| 120 hp | |
|---|---|
 | |
| Preserved Beardmore 120 hp. | |
| Type | Piston aero engine |
| Manufacturer | William Beardmore and Company |
| First run | c.1914 |
| Major applications | Airco DH.1 |
| Number built | 400 |
| Developed from | Austro-Daimler 6 |
| Developed into | Beardmore 160 hp |
The Beardmore 120 hp was a British six-cylinder, water-cooled aero engine that first ran in 1914, it was built by William Beardmore and Company as a licensed-built version of the Austro-Daimler 6. The engine featured cast iron cylinders and mild steel concave pistons. Produced between August 1914 and December 1918, the design powered many World War I aircraft types.[1]
Applications
Specifications (120 hp)
Data from Lumsden[2]
General characteristics
- Type: 6-cylinder, inline, upright piston engine
- Bore: 5.12 in (130 mm)
- Stroke: 6.89 in (175 mm)
- Displacement: 851 cu in (13.145 L)
- Length: 57 in (1,148 mm)
- Width: 19.9 in (505 mm)
- Height: 31.9 in (810 mm)
- Dry weight: 545 lb (247 kg)
Components
- Valvetrain: Overhead valve
- Fuel type: Petrol
- Cooling system: Water-cooled
- Reduction gear: Direct drive, right-hand tractor
Performance
- Power output: 154 hp (115 kW) at 1,400 rpm (maximum power)
- Specific power: 0.18 hp/cu in (8.74 kw/L)
- Compression ratio: 4.85:1
- Power-to-weight ratio: 0.28 hp/lb (0.46 kW/kg)
See also
Related development
Comparable engines
Related lists
References
Notes
Bibliography
External links
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