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de Havilland

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de Havilland Aircraft Company
de Havilland logo
Type defunct
Founded 1920
Headquarters Template:Country data UK Hatfield, England, UK
Key peopleGeoffrey de Havilland, founder
Industryaerospace
Productscivil and military aircraft
ParentHawker Siddeley (from 1959)
Subsidiariesde Havilland Canada (1928)
de Havilland Australia (1927)
Airspeed Ltd.

Template:Otheruse

The de Havilland Aircraft Company was a British aviation manufacturer founded in 1920, when Airco of which Geoffrey de Havilland had been chief designer and owner was sold to BSA. De Havilland then set up a company under his name in September that year at Stag Lane Aerodrome in Edgware, England. It later moved to Hatfield, in Hertfordshire, England. The company was responsible for producing the first passenger jet and other innovative aircraft.

History

Initially, de Havilland concentrated on single and two-seat biplanes, essentially continuing the DH line of aircraft built by Airco, but powered by de Havilland's own Gipsy engines. These included the Gipsy and Tiger Moths. These aircraft set many aviation records, many piloted by de Havilland himself. Amy Johnson flew solo from England to Australia in a Gipsy Moth in 1930, the flight taking 19.5 days.

The Moth line of aircraft continued with the more refined (and enclosed) Hornet Moth and Moth Minor, the latter being a low-wing monoplane constructed of wood. One of de Havilland's trademarks was that the name of the aircraft type was painted on using a particularly elegant Roman typeface, all in capital letters. When there was a strike at the plant, the artisans who painted the name on the planes used the same typeface to make the workers' protest signs.

The DH 84 Dragon was the first aircraft purchased by Aer Lingus, who later operated the DH 84B Dragon Express and the DH 89 Dragon Rapide. de Havilland continued to produce high-performance aircraft including the high-speed twin-piston-engine DH 88 Comet mail plane, one of which became famous in its red livery as the winner of the MacRobertson Air Race from England to Australia.

The high-performance designs and wooden construction methods culminated in perhaps the most famous de Havilland aircraft — the Mosquito, constructed primarily of wood because of the shortage of aluminium during the Second World War. The company followed this with the even higher-performing Hornet, which was one of the pioneers of the use of metal-wood and metal-metal bonding techniques.

After the Second World War, de Havilland continued with leading-edge designs in both the military and civil field, but several public disasters doomed the company as an independent entity. The experimental, tailless, jet-powered de Havilland DH 108 Swallow crashed in the Thames Estuary, killing Geoffrey de Havilland Jr, son of the company's founder. The de Havilland Comet was put into service in 1952 as the eagerly-anticipated first commercial jet airliner, twice as fast as previous alternatives and a source of British national pride. The Comet suffered three tragic and high-profile crashes in two years. Less well known, but equally disastrous, was the explosion of the DH 110 Sea Vixen prototype during the 1952 Farnborough Air Show, which also killed members of the public.

Hawker Siddeley bought de Havilland in 1960 but kept it as a separate company until 1963. In that year it became the de Havilland Division of Hawker Siddeley Aviation[1] and all types in production or development changed their designations from "DH' to "HS" (see Hawker Siddeley Trident, BAe 146 and BAe 125). The famous "DH" and the de Havilland name live on, with several hundred Moths of various types and substantial numbers of many of the company's other designs still flying all over the world.[2]

Template:BAE Systems evolution

de Havilland aircraft

File:Dh.dove.750pix.jpg
de Havilland Dove.
File:Dh.foxmoth.750pix.jpg
de Havilland DH 83 Fox Moth.
File:De Havilland Mosquito B.35.JPG
de Havilland Mosquito B 35 (reconfigured to a FB Mk.VI, on display at the Alberta Aviation Museum).
Main article: List of de Havilland aircraft

Examples are on display at the de Havilland Aircraft Heritage Centre.

de Havilland Weapon Systems

de Havilland Canada

File:Dehav.dash8.750pix.jpg
Bombardier (de Havilland Canada) Dash 8 of British European Airlines.
File:C-FGYN Adlair Aviation de Havilland Beaver (DHC2) 01.jpg.jpg
C-FGYN Adlair Aviation Ltd. de Havilland Beaver (DHC2) Mk I on floats
DHC-8 at Bristol Airport.

de Havilland Canada was formed in 1928 to build Moth aircraft for the training of Canadian airmen and continued after the war to build its own designs suited to the harsh Canadian operating environment. These are listed below. The DHC-2 through DHC-7 aircraft were all STOL designs. de Havilland (Canada) was eventually incorporated into the Bombardier group of companies and the Dash Eight remains in production with a particular emphasis being placed on its quiet operation in comparison to other aircraft of a similar size. In May 2005, Bombardier sold the rights to the out-of-production aircraft (DHC-1 through DHC-7) to Viking Air Ltd. of Sidney, British Columbia.

Aircraft produced by de Havilland (Canada) Aircraft include (chronologically):

de Havilland Australia

The first foreign subsidiary was set up in Australia in March 1927 as de Havilland Aircraft Pty. Ltd. The company moved from Melbourne to Sydney during 1930 where it acted as an agency for the parent company, with assembly, repair and spares facilities for the company's popular sporting and airliner types. Aircraft design and full manufacture by de Havilland Australia (DHA) did not take place until the Second World War, when the company began production of the DH 82 Tiger Moth primary trainer at Bankstown, NSW.

During the Second World War, DHA designed a small troop-carrying glider to be used if Australia was invaded by Japan. The DH-G1 emerged in mid-1942 and utilised the DH 84 Dragon forward fuselage, which was in production at the same factory. The two built served as prototypes for the definitive DH-G2 produced the following year but the need had passed by this time and only six DH-G2s were built. The company also began to manufacture the Mosquito, with deliveries to the RAAF being first made in 1944. A total of 212 Mosquitos were built at Bankstown between 1943 and 1948. Some of these aircraft continued in RAAF service until 1953.

Licenced production of the de Havilland Vampire began in 1948, with the first of 190 built flying in 1949.

Another DHA design, the de Havilland DHA-3 Drover, was manufactured between 1948 and 1953. Only 20 were produced, mostly for the Royal Flying Doctor Service (RFDS), Trans Australia Airlines and Qantas. The DHA-3 Drover was a 3-engined light transport derived from the DH 104 Dove, capable of carrying six-eight passengers. It was designed as a replacement for the DH 84 Dragon, which was common in Australia due to its wartime production by DHA. The engine chosen for the new design was the de Havilland Gipsy Major Mk-10 4s. Several Drovers were later re-engined with more powerful Lycoming O-360 horizontally-opposed engines to improve performance.

The de Havilland Australia concern is now owned by Boeing Australia and is known as Hawker de Havilland Aerospace.

de Havilland engines

Main article: de Havilland Engine Company

As well as a prolific aircraft builder, de Havilland was also a significant producer of aero engines. This went against usual practice- usually engines are designed and produced by a dedicated company though in the UK Bristol Aeroplane had a substantial engine business and Armstrong Whitworth Aircraft was part of the same business as Armstrong-Siddeley[3] The successful "Gipsy" and the later developments such as the Gipsy Major were successful and popular power units, being used in nearly all of de Havilland's light designs and several aircraft from other manufacturers. Gipsy engines were relatively unusual by the 1930s/40s because they were in-line engines, at a time when radial or opposed-action engine layouts were more popular. The de Havilland company was also a competitor to Rolls-Royce and Metrovick in the early years of the jet engine development. Employing the services of Frank Halford then buying out his company they produced the de Havilland Goblin and de Havilland Ghost engines for first their jet fighters then the Comet.

File:Dehav.sea.vixen.folded.arp.jpg
A privately owned de Havilland Sea Vixen (G-CVIX) at an air show in 2005.

Tributes

The site of the former Hatfield Aerodrome, where de Havilland was based, is now used by the University of Hertfordshire for its de Havilland campus, which opened in 2003. The site also includes a business park. In addition to the university campus, there are several streets in the area named after de Havilland aircraft.[4]*

References

Notes
  1. ↑ RAF Museum website de Havilland History page Access date: 12 August 2007
  2. ↑ Landings.com Australia, Canada, New Zealand, UK & US Civil Aircraft Register databases. Access date: 12 August 2007
  3. ↑ After 1935, both part of the Hawker group.
  4. ↑ News Search
Bibliography
  • Bain, Gordon. De Havilland: A Pictorial Tribute. London: AirLife, 1992. ISBN 1-85648-243-X.
  • Bransom, Alan. The Tiger Moth Story, Fifth Edition. Manchester, UK: Crécy Publishing Ltd., 2005. ISBN 0-859791-03-3.
  • Hotson, Fred. The De Havilland Canada Story. Toronto: CANAV Books, 1983. ISBN 0-9690703-2-2.

External links

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da:De Havilland Aircraft Company de:De Havilland Aircraft Company es:De Havilland fr:De Havilland he:דה הווילנד nl:De Havilland ja:デハビランド no:De Havilland pl:De Havilland pt:De Havilland fi:De Havilland sv:De Havilland

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