Blackburne Thrush

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.

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

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