NACA-Haube
Powered by a single Fiat A.74 R.C.38 14-cylinder air-cooled supercharged radial engine, rated at for take-off and at , enclosed in a NACA cowling and mounted upon a chrome-molybdenum steel tubular structure attached with flexible mounts. Access for maintenance of the engine was provided via large cowling doors and panels on the fuselage aft of the firewall gave access for fuel tanks and armament. The engine incorporated a reduction gear which drove the Hamiliton-Fiat 3-bladed all-metal constant speed propeller.