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).^[1]

Applications

Data from Italian Civil and Military Aircraft 1930-1945^[2]

• CNA Eta
• CNA 15
• CNA 25

Specifications

Data from Jane's All the World's Aircraft 1938^[1]

General characteristics

• 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)

Components

• 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

Performance

• 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)