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Compagnia Nazionale Aeronautica / CNA C.VI / IRC43

The CNA C.VI I.R.C.43 was a six cylinder, supercharged, inverted, inline engine designed and built in Italy in the 1930s. Following standard Italian practice, the designation IRC43 indicated that the engine was inverted, geared down and had a supercharger rated to 4,300 m (14,110 ft).

CNA 15
CNA 25

Bore: 90 mm (3.54 in)
Stroke: 110 mm (4.33 in)
Displacement: 4.2 L (256.2 cu in)
Dry weight: dry 185 kg (408 lb)
Valvetrain: Two underhead camshafts, one for inlet valves and one for exhaust
Supercharger: Roots type rated to 4,300 m (14,110 ft)
Cooling system: Air
Reduction gear: 2:1
Power output: rated 112 kW (150 hp) at 3,400 rpm at 4,300 m (14,110 ft)
Fuel consumption: 0.33 kg/kWh (0.54 lb/hp h)
Oil consumption: 24 g/kWh (0.053 lb/hp h)



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