ye qods, Jerusalem Force) is one of five branches of Iran's Islamic Revolutionary Guard Corps (IRGC) specializing in unconventional warfare and military intelligence operations. U.S. Army's Iraq War ... an expeditionary warfare unit of IRGC {{disambig fr:QF ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draft (boiler)
The difference between atmospheric pressure and the pressure existing in the furnace or flue gas passage of a boiler is termed as draft. Draft can also be referred to as the difference in pressure in the combustion chamber area which results in the motion of the flue gases and the air flow. Types of draft Drafts are produced by the rising combustion gases in the stack, flue, or by mechanical means. For example, a boiler can be put into four categories: natural, induced, balanced, and forced. *Natural draft: When air or flue gases flow due to the difference in density of the hot flue gases and cooler ambient gases. The difference in density creates a pressure differential that moves the hotter flue gases into the cooler surroundings. * Forced draft: When air or flue gases are maintained above atmospheric pressure. Normally it is done with the help of a forced draft fan. * Induced draft: When air or flue gases flow under the effect of a gradually decreasing pressure below atmospheric p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS Temeraire (1876)
HMS ''Temeraire'' was an ironclad battleship of the Victorian Royal Navy which was unique in that she carried her main armament partly in the traditional broadside battery, and partly in barbettes on the upper deck. Design and construction Propulsion ''Temeraire'' was equipped with two Humpreys & Tennant 2-cyl. steam engines, each driving one shaft and developing a total of 7,697 hp (5,661 kW), with which she reached a top speed of 14.65 knots (16.86 mph). Steam was supplied by twelve boilers. The ship could carry a maximum of 629 t. coal. ''Temeraire'' was rigged as a two-masted barque and had a sail area of 25,000 sq ft. The ship's crew consisted of 580 officers and ratings.Conway's All the World's Fighting Ships 1860-1905 p 18. Armament Her armament was partly conventional, being deployed on the broadside, and partly experimental; she was the first British ship to be equipped with guns in barbettes located on the midline on the upper deck. Indeed, she was t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gozo
Gozo (, ), Maltese: ''Għawdex'' () and in antiquity known as Gaulos ( xpu, 𐤂𐤅𐤋, ; grc, Γαῦλος, Gaúlos), is an island in the Maltese archipelago in the Mediterranean Sea. The island is part of the Republic of Malta. After the island of Malta itself, it is the second-largest island in the archipelago. As of 2021, the island has a population of around 31,232 (out of Malta's total 443,227), and its inhabitants are known as Gozitans ( mt, Għawdxin). It is rich in historic locations such as the Ġgantija temples, which, along with the other Megalithic Temples of Malta, are amongst the world's oldest free-standing structures. The island is rural in character and less developed than the island of Malta. Gozo is known for its scenic hills, which are featured on its coat of arms. The Azure Window, a natural limestone arch, was a remarkable geological feature until its collapse on March 8, 2017. The island has other notable natural features, including the Inland Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malta
Malta ( , , ), officially the Republic of Malta ( mt, Repubblika ta' Malta ), is an island country in the Mediterranean Sea. It consists of an archipelago, between Italy and Libya, and is often considered a part of Southern Europe. It lies south of Sicily (Italy), east of Tunisia, and north of Libya. The official languages are Maltese and English, and 66% of the current Maltese population is at least conversational in the Italian language. Malta has been inhabited since approximately 5900 BC. Its location in the centre of the Mediterranean has historically given it great strategic importance as a naval base, with a succession of powers having contested and ruled the islands, including the Phoenicians and Carthaginians, Romans, Greeks, Arabs, Normans, Aragonese, Knights of St. John, French, and British, amongst others. With a population of about 516,000 over an area of , Malta is the world's tenth-smallest country in area and fourth most densely populated sovereign cou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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