CNA C.II
{{Short description|Aircraft engine}}
| {{Infobox Aircraft Begin
| name=C.II | image= | caption= }}{{Infobox Aircraft Engine |type=Horizontally opposed air-cooled twin |manufacturer=Compagnia Nazionale Aeronautica (CNA) |designer= |national origin=Italy |first run= |major applications= |produced=1937-41 |number built= |program cost= |unit cost= |developed from= |variants with their own articles= }} |
The CNA C.II was a small, air-cooled, two cylinder horizontally opposed aircraft engine designed and built in Italy in the late 1930s.
Design
The low power, unsupercharged C.II had offset cylinders with special steel barrels and light alloy cylinder heads. The pistons were light alloy castings; the connecting rods were heat treated chrome-nickel steel, with split big ends. The CN.II had a one piece chrome-nickel steel crankshaft running in two roller bearings, with a ball thrust bearing. The crankcase was a one piece light alloy casting.
Applications
Specifications
{{pistonspecs
|ref=Jane's All the World's Aircraft 1938
|bore=90 mm (3.54 in)
|stroke=110 mm (4.33 in)
|displacement=1.4 L (85.4 cu in)
|length=478 mm (18.81 in)
|width=856 mm (33.70 in)
|height=526 mm (20.71 in)
|weight= dry 42 kg (92.6 lb)
|valvetrain=Large diameter overhead valves, one inlet and one exhaust per cylinder. Enclosed rocker gear operated by push-rods driven off upper crankcase camshaft.
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|oilsystem=Wet sump; crankshaft fed pressurised oil by pump.
|coolingsystem=Air
|power=rated 28 kW (38 hp) at 2,700 rpm at sea level
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