- Yes
- Maybe
- No
History
Since well before the last world war, the Regia Aeronautica had needed a heavily armed, twin-engined ground attack aircraft also useful for possible escort of bombers. In 1941 Savoia-Marchetti gave the air force an S.M.84 aircraft heavily modified and transformed into the well-known S.M.89 serial number M.M.533. The aircraft was tested and assigned to the 173rd Squadron, but was frequently grounded due to its relatively poor maneuverability and other problems with weight and landing hazards. After 8 September the vehicle was requisitioned by German forces, and it is not known what happened to the vehicle but it was most likely demolished.
Armament and propulsion.
The aircraft was powered by two Piaggio P.XII RC.35 radial engines of 1,500 hp each, which allowed the vehicle to reach a maximum speed of 440 km/h and a ceiling of 6,700 m. Not much, but good for ground attack missions.
The aircraft was very heavily armed: as offensive armament it had two 37 mm Breda 37/54 anti-aircraft guns with 37 rounds per gun (74 in total) and three 12.7 mm Breda-SAFAT machine guns with 350 rounds per gun ( 1050 in total). As defensive weapons, the aircraft was equipped with a dorsal rotating turret with a 12.7 Breda-SAFAT and a ventral position always armed with a 12.7 mm machine gun. Both weapons had 350 rounds each.
With this armament the aircraft would have become a powerful ground fire station.
Pictures and drawnings.
Sources.
Spoiler
Siai Marchetti SM.84 by Luckyplane - Issuu
Savoia-Marchetti SM.89 - Wikipedia
Savoia-Marchetti S.M.89 - Wikipedia
Dimensione Cielo
Savoia-Marchetti S.M.89 - Velivoli Storici - Aerei Militari Forum
Ударный самолет Savoia-Marchetti SM.89
Savoia Marchetti SM.89
http://www.wwiiaircraftperformance.org/Italy/Caratteristiche_velivoli_italiani.pdf
And also thanks to @blakeob for his help with the old suggestion.