The SIAI-Marchetti SM-1019 is a double-seat plane, single-engine with turboprop, monoplane with high wing sunshield shaped, and including STOL characteristics, developed by the Italian Aeronautical company SIAI-Marchetti in the sixties. An evolution of the American Cessna L-19, was produced in more than 3400 units in the various versions O-1, -305 e -321, and suggested as equipment for the air departments of the Italian Army, as a connection plane and support to the ground troops. In the sixties, the Italian Army edited a specification to supply a new aircraft with STOL characteristics intended to integrate and consequently substitute the service of the American Cessna O-1 Bird Dog, that was in line to support the ground troops, as control, reconnaissance and connection aircraft. To this request, two aeronautical companies answered: SIAI-Marchetti and Aermacchi, the first with a project based on Cessna model, the second developed a previous project called Lockheed, Aermacchi/Lockheed AL-60 Conestoga, offered on the market by the general aviation and whose production license was bought by the Varese Company. The technical office SIAI-Marchetti decided to start the redesign of Bird Dog, mainly following the convention that a modern model, which was supposed to preserve its operability and offer better performance compared to the one that he was supposed to substitute, it had to aim at a new more powerful engine type and replacing the traditional internal combustion engine with the more efficient turbine engine, which was considered avant-guard at that period. This requires a general build up of the structures to be able to stand the high workload. The new model, named by the company as SM-1019, represented the general layout of US L-19/O-1 introducing some technical improvements, mainly applying the turboprop Allison 250-B-14-D, of 317 shp, instead of 6-cylinders opposed Continental 0-470-11 of 213 hp, metal three-blade constant speed, with a flow inverter device propeller, in order to obtain, together with double-disk brakes, the stop of the aircraft in very limited space when landing. The prototype flew for the first time on May 24th 1969 and in the comparative evaluations it was the winner, gaining the supply of 80 samples. SM-1019 started their duty in 1975 supporting and substituting progressively Cessna L-19 Bird Dog and the Piper L-21-B in Army Light Aviation Departments (RAL). What needs to be remembered is that in Caproni, now Volandia museum, semiwings were produced with the relative mobile plains and the complete tail mobile plains. The structures were then sent to Siai Marchetti to be assembled completed with camouflage painting, national cockade and writings. In the various parts of the world you can count various examples, not used by Italian Army and bought by privates, still maintained in good conditions to fly or to be exposed. The sample exposed in Volandia EI-479, sn 1-082, MM 52272, coming from 3° Regiment ALE in Orio al Serio, was kindly given by the Italian Army to Volandia.