Armstrong Siddeley Ounce
The Armstrong Siddeley Ounce is an aircraft engine that the British manufacturer Armstrong Siddeley built from 1920. The 2-cylinder boxer engine had a displacement of 3212 cm³. This engine was only supposed to be used for testing purposes, but it ran so well that it was mass-produced. It was used to drive early ultralight aircraft and target display drones . The Ounce used two cylinders from the Jaguar I radial engine that was built earlier .
Aircraft with Armstrong Siddeley Ounce
Data (ounce)
General
- 2-cylinder boxer engine, air-cooled, with supercharging
- Bore: 127 mm
- Stroke: 127 mm
- Displacement: 3212 cm³
- Length: 521 mm
- Width: 1003 mm
- Height: 622 mm
- Weight: 77 kg
Components
- Valve train: Two overhead valves per cylinder
- Mixture preparation: carburettor
- Cooling: air
- Reduction gear: no
power
- Power: 45 bhp (33.5 kW) at 1500 rpm at sea level
- Output per liter: 10.43 kW / L
- Compression: 5: 1
- Power-to-weight ratio : 2.3 kg / kW
Individual evidence
- ^ Bill Gunston: World Encyclopedia of Aero Engines . Patrick Stephens, Cambridge 1989. ISBN 1-85260-163-9 . P. 18.
- ^ Alec Lumsden: British Piston Engines and their Aircraft . Airlife Publishing, Marlborough, Wiltshire 2003. ISBN 1-85310-294-6 . P. 66.
literature
- Alec Lumsdem: British Piston Engines and their Aircraft . Airlife Publishing, Marlborough 2003. ISBN 1-85310-294-6 .
- Bill Gunston: World Encyclopedia of Aero Engines . Patrick Stephens, Wellingborough 1986. ISBN 0-7509-4479-X . P. 18.
Web links
Commons : Armstrong Siddeley Ounce - Collection of Images, Videos and Audio Files
- B1460 Aircraft engine, Armstrong Siddeley "Ounce", metal, Armstrong Siddeley Motors Limited, Coventry, England, c. 1920 . Power House Museum, Sydney . Photo and description. Retrieved November 5, 2014.