A highly recommended for any fan of model trains visit, which is found by chance in Milan, is undoubtedly the Museo Nazionale della Scienza e Tecnologia Leonardo Da Vinci (National Museun of Science and Tecnology Leonardo Da Vinci)
A part of all scientific and technological content, it is definitely a unique opportunity to enjoy the view of a number of rail quality material, and also in a state of perfect preservation.
Obviously the exposed material is entirely Italian manufacturing. This also will serve as illustrative of how the design has always been intrinsically linked to the production insdustrial.
HISTORY OF THE LOCOMOTIVE 691
To the American, in the early twentieth century, on some sections of the most important European railways locomotives that were used for the similarity with the American ones, were named Pacific.
Detail of wheel drive
A steam at 130 km / h
This type of locomotives resolved two trends now common to many states, the increase in the weight to be carried and the need of the link always more direct and faster.
In the face of these demands the Italian Railways, under the leadership of Eng. Riccardo Bianchi, planned the Pacific Italian, namely the 690 built by Breda in Milan. 691 subsequently derived type with some modifications derived from the use of the boiler 746/747 stretched. 691 locomotives were built in all 33; the first in 1928, the last in 1934, the latest version, as of 1934, the boiler was totally enhanced by getting to overheat up to 400 °.
The 691 was used as the Milan-Bologna line and then Milan-Venice. In both lines was provided for at least one stage for the supply of water and coal.
The 691 on deposit in Venice in the summer of 1953
The 691 was one of the most powerful steam locomotives and certainly the most remembered both for the powerful image he had for the high speed that could be maintained on some railway lines (on the Verona-Vicenza was able to reach up to 150 km / h). It remained in service until the early sixties, when it was used for towing speed trains.
Credit: Text of HISTORY OF THE LOCOMOTIVE 691 and 2 last photos, Museo Nazionale Scienza e della Tecnologia.