[size=1]Left: Caproni Astore Serie II Right: Testbed for Asso 2500 engine[/size]
Some problems with the remotely controlled gun turret on the new Caproni Astore medium bomber have been encountered during the first year in service. Although, thoroughly tested in the Piaggio P.50 flying testbed, this reliability has not been replicated during service. A particular problem has been their behaviour at high altitude - a test point that was not available before. In addition, the complicated construction of the turrets has lead to shortfalls in production against airframes. In accordance with this, the aircraft has been slightly re-designed. The Serie II aircraft feature no turret. The rearward firing armament now consists of a single 11mm machine gun operated by the gunner/radio operator. A large portion of the designers were in favour of removing the armament all together, but the single flexible mount has only a limited impact on drag and weight. Initial tests with the modified aircraft have revealed that they are ~20km/h faster.
Another modification flying this year is an aircraft with an Isotta-Fraschini Asso 2500 engine on the starboard wing. This aircraft is getting some flight test data for the new engine before it flies on the RLA later in the year. The aircraft is modified with an all-new nacelle for the new engine with some structural reinforcements being necessary to account for the increased weight.
Another new aircraft to fly is the Piaggio PD.3, which is an experimental helicopter. D'Ascanio successfully flew his first design in 1930, gaining a number of world records in the process. During the 1930s, funding for the research dried up, the Italian government preferring to purchase autogyros as-is from Cierva in Iberia. With recent developments elsewhere in the world, and D'Ascanio having a new design, the research money has increased. The new PD.3 dispenses with the contra-rotating rotors, instead mounting a small secondary propeller at the end of a tail boom for yaw control. Italy currently has no requirement for a helicopter, but wishes to stay abreast of the technology for when it results in a useful vehicle.