Beardmore 120 hp
# Beardmore 120 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.

## Applications

* Airco DH.1
* Airco DH.3
* Armstrong Whitworth F.K.3
* Armstrong Whitworth F.K.8
* Bristol T.T.A.
* Cody V
* Martinsyde Elephant
* Royal Aircraft Factory F.E.2
* Royal Aircraft Factory R.E.5
* Royal Aircraft Factory R.E.7
* Vickers F.B.14
* White and Thompson No. 3

## Specifications (120 hp)

Data from Lumsden

### 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)
