|CNA D.4 on display at Museo Nazionale Scienza e Tecnologia Leonardo da Vinci|
|Type||4-cylinder air-cooled horizontally opposed piston engine|
|Manufacturer||Compagnia Nazionale Aeronautica (CNA)|
The CNA D, often known as the CNA D.4, was a four-cylinder, air-cooled, horizontally opposed engine built in Italy by Compagnia Nazionale Aeronautica (CNA) between 1940 and 1951 to power light aircraft.
Data from Erickson
Data from 
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