FIAT CR 42. The Fiat CR.42 Falco ("Falcon", plural:Falchi) was a single-seat sesquiplane fighter which served primarily in Italy's Regia Aeronautica before and during World War II. The aircraft was produced by the Turin firm, and entered service, in smaller numbers, with the air forces of Belgium, Sweden and Hungary. With more than 1,800 built, it was the most widely produced Italian aircraft to take part in World War II. This one appear to be sprayed with bullets.