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Cygnet
Hawker Cygnet Cosford crop.jpg
Hawker Cygnet G-EBMB at RAF Museum, Cosford
Role light competition aircraft
Manufacturer Hawker Engineering Co.
Designer Sydney Camm
First flight 1924
Number built 2

The Hawker Cygnet was a British ultralight biplane aircraft of the 1920s.

Background[edit]

In 1924, the Royal Aero Club organized a Light Aircraft Competition. £3000 was offered in prizes. An entry was made by Hawker Aircraft, which was a design by Sydney Camm, the Cygnet. Camm had joined Hawker the previous year. Two aircraft were built (G-EBMB and G-EBJH) and were entered in the competition, held in 1924 at Lympne Aerodrome, by T. O. M. Sopwith and Fred Sigrist. The aircraft were flown by Longton and Raynham and came in 4th and 3rd places respectively. In 1925, G-EBMB was entered again in the 100 mi (161 km) International Handicap Race, this time flown by George Bulman, who won at a speed of 75.6 mph (121.7 km/h). At the same meeting, the Cygnet came 2nd in the 50 mi (80 km) Light Aeroplane Race. In 1926, both aircraft were entered in the competition piloted by Bulman and Flying Officer Ragg, taking first and second place respectively.

HCygnet.jpg

Design[edit]

The aircraft were of wood and fabric construction, the fuselage being four longerons strutted in the fashion of a Warren girder. The wing was two box spars with Warren truss ribs. Initially the two aircraft were powered one by an Anzani and the other by an ABC Scorpion (both opposed twin cylinder engines). In 1926 the engines in both Cygnets were changed to Bristol Cherub III another two-cylinder engine. The airframe weighed a remarkably low 270 lb, and its weight when empty was only 373 lb.

Postwar history[edit]

The surviving Cygnet on display in airworthy condition at Coventry Airport in 1954
Hawker Cygnet (Shuttleworth Collection, replica 1993)

G-EBMB was kept by Hawker in storage until 1946, when it was refurbished and reassembled at Hawker's Langley Aerodrome. It was later transferred to their new facility at Dunsfold, where it stayed, being flown to various displays and airshows, until 1972, when it was transferred for exhibition at the Royal Air Force Museum at Hendon.[1] More recently it has been transferred to its site at RAF Cosford in Shropshire, where it can now be seen.[2] An airworthy replica is on display at the Shuttleworth Collection, Old Warden, Bedfordshire.[3]

Specifications[edit]

Data from Hawker Aircraft since 1920 [1]

General characteristics

  • Crew: Two
  • Length: 20 ft 5 in (6.22 m)
  • Wingspan: 28 ft 0 in (8.52 m)
  • Height: 5 ft 10 in (1.78 m)
  • Wing area: 165 ft² (15.3 m²)
  • Empty weight: 373 lb (170 kg)
  • Loaded weight: 950 lb (432 kg)
  • Powerplant: 1 × Bristol Cherub III 2 cylinder piston engine, 34 hp (25 kW)

Performance

See also[edit]

Aircraft of comparable role, configuration and era
Related lists

References[edit]

Notes[edit]

  1. ^ a b Mason 1991, p.111.
  2. ^ "Hawker Cygnet airplane pictures & aircraft photos - RAF Museums" RAF Museum. Retrieved 16 August 2008.
  3. ^ Aircraft: 1924-Hawker Cygnet. Shuttleworth Collection. Retrieved 16 August 2008.
  4. ^ Absolute ceiling.

Bibliography[edit]

External links[edit]


Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Hawker_Cygnet — Please support Wikipedia.
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