Royal Aircraft Factory RAF 2


The RAF 2 was a British air-cooled, nine-cylinder radial engine developed for aircraft use just prior to World War I. Iit was designed and built by the Royal Aircraft Factory, and first run in October 1913.


Royal Aircraft Factory B.E.8


Type: 9-cylinder, single-row, radial engine
Bore: 3.94 in (100 mm)
Stroke: 5.51 in (140 mm)
Displacement: 604.6 cu in (9.9 L)
Valvetrain: Poppet valve
Cooling system: Air-cooled
Reduction gear: 0.563:1, geared epicyclic, right-hand tractor
Power output: 120 hp (90 kW)
Specific power: 0.2 hp/cu in (9.2 kW/L)