[2] Above the fuselage, mounted in line with the wing trailing edges was a manually operated dorsal turret armed with a single 7.7 mm (0.303 in) Breda-SAFAT machine gun.

The Norwegian aircraft were acquired as part of a dried and salted cod (Klippfisk) barter deal between Norway and Italy.

Instead, a delivery of 12 Caproni Ca.312s with upgraded engines and improved performance was substituted, but not delivered before the German invasion of Norway on 9 April 1940.

A similar scenario occurred with other export contracts, especially with a hoped-for Royal Air Force order for bomber trainers being curtailed during negotiations with Caproni when Italy entered the war as an Axis power.

Together with North American NA.50s, the Peruvian Ca.310s flew bombing missions against Ecuadorian cities and supported Army of Peru ground forces.