Model Variants (Including Prototypes)
SM.79P - Prototype Model Designation; fitted with 3 x Paiggo Stella radial engines (610hp); retractable tailwheel assembly.
SM.79-I - Initial Production Model fitted with Alfa-Romeo 126 RC 34 radial engines (780hp).
SM.79-II - Torpedo Bomber Model Designation fitted with Piaggo P.XI RC 40 (1,000hp) or FIAT A.80 RC 41 (1,030hp) radial engines; provisions for 2 x torpedoes.
SM.79-III - Improved SM.79-II model with improved armament setup and sans ventral gondola position.
SM.79B - Export Model of the SM.79-I but fitted with only 2 engines.
SM.79C - Conversion Model of the SM.79-I sans ventral and dorsal positions.
SM.79T - Similar to SM.79C model.
SM.79JR - Romanian Export Model fitted with 2 x Junkers Jumo 211Da inline engines.
SM.79K - Yugoslavian Export Model based on the SM.79-I base model.
SM.83 - Civilian Passenger Transport Model Designation.