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RML 6.6-inch Howitzer
The RML 6.6 inch howitzer was a British Rifled, Muzzle Loading (RML) Howitzer manufactured in England in the 19th century, which fired a projectile weighing approximately . It was used in siege batteries and in fortifications. Design and manufacture The Mark I gun consisted of an 'A' tube of toughened steel, over which was shrunk a 'B' tube of wrought iron and jacket. A cascable was fitted at the end. The Mark II gun was of steel throughout. A vertical hardened copper vent was fitted horizontally at the breech end of the Howitzer. The howitzer was rifled on the "Polygroove" pattern with 20 grooves and projectiles had " Automatic gas-checks" attached to the base which engaged the grooves. A horizontal plane was machined on the upper surface of the Howitzer, for use with a clinometer, enabling it to be elevated up to 35 degrees. This enabled the gun to be sighted for indirect, or direct fire. Ammunition Guns were fired using a silk bag containing a black powder propellant. They ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RML 6
RML may refer to: *RML Group, a motorsports and high performance engineering company *RML 380Z, an 8-bit computer built in Britain *Ratmalana Airport (IATA: RML), near Colombo, Sri Lanka *Reuters Market Light, a phone service to provide Indian farmers with timely information *Revised Marriage Law, a 1980 revision of the New Marriage Law in China *Riemann Musiklexikon, a music encyclopedia *Rifled muzzle loader, a type of gun common in the 19th century *AEC Routemaster, a type of double-decker bus *Rocket Madsen Space Lab (RML Spacelab), Copenhagen, Denmark *Rocky Mountain Laboratories, a research institute in Montana, United States *Roddenbery Memorial Library, in Cairo, Georgia, United States *Royal Mail Lines, once a major shipping company, the successor to the Royal Mail Steam Packet Company The Royal Mail Steam Packet Company was a British shipping company founded in London in 1839 by a Scot, James MacQueen. The line's motto was ''Per Mare Ubique'' (everywhere by sea). Afte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth Platforms For Howitzers, Fort Nelson
Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surface is made up of the ocean, dwarfing Earth's polar ice, lakes, and rivers. The remaining 29% of Earth's surface is land, consisting of continents and islands. Earth's surface layer is formed of several slowly moving tectonic plates, which interact to produce mountain ranges, volcanoes, and earthquakes. Earth's liquid outer core generates the magnetic field that shapes the magnetosphere of the Earth, deflecting destructive solar winds. The atmosphere of the Earth consists mostly of nitrogen and oxygen. Greenhouse gases in the atmosphere like carbon dioxide (CO2) trap a part of the energy from the Sun close to the surface. Water vapor is widely present in the atmosphere and forms clouds that cover most of the planet. More solar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Howitzers
A howitzer () is a long-ranged weapon, falling between a cannon (also known as an Artillery, artillery gun in the United States), which fires shells at flat trajectories, and a Mortar (weapon), mortar, which fires at high angles of ascent and descent. Howitzers, like other artillery equipment, are usually organized in a group called a Artillery battery, battery. Howitzers, together with long-barreled guns, mortars, and rocket artillery, are the four basic types of modern artillery. Mortars fire at angles of elevation greater than 45°, and are useful for mountain warfare because the projectile could go over obstacles. Cannons fire at low angles of elevation (<45°), and the projectile lands much faster at its target than it would in the case of a mortar. But the cannon is not useful if there is an obstacle like a hill/wall in front of its target. Etymology The English word ''howitzer'' comes from the Czech word , from , 'crowd', and is in turn a borrowing ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artillery Of The United Kingdom
Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and led to heavy, fairly immobile siege engines. As technology improved, lighter, more mobile field artillery cannons developed for battlefield use. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility generally providing the largest share of an army's total firepower. Originally, the word "artillery" referred to any group of soldiers primarily armed with some form of manufactured weapon or armor. Since the introduction of gunpowder and cannon, "artillery" has largely meant cannons, and in contemporary usage, usually refers to shell-firing guns, howitzers, and mortars (collectively called ''barrel artillery'', ''cannon artillery'', ''gun artillery'', or - a layman ter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Howitzers
Howitzers are one of two primary types of field artillery. Historically, howitzers fired a heavy shell in a high-trajectory from a relatively short barrel and their range was limited but they were slightly more mobile than similar size field guns. Since the end of World War II, howitzers have gained longer barrels and hence increased range to become gun-howitzers. Towed howitzers Self-propelled howitzers Fixed howitzers {, class="wikitable sortable" style="font-size:100%;" ! width="12%", Caliber (mm) ! width="44%", Weapon name ! width="22%", Country of origin ! width="22%", Usage , - , 406 , , 16-inch howitzer M1920 , , , , World War II , - , 420 , , 42 cm Gamma-Gerät , , / {{flag, Nazi Germany , , World War I / World War II , - Howitzer A howitzer () is a long-ranged weapon, falling between a cannon (also known as an Artillery, artillery gun in the United States), which fires shells at flat trajectories, and a Mortar (weapon), mortar, which fires at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Widley
Fort Widley is one of the forts built on top of Portsdown Hill between 1860 and 1868 on the recommendation of the Royal Commission on the Defence of the United Kingdom. It was designed, along with the other Palmerston Forts atop Portsdown, to protect Portsmouth from attack from the rear. Design and construction Fort Widley was a polygonal Fort designed by William Crossman, an officer of the Royal Engineers, who was part of the staff of the Inspector General of Fortifications at the War Office. The fort was built up from chalk, with red brick and local flint being used for buildings and revetment to the large dry ditch which was also dug at the same time. Armament was fitted into three different categories - the main armament which was mounted on a semi-circular rampart, high angle armament provided by 13-inch mortars, mounted in two protected mortar batteries and close range armament, mounted in one full and two demi-caponiers. Barracks accommodation was also provided for bot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mortar (weapon)
A mortar is usually a simple, lightweight, man-portable, muzzle-loaded weapon, consisting of a smooth-bore (although some models use a rifled barrel) metal tube fixed to a base plate (to spread out the recoil) with a lightweight bipod mount and a sight. They launch explosive shells (technically called bombs) in high-arcing ballistic trajectories. Mortars are typically used as indirect fire weapons for close fire support with a variety of ammunition. History Mortars have been used for hundreds of years. The earliest mortars were used in Korea in a 1413 naval battle when Korean gunsmiths developed the ''wan'gu'' (gourd-shaped mortar) (완구, 碗口). The earliest version of the ''wan'gu'' dates back to 1407. Choi Hae-san (최해산, 崔海山) (1380–1443), the son of Choe Mu-seon (최무선, 崔茂宣) (1325–1395), is generally credited with inventing the ''wan'gu''. In the Ming dynasty, general Qi Jiguang recorded the use of a mini cannon called the Hu dun pao that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Artillery
The Royal Regiment of Artillery, commonly referred to as the Royal Artillery (RA) and colloquially known as "The Gunners", is one of two regiments that make up the artillery arm of the British Army. The Royal Regiment of Artillery comprises thirteen Regular Army regiments, King's Troop, Royal Horse Artillery, the King's Troop Royal Horse Artillery and five Army Reserve (United Kingdom), Army Reserve regiments. History Formation to 1799 Artillery was used by the English army as early as the Battle of Crécy in 1346, while Henry VIII established it as a semi-permanent function in the 16th century. Until the early 18th century, the majority of British regiments were raised for specific campaigns and disbanded on completion. An exception were gunners based at the Tower of London, Portsmouth and other forts around Britain, who were controlled by the Ordnance Office and stored and maintained equipment and provided personnel for field artillery Artillery is a class of heav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Case Shot
Canister shot is a kind of anti-personnel artillery ammunition. Canister shot has been used since the advent of gunpowder-firing artillery in Western armies. However, canister shot saw particularly frequent use on land and at sea in the various wars of the 18th and 19th century. Canister is still used today in modern artillery. Description Canister shot consists of a closed metal cylinder typically loosely filled with round lead or iron balls packed with sawdust to add more solidity and cohesion to the mass and to prevent the balls from crowding each other when the round was fired. The canister itself was usually made of tin, often dipped in a lacquer of beeswax diluted with turpentine to prevent corrosion of the metal. Iron was substituted for tin for larger-caliber guns. The ends of the canister were closed with wooden or metal disks. A cloth cartridge bag containing the round's gunpowder used to fire the canister from the gun barrel could be attached to the back of the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Howitzer
A howitzer () is a long-ranged weapon, falling between a cannon (also known as an Artillery, artillery gun in the United States), which fires shells at flat trajectories, and a Mortar (weapon), mortar, which fires at high angles of ascent and descent. Howitzers, like other artillery equipment, are usually organized in a group called a Artillery battery, battery. Howitzers, together with long-barreled guns, mortars, and rocket artillery, are the four basic types of modern artillery. Mortars fire at angles of elevation greater than 45°, and are useful for mountain warfare because the projectile could go over obstacles. Cannons fire at low angles of elevation (<45°), and the projectile lands much faster at its target than it would in the case of a mortar. But the cannon is not useful if there is an obstacle like a hill/wall in front of its target. Etymology The English word ''howitzer'' comes from the Czech word , from , 'crowd', and is in turn a borrowing ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrapnel Shell
Shrapnel shells were anti-personnel artillery munitions which carried many individual bullets close to a target area and then ejected them to allow them to continue along the shell's trajectory and strike targets individually. They relied almost entirely on the shell's velocity for their lethality. The munition has been obsolete since the end of World War I for anti-personnel use; high-explosive shells superseded it for that role. The functioning and principles behind Shrapnel shells are fundamentally different from high-explosive shell fragmentation. Shrapnel is named after Lieutenant-General Henry Shrapnel (1761–1842), a British artillery officer, whose experiments, initially conducted on his own time and at his own expense, culminated in the design and development of a new type of artillery shell. Usage of term "shrapnel" has changed over time to also refer to fragmentation of the casing of shells and bombs. This is its most common modern usage, which strays from the or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas-checks In British RML Heavy Guns
Gas-checks were attachments to ammunition that revolutionised the performance of RML heavy guns. The first generation of RML heavy guns began entering service in about 1865. They all had Woolwich rifling and relied on studs on the projectiles for rotation. Gas-checks were first introduced in 1878 or soon after. They significantly reduced wear on the guns while also increasing their range and accuracy. Before long, studless ammunition was being manufactured for these guns, using gas-checks for projectile rotation. Gas-checks also facilitated a switch to the second generation of RML guns which used polygroove rifling and only supported studless ammunition. Introduction The first RML heavy guns were introduced into British service in about 1865. By 1878, 11 models of Woolwich rifled guns had been introduced, ranging from 7 inches to 12.5 inches. Unfortunately, Woolwich rifling had a major defect, namely, that hot powder gas escaping around the ammunition ("Windage Windage is a term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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