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Bombing Of Essen In World War II
During World War II, the industrial town of Essen, was a target of Allied strategic bombing. The Krupp steelworks was an important industrial target, Essen was a "primary target" designated for area bombing by the February 1942 British Area bombing directive. As part of the campaign in 1943 known as the Battle of the Ruhr, Essen was a regular target. The Germans built large-scale night-time decoys like the Krupp decoy site (German: Kruppsche Nachtscheinanlage) which was a copy of the Krupp steel works in Essen. During World War II, it was designed to divert Allied airstrikes from the actual production site of the arms factory. In the period 1939 to 1945 the Royal Air Force The Royal Air Force (RAF) is the United Kingdom's air and space force. It was formed towards the end of the First World War on 1 April 1918, becoming the first independent air force in the world, by regrouping the Royal Flying Corps (RFC) an ... (RAF) dropped a total of 36,429 long tons of bombs on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Window - Lancaster Dropping Window
A window is an opening in a wall, door, roof, or vehicle that allows the exchange of light and may also allow the passage of sound and sometimes air. Modern windows are usually glazed or covered in some other transparent or translucent material, a sash set in a frame in the opening; the sash and frame are also referred to as a window. Many glazed windows may be opened, to allow ventilation, or closed, to exclude inclement weather. Windows may have a latch or similar mechanism to lock the window shut or to hold it open by various amounts. In addition to this, many modern day windows may have a window screen or mesh, often made of aluminum or fibreglass, to keep bugs out when the window is opened. Types include the eyebrow window, fixed windows, hexagonal windows, single-hung, and double-hung sash windows, horizontal sliding sash windows, casement windows, awning windows, hopper windows, tilt, and slide windows (often door-sized), tilt and turn windows, transom windows, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eighth Air Force - Emblem (World War II)
Eighth is ordinal form of the number eight. Eighth may refer to: * One eighth, or ⅛, a fraction, one of eight equal parts of a whole * Eighth note (quaver), a musical note played for half the value of a quarter note (crotchet) * Octave, an interval between seventh and ninth * Eighth octave C, a C note * Eighth Lake, a lake by Inlet, New York See also * 1/8 (other) * 8 (other) * The 8th (other) The 8th or The Eighth may refer to: * ''The 8th'' (Doc Walker album), 2014 * ''The 8th'' (Paul Heaton album), 2012 * ''The 8th'' (film), 2020 Irish film * ''The Eighth'' (album), by Cecil Taylor, 1981 * The Eighth (United States), a former U.S. hol ... * The Eighth Day (other) * {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coker Unit
A coker or coker unit is an oil refinery processing unit that converts the residual oil from the vacuum distillation column into low molecular weight hydrocarbon gases, naphtha, light and heavy gas oils, and petroleum coke. The process thermally cracks the long chain hydrocarbon molecules in the residual oil feed into shorter chain molecules leaving behind the excess carbon in the form of petroleum coke. This petroleum coke can either be fuel grade (high in sulphur and metals) or anode grade (low in sulphur and metals). The raw coke from the coker is often referred to as green coke. In this context, "green" means unprocessed. The further processing of green coke by calcining in a rotary kiln removes residual volatile hydrocarbons from the coke. The calcined petroleum coke can be further processed in an anode baking oven in order to produce anode coke of the desired shape and physical properties. The anodes are mainly used in the aluminium and steel industry. Types of coker u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombing Of Cologne In World War II
The German city of Cologne was bombed in 262 separate air raidsStadtlandschaften versus Hochstadt at www.koelnarchitektur.de "Internet portal for the architecture of Cologne". (In German). by the during , all by the (RAF). A total of 34,711 long tons of bombs were dropped on the city by the RAF. 20,000 people died during the war in Cologne due to aerial bombardments. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Westwall
The Siegfried Line, known in German as the ''Westwall'', was a German defensive line built during the 1930s (started 1936) opposite the French Maginot Line. It stretched more than ; from Kleve on the border with the Netherlands, along the western border of Nazi Germany, to the town of Weil am Rhein on the border with Switzerland – and featured more than 18,000 bunkers, tunnels and tank traps. From September 1944 to March 1945 the Siegfried Line was subjected to a large-scale Allied offensive. Name The official name for the German defensive line construction program before and during the Second World War that collectively came to be known as the "Westwall" (and "Siegfried Line", or sometimes "West Wall", in English) changed several times during the late 1930s reflecting areas of progress. * Border Watch programme (pioneering programme) for the most advanced positions (1938) * Limes Programme (1938) * Western Air Defense Zone (1938) * Aachen–Saar Programme (1939) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marshalling Yards
A classification yard (American and Canadian English (Canadian National Railway use)), marshalling yard ( British, Hong Kong, Indian, Australian, and Canadian English (Canadian Pacific Railway use)) or shunting yard (Central Europe) is a railway yard found at some freight train stations, used to separate railway cars onto one of several tracks. First the cars are taken to a track, sometimes called a ''lead'' or a ''drill''. From there the cars are sent through a series of switches called a ''ladder'' onto the classification tracks. Larger yards tend to put the lead on an artificially built hill called a ''hump'' to use the force of gravity to propel the cars through the ladder. Freight trains that consist of isolated cars must be made into trains and divided according to their destinations. Thus the cars must be shunted several times along their route in contrast to a unit train, which carries, for example, cars from the plant to a port, or coal from a mine to the power pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Berlin (air)
The Battle of Berlin (November 1943 to March 1944) was a bombing campaign against Berlin by RAF Bomber Command along with raids on other German cities to keep German defences dispersed. Air Chief Marshal Sir Arthur Harris, Air Officer Commanding-in-Chief (AOC-in-C) Bomber Command, believed that "We can wreck Berlin from end to end if the USAAF come in with us. It will cost us between 400 and 500 aircraft. It will cost Germany the war". Harris could expect about 800 serviceable heavy bombers for each raid, equipped with new and sophisticated navigational devices such as H2S radar. The USAAF, having recently lost many aircraft in attacks on Schweinfurt, did not participate. The Main Force of Bomber Command attacked Berlin sixteen times but failed in its object of inflicting a decisive defeat on Germany. The Royal Air Force lost more than 7,000 aircrew and 1,047 bombers, (5.1 per cent of the sorties flown); a further 1,682 aircraft were damaged or written off. On 30 March 1944, Bom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaff (countermeasure)
Chaff, originally called Window by the British and ''Düppel'' by the Second World War era German Luftwaffe (from the Berlin suburb where it was first developed), is a radar countermeasure in which aircraft or other targets spread a cloud of small, thin pieces of aluminium, metallized glass fibre or plastic, which either appears as a cluster of primary targets on radar screens or swamps the screen with multiple returns, in order to confuse and distract. Modern armed forces use chaff (in naval applications, for instance, using short-range SRBOC rockets) to distract radar-guided missiles from their targets. Most military aircraft and warships have chaff dispensing systems for self-defense. An intercontinental ballistic missile may release in its midcourse phase several independent warheads as well as penetration aids such as decoy balloons and chaff. Modern radar systems can distinguish chaff from target objects by measuring the Doppler shift; chaff quickly loses speed compare ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oboe (navigation)
Oboe was a British bomb aiming system developed to allow their aircraft to bomb targets accurately in any type of weather, day or night. Oboe coupled radar tracking with radio transponder technology. The guidance system used two well separated radar stations to track the aircraft. Each Oboe tracking station used radio ranging to define a circle, the radius of which was the distance from the station to the target, the third point in the triangulation. The two circles intersected at the target. Radar pulses from each station were picked up by a transponder mounted in the aircraft. The aircraft transponder transmitted the signals back to the stations, after a slight delay. By assessing the time it took for the signal to return the distance between the station and the aircraft could be determined. One tracking station, the Cat station, was used to adjust the aircraft's flight path. The other station, the Mouse, was used to key the bomb release point. Oboe, in essence, was a ground- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Short Stirling
The Short Stirling was a British four-engined heavy bomber of the Second World War. It has the distinction of being the first four-engined bomber to be introduced into service with the Royal Air Force (RAF). The Stirling was designed during the late 1930s by Short Brothers to conform with the requirements laid out in Air Ministry Specification B.12/36. Prior to this, the RAF had been primarily interested in developing increasingly capable twin-engined bombers, but had been persuaded to investigate a prospective four-engined bomber as a result of promising foreign developments in the field. Out of the submissions made to the specification, Supermarine proposed the Type 317, which was viewed as the favourite, whereas Short's submission, named the S.29, was selected as an alternative. When the preferred Type 317 had to be abandoned, the S.29, which later received the name Stirling, proceeded to production. In early 1941, the Stirling entered squadron service. During its use as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handley Page Halifax
The Handley Page Halifax is a British Royal Air Force (RAF) four-engined heavy bomber of the Second World War. It was developed by Handley Page to the same specification as the contemporary twin-engine Avro Manchester. The Halifax has its origins in the twin-engine ''HP56'' proposal of the late 1930s, produced in response to the British Air Ministry's Specification P.13/36 for a capable medium bomber for "world-wide use." The HP56 was ordered as a backup to the Avro 679, both aircraft being designed to use the underperforming Rolls-Royce Vulture engine. The Handley Page design was altered at the Ministry to a four-engine arrangement powered by the Rolls-Royce Merlin engine; the rival Avro 679 was produced as the twin-engine Avro Manchester which, while regarded as unsuccessful mainly due to the Vulture engine, was a direct predecessor of the famed Avro Lancaster. Both the Lancaster and the Halifax emerged as capable four-engined strategic bombers, thousands of which were built ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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