The Ca.311 was a member of the large family of Caproni designs derived from the
Ca.306 airliner prototype of 1935, and more directly a modification of the
Ca.310 bomber. As with other related types, it was a low-wing
cantilever monoplane of conventional design. This particular design incorporated the Ca.310's retractable main
undercarriage, as well as the heavily glazed nose that had been tested on the Ca.310
bis prototype. New features included a relocation of the dorsal
turret to a position immediately aft of the
cockpit, and additional glazing throughout the
fuselage. From 1940, this aircraft began to replace the
IMAM Ro.37 in service, completing this process the following year. ==Variants==