The Ca 331 was a light twin-engined bomber reconnaissance aircraft. Of all-metal construction, the Ca 331 was projected in two versions, the Ca 331A reconnaissance bomber and the Ca 331B night fighter, prototypes of both versions being built and flown. The latter version was to have been built in large numbers and carried an armament of four 20-mm. cannon and four 12.7-mm. machine guns. Power was provided by two 825-h.p. Isotta-Fraschini Delta 4 in-line engines and construction was all metal.
All Aero 