Sunbeam Spartan
| Company type | Aero engine |
|---|---|
| Industry | Aviation |
| Founded | 1916 |
| Founder | Louis Coatalen |
| Products | 12-cylinder air-cooled V-12 aero engine |
The Sunbeam Spartan was a British aero engine with 12 cylinders, developed and manufactured in 1916.
Design and development
Although Louis Coatalen mainly concentrated on water-cooled powerplants, he created the air-cooled V-12 Spartan engine. This unit had a bore of , a stroke of , and a total displacement of , delivering . Power was transmitted to the propeller via a reduction gearbox. The engine utilized a single overhead camshaft that controlled two intake valves and two exhaust valves per cylinder through rocker arms. Ignition came from two separate 6-cylinder magnetos, each responsible for firing one spark plug in every cylinder.
See also
Bibliography
- The Illustrated Encyclopedia of Aircraft, Aerospace Publishing, London
- Lumsden, Alec. British Piston Engines and their Aircraft, Airlife Publishing, 2003. ISBN 1-85310-294-6
- Brew, Alec. Sunbeam Aero-engines, Airlife Publishing, 1998. ISBN 1-84037-023-8