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Rose Turret
The Rose turret (sometimes known as the Rose-Rice turret) was a gun turret fit to the rear position of some British Avro Lancaster heavy bombers in 1944–45. It was armed with two American light-barrel Browning .50-calibre AN/M2 heavy machine guns — the standard American defensive weapon used in turreted and flexible mounts in the B-17 Flying Fortress and B-24 Liberator. Development of the turret began in 1943 as part of a program to improve the Lancaster's defensive armament but it did not enter production until late 1944. The Royal Air Force (RAF) ordered 600 Rose turrets in June 1944 and 400 were completed by the end of the Second World War in Europe. The turret was generally regarded as an improvement over previous designs, although its guns had a high rate of stoppage during combat. Development When introduced to service, all three of the Avro Lancaster's gun turrets were fitted with Browning medium machine guns firing the .303 British round. The front and mid-upper t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Air Force Museum London
The Royal Air Force Museum London (also commonly known as the RAF Museum) is located on the former Hendon Aerodrome. It includes five buildings and hangars showing the history of aviation and the Royal Air Force. It is part of the Royal Air Force Museum. There is another site at Royal Air Force Museum Cosford at RAF Cosford in Shropshire. History The Museum site at Colindale was once part of the RAF Hendon station and prior to that, one of the first civilian airfields, acquired by Claude Grahame-White in 1911. In 1914, the aerodrome was requisitioned for Home Defence during the First World War. Hendon became a Royal Naval Air Station, training new pilots in the flying schools on site. Operations ceased after the end of the Great War. From 1927 to 1939 Hendon housed No. 601 Squadron, nicknamed the 'Millionaires' Squadron' due to the wealth and upper social class of its volunteers. In 1939, the outbreak of war saw Hendon once again become an operational RAF station, home to No ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
20 Mm Caliber
20 mm caliber is a specific size of popular autocannon ammunition. It is typically used to distinguish smaller-caliber weapons, commonly called "guns", from larger-caliber "cannons" (e.g. machine gun vs. autocannon). All 20 mm cartridges have an outside projectile (bullet) diameter and barrel bore diameter of . These projectiles are typically long, cartridge cases are typically long, and most are shells, with an explosive payload and detonating fuze. Weapons using this caliber range from anti-materiel rifles and anti-tank rifles to aircraft autocannons and anti-aircraft guns. Usage Twenty-millimeter-caliber weapons are generally not used to target individual soldiers, but have targets such as vehicles, buildings, or aircraft. Types of ammunition *High explosive (HE) *High explosive incendiary (HEI) *Armor-piercing (AP) * Semi-armor-piercing high explosive incendiary (SAPHEI) *Armor-piercing discarding sabot (APDS) *High explosive fragmentation tracer (HEF-T) * High ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heavy Bomber
Heavy bombers are bomber aircraft capable of delivering the largest payload of air-to-ground weaponry (usually bombs) and longest range (takeoff to landing) of their era. Archetypal heavy bombers have therefore usually been among the largest and most powerful military aircraft at any point in time. In the second half of the 20th century, heavy bombers were largely superseded by strategic bombers, which were often smaller in size, but had much longer ranges and were capable of delivering nuclear bombs. Because of advances in aircraft design and engineering — especially in powerplants and aerodynamics — the size of payloads carried by heavy bombers has increased at rates greater than increases in the size of their airframes. The largest bombers of World War I, the four engine aircraft built by the Sikorsky company in the Soviet Union, could carry a payload of up to of bombs. By the middle of World War II even a single-engine fighter-bomber could carry a bomb load, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celsius
The degree Celsius is the unit of temperature on the Celsius scale (originally known as the centigrade scale outside Sweden), one of two temperature scales used in the International System of Units (SI), the other being the Kelvin scale. The degree Celsius (symbol: °C) can refer to a specific temperature on the Celsius scale or a unit to indicate a difference or range between two temperatures. It is named after the Swedish astronomer Anders Celsius (1701–1744), who developed a similar temperature scale in 1742. Before being renamed in 1948 to honour Anders Celsius, the unit was called ''centigrade'', from the Latin ''centum'', which means 100, and ''gradus'', which means steps. Most major countries use this scale; the other major scale, Fahrenheit, is still used in the United States, some island territories, and Liberia. The Kelvin scale is of use in the sciences, with representing absolute zero. Since 1743 the Celsius scale has been based on 0 °C for the freezing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gransden Lodge Airfield
Gransden Lodge Airfield is a former wartime airfield located west of Cambridge, Cambridgeshire, England. The Cambridge University Gliding Club (now Cambridge Gliding Centre) moved to Gransden Lodge in October 1991, having previously shared Duxford Airfield with the Imperial War Museum Duxford. History Gransden Lodge opened in April 1942 as an operational RAF Bomber Command station called RAF Gransden Lodge with three concrete runways. At the end of 1945 the airfield was transferred to Transport Command RAF Transport Command was a Royal Air Force command that controlled all transport aircraft of the RAF. It was established on 25 March 1943 by the renaming of the RAF Ferry Command, and was subsequently renamed RAF Air Support Command in 1967. ... but the last operational squadron was disbanded in February 1946. The RAF station closed in 1955 and it was also used for some motor races, including the first major postwar motor race in the UK on 15 June 1946. Operation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tail Gunner
A tail gunner or rear gunner is a crewman on a military aircraft who functions as a gunner defending against enemy fighter or interceptor attacks from the rear, or "tail", of the plane. The tail gunner operates a flexible machine gun or autocannon emplacement in the tail end of the aircraft with an unobstructed view toward the rear of the aircraft. While the term ''tail gunner'' is usually associated with a crewman inside a gun turret, the first tail guns were operated from open apertures within the aircraft's fuselage, such as the Scarff ring mechanism used in the British Handley Page V/1500, which was introduced during latter months of the First World War. Increasingly capable tail gunner positions were developed during the interwar period and the Second World War, resulting in the emergence of the powered turret and fire control systems incorporating radar guidance. In particularly advanced tail gunner arrangements, the tail armament may be operated by remote control fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poly(methyl Methacrylate)
Poly(methyl methacrylate) (PMMA) belongs to a group of materials called engineering plastics. It is a transparent thermoplastic. PMMA is also known as acrylic, acrylic glass, as well as by the trade names and brands Crylux, Plexiglas, Acrylite, Astariglas, Lucite, Perclax, and Perspex, among several others ( see below). This plastic is often used in sheet form as a lightweight or shatter-resistant alternative to glass. It can also be used as a casting resin, in inks and coatings, and for many other purposes. Although not a type of familiar silica-based glass, the substance, like many thermoplastics, is often technically classified as a type of glass, in that it is a non-crystalline vitreous substance—hence its occasional historic designation as ''acrylic glass''. Chemically, it is the synthetic polymer of methyl methacrylate. It was developed in 1928 in several different laboratories by many chemists, such as William Chalmers, Otto Röhm, and Walter Bauer, and first brought ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulics
Hydraulics (from Greek: Υδραυλική) is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on the applied engineering using the properties of fluids. In its fluid power applications, hydraulics is used for the generation, control, and transmission of power by the use of pressurized liquids. Hydraulic topics range through some parts of science and most of engineering modules, and cover concepts such as pipe flow, dam design, fluidics and fluid control circuitry. The principles of hydraulics are in use naturally in the human body within the vascular system and erectile tissue. Free surface hydraulics is the branch of hydraulics dealing with free surface flow, such as occurring in rivers, canals, lakes, estuar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rear View Of Rose Turret At RAF Museum London
{{disambiguation ...
Rear may refer to: Animals *Rear (horse), when a horse lifts its front legs off the ground *In stockbreeding, to breed and raise Humans *Parenting (child rearing), the process of promoting and supporting a child from infancy to adulthood *Gender of rearing, the gender in which parents rear a child Military *Rear (military), the area of a battlefield behind the front line *Rear admiral, a naval officer See also * Rear end (other) * Behind (other) * Hind (other) A hind is a female deer, especially a red deer. Places * Hind (Sasanian province, 262-484) * Hind and al-Hind, a Persian and Arabic name for the Indian subcontinent * Hind (crater), a lunar impact crater * 1897 Hind, an asteroid Military ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nash & Thompson
Nash & Thompson was a British engineering firm that developed and produced hydraulically operated gun turrets for aircraft. As part of Parnall Aircraft it was also an important manufacturer of hydraulic-powered radar scanners used on radar systems such as H2S and AI Mark VIII. Nash & Thompson also designed the hydraulically-powered turret traversing systems that were used in British Cruiser tanks from the A9 - the first tank with a powered turret traverse - through to the Cromwell. History Nash & Thompson was established in 1929 at Kingston upon Thames by business partners Archibald Goodman Frazer Nash and Esmonde Grattan ThompsonEsmonde Grattan Thompson died Roquebrune, Cap-Martin 19 January 1960, Managing Director of Parnall Aircraft. Obituary, ''The Times'', Wednesday, 20 January 1960; p. 15; Issue 54673 Nash & Thompson developed the hydraulic gun turrets that Frazer-Nash invented and his designs were consequently numbered in a series prefixed with "FN". Parnall Airc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Rice (RAF Officer)
Edward Rice may refer to: *Ed Rice (1918–2001), American author, publisher, photojournalist and painter *Edward A. Rice Jr. (born 1955), United States Air Force officer * Edward E. Rice (1847–1924), writer in American theater *Edward Loranus Rice (1871–1960), American biologist *Edward M. Rice (born 1960), American Catholic bishop *Edward Royd Rice (1790–1878), British MP for Dover, 1837–1857 * Edward Y. Rice (1820–1883), U.S. representative from Illinois *Edward Rice (Royal Navy officer) (1819–1902), British admiral *Edward Rice (priest) (1779–1862), Dean of Gloucester * Edward Hyde Rice (1847–1895), American academic *Edward Le Roy Rice Edward LeRoy Rice (August 24, 1871 - December 1, 1938) was an American producer of minstrel shows. He was the leading authority on the history of minstrel shows. He also bought and sold theatrical memorabilia. Biography He was born in Manhattan, ... (1871–1938), American producer of minstrel shows See also * Edmund Rice (dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ministry Of Aircraft Production
Ministry may refer to: Government * Ministry (collective executive), the complete body of government ministers under the leadership of a prime minister * Ministry (government department), a department of a government Religion * Christian ministry, activity by Christians to spread or express their faith ** Minister (Christianity), clergy authorized by a church or religious organization to perform teaching or rituals ** Ordination, the process by which individuals become clergy * Ministry of Jesus, activities described in the Christian gospels * ''Ministry'' (magazine), a magazine for pastors published by the Seventh-day Adventist Church Music * Ministry (band), an American industrial metal band * Ministry of Sound, a London nightclub and record label Fiction * Ministry (comics), a horror comic book created by writer-artist Lara J. Phillips * Ministry of Magic, governing body in the ''Harry Potter'' series * Ministry of Darkness, a professional wrestling stable led by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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