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The de Havilland Ghost was a British V-8 aero engine that first ran in 1928.

Ghost
Type	Air-cooled V-8 piston engine
National origin	United Kingdom
Manufacturer	de Havilland
First run	1928
Major applications	de Havilland Hawk Moth
Developed from	ADC Cirrus

Design and development

Designed by Geoffrey de Havilland the 'Ghost' was developed from the ADC Cirrus aero engine by using two banks of four cylinders. This appeared at first to be a retrograde step as the Cirrus was itself developed from the Renault 80 hp V8 engine however with the improved Cirrus cylinders the Ghost developed over twice the power of the French engine for a lower weight. Another difference from the Renault was the use of a propeller reduction gear, the Ghost's sole known aircraft application was the prototype de Havilland Hawk Moth high-wing cabin monoplane.[1]

Specifications (Ghost)

General characteristics

• Type: Inline air-cooled, upright, 90-degree, V-8 piston engine
• Bore: 4.5 in (114 mm)
• Stroke: 5.0 in (128 mm)
• Displacement: 498.56 cu in (8.17 L)
• Designer: Geoffrey de Havilland

Components

• Valvetrain: One inlet and one exhaust valve per cylinder
• Fuel system: Carburettor
• Fuel type: 74 octane petrol
• Cooling system: Air-cooled
• Reduction gear: Spur geared, right hand tractor

Performance

• Power output: 198 hp (148 kW)
• Compression ratio: 5:1

See also

Related development

• ADC Cirrus

Related lists

• List of aircraft engines

References

Notes

Bibliography

External links

• Image of the de Havilland Ghost installed in a Hawk Moth - Flight, February 1929

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