|
De Havilland Propellers
de Havilland Propellers was established in 1935, as a division of the de Havilland Aircraft company when that company acquired a licence from the Hamilton Standard company of America for the manufacture of variable-pitch propellers at a cost of about £20,000. Licence negotiations were completed in June 1934. de Havilland Propellers, Ltd., was incorporated on 27 April 1946, with the main headquarters at Hatfield as the centre of design, development, and flight-testing, and with the main production plant at Lostock in Lancashire. The factory had been built in only nine months as part of the government's emergency pre-war shadow-factory programme. Work on missiles began in the late 1940s, early 1950s at the Hatfield plant in facilities which had been used during the war for the development and testing of aircraft propellers. By the early sixties, the company became Hawker Siddeley Dynamics which in turn became ''British Aerospace Dynamics,'' later BAE Systems (Guided Weapo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines. Common examples of aircraft include airplanes, helicopters, airships (including blimps), gliders, paramotors, and hot air balloons. The human activity that surrounds aircraft is called ''aviation''. The science of aviation, including designing and building aircraft, is called ''aeronautics.'' Crewed aircraft are flown by an onboard pilot, but unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers. Aircraft may be classified by different criteria, such as lift type, aircraft propulsion, usage and others. History Flying model craft and stories of manned flight go back many centuries; however, the first manned ascent — and safe descent — in modern times took place by larger hot-air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hatfield, Hertfordshire
Hatfield is a town and civil parish in Hertfordshire, England, in the borough of Welwyn Hatfield. It had a population of 29,616 in 2001, and 39,201 at the 2011 Census. The settlement is of Saxon origin. Hatfield House, home of the Marquess of Salisbury, forms the nucleus of the old town. From the 1930s when de Havilland opened a factory until the 1990s when British Aerospace closed it, aircraft design and manufacture employed more people there than any other industry. Hatfield was one of the post-war New Towns built around London and has much modernist architecture from the period. The University of Hertfordshire is based there. Hatfield lies north of London beside the A1(M) motorway and has direct trains to London King's Cross railway station, Finsbury Park and Moorgate. There has been a strong increase in commuters who work in London moving into the area. In 2022, TV property expert Phil Spencer named Hatfield as the second best place to live for regular commuters to Londo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norman De Bruyne
Norman Adrian de Bruyne FRS was born in Punta Arenas Chile on 8 November 1904, and baptised on 19 March 1905 at the Anglican St. James Church, by the Rev. Edwin Aspinall. His father was Dutch and his mother English. He grew up in England, studied science at the University of Cambridge and became a physics researcher. Around 1930, he became interested in aviation. de Bruyne was the first student of the new flying school which Arthur Marshall established in Cambridge in 1931 Early life Norman de Bruyne was educated at Lancing and Trinity College, Cambridge from October 1923, reading Natural Sciences and obtaining a First in 1927. On or before graduating in 1927, he climbed the side of the Great Gate to place a broken furniture leg in the right hand of the statue of Henry VIII. He became a Fellow at Trinity in 1928 to research atomic physics under Rutherford at the Cavendish Laboratory. In 1928 de Bruyne published his findings in the Proceedings of the Royal Society. He also wr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fibre-reinforced Plastic
Fibre-reinforced plastic (FRP; also called fibre-reinforced polymer, or in American English ''fiber'') is a composite material made of a polymer matrix reinforced with fibres. The fibres are usually glass (in fibreglass), carbon (in carbon-fibre-reinforced polymer), aramid, or basalt. Rarely, other fibres such as paper, wood, or asbestos have been used. The polymer is usually an epoxy, vinyl ester, or polyester thermosetting plastic, though phenol formaldehyde resins are still in use. FRPs are commonly used in the aerospace, automotive, marine, and construction industries. They are commonly found in ballistic armour and cylinders for self-contained breathing apparatuses. Process definition A polymer is generally manufactured by step-growth polymerization or addition polymerization. When combined with various agents to enhance or in any way alter the material properties of polymers, the result is referred to as a plastic. Composite plastics refers to those types of plastic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convair
Convair, previously Consolidated Vultee, was an American aircraft manufacturing company that later expanded into rockets and spacecraft. The company was formed in 1943 by the merger of Consolidated Aircraft and Vultee Aircraft. In 1953, it was purchased by General Dynamics, and operated as their Convair Division for most of its corporate history. Convair is best known for its military aircraft; it produced aircraft such as the Convair B-36 Peacemaker and Convair B-58 Hustler strategic bombers, and the Convair F-102 Delta Dagger and Convair F-106 Delta Dart interceptors. It also manufactured the first Atlas rockets, including the rockets that were used for the crewed orbital flights of Project Mercury. The company's subsequent Atlas-Centaur design continued this success and derivatives of the design remain in use as of 2020. The company also entered the jet airliner business with its Convair 880 and Convair 990 designs. These were smaller than contemporary aircraft like th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Streak (missile)
The de Havilland Propellers Blue Streak was a British Intermediate-range ballistic missile (IRBM), and later the first stage of the Europa satellite launch vehicle. Blue Streak was cancelled without entering full production. The project was intended to maintain an independent British nuclear deterrent, replacing the V bomber fleet which would become obsolete by 1965. The operational requirement for the missile was issued in 1955 and the design was complete by 1957. During development, it became clear that the missile system was too expensive and too vulnerable to a surprise attack. The missile project was cancelled in 1960, with US-led Skybolt the preferred replacement. Partly to avoid political embarrassment from the cancellation, the UK government proposed that the rocket be used as the first stage of a civilian satellite launcher called Black Prince. As the cost was thought to be too great for the UK alone, international collaboration was sought. This led to the for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aberporth
Aberporth is a seaside village, community and electoral ward in Ceredigion, Wales. The population at the 2001 Census, was 2,485, of whom 49 per cent could speak the Welsh language. At the 2011 Census, the population of the community was 2,374 and of the village 1241. Aberporth's beaches have earned Blue Flag status. Location Aberporth is on the Ceredigion Coast Path, part of the Wales Coast Path, at the southern end of Cardigan Bay, about northeast of Cardigan and southwest of New Quay. The Fishguard to Bangor Trunk Road (A487) is reached via the B4333 road in about . Etymology The name Aberporth is first recorded in 1284, and is derived from the Old Welsh “aber” (mouth) and “porth” (port). History In the 16th century, boats, nets and salt for preserving were brought in from Ireland. Aberporth became a subsidiary port of Cardigan. The landing point developed rapidly in the late 17th and early 18th centuries as local people began to take part in the maritime ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woomera Prohibited Area
The RAAF Woomera Range Complex (WRC) is a major Australian military and civil aerospace facility and operation located in South Australia, approximately north-west of Adelaide. The WRC is operated by the Royal Australian Air Force (RAAF), a division of the Australian Defence Force (ADF). The complex has a land area of or roughly the size of North Korea or Pennsylvania. The airspace above the area is restricted and controlled by the RAAF for safety and security. The WRC is a highly specialised ADF test and evaluation capability operated by the RAAF for the purposes of testing defence materiel. The complex has been variously known as the Anglo-Australian Long Range Weapons Establishment and then the Woomera Rocket Range; the RAAF Woomera Test Range and in 2013, the facility was reorganised and renamed to the RAAF Woomera Range Complex (WRC). The ground area of the WRC is defined by the Woomera Prohibited Area (WPA) and includes the Nurrungar Test Area (NTA); with a land area of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walkden
Walkden is a town in the City of Salford in Greater Manchester, England, northwest of Salford, and of Manchester. Historically in the township of Worsley in Lancashire, Walkden was a centre for coal mining and textile manufacture. In 2014, the electoral wards of Walkden North, Walkden South and Little Hulton had a combined population of 35,616. History The name Walkden or ''Walkeden'' derives from the Old English ''denu'', a valley, belonging to a man possibly called Wealca ( fuller), an Old English personal name. It has been in existence since at least the 13th century. The name was recorded in documents dating to 1246. In the local dialect and accent, it is pronounced Wogden. A Roman road crossed the area roughly on the line of the present A6 road through Walkden and Little Hulton. In 1313, in a dispute involving land, a jury decided that Walkden was too small to be considered a hamlet or a town but was "only a place in Farnworth". In the 15th century Walkden appea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Farnworth
Farnworth is a town in the Metropolitan Borough of Bolton, Greater Manchester, England, southeast of Bolton, 4.3 miles south-west of Bury (7 km), and northwest of Manchester. Historically in Lancashire, Farnworth lies on the River Irwell and River Croal. At the 2011 Census, it had a population of 26,939. History Toponymy Farnworth derives from the Old English ''fearn'', fern and ''worth'' an enclosure. Farnworth was recorded as Farneworth and Farnewrth in 1278 and 1279 and Ffornword in a land survey of 1282. Middle Ages Farnworth was originally a hamlet in Barton. In the 13th century it was held by the Lords of Barton and Manchester. By 1320 Adam Lever, Richard Hulton and Richard Redford held the manor as tenants. Later the manor was acquired by the Hultons of Over Hulton. In 1666 there were 91 hearths in Farnworth liable to pay tax. The commons were enclosed in 1798. There was a watermill on the River Croal. Industrial Revolution The town expanded rapidly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firestreak
The de Havilland Firestreak is a British first-generation, passive infrared homing (heat seeking) air-to-air missile. It was developed by de Havilland Propellers (later Hawker Siddeley) in the early 1950s, entering service in 1957. It was the first such weapon to enter active service with the Royal Air Force (RAF) and Fleet Air Arm, equipping the English Electric Lightning, de Havilland Sea Vixen and Gloster Javelin. It was a rear-aspect, fire and forget pursuit weapon, with a field of attack of 20 degrees either side of the target.Gibson 2007, p. 33 Developed under the rainbow code "Blue Jay", Firestreak was the third heat-seeking missile to enter service, after the US AIM-4 Falcon and AIM-9 Sidewinder, both of which entered service the previous year. In comparison to those designs, the Firestreak was larger and almost twice as heavy, carrying a much larger warhead. It had otherwise similar performance in terms of speed and range. It was also a very complex system, with an u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Jay (missile)
The de Havilland Firestreak is a British first-generation, passive infrared homing (heat seeking) air-to-air missile. It was developed by de Havilland Propellers (later Hawker Siddeley) in the early 1950s, entering service in 1957. It was the first such weapon to enter active service with the Royal Air Force (RAF) and Fleet Air Arm, equipping the English Electric Lightning, de Havilland Sea Vixen and Gloster Javelin. It was a rear-aspect, fire and forget pursuit weapon, with a field of attack of 20 degrees either side of the target.Gibson 2007, p. 33 Developed under the rainbow code "Blue Jay", Firestreak was the third heat-seeking missile to enter service, after the US AIM-4 Falcon and AIM-9 Sidewinder, both of which entered service the previous year. In comparison to those designs, the Firestreak was larger and almost twice as heavy, carrying a much larger warhead. It had otherwise similar performance in terms of speed and range. It was also a very complex system, with an u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
