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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. Armour was increased to resist the German armour-piercing bullet, the drivetrain was strengthened and side turrets were constructed so that they could be swung inside, enabling travel by train (Previously they had to be separately transported to the battlefield by truck). A total of 1,220 Mark IVs 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 T ... [...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 Érin () is a commune in the Pas-de-Calais department in the Hauts-de-France region in France. Situation Érin is a small village on the south side of the small river, the Ternoise which flows through St.Pol-sur-Ternoise and joins the River Ca ...; 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 ... [...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 battlefield mobility provided by tracks and a powerful engine; their main armament is often mounted within 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- calibre 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 wheele ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hotchkiss M1909 Benét–Mercié Machine Gun
Hotchkiss may refer to: Places Canada * Hotchkiss, Alberta * Hotchkiss, Calgary United States * Hotchkiss, Colorado * Hotchkiss, Virginia * Hotchkiss, West Virginia Business and industry * Automobiles Hotchkiss, a French automobile manufacturer * Hotchkiss et Cie, a French armaments manufacturer * Hotchkiss Ordnance Company, an English armaments manufacturer Military * Hotchkiss H35, a French tank of World War II * Hotchkiss gun ** Hotchkiss machine gun, including a list of variants * Hotchkiss M201, a French light transport vehicle Other uses * Hotchkiss (surname) * Hotchkiss drive, a form of automobile power transmission and suspension. * Hotchkiss Bicycle Railroad in Smithville, Burlington County, New Jersey, U.S. * Hotchkiss School, a private school in Lakeville, Connecticut, U.S. * Rebecca Hotchkiss, a character on the NBC/DirecTV daytime drama ''Passions'' See also * Hodgkin, a surname {{disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magazine (firearms)
A magazine, often simply called a mag, 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 cartridge (firearms), cartridges within itself and sequentially pushing each one into a position where it may be readily loaded into the gun barrel, barrel chamber (firearms), chamber by the firearm's moving action (firearms), action. The detachable magazine is sometimes colloquially referred to as a "clip (ammunition), clip", although this is technically inaccurate since a clip is actually an accessory device used to help load ammunition into a magazine or cylinder. Magazines come in many shapes and sizes, from integral tubular magazines on lever-action and pump-action rifles and shotguns, that may hold more than five rounds, to detachable box magazines and drum magazines for automatic rifles and light machine guns, that may h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arc Of Fire
The field of fire or zone of fire (ZF) of a weapon, or group of weapons, is the area around it that can easily and effectively be reached by projectiles from a given position. Field of fire The term originally came from the ''field of fire'' in front of fort A fortification (also called a fort, fortress, fastness, or stronghold) is a military construction designed for the defense of territories in warfare, and is used to establish rule in a region during peacetime. The term is derived from La ...s (and similar defensive positions), cleared so there was no shelter for an approaching enemy. Sector of fire A similar term sector of fire is used to describe the area into which each gunner or group are ''allowed'' to fire. The boundaries are assigned by the commanding officer and thus can be arbitrary, even three-dimensional (a rifleman attacking a building might be assigned a set of windows to target). Arc of fire The arc of fire of a mounted gun is a horizontal ("Traverse ... [...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, Instantaneous stability, 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 outrigger boat, outriggers, which extend a significant distance away from the body of the craft, and are employed on craft designed for open waters. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark IV Lodestar III Inside View 02
Mark may refer to: In the Bible * Mark the Evangelist (5–68), traditionally ascribed author of the Gospel of Mark * Gospel of Mark, one of the four canonical gospels and one of the three synoptic gospels Currencies * Mark (currency), a currency or unit of account in many nations * 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 1928 * Finnish markka (), the currency of Finland from 1860 until 28 February 2002 * Polish mark (), 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 1 ... [...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 outbr ... [...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), on the Western Front (World War I), Western Front, near the village of Messines (Dutch language, Dutch: 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 views of the Brit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Female Tank
The "Female" tank was a variation of the British heavy tank deployed during the First World War. It carried multiple machine guns instead of the mix of machine guns and cannons mounted on the "male" tank. Lieutenant-Colonel Ernest Swinton, who played a part in the development of the first British tank and who was co-creator of the term "tank" (originally a code word), is credited with inventing these gender-related terms, thinking that the best tank tactics would have the two types operating in concert. The prototype, nicknamed "Mother", and the first production models of what would become referred to as the Mark I were designed to carry two six-pounder guns and three machine-guns. Swinton expressed the fear that tanks armed in such a way might be unable to protect themselves from attacks by large numbers of enemy infantry. In April 1916, it was therefore decided that half of the 150 tanks on order should be fitted with machine guns in place of the six-pounders. A new sponson ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
