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Mark IV Tank
The Mark IV (pronounced ''Mark four'') was a British tank of the First World War. Introduced in 1917, it benefited from significant developments of the Mark I tank (the intervening designs being small batches used for training). The main improvements were in armour, the re-siting of the fuel tank and ease of transport. A total of 1,220 Mk IV were built: 420 "Males", 595 "Females" and 205 Tank Tenders (unarmed vehicles used to carry supplies), which made it the most numerous British tank of the war. The Mark IV was first used in mid 1917 at the Battle of Messines Ridge. It remained in British service until the end of the war, and a small number served briefly with other combatants afterwards. Development The director of the Tank Supply Department, Albert Gerald Stern, first intended to fit the Mark IV with a new engine and transmission. Production of battle tanks was halted until the new design was ready, necessitating the use of the Mark II and III as interim training tanks. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tank
A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and good battlefield mobility provided by tracks and a powerful engine; usually their main armament is mounted in a turret. They are a mainstay of modern 20th and 21st century ground forces and a key part of combined arms combat. Modern tanks are versatile mobile land weapons platforms whose main armament is a large-caliber tank gun mounted in a rotating gun turret, supplemented by machine guns or other ranged weapons such as anti-tank guided missiles or rocket launchers. They have heavy vehicle armour which provides protection for the crew, the vehicle's munition storage, fuel tank and propulsion systems. The use of tracks rather than wheels provides improved operational mobility which allows the tank to overcome rugged terrain and adverse conditions such as mud and ice/snow better than wheeled vehicles, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark I Tank
British heavy tanks were a series of related armoured fighting vehicles developed by the UK during the First World War. The Mark I was the world's first tank, a tracked, armed, and armoured vehicle, to enter combat. The name "tank" was initially a code name to maintain secrecy and disguise its true purpose by making it appear to be a water transport vehicle for bringing water to the troops at the front line. The tank was developed in 1915 to break the stalemate of trench warfare. It could survive the machine gun and small-arms fire in "no man's land", travel over difficult terrain, crush barbed wire, and cross trenches to assault fortified enemy positions with powerful armament. Tanks also carried supplies and troops. British heavy tanks are distinguished by an unusual rhomboidal shape with a high climbing face of the track, designed to cross the wide and deep trenches prevalent on the battlefields of the Western Front. Due to the height necessary for this shape, an armed turr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unditching Beam
__NOTOC__ An unditching beam is a device that is used to aid in the recovery of armoured fighting vehicles when they become bogged or "ditched". The device is a beam that is attached to the continuous tracks that provides additional traction for the vehicle to extricate itself from a ditch or from boggy conditions. The unditching beam was first introduced into service during the First World War with the British Mark IV tank. It is believed the device was designed by Philip Johnson who was serving as an engineering officer at the British Army's depot at Érin, originally the device weighed and was constructed of a solid beam of oak with two large steel plates bolted to two sides to provide protection. When not in use it was stowed on two rails mounted on the roof of the tank that ran the entire length of the vehicle, and when employed the beam was chained to the tank's tracks, giving the vehicle something firm to drive over. Unditching beams remain a commonly carried standard anc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fascines
A fascine is a rough bundle of brushwood or other material used for strengthening an earthen structure, or making a path across uneven or wet terrain. Typical uses are protecting the banks of streams from erosion, covering marshy ground and so on. In war they have often been used to help armiesin modern times, especially tanks and other vehiclescross trenches, valleys, marshes, muddy or uneven terrain, etc. Early military use Fascine bundles were used defensively for revetting (shoring up) trenches or ramparts, especially around artillery batteries, or offensively to fill in ditches and cross obstacles on a battlefield. Fascine bridges are a regularly attested feature of Roman military engineering and would have been widespread in the ancient world due to their usefulness and ease of construction. During the Siege of Alesia, the Gauls repeatedly attempted to repel the invading Romans by filling their trenches in with fascines and covering their traps, to support their counter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Cambrai (1917)
The Battle of Cambrai (Battle of Cambrai, 1917, First Battle of Cambrai and ''Schlacht von Cambrai'') was a British attack in the First World War, followed by the biggest German counter-attack against the British Expeditionary Force (BEF) since 1914. The town of Cambrai, in the département of Nord, in France, was an important supply centre for the German (known to the British as the Hindenburg Line) and capture of the town and the nearby Bourlon Ridge would threaten the rear of the German line to the north. Major General Henry Tudor, Commander, Royal Artillery (CRA), of the 9th (Scottish) Division, advocated the use of new artillery-infantry tactics on his sector of the front. During preparations, J. F. C. Fuller, a staff officer with the Tank Corps, looked for places to use tanks for raids. General Julian Byng, commander of the Third Army, decided to combine both plans. The French and British armies had used tanks en masse earlier in 1917, although to considerably less ef ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hotchkiss M1909 Benét–Mercié Machine Gun
The Hotchkiss M1909 machine gun was a light machine gun of the early 20th century, developed and built by Hotchkiss et Cie. It was also known as the Hotchkiss Mark I, Hotchkiss Portative and M1909 Benét–Mercié. Design It was based on a design by Austrian nobleman and Army officer, Adolf Odkolek von Újezd, who sold the manufacturing rights to Hotchkiss in 1893. Several improved versions were designed by Hotchkiss's American manager, Laurence Benét and his French assistant, Henri Mercié. It was gas-operated and air-cooled, had a maximum range of and weighed 12 kg (27 lb). Initial models were fed by a 30-round feed strip but later models could be either strip-fed or belt-fed. The U.S. types had a bipod, while some others used a small tripod. This tripod, fitted under the firearm, could be moved with the weapon, and thus was very different from larger, heavier tripods of the period. Manufacture Production began at the Hotchkiss factory in Saint-Denis, Paris, but i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magazine (firearms)
A magazine is an ammunition storage and feeding device for a repeating firearm, either integral within the gun (internal/fixed magazine) or externally attached (detachable magazine). The magazine functions by holding several cartridges within itself and sequentially pushing each one into a position where it may be readily loaded into the barrel chamber by the firearm's moving action. The detachable magazine is sometimes colloquially referred to as a " clip", although this is technically inaccurate since a clip is actually an accessory device used to help load ammunition into a magazine. Magazines come in many shapes and sizes, from tubular magazines on lever-action and pump-action firearms that may tandemly hold several rounds, to detachable box and drum magazines for automatic rifles and light machine guns that may hold more than one hundred rounds. Various jurisdictions ban what they define as "high-capacity magazines". Nomenclature With the increased use of semi-au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sponson
Sponsons are projections extending from the sides of land vehicles, aircraft or watercraft to provide protection, stability, storage locations, mounting points for weapons or other devices, or equipment housing. Watercraft On watercraft, a sponson is a projection that extends outward (usually from the hull, but sometimes other parts of the vessel) to improve stability while floating, or to act as a securing point for other equipment. Vessels with unstable body shapes or unevenly distributed weight are likely to feature sponsons to help prevent capsizing or other instabilities. On many vessels, these projections from the main body of the vessel can be attached and removed quickly and fairly easily. Canoes and kayaks sometimes feature sponson attachments as well, for stability in rough waters. These differ from outriggers, which extend a significant distance away from the body of the craft, and are employed on craft designed for open waters. A sponson's terminus is close to the cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark IV Lodestar III Inside View 02
Mark may refer to: Currency * Bosnia and Herzegovina convertible mark, the currency of Bosnia and Herzegovina * East German mark, the currency of the German Democratic Republic * Estonian mark, the currency of Estonia between 1918 and 1927 * Finnish markka ( sv, finsk mark, links=no), the currency of Finland from 1860 until 28 February 2002 * Mark (currency), a currency or unit of account in many nations * Polish mark ( pl, marka polska, links=no), the currency of the Kingdom of Poland and of the Republic of Poland between 1917 and 1924 German * Deutsche Mark, the official currency of West Germany from 1948 until 1990 and later the unified Germany from 1990 until 2002 * German gold mark, the currency used in the German Empire from 1873 to 1914 * German Papiermark, the German currency from 4 August 1914 * German rentenmark, a currency issued on 15 November 1923 to stop the hyperinflation of 1922 and 1923 in Weimar Germany * Lodz Ghetto mark, a special currency for Lodz Ghetto. * R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Gerald Stern
Sir Albert Gerald Stern (24 September 1878 – 2 January 1966) was a banker who became the Secretary of the Landship Committee during World War I, where his organisational ability assisted the Committee in creating the first British tank. During the war he came into conflict with the War Office but had the advantage of direct access to the Prime Minister, and no civil service career to protect. He was removed from direct involvement in the production of tanks and sidelined.Glanfield, J ''The Devil's Chariots – The birth and secret battles of the first tanks'' Sutton Publishing, Stroud 2001 Early life Born the second son of James Julius Stern, a part of the Jewish European Stern Banking dynasty, Albert Stern was educated at Eton and Christ Church, Oxford before entering the family business, becoming known in the City of London as "The Holy Terror". Although he negotiated a large loan to the sultan of Morocco, Albert Stern had no real flair as a merchant banker. At the outbrea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Messines Ridge
The Battle of Messines (7–14 June 1917) was an attack by the British Second Army (United Kingdom), Second Army (General (United Kingdom), General Sir Herbert Plumer, 1st Viscount Plumer, Herbert Plumer), on the Western Front (World War I), Western Front, near the village of Messines (now Mesen) in West Flanders, Belgium, during the First World War. The Nivelle Offensive in April and May had failed to achieve its more grandiose aims, had led to the 1917 French Army mutinies, demoralisation of French troops and confounded the Anglo-French strategy for 1917. The attack forced the Germans to move reserves to Flanders from the Arras and Aisne fronts, relieving pressure on the French. The British tactical objective was to capture the German defences on the ridge, which ran from Ploegsteert Wood (Plugstreet to the British) in the south, through Messines and Wytschaete to Mt Sorrel, depriving the German 4th Army (German Empire), 4th Army of the high ground. The ridge gave commanding ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
