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List Of De Havilland Aircraft
This is a list of aircraft produced or proposed by Geoffrey de Havilland or designed at the de Havilland Aircraft Company from its founding in 1920 until its purchase by (and integration into) the Hawker Siddeley Group in 1959. The aircraft are ordered by de Havilland model number; The numbers started with de Havilland's employment at Airco company as chief designer. Although Airco ''built'' the planes, their design was owned by de Havilland and when de Havilland started his own company, he continued the numbering. The numbering sequence continued for later designs of de Havilland's aircraft company, even if they were designed by a factory team with little input from de Havilland himself. The DH.89, for example, was the 89th de Havilland design. The designs DH.121 and DH.125 which were under development when de Havilland lost its separate identity under Hawker Siddeley kept their numbering and were produced as the Hawker Siddeley HS-121 Trident and the Hawker Siddeley HS.125. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geoffrey De Havilland
Captain Sir Geoffrey de Havilland, (27 July 1882 – 21 May 1965) was an English aviation pioneer and aerospace engineer. The aircraft company he founded produced the Mosquito, which has been considered the most versatile warplane ever built,Davenport-Hines, Richard. "Havilland, Sir Geoffrey de (1882–1965)." ''Oxford Dictionary of National Biography''. Ed. H.C.G. Matthew and Brian Harrison. Oxford: Oxford University Press, 2004Oxford University and his Comet was the first jet airliner to go into production. Early life Born at Magdala House, Terriers, High Wycombe, Buckinghamshire, de Havilland was the second son of The Reverend Charles de Havilland (1854–1920) and his first wife, Alice Jeannette (née Saunders) (1854–1911). He was educated at Nuneaton Grammar School, St Edward's School, Oxford and the Crystal Palace School of Engineering (from 1900 to 1903). Upon graduating from engineering training, de Havilland pursued a career in automotive engineering, building ... [...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 ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland Gipsy
The de Havilland Gipsy is a British air-cooled four-cylinder in-line aircraft engine designed by Frank Halford in 1927 to replace the ADC Cirrus in the de Havilland DH.60 Moth light biplane. Initially developed as an upright 5 litre (300 cubic inch) capacity engine, later versions were designed to run inverted with increased capacity and power. The Gipsy went on to become one of the most popular sport aircraft engines of the inter-war period and was the engine of choice for various other light aircraft, trainers, liaison aircraft and air taxis, British as well as foreign, until long past World War II. Apart from helping to establish the de Havilland Aircraft Company as a manufacturer of light aircraft, it also established the company as an engine manufacturer in its own right. Gipsy engines remain in service powering vintage light aircraft. Design and development Just like the ADC Cirrus, the Gipsy was born as a collaboration between aircraft manufacturer Geoffre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland Gipsy Moth
The de Havilland DH.60 Moth is a 1920s British two-seat touring and training aircraft that was developed into a series of aircraft by the de Havilland Aircraft Company. Development The DH.60 was developed from the larger DH.51 biplane. The first flight of the ADC Cirrus powered prototype DH.60 Moth (registration ''G-EBKT'') was carried out by Geoffrey de Havilland at the works airfield at Stag Lane on 22 February 1925. The Moth was a two-seat biplane of wooden construction, it had a plywood covered fuselage and fabric covered surfaces, a standard tailplane with a single tailplane and fin. A useful feature of the design was its folding wings which allowed owners to hangar the aircraft in much smaller spaces. The then Secretary of State for Air Sir Samuel Hoare became interested in the aircraft and the Air Ministry subsidised five flying clubs and equipped them with Moths. The prototype was modified with a horn-balanced rudder, as used on the production aircraft, and wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland Moth
The de Havilland Moths were a series of light aircraft, sports planes, and military trainers designed by Geoffrey de Havilland. In the late 1920s and 1930s, they were the most common civilian aircraft flying in Britain, and during that time every light aircraft flying in the UK was commonly referred to as a Moth, regardless if it was de Havilland-built or not. The first Moth was the DH.60 - a straight-winged biplane two-seater. To enable storing the plane in small spaces, the DH.60's wings could fold backwards against the fuselage. "Like a moth" remarked Geoffrey de Havilland, an avid lepidopterist, so the plane was nicknamed Moth from the drawing board on. The Moth was one of the first practical light aircraft designs to be intended for civilian training and recreational use, rather than for military buyers. The Moth was also one of the first light aircraft to be mass produced, and was available to a much wider section of the general public than previous aircraft designs. Fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland Hyena
The de Havilland DH.56 Hyena was a prototype British army cooperation aircraft of the 1920s. A single-engined biplane, the Hyena was designed against an RAF requirement, but was unsuccessful with only two being built, the Armstrong Whitworth Atlas being preferred. Development and design The DH.56 Hyena was developed to meet the requirements of Air Ministry Specification 30/24 for an Army Cooperation aircraft to equip Britain's Royal Air Force. It was a development of de Havilland's earlier DH.42B Dingo, and like the Dingo, was a single-engined two-bay biplane carrying a crew of two. It was armed with a forward-firing Vickers machine gun and a Lewis gun operated by the observer. A hook to pick up messages was fitted beneath the fuselage, while the aircraft was also equipped for photography, artillery spotting, supply dropping and bombing.Jackson 1987, p.213. The first Hyena flew on 17 May 1925, powered by a 385 hp (287 kW) Armstrong Siddeley Jaguar III radial e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland Highclere
The de Havilland DH.54 Highclere was a single-engined 15-passenger biplane airliner designed to replace the DH.34. Its development ended when Imperial Airways decided to use only multi-engined types. Development The DH.54 Highclere was designed to Air Ministry specification 40/22 for a larger version of the very successful DH.34 and the two aircraft had much in common, both in construction and general layout. Compared with the DH.34, the Highclere's passenger complement increased from nine to twelve, its all-up weight by 56% and its wing area by 70%. They were both single-engined two-bay biplanes with fabric-covered wooden wings and with wooden-framed fuselages covered with thin plywood. Size apart, the wings of the Highclere differed in having no stagger, no upper wing dihedral and in having a larger inter-wing gap, the upper wing now attached to the fuselage by cabane struts rather than directly to the upper fuselage. In response to criticism of the DH.34's high landing s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland Humming Bird
The de Havilland DH.53 Humming Bird is a British single-seat, single-engine, low-wing monoplane light aircraft first flown in the 1920s. Design and development In response to the ''Daily Mail'' Light Aeroplane Competition of 1923 de Havilland built two DH.53s which were named ''Humming Bird'' and ''Sylvia II''. The DH.53 was a low-wing single-seat monoplane powered by a Douglas motorcycle engine. At Lympne, in October 1923, the DH.53s did not win any prizes but gave an impressive performance. The Air Ministry became interested in the design and ordered eight in 1924 as communications and training aircraft for the Royal Air Force. Early in 1924 twelve aircraft were built at Stag Lane Aerodrome and were named Humming Bird after the first prototype. Eight aircraft were for the Air Ministry order, three were for export to Australia, and one was exported to Aero in Prague. One further aircraft was later built for an order from Russia. The production aircraft were powered by a B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siddeley Puma
The Siddeley Puma was a British aero engine developed towards the end of World War I and produced by Siddeley-Deasy. The first engines left the production lines of Siddeley-Deasy in Coventry in August 1917, production continued until December 1918. At least 4,288 of the 11,500 ordered engines were delivered, orders were cancelled following the Armistice with Germany (Compiègne), Armistice. Production was continued under the name Armstrong Siddeley Puma when the manufacturer was bought by Armstrong Whitworth and became Armstrong Siddeley. The engine was based on a previous Beardmore Halford Pullinger, B.H.P engine which was also developed as the Galloway "Adriatic." Applications *The Puma engine was used in the British World War I bomber aircraft, the Airco D.H.9. In use it proved to be highly troublesome, making the aircraft significantly inferior to the type it replaced. The engine was also installed untidily, with the cylinder heads protruding. The D.H.9, as a type, was impr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristol Jupiter
The Bristol Jupiter was a British nine-cylinder single-row piston radial engine built by the Bristol Aeroplane Company. Originally designed late in World War I and known as the Cosmos Jupiter, a lengthy series of upgrades and developments turned it into one of the finest engines of its era. The Jupiter was widely used on many aircraft designs during the 1920s and 1930s. Thousands of Jupiters of all versions were produced, both by Bristol and abroad under licence. A turbo-supercharged version of the Jupiter known as the Orion suffered development problems and only a small number were produced. The "Orion" name was later re-used by Bristol for an unrelated turboprop engine. Design and development The Jupiter was designed during World War I by Roy Fedden of Brazil Straker and later Cosmos Engineering. The first Jupiter was completed by Brazil Straker in 1918 and featured three carburettors, each one feeding three of the engine's nine cylinders via a spiral deflector housed ins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland Dormouse
The de Havilland DH.42 Dormouse and its two variants the de Havilland DH.42A Dingo I and II were two-seat single-engined biplanes designed for fighter-reconnaissance and army cooperation roles. They did not achieve production. Development Apart from their engines, the de Havilland DH.42 Dormouse and DH.42A Dingo I were very similar aircraft. The Dormouse was built to Air Ministry specification 22/22 as a two-seat reconnaissance fighter and the Dingo to Specification 8/24 for army cooperation. They were two-bay biplanes with unswept wings of constant chord, though the lower wing was slightly smaller in span and only about 73% of the chord when compared to the upper one. The two trailing edges were in line and the trailing struts vertical, but the forward struts were forward-raked. Both wings carried unbalanced ailerons. The vertical tail had the characteristic DH shape, with a balanced rudder; the elevators were unbalanced. The structure throughout was wood, with fabric cove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armstrong Siddeley Jaguar
The Armstrong Siddeley Jaguar was an aircraft engine developed by Armstrong Siddeley. The Jaguar was a petrol-fuelled air-cooled 14-cylinder two-row radial engine design. The Jaguar III was first used in 1923, followed in 1925 by the Jaguar IV and in 1927 by the Jaguar VI. In 1925 the Jaguar became the first production aero engine incorporating a geared supercharger. Design and development The Jaguar was developed from the Royal Aircraft Factory RAF.8 design proposal of 1917, and was engineered to use a gear-driven supercharger. First run on 21 June 1922 initial performance was not as expected; as a result the stroke was increased to 5.5 in (139.7 mm) on all variants after the Jaguar I. Throughout its career the Jaguar suffered from vibration due to a lack of a crankshaft centre bearing. The most powerful version of the engine, the Jaguar VIC, produced a maximum of 490 hp (365 kW) on takeoff at 1,950 rpm and weighed 910 lb (413 kg). The later Lyn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
