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Boulton Paul Aircraft Ltd
Boulton Paul Aircraft Ltd was a British aircraft manufacturer that was incorporated in 1934, although its origins in aircraft manufacturing began earlier in 1914, and lasted until 1961. The company mainly built and modified aircraft under contract to other manufacturers, but had a few notable designs of its own, such as the Defiant fighter and the Balliol trainer. The company's origins date back to an ironmonger's shop founded in 1797 in Norwich. By the early 1900s, Boulton & Paul Ltd was a successful general manufacturing firm with a construction engineering division. It began building aircraft under contract during the First World War before moving into designing and building its own aircraft. The aircraft building business was sold off - at a low point in the aviation market - from the main construction business in 1934 and then moved to Wolverhampton under its new name Boulton Paul Aircraft Ltd in 1936 to take advantage of skilled local workforce and local government ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dowty Group
Dowty Group was a leading British manufacturer of aircraft equipment. It was listed on the London Stock Exchange and was once a constituent of the FTSE 100 Index. The firm ceased operating as an individual entity following its acquisition by TI Group in 1992. The company has its origins as the ''Aircraft Components Company'' in 1931 and the work of British inventor and businessman George Dowty. In 1934, Dowty achieved its breakthrough sale of its innovative undercarriage designs, being contracted by the Gloster Aircraft Company to provide oleo struts for the Gloster Gauntlet biplane. In 1935, as the business expanded to meet demand, Dowty founded a new manufacturing venture to produce his aviation products, which was named ''Dowty Aviation''. It would quickly secure numerous additional orders and manufacturing facilities to cope with the pressing demands of the Second World War, a significant majority of British aircraft production incorporating the firm's various product ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stationary Engine
A stationary engine is an engine whose framework does not move. They are used to drive immobile equipment, such as pumps, generators, mills or factory machinery, or cable cars. The term usually refers to large immobile reciprocating engines, principally stationary steam engines and, to some extent, stationary internal combustion engines. Other large immobile power sources, such as steam turbines, gas turbines, and large electric motors, are categorized separately. Stationary engines were once widespread in the era when each factory or mill generated its own power, and power transmission was mechanical (via line shafts, belts, gear trains, and clutches). Applications for stationary engines have declined since electrification has become widespread; most industrial uses today draw electricity from an electrical grid and distribute it to various individual electric motors instead. Engines that operate in one place, but can be moved to another place for later operation, ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Air Ministry Specifications
This is a partial list of the British Air Ministry (AM) specifications for aircraft. A specification stemmed from an Operational Requirement, abbreviated "OR", describing what the aircraft would be used for. This in turn led to the specification itself, e.g. a two-engined fighter with four machine guns. So for example, OR.40 for a heavy bomber led to Specification B.12/36. Aircraft manufacturers would be invited to present design proposals to the ministry, following which prototypes of one or more of the proposals might be ordered for evaluation. On very rare occasions, a manufacturer would design and build an aircraft using their own money as a "private venture" (PV). This would then be offered to the ministry for evaluation. If the aircraft generated interest in the ministry or RAF due to performance or some other combination of features then the ministry might well issue a specification based on the private venture aircraft. The system of producing aircraft to a specification r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delta-wing
A delta wing is a wing shaped in the form of a triangle. It is named for its similarity in shape to the Greek uppercase letter delta (Δ). Although long studied, it did not find significant applications until the Jet Age, when it proved suitable for high-speed subsonic and supersonic flight. At the other end of the speed scale, the Rogallo flexible wing proved a practical design for the hang glider and other ultralight aircraft. The delta wing form has unique aerodynamic characteristics and structural advantages. Many design variations have evolved over the years, with and without additional stabilising surfaces. General characteristics Structure The long root chord of the delta wing and minimal structure outboard make it structurally efficient. It can be built stronger, stiffer and at the same time lighter than a swept wing of equivalent lifting capability. Because of this it is easy and relatively inexpensive to build – a substantial factor in the success of the MiG- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland Vampire
The de Havilland Vampire is a British jet fighter which was developed and manufactured by the de Havilland Aircraft Company. It was the second jet fighter to be operated by the RAF, after the Gloster Meteor, and the first to be powered by a single jet engine. Development of the Vampire as an experimental aircraft began in 1941 during the Second World War, to exploit the revolutionary innovation of jet propulsion. From the company's design studies, it was decided to use a single-engine, twin-boom aircraft, powered by the Halford H.1 turbojet (later produced as the Goblin). Aside from its propulsion system and twin-boom configuration, it was a relatively conventional aircraft. In May 1944 it was decided to produce the aircraft as an interceptor for the Royal Air Force (RAF). In 1946 the Vampire entered operational service with the RAF, only months after the war had ended. The Vampire quickly proved to be effective and was adopted as a replacement of wartime piston-engine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
English Electric Canberra
The English Electric Canberra is a British first-generation, jet-powered medium bomber. It was developed by English Electric during the mid- to late 1940s in response to a 1944 Air Ministry requirement for a successor to the wartime de Havilland Mosquito fast bomber. Among the performance requirements for the type was an outstanding high-altitude bombing capability and high speed. These were partly accomplished by making use of newly developed jet-propulsion technology. When the Canberra was introduced to service with the Royal Air Force (RAF), the type's first operator, in May 1951, it became the service's first jet-powered bomber. In February 1951, a Canberra set another world record when it became the first jet aircraft to make a nonstop transatlantic flight. Throughout most of the 1950s, the Canberra could fly at a higher altitude than any other aircraft in the world, and in 1957, a Canberra established a world altitude record of . Due to its ability to evade the early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Aircraft
A jet aircraft (or simply jet) is an aircraft (nearly always a fixed-wing aircraft) propelled by jet engines. Whereas the engines in propeller-powered aircraft generally achieve their maximum efficiency at much lower speeds and altitudes, jet engines achieve maximum efficiency at speeds close to or even well above the speed of sound. Jet aircraft generally cruise most efficiently at about Mach 0.8 () and at altitudes around or more. The idea of the jet engine was not new, but the technical problems involved could not begin to be solved until the 1930s. Frank Whittle, an English inventor and RAF officer, began development of a viable jet engine in 1928, and Hans von Ohain in Germany began work independently in the early 1930s. In August 1939 the turbojet powered Heinkel He 178, the world's first jet aircraft, made its first flight. A wide range of different types of jet aircraft exist, both for civilian and military purposes. History After the first instance of powered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vickers Wellington
The Vickers Wellington was a British twin-engined, long-range medium bomber. It was designed during the mid-1930s at Brooklands in Weybridge, Surrey. Led by Vickers-Armstrongs' chief designer Rex Pierson; a key feature of the aircraft is its geodetic airframe fuselage structure, which was principally designed by Barnes Wallis. Development had been started in response to Air Ministry Specification B.9/32, issued in the middle of 1932, for a bomber for the Royal Air Force. This specification called for a twin-engined day bomber capable of delivering higher performance than any previous design. Other aircraft developed to the same specification include the Armstrong Whitworth Whitley and the Handley Page Hampden. During the development process, performance requirements such as for the tare weight changed substantially, and the engine used was not the one originally intended. The Wellington was used as a night bomber in the early years of the Second World War, performing as on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fairey Barracuda
The Fairey Barracuda was a British carrier-borne torpedo and dive bomber designed by Fairey Aviation. It was the first aircraft of this type operated by the Royal Navy's Fleet Air Arm (FAA) to be fabricated entirely from metal. The Barracuda was developed as a replacement for the Fairey Albacore biplanes. Development was protracted due to the original powerplant intended for the type, the Rolls-Royce Exe, being cancelled. It was replaced by the less powerful Rolls-Royce Merlin engine. On 7 December 1940, the first Fairey prototype conducted its maiden flight. Early testing revealed it to be somewhat underpowered. However, the definitive Barracuda Mk II had a more powerful model of the Merlin engine, while later versions were powered by the larger and even more powerful Rolls-Royce Griffon engine. The type was ordered in bulk to equip the FAA. In addition to Fairey's own production line, Barracudas were also built by Blackburn Aircraft, Boulton Paul, and Westland Aircraft. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackburn Aircraft Ltd
Blackburn () is an industrial town and the administrative centre of the Blackburn with Darwen borough in Lancashire, England. The town is north of the West Pennine Moors on the southern edge of the River Ribble, Ribble Valley, east of Preston, Lancashire, Preston and north-northwest of Manchester. Blackburn is the core centre of the wider unitary authority area along with the town of Darwen. It is one of the largest districts in Lancashire, with commuter links to neighbouring cities of Manchester, Salford, Greater Manchester, Salford, Preston, Lancashire, Preston, Lancaster, Lancashire, Lancaster, Liverpool, Bradford and Leeds. At the United Kingdom Census 2011, 2011 census, Blackburn had a population of List of urban areas in England by population, 117,963, whilst the wider borough of Blackburn with Darwen had a population of List of English districts by population, 150,030. Blackburn had a population of 117,963 in 2011, with 30.8% being people of ethnic backgrounds other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackburn Roc
The Blackburn Roc (company designation B-25) was a naval fighter aircraft designed and produced by the British aviation company Blackburn Aircraft. It took its name from the mythical bird of the tales of the Arabian Nights, the Roc. It was operated by the Fleet Air Arm (FAA) and was active during the Second World War. The Roc was designed to Air Ministry Specification O.30/35 and was derived from the Blackburn Skua dive-bomber/fighter and developed in parallel to it. Unlike the Skua, the Roc had its armament in a turret. A large proportion of the work was subcontracted to another aircraft manufacturer, Boulton Paul, which had also designed their own turret fighter, the Boulton Paul Defiant. On 23 December 1938, the prototype Roc performed its maiden flight. Testing soon revealed it to have a relatively low maximum speed of only . The float plane version of the Roc was even slower, leading to the cancellation of plans to equip float plane squadrons with the type. Cancellation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
