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Encyclopedia > De Havilland Swallow
The first DH. 108 built - TG283. The torpedo-shaped objects on the wing tips are containers for anti-spin parachutes
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The first DH. 108 built - TG283. The torpedo-shaped objects on the wing tips are containers for anti-spin parachutes

The de Havilland DH.108 "Swallow" was an experimental aircraft designed in October 1945. A flying wing, it was designed to evaluate swept-wing handling characteristics at subsonic speeds. In flying, a spin is a special case of a stall, with the aircraft descending rapidly and rotating about a vertical axis. ... Until 1920, Geoffrey de Havillands de Havilland Aircraft Company had been known as Airco, where he was owner and chief designer. ... In generic use, an experimental aircraft is an aircraft that has not yet been fully proven in flight. ... This is a list of aviation-related events from 1945: // Events January January 1 - the Luftwaffe begins targeting Allied airfields in Europe as Operation Bodenplatte February February 13-15 - Allied bombers attack Dresden with incendiary weapons, destroying most of the city and killing some 50,000 people. ... A flying wing is a type of aircraft design with no tail, one in which the majority of the fuselage is inside a thickened wing. ... The swept wing of an airliner: British Midland Airbus A320-200 A swept-wing is a wing planform used on high-speed aircraft that spend a considerable portion of their flight time in the transonic. ...

Contents


Development

The first DH.108 prototype, TG283, utilizing the de Havilland Vampire fuselage and a 43° swept wing flew on May 15, 1946. It was capable of only 280 mph (451 km/h) and was lost in a crash on May 1, 1950. The second prototype, TG306, with a 45° swept wing with automatic leading-edge slats and a de Havilland Goblin 3 turbojet flew in June 1946. It was expected to break the air speed record of the day, 616 mph (991 km/h). Unfortunately, on September 27, 1946, the airframe suffered a catastrophic structural failure at Mach 0.9. Pilot Geoffrey de Havilland Jr, son of de Havilland owner-designer Geoffrey de Havilland was killed in the accident. VW120, the third and final prototype with a more pointed nose and aerodynamic canopy first flew on July 24, 1947. On April 12, 1948 this aircraft established a new world speed record on a 100 km (62 mi) circuit of 974.02 km/h (604.98 mph). Then, on September 9, 1948 it exceeded the speed of sound in a shallow dive from 12,195 m (40,000) ft to 9,145 m (30,000) ft. The first British aircraft to exceed Mach 1, the DH.108 was also the first jet-powered aircraft in the world to do so, as the earlier Bell X-1 and Douglas Skyrocket were rocket-powered. The third prototype was also lost in a crash. Prototypes or prototypical instances combine the most representative attributes of a category. ... A Royal Canadian Air Force deHavilland Vampire The de Havilland Vampire, or DH.100, was the second jet engined aircraft commissioned by the Royal Air Force during WW II, although it never saw combat. ... This is a list of aviation-related events from 1946: // Events January January 1 - a British South American Airways Avro Lancastrian becomes the first commercial flight to depart Heathrow Airport January 10 - a Sikorsky R5 sets an unofficial helicopter altitude record of 6,400 m (21,000 ft) at Stratford... May 1 is the 121st day of the year in the Gregorian calendar (122nd in leap years). ... This is a list of aviation-related events from 1950: Events Arrow Air is founded March March 20 - Royal Air Force Avro Lincoln bombers are sent to Singapore to be used against the Communist guerillas of Malaya in the Malayan Emergency. ... Cutaway Goblin II A cutaway diagram of the internal workings of the de Havilland Goblin, as fitted to the Vampire. ... Turbojets are the simplest and oldest kind of general purpose jet engine. ... This is a list of aviation-related events from 1946: // Events January January 1 - a British South American Airways Avro Lancastrian becomes the first commercial flight to depart Heathrow Airport January 10 - a Sikorsky R5 sets an unofficial helicopter altitude record of 6,400 m (21,000 ft) at Stratford... Airframe is a novel by renowned author Michael Crichton first published in hardback edition in 1996 and as a paperback edition in 1997. ... Mach number (Ma) (pronounced mack in British English and mock in American English) is defined as a ratio of speed to the speed of sound in the medium in case. ... Sir Geoffrey de Havilland (July 27, 1882 - May 21, 1965) was one of Englands aviation pioneers. ... This is a list of aviation-related events from 1947: Events March March 14 - Saudi Arabian Airlines begins regular services. ... This is a list of aviation-related events from 1948: Events January January 17 - BOAC begins to replace flying boat routes with the Lockheed Constellation March the Israeli Air Force is formed, with the new state of Israel March 10 - VF-5 becomes the first US Navy carrier squadron to... This is a list of aviation-related events from 1948: Events January January 17 - BOAC begins to replace flying boat routes with the Lockheed Constellation March the Israeli Air Force is formed, with the new state of Israel March 10 - VF-5 becomes the first US Navy carrier squadron to... The Bell X-1 was the first aircraft to exceed the speed of sound in controlled, level flight. ... Douglas Skyrocket D-558-II The Douglas Skyrocket (the D-558-2) was a rocket-powered research aircraft built by the Douglas Aircraft Company for the U.S. Navy. ... A Redstone rocket, part of the Mercury program A rocket is a vehicle, missile or aircraft which obtains thrust by the reaction to the ejection of fast moving exhaust gas from within a rocket engine. ...


Specifications (DH.108 3rd prototype)

General characteristics

  • Crew: One
  • Length: 8.17 m (26 ft 10 in)
  • Wingspan: 11.89 m (39 ft 0 in)
  • Height: 4.27 m (14 ft 0 in)
  • Wing area: 30.47 m² (327.86 ft²)
  • Loaded weight: 4,064 kg (8,940 lb)
  • Powerplant: 1x de Havilland Goblin 4, 16.67 kN (3,738 lbf) thrust

Cutaway Goblin II A cutaway diagram of the internal workings of the de Havilland Goblin, as fitted to the Vampire. ...

Performance

  • Maximum speed: 1,090 km/h (677 mph)
  • Service ceiling: 10,800 m (35,425 ft)
  • Wing loading: 133 kg/m² (27 lb/ft²)
  • Thrust/weight: 0.42

In aerodynamics, wing loading is the loaded weight of the aircraft divided by the area of the wing. ...

References

  • Unreal Aircraft. "Weird Wings - de Havilland DH.108". Retrieved 4 September 2005.

Related content

Designation sequence

DH.103 - DH.104 - DH.106 - DH.108 - DH.110 - DH.112 - DH.113 The The de Havilland Hornet was a development of de Havillands classic Mosquito designed as private venture for a long-range fighter for use in the Pacific Theater in the war against Japan. ... The de Havilland DH.104 Dove was a monoplane short-haul airliner, the successor to the bi-plane De Havilland Dragon Rapide and was one of Britains most successful post-war civil designs. ... This article deals with the de Havilland Comet jet airliner. ... The correct title of this article is de Havilland Sea Vixen. ... The de Havilland DH.112 Venom was a post- war jet single-seat fighter-bomber of the Royal Air Force. ... A Royal Canadian Air Force deHavilland Vampire The de Havilland Vampire, or DH.100, was the second jet engined aircraft commissioned by the Royal Air Force during WW II, although it never saw combat. ...

Related development

Similar aircraft

Bell X-1 - Douglas Skyrocket The Bell X-1 was the first aircraft to exceed the speed of sound in controlled, level flight. ... Douglas Skyrocket D-558-II The Douglas Skyrocket (the D-558-2) was a rocket-powered research aircraft built by the Douglas Aircraft Company for the U.S. Navy. ...

Related lists

See also

External links


Lists of Aircraft | Aircraft manufacturers | Aircraft engines | Aircraft engine manufacturers This list of aircraft is sorted alphabetically, beginning with the name of the manufacturer (or, in certain cases, designer). ... This is a list of aircraft manufacturers (in alphabetic order). ... List of aircraft engines: // Piston engines Allison V-1710 Alvis Leonides Armstrong-Siddeley Puma Armstrong-Siddeley Cheetah Armstrong-Siddeley Nimbus Bentley BR1 Rotary BMW 801 Bristol Aquila Bristol Centaurus Bristol Hercules Bristol Jupiter Bristol Pegasus Bristol Perseus Bristol Phoenix Bristol Taurus Bristol Titan Bristol Hydra Bristol Mercury Clerget rotary Continental... This is a list of aircraft engine manufacturers both past and present. ...


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