Farman 12We
1920s French piston aircraft engine
From Wikipedia, the free encyclopedia
The Farman 12We was a French 12-cylinder broad arrow configuration aircraft engine that was designed and built by Farman in the early 1920s. Power output was 370 kilowatts (500 hp).
| 12We | |
|---|---|
| Farman 12We on display at Deutsches Museum Flugwerft Schleissheim | |
| Type | Piston aero engine |
| Manufacturer | Farman Aviation Works |
| First run | October 1922 (First flight) |
| Major applications | Farman F.60 Goliath |
Design and development
The Farman company developed and produced aero engines from 1915; the 12We was the company's most produced engine. Following the cylinder layout of the Napier Lion this engine featured three banks of four cylinders and employed water cooling.[1]
The 12We was first flown in a Farman F.60 Goliath in October 1922 and later set a distance record powering a Farman F.62 in 1924, the engine ran continuously for 38 hours.[2]
Variants
- 12Wers
- with 0.5:1 reduction gear and KP24 supercharger.
Applications
Engines on display
Preserved Farman 12We engines are on static display at the following museums:
Specifications
Data from Gunston.[1]
General characteristics
- Type: 12-cylinder water-cooled W-block (3 banks of 4 cylinders) aircraft piston engine
- Bore: 130 mm (5.1 in)
- Stroke: 160 mm (6.3 in)
- Displacement: 25.48 L (1,555 cu in)
- Dry weight: 470 kg (1,036 lb)
Components
- Valvetrain: Overhead valve
- Cooling system: Water-cooled
Performance
- Power output: 373 kW (500 hp) at 2,150 rpm
