Fiat A.54The Fiat A.54 was a seven-cylinder, air-cooled radial engine developed in Italy in the 1930s as a powerplant for aircraft. Amongst others, it powered the Ambrosini SAI.1 and SAI.2 racing aircraft.ApplicationsAmbrosini SAI.1Ambrosini SAI.2Caproni Ca.100Fiat G.2/4Jona J-6Nuvoli N.5Cab