CANT Z 1018 Leone914 viewsIt was clear from the beginning of the flight test program that the performance of the Leone was so high that a production order was certain. This materialized in 1941 in the form of a contract for 300 aircraft to be powered by two Alfa Romeo 135 RC.32 or Piaggio P.XII RC.35 engines, depending on availability. In the event that the Alfa Romeo radial engine was available in larger quantities, and production started in 1943 with a powerplant of two such engines. By the time of the Italian armistace in 9/43 however, deliveries had reached only 10 pre-production and five production warplanes, and a few of these machines saw limited service with the 101st Bombardment Group. Such was the potential of the basic design that two important derivatives were proposed. The first of these was a heavy fighter was a fixed forward armament of 7 20mm cannon as well as a defensive outfit based on three 12.7mm trainable machine guns. The second was a night-fighter with German Lichtenstein SN-2 radar with the antenna in the nose.
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Caproni Ca 135814 viewsThe prototype made its first flight in 4/35 powered by two 800 hp Isotta-Fraschini Asso XI RC Vee engines and driving a wooden two-bladed propeller. The propeller was soon exchanged for a three-bladed metal propeller subsequently accepted for all production versions. The Italian air force felt the Ca.135 had potential and in 1936 ordered 14 examples of the Ca.135 Tipo Spagna (Spanish model), presumably as it was intended to undertake an operational evaluation in the Spanish Civil War. However, none of the aircraft served with the Italian air force in Spain. Trials revealed that the Fiat engines were unreliable and failed to improve performance as significantly as the Piaggio engines, so the few Fiat powered bombers were withdrawn from front-line service and transferred to bomber schools. Thus production of the Ca.135/P.XI was undertaken for a sole export customer, which was the Hungarian air force that received 100 of the type in 1939 and 1940. These aircraft operated with limited success against the Soviets.
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