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Green Archer (radar)
Green Archer, also called Radar, Field Artillery, No 8 was a widely used British mortar locating radar operating in the X band using a Foster scanner. Developed by EMI after an experimental model by the Royal Radar Establishment, it was in British service from 1962 until 1975 with the Royal Artillery. A self-propelled version was designated FV436 or Radar, FA, No 8 Mk 2. It was replaced by Cymbeline starting in 1975. Concept Mortars, using indirect fire, became a major threat to infantry in World War II. It was found that mortar bombs in flight could be detected and tracked by radar. US and UK anti-aircraft radars were used and specialised mortar locating radars appeared at the end of the war, and were used in Korea with varying degrees of success. Hostile mortars had to be accurately located before they could be attacked with indirect fire from guns or mortars. Since hostile mortars moved frequently to avoid return fire it was essential to have a means of locating them to a f ... [...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 was simi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humber Pig
The Humber Pig is a lightly armoured truck used by the British Army from the 1950s until the early 1990s. The Pig saw service with the Royal Ulster Constabulary (RUC) chiefly as an armoured personnel carrier from late 1958 until early 1970. The Pig became particularly well known from its presence on the streets of Northern Ireland during the worst of the Troubles. History Officially designated Truck, Armoured, 1 Ton, 4x4, the Humber Pig is based on the FV1600 series of four wheel drive 1-ton payload trucks manufactured for the British Army by Rootes from 1952 to 1955. The Pig FV1611 is the armoured variant of FV1601 CT Truck and the FV1612 the armoured version of the FV1602 CT FFW Truck. As FV1609 an armoured version was originally designed to fulfil many roles with Royal Armoured Corps, Royal Artillery, Royal Engineers, RS, REME and infantry. The full armoured body was fitted to fulfil the need for an armoured personnel carrier until the Alvis Saracen could be delivered in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weapon Locating Radar
A counter-battery radar (alternatively weapon tracking radar or COBRA) is a radar system that detects artillery projectiles fired by one or more guns, howitzers, mortars or rocket launchers and, from their trajectories, locates the position on the ground of the weapon that fired it. Such radars are a subclass of the wider class of target acquisition radars. Early counter-battery radars were generally used against mortars, whose lofted trajectories were highly symmetrical and allowed easy calculation of the launcher's location. Starting in the 1970s, digital computers with improved calculation capabilities allowed more complex trajectories of long-range artillery to also be determined. Normally, these radars would be attached to friendly artillery units or their support units, allowing them to quickly arrange counter-battery fire. With the aid of modern communications systems, the information from a single radar can be rapidly disseminated over long distances. This allows the rad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Radars Of The United Kingdom
A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct military uniform. It may consist of one or more military branches such as an army, navy, air force, space force, marines, or coast guard. The main task of the military is usually defined as defence of the state and its interests against external armed threats. In broad usage, the terms ''armed forces'' and ''military'' are often treated as synonymous, although in technical usage a distinction is sometimes made in which a country's armed forces may include both its military and other paramilitary forces. There are various forms of irregular military forces, not belonging to a recognized state; though they share many attributes with regular military forces, they are less often referred to as simply ''military''. A nation's military may f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold War Military Equipment Of The United Kingdom
Cold is the presence of low temperature, especially in the atmosphere. In common usage, cold is often a subjective perception. A lower bound to temperature is absolute zero, defined as 0.00K on the Kelvin scale, an absolute thermodynamic temperature scale. This corresponds to on the Celsius scale, on the Fahrenheit scale, and on the Rankine scale. Since temperature relates to the thermal energy held by an object or a sample of matter, which is the kinetic energy of the random motion of the particle constituents of matter, an object will have less thermal energy when it is colder and more when it is hotter. If it were possible to cool a system to absolute zero, all motion of the particles in a sample of matter would cease and they would be at complete rest in the classical sense. The object could be described as having zero thermal energy. Microscopically in the description of quantum mechanics, however, matter still has zero-point energy even at absolute zero, because ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Neatishead
Remote Radar Head Neatishead ( ) or RRH Neatishead is an air defence radar station operated by the Royal Air Force. It is located approximately north east of Norwich in Norfolk, England. It was established during the Second World War and consists of the main technical site, and a number of remote, and sometimes unmanned sites. History The site was previously known as RAF Neatishead and its primary function was as a "Control and Reporting Centre" (CRC) for the south of the United Kingdom. Equipment previously located in the base included: Type 7 GCI, AN/FPS-6 height finding radar, Type 80 "Green Garlic" radar, Type 84 radar, Type 85 "Blue Yeoman" radar, 3 Decca (later Plessey) HF200 height finding radars, and a R15 radar. On 16 February 1966 a fire broke out in the bunker, station fire teams were unsuccessful in putting the fire out and so civilian fire crews were called. Three civilian firefighters died and the fire burned for nine days before it was fully extinguished. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FV432
The FV432 is the armoured personnel carrier variant in the British Army's FV430 series of armoured fighting vehicles. Since its introduction in the 1960s, it has been the most common variant, being used for transporting infantry on the battlefield. At its peak in the 1980s, almost 2,500 vehicles were in use. Although the FV432 was to have been phased out of service in favour of newer vehicles such as the Warrior and CVR(T), 500 were upgraded to extend their service into the 2020s. In light of the army's need for additional armoured vehicles in the Afghan and Iraqi theatres, the Ministry of Defence announced in August 2006 that an extra 70 vehicles would be upgraded by BAE Systems in addition to the 54 already ordered as part of their "force protection initiative". The improvements take the form of an engine upgrade, a new steering unit and a new braking system, as well as improvement in armour protection to a level similar to that of the Warrior. In addition, plates lined with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alvis Saracen
The FV603 Saracen is a six-wheeled armoured personnel carrier designed and produced by Alvis since 1952. It has been used by a variety of operators around the world, and is still in use in secondary roles in some countries. The Saracen became a recognisable vehicle as a result of its part in the policing of Northern Ireland as well as for its role in the South African government's enforcement of apartheid. History The FV603 Saracen was the armoured personnel carrier of Alvis's FV600 series. Besides the driver and commander, a squad of eight soldiers plus a troop commander could be carried. Most models carried a small turret on the roof, carrying a Browning .30 machine gun. A .303 Bren gun could be mounted on an anti-aircraft ring-mount accessed through a roof hatch and there were ports on the sides through which troops could fire. Although removed from active service, it saw extensive use into the 1980s in Northern Ireland and was a familiar sight, nicknamed 'sixers', duri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azimuth
An azimuth (; from ar, اَلسُّمُوت, as-sumūt, the directions) is an angular measurement in a spherical coordinate system. More specifically, it is the horizontal angle from a cardinal direction, most commonly north. Mathematically, the relative position vector from an observer (origin) to a point of interest is projected perpendicularly onto a reference plane (the horizontal plane); the angle between the projected vector and a reference vector on the reference plane is called the azimuth. When used as a celestial coordinate, the azimuth is the horizontal direction of a star or other astronomical object in the sky. The star is the point of interest, the reference plane is the local area (e.g. a circular area with a 5 km radius at sea level) around an observer on Earth's surface, and the reference vector points to true north. The azimuth is the angle between the north vector and the star's vector on the horizontal plane. Azimuth is usually measured in d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Counter-battery Radar
A counter-battery radar (alternatively weapon tracking radar or COBRA) is a radar system that detects artillery projectiles fired by one or more guns, howitzers, mortars or rocket launchers and, from their trajectories, locates the position on the ground of the weapon that fired it. Such radars are a subclass of the wider class of target acquisition radars. Early counter-battery radars were generally used against mortars, whose lofted trajectories were highly symmetrical and allowed easy calculation of the launcher's location. Starting in the 1970s, digital computers with improved calculation capabilities allowed more complex trajectories of long-range artillery to also be determined. Normally, these radars would be attached to friendly artillery units or their support units, allowing them to quickly arrange counter-battery fire. With the aid of modern communications systems, the information from a single radar can be rapidly disseminated over long distances. This allows the ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
