ABC Mosquito

The ABC Mosquito was a 120 hp (90 kW) six-cylinder radial aero engine designed by British engineer Granville Bradshaw for use in light aircraft. The single Mosquito engine was built by ABC Motors, first running in 1916. It is thought that the design resulted from a bet between Harry Hawker and Bradshaw, Hawker proposing that Bradshaw could not build and fly a six-cylinder radial engine. The Mosquito used copper-plated steel Gnat cylinders. The engine was not a success.

Applications
BAT F.K. 22

Specifications
Type: 6-cylinder, single row, air-cooled radial engine
Bore: 4.33 in (110 mm)
Stroke: 5.51 in (140 mm)
Displacement: 487 cu in (8 L)
Dry weight: 180 lb (82 kg)
Valvetrain: Overhead valve, two valves per cylinder
Fuel type: Petrol (40-50 Octane rating)
Cooling system: Air-cooled
Power output: 120 hp (90 kW)
Specific power: 0.25 hp/cu in (11.25 kW/L)
Power-to-weight ratio: 0.66 hp/lb (1 kW/kg)