Blackburne Thrush

Thrush
Blackburne Thrush engine preserved at the Shuttleworth Collection
Type	Air-cooled radial
National origin	United Kingdom
Manufacturer	Burney and Blackburne Limited
First run	1924

The Blackburne Thrush was a 1,500 cc three-cylinder radial aero-engine for light aircraft produced by Burney and Blackburne Limited. Burney and Blackburne were based at Bookham, Surrey, England and was a former motorcycle manufacturer.

First produced in 1926 the engine was based on an earlier 1924 design with improvements to allow use on light aircraft.

Applications

• ANEC IV
• Blackburn Bluebird
• Clarke Cheetah
• Cranwell CLA.4
• Parnall Pixie
• Supermarine Sparrow
• Vickers Vagabond
• Westland Widgeon

Specifications (Thrush)

Data from Lumsden[1]

General characteristics

• Type: 3-cylinder air-cooled radial
• Bore: 3.16 in (81 mm)
• Stroke: 3.78 in (96.8 mm)
• Displacement: 88.97 cu in (1.5 L)
• Dry weight: 132 lb (60 kg)

Components

• Valvetrain: Overhead poppet valve
• Cooling system: Air-cooled

Performance

• Power output: 35 hp (26 kW)
• Power-to-weight ratio: 0.26 hp/lb

See also

Related development

• Blackburne Tomtit

Comparable engines

• Bristol Lucifer
• Salmson AD.3

Related lists

• List of aircraft engines

References

Notes

1. Lumsden 2003, p. 91.

Bibliography

• Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.

External links

• Flight, 7 January 1926 - The Blackburne "Thrush" Light 'plane engine