The L6/40 was a light tank used by the Italian army from 1940 through World War II. It was designed by Ansaldo as an export product, and was adopted by the Italian Army when officials learned of the design and expressed interest. It was the main tank employed by the Italian forces fighting on the Eastern Front alongside the L6/40-based Semovente 47/32 self-propelled gun. L6/40s were also used in the North African campaign. The official Italian designation was Carro Armato ("armored vehicle", i.e. "tank") L6/40. This designation means: "L" for Leggero ("light"), followed by the weight in tons (6) and the year of adoption (1940). Design and development The L6/40 was a conventional light tank design of riveted construction. A one-man turret in the centre mounted a single Breda Modello 35 20 mm main gun and a Breda 38 8 mm coaxial machine gun. The driver sat in the front right of the hull. The riveted armour was six to 40 mm in thickness, which was roughly equivalent to existing Allied light tanks. A further development of the L3/35 light tank, the L6 went through a number of prototypes during the late 1930s. The first was armed with a sponson-mounted 37 mm main gun and a machine-gun armed turret. A later version featured a turret mounted 37 mm gun and yet another version had only twin 8 mm machine guns. Ultimately, the production configuration, named Carro Armato L6/40, was put into production in 1939, with 283 finally produced. Variants The L6 Lf (Lancia fiamme) flame tank variant was developed in which the main gun was replaced by a flamethrower with 200 litres of fuel. A command-tank variant carried extra radio gear and had an open-topped turret. The most successful of the L6 variants was the Semovente 47/32, which eliminated the turret and substituted a 47 mm antitank gun in the open-topped hull. A final version late in the war was an ammunition carrier armed only with a single 8 mm Breda machine gun. It was used alongside the Semovente 90/53, carrying 26 extra 90 mm rounds, as the Semovente 90/53 itself could only carry eight rounds. Combat use L6/40 light tanks were used by the Italians in the Balkans Campaign, in the war against the Soviet Union, in the latter stages of the North African campaign, and in the defence of Sicily and Italy. The L6/40 was the main tank