title: Beardmore 120 hp
text: # 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)
  