Gnosspelius Gull

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Gull
Gnosspelius Gull (G-EBGN), Lympne, 1923
Role Ultra-light monoplane
National origin United Kingdom
Manufacturer Short Brothers
Designer Oscar Gnosspelius
First flight 26 May 1923
Number built 2

The Gnosspelius Gull was a 1920s British experimental ultra-light monoplane designed by Major O.T. Gnosspelius and built by Short Brothers at Rochester for the 1923 Lympne light aircraft trials.[1]

Development

Gnosspelius was head of the research department of Short Brothers, for whom he had devised an ingenious mechanism for testing aerofoil sections, the Gnosspelius Aerodynamic Pendulum.

drag, and Gnosspelius had started work on the design of a small glider using this discovery when, in early 1923, two prizes intended to promote the development of light aircraft
were announced.

He accordingly revised his design to use a 679 cc

chord centre section and outer sections with the leading edge swept-back to meet the fourth wing spar at the tip. The engine was mounted on duralumin
bearers between the two centre spars. Wide-span ailerons were hinged to the rearmost wing spar, operated by torque-tubes with dog clutches at the junction between the centre section and the removable outer panels. The fixed undercarriage consisted of a pair of wheels on a short axle carried inside the fuselage, the lower part of the wheels projecting through slots.

Two aircraft were built by Shorts and the first one, registered G-EBGN, first flew on 26 May 1923 piloted by Short test pilot John Lankester Parker.[1] The second aircraft was unregistered and was flown at Lympne as No. 19; it crashed at Cramlington on 18 June 1926 killing the pilot.[1]

Specifications

Data from [1]

General characteristics

  • Crew: 1
  • Length: 19 ft 6 in (5.94 m)
  • Wingspan: 36 ft 4 in (11.07 m)
  • Airfoil: RAF 19
  • Empty weight: 360 lb (163 kg)
  • Gross weight: 570 lb (259 kg)
  • Powerplant: 1 ×
    V-twin
    , 26 hp (19 kW)

Performance

  • Maximum speed: 70 mph (110 km/h, 61 kn)
  • Cruise speed: 45 mph (72 km/h, 39 kn)

Notes

  1. ^ a b c d e Jackson 1974, page 315
  2. ^ Experimental Data Without a Wind ChannelFlight International 21 December 1921

References

  • Barnes, C.H. (1967). Shorts Aircraft since 1900. London: Putnam. pp. 174–179.
  • Jackson, A.J. (1974). British Civil Aircraft since 1919 Volume 2. London: Putnam. p. 382. .

External links