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The Sopwith Grasshopper was a British two-seat touring biplane built by the Sopwith Aviation and Engineering Company at Kingston upon Thames in 1919.

Development

The Grasshopper was a conventional two-seat open-cockpit biplane, with a nose-mounted 100 hp (75 kW) Anzani engine. Only one aircraft was built, registered G-EAIN, which obtained its Certificate of Airworthiness in March 1920. It passed through a number of private operators until 1929 when the Certificate was not renewed. The last owner had been Constance Leathart.

Specifications

Data from

General characteristics

• Crew: 1
• Capacity: 1
• Length: 23 ft 1 in (7.04 m)
• Wingspan: 33 ft 1 in (10.09 m)
• Height: 9 ft 0 in (2.74 m)
• Wing area: 312 sq ft (30.0 m)
• Gross weight: 1,670 lb (758 kg)
• Powerplant: 1 × Anzani 10 , 100 hp (75 kW)

Performance

• Maximum speed: 90 mph (144 km/h, 78 kn)

References

Notes

1. ^ Jackson 1974, p. 309
2. "Register Entry for G-EAIN" (PDF). G-INFO. UK Civil Aviation Authority. Retrieved 8 January 2023.
3. ^ Robertson 1970, pp. 236-237.

Bibliography

• Jackson, A.J. (1974). British Civil Aircraft since 1919 Volume 3. London: Putnam. ISBN 0-370-10014-X.
• Robertson, Bruce (1970). Sopwith-The Man and his Aircraft. Letchworth, UK: Air Review. ISBN 0-900435-15-1.

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