The fuselage, made of a metal structure covered with panels that were also metal, incorporated the two tandem cabins with windshield, the front for the pilot and the rear of the observer, the latter equipped with side windows to facilitate the location targets and a defensive brandable machine gun.

Laterally it continued in a tail characterized by the biplane bi-fletching drift with double control planes from the accentuated positive dihedral angle.

The propulsion was entrusted to an Isotta Fraschini Asso XI RC.40 engine positioned at the front apex of the fuselage, a liquid-cooled 12-cylinder V engine capable of delivering a power output of 900 hp (662 kW ), covered by a metal casing and combined with a triple helix.

The armament consisted of a pair of Breda-SAFAT machine guns of different caliber, the heaviest 12.7 mm mounted on the hunt and the lighter 7.7 mm mounted on a tilting support and positioned in the rear passenger compartment.

In 1936 the Ministry of Aeronautics issued a specification for the supply of a new terrestrial strategic reconnaissance aircraft.