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de Havilland Ghost (V8)

 

Designed by Geoffrey de Havilland the air-cooled V-8 'Ghost' was developed from the ADC Cirrus aero engine by using two banks of four cylinders and first run in 1928. 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.
 
Specifications:
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
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
Power output: 198 hp (148 kW)
Compression ratio: 5:1

 

 


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