FS Class D.341

Class D.341
Type and origin
Power typeDiesel
BuilderFIAT Grandi Motori, Breda
Build date1957-1963
Total produced105
Specifications
Configuration:
 • UICBo′Bo′
Gauge1,435 mm (4 ft 8+12 in) standard gauge
Wheelbase7.64 m (25 ft 34 in)
Between bogie pivots
Length14.54 m (47 ft 8+12 in)
Width3 m (9 ft 10+18 in)
Height4.275 m (14 ft 14 in)
Loco weight66.5 t (65.4 long tons; 73.3 short tons)/
67 t (66 long tons; 74 short tons)
Fuel typeDiesel
TransmissionElectric (ACEC)
Performance figures
Maximum speed110 km/h (68 mph)
Power output970 kW (1,300 hp)/
1,030 kW (1,380 hp) (FIAT)
1,076 kW (1,443 hp) (Breda)
Career
OperatorsFS/Trenitalia and others

The FS Class D.341 is a class of diesel-electric locomotive used in Italy, introduced in the 1950s and still in service. Most of the remaining units are in service with La Ferroviaria Italiana (LFI).

History

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The D.341 were part of a post-World War II effort from the Italian state railways FS to replace their steam locomotives on non-electrified lines. They were designed in collaboration with Fiat and Breda and were produced in two series with different engines, depending from the manufacturer. The second series had a slightly different appearance. Two prototypes were also built by Ansaldo and Reggiane.

Description

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D.341 has two small cabs, one at each end, separated by a large compartment including the engine, the cooling devices and the transmission. The two engines were each V-12 engines coupled to a DC 450/700 V generator provided by Magneti Marelli for the FIAT locomotives, and by Breda or Ocren in the others. Power is fed to four electric motors having a maximum power of 177 kW (237 hp) each in the first series, and 192 kW (257 hp) in the second one.

References

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  • Servizio Mat. e Trazione (1971). Automotrici termiche. Florence: Ferrovie dello Stato.