Bristol Draco
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The Bristol Draco was an air-cooled 9-cylinder radial engine from the British manufacturer Bristol Aeroplane Company. It was essentially a version of their famous Jupiter converted to use a fuel injection system.
The carburetor had only a simple butterfly valve, while two injection pumps supplied the cylinders with fuel: one handling four and one five cylinders. Injection was into the manifold before they split into the two intake valves for each cylinder. The engine was flight tested in a Westland Wapiti. Since the expenditure did not bring considerable improvements the development was stopped.
[edit] Specifications
- Bore: 5.75 in (146 mm)
- Stroke: 7.5 in (190.5 mm)
- Capacity: 1,750 in³ (28.7 L)
- Compression: 5.3:1
- Propeller reduction: 0.5:1
- Diameter: 1,410 mm
- Length: 1,105 mm
- Continuous duty: 540 hp
[edit] References
- "British Piston aero Engines and their aircraft", Alec Lumsden, ISBN 1853102946
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