Bristol Draco
The Bristol Draco is one of the air-cooled 9-cylinder radial engines made by the British manufacturer Bristol Airplane Company . For experimental purposes, it was equipped with fuel injection in the 1930s. A loader ensured better high-altitude performance.
history
The Bristol Pegasus IM.3 formed the basis for the development of the Draco . The carburetor only had a simple throttle valve, while two in-line injection pumps supplied four or five cylinders with fuel. The injection took place in the intake tract before the fork of the intake manifold to the two intake valves of each cylinder. The engine was installed and tested in flight tests in a Westland Wapiti . Since the expenditure for the injection did not bring any significant improvements, the tests were discontinued. Both the engine and these tests remained largely unknown, but had an impact on further engine development in Great Britain.
Technical specifications
- Bore: 146 mm
- Stroke: 190.5 mm
- Displacement: 28.7 l
- Compression: 5.3: 1
- Propeller reduction: 0.5: 1
- Diameter: 1410 mm
- Length: 1105 mm
- Continuous power: 540 hp
swell
- "British Piston Aero Engines and their Aircraft," Alec Lumsden, ISBN 1853102946