Product Features and Details
80 were produced worldwide, we only have one in stock.
Model: Micro Metakits class 743 is handmade in brass; it features full cab interior, functional boiler hatch with full boiler details and a brushless, ironless bell motor. This model is a masterpiece and it features too many technical and optical details to list. Model is painted in the Italian Black and reddish brown livery.
Prototype: In the early 1940s the FS had experimented with the Franco-Crosti boiler, and after World War II it had been applied to several locomotives, including 90 Class 740 which were subsequently reclassified as Class 743. These rebuilds all had the preheater arranged in two barrels placed on the sides of the boiler; this arrangement had the disadvantage of subsequently increasing the axle load (therefore restricting route availability) and stretching the loading gauge to the limit, and precluded similar attempts from interested parties such as the British Railways. An alternative arrangement had been experimented by the Deutsche Bundesbahn in 1952 on two DRB Class 42 locomotives, in which the barrels were placed below the boiler, which had been appropriately raised. To accede to BR's entreaties, the Società Franco studied a similar concept to transform a Class 740 with a single preheater barrel, and a single chimney placed on the right side of the locomotive, to test the concept (which would eventually lead to the ten Franco-Crosti BR Standard Class 9F locomotives). This concept was also interesting for the FS, as it promised to keep down the axle load, while keeping the system's fuel savings. To keep down the cost of transformations, the boiler was left largely unmodified, and only an exhaust steam injector was fitted.
The first locomotive was outshopped from the Verona Porta Vescovo workshop in 1954, and was originally classified as Class 743.433; tests showed that the locomotive's performance was practically the same of the two-barreled Franco-Crosti 743, having a power output of 1,100 CV (809 kW; 1,080 hp) at 45 km/h (28 mph), to the Class 740's 980 CV (721 kW; 967 hp) at the same speed, while enjoying a greater route availability. Therefore, in 1958 the FS approved the transformation of a batch of 80 Class 740 locomotives, which were subsequently reclassified as Class 741 (the 743.433 was likewise reclassified as 741.433
