Fiat A-12 Note: This item is currently in storage. The Fiat A-12 engine is a six-cylinder, liquid-cooled, in-line engine of 260 hp. It was used in such aircraft as the S.I.A. 7B1, Fiat R-2, S.A.M.L. S-2 reconnaissance aircraft, and the Caproni Ca. 46 bomber. Click here to return to the Featured Accessions index.