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The ALn 668 (Automotrice Leggera a nafta, Light Diesel motor car) series is a family of diesel railcars built by Fiat Ferroviaria between the 1950s and the 1980s. The trains were built for the Italian public railway company Ferrovie dello Stato (FS), now Trenitalia as well as many Italian private railway operators. Types derived from the class have been built for the railway companies of other nations. Most of the trains are still in service today.

FS ALn 668
Type and origin
Power typeDiesel
BuilderFiat Ferroviaria, Breda, Milan
Build date1956 – 1983
Total produced785 total: 725 Fiat; 60 Breda
Specifications
Gauge1,435 mm (4 ft 8 12 in) standard gauge
Performance figures
Maximum speed130 km/h (81 mph)
Career
OperatorsFerrovie dello Stato
LocaleItaly, Sweden, Turkey, Yugoslavia
First runDecember 1956
FS ALn 668.1400
Type and origin
BuilderFiat Ferroviaria
Build date1954-1963
Total produced80
Specifications
Career
OperatorsFerrovie dello Stato
First run1956
FS ALn 668.2400
Type and origin
BuilderBreda
Build date1959-1964
Total produced40
Specifications
Career
OperatorsFerrovie dello Stato
FS ALn 668.1500
Aln 668-1502.jpg
Type and origin
BuilderFiat Ferroviaria, Breda
Build date1965-1967
Total produced75
Specifications
Career
OperatorsFerrovie dello Stato
FS ALn 668.1600
14.11.95 Palermo Centrale ALn668.1609.jpg
Type and origin
BuilderFiat Ferroviaria, Breda
Build date1970-1971
Total produced33
Specifications
Career
OperatorsFerrovie dello Stato
FS ALn 668.1700
FS-TI ALn 668.1713 Rovigo 070623.jpg
Type and origin
BuilderBreda
Build date1971-1972
Total produced20
Specifications
Career
OperatorsFerrovie dello Stato
FS ALn 668.1800
Aln 668 a Torre Annunziata Centrale.jpg
Type and origin
BuilderFiat Ferroviaria
Build date1971-1973
Total produced85
Specifications
Career
OperatorsFerrovie dello Stato
FS ALn 668.1900
Treno per Canosa a barletta.jpg
Type and origin
BuilderFiat Ferroviaria, Omeca
Build date1975-1976
Total produced42
Specifications
Career
OperatorsFerrovie dello Stato
FS ALn 668.1000
Type and origin
BuilderFiat Ferroviaria, Omeca
Build date1976-1979
Total produced120
Specifications
Career
OperatorsFerrovie dello Stato
FS ALn 668.1200
FS ALn 668.1224 at Rovigo train station.jpg
Type and origin
BuilderFiat Ferroviaria, Omeca
Build date1979-1980
Total produced60
Specifications
Career
OperatorsFerrovie dello Stato
FS ALn 668.3000
Treno ALn668 3034 a Ragusa S2.jpg
Type and origin
BuilderFiat Ferroviaria, Omeca
Build date1980-1981
Total produced40
Specifications
Career
OperatorsFerrovie dello Stato
FS ALn 668.3100
ALn 668 3200 Trenitalia San Zeno Naviglio 20110410.jpg
Type and origin
BuilderFiat Ferroviaria, Omeca
Build date1980-1983
Total produced150
Specifications
Career
OperatorsFerrovie dello Stato
FS ALn 668.3300
Pescina 2009 017 (RaBoe).jpg
Type and origin
BuilderFiat Ferroviaria
Build date1982-1983
Total produced40
Specifications
Career
OperatorsFerrovie dello Stato

The forty units of the 2400 series were built entirely by Breda in Milan.

The ALn 668 is considered the standard railcar of the FS. Class ALn 663 is quite similar, while maintaining the same mechanics, received a different classification exclusively for the new interior design that reduced the number from sixty-eight to sixty-three.

Contents

BackgroundEdit

Lots of FS's fleet was destroyed at the end of World War II, which meant the company needed a replacement diesel railcar. The essential characteristic of the new rolling stock was the provision of the drive motor under the floor, so as to leave the maximum space available for passengers.

The railcars RALn 60, built for the modernization of passenger service on the lines of the Sicilian FS 950 mm (3 ft 1 38 in) Narrow gauge railway, were tested from January 1950 and was the start of the long line of railcars built by Fiat from the war until the first half of the nineties.

Although the behavior of new railcars was overall satisfactory, availability and maintenance costs were still very far from the objectives considered within the Service Material and Traction for FS, which had long aspired to the creation of a standard Italian railcar standard.

By building on the experience already acquired in 1954 initiated the project for a new standard railcar, for which the FS established clearly the fundamental objectives: high reliability, ease of conduct and learning, maintenance and repair well-programmable, overall costs contained defined and relatively modest, given the kind of services that diesel railcars were called upon to play in a network where it had planned the electrification of all main lines.

The only binding conditions imposed on the builders were that the railcar was twin engine, that the mass adherent was not lower than 50% of the total, the engines were placed under the floor and which exceed the test UIC 100 hours.

The manufacturers of railway equipment able to meet the demand of the Service Material and Traction were at the time Breda, OM and FIAT. Breda, committed to the realization of railcars TEE answered only in 1959; OM, intent to reissue the ALn 772 and preparing ALn 773 defected the offer, but was later involved in the construction of the FIAT trailers and foreign versions of ' ALn 668; FIAT, although busy with various productions (including ALn 64 per rack for the Paola-Cosenza line) quickly responded to the call of FS, also because with its industrial potential was the only company able to operate without constraints due to licenses. Added to this advantage FIAT added the ability to use diesel engines derived from production in large series of trucks, a choice that proved decisive for the future success of ALn 668 resulting in a considerable saving in initial cost, ensuring maximum reliability and an efficient care service with high availability of spare parts.

General descriptionEdit

These diesel railcars were built during the period 1954-1983. 787 vehicles were built in 12 series.

UsageEdit

TrenitaliaEdit

Ferrovia AlifanaEdit

Ferrovie Emilia-RomagnaEdit

FER has operated a total of 29 ALn 668 railcars built between 1959 and 1983. These are of the types 668.1000, 668.1700, 668.1900 and 668.3000. A number of these have been taken out of service.

Ferrovie del Sud EstEdit

FSE uses has 15 type ALn 668 trains numbered 31-45. These are a mix of 668.1000 and 668.1900 series. Most of these railcars are stored out of service. The remaining trains are operated in the region of Apulia around Martina Franca, Taranto and Lecce.

Gruppo Torinese TrasportiEdit

Sistemi TerritorialiEdit

ST has four type 668.1000 railcars numbered 668.605, 668.606, 668.609 and 668.610 which were delivered in 1980. They are used on minor lines in the Veneto region.

TrenordEdit

External linksEdit