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Victorian Railways Y class (diesel)

Victorian Railways Y class
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V/Line Y129 at Southern Cross in October 2011
Type and origin
Power type Diesel-electric
Builder Clyde Engineering, Granville
Model Electro-Motive Diesel G6B
Build date 1963-1968
Total produced 75
Specifications
Configuration:
 • UIC Bo-Bo
Gauge 1,600 mm (5 ft 3 in)
Length 13.28 m (43 ft 7 in)
Fuel type Diesel
Prime mover Electro-Motive Diesel 6-567C (first 50)
Electro-Motive Diesel 6-645 (last 25)
Engine type (?)
Generator Electro-Motive Diesel D25E
Traction motors General Electric 237
Performance figures
Maximum speed 65 km/h (40 mph); Y175 was regeared for a top speed of 95 km/h (59 mph)
Power output 480 kW (640 hp)
Career
Operators Victorian Railways
Number in class 75
Numbers Y101-Y175
First run 1963
Preserved Y127, Y133, Y135, Y137, Y159, Y164
Current owner Pacific National
V/Line
Disposition 17 in service, 6 preserved, 8 stored, 43 scrapped
Type and origin
Power type Diesel-electric
Builder Clyde Engineering, Granville
Model Electro-Motive Diesel G6B
Build date 1963-1968
Total produced 75
Specifications
Configuration:
 • UIC Bo-Bo
Gauge 1,600 mm (5 ft 3 in)
Length 13.28 m (43 ft 7 in)
Fuel type Diesel
Prime mover Electro-Motive Diesel 6-567C (first 50)
Electro-Motive Diesel 6-645 (last 25)
Engine type (?)
Generator Electro-Motive Diesel D25E
Traction motors General Electric 237
Performance figures
Maximum speed 65 km/h (40 mph); Y175 was regeared for a top speed of 95 km/h (59 mph)
Power output 480 kW (640 hp)
Career
Operators Victorian Railways
Number in class 75
Numbers Y101-Y175
First run 1963
Preserved Y127, Y133, Y135, Y137, Y159, Y164
Current owner Pacific National
V/Line
Disposition 17 in service, 6 preserved, 8 stored, 43 scrapped

The Y class are a class of diesel locomotives built by Clyde Engineering, Granville for the Victorian Railways between 1963 and 1968.

In 1963 the first of 25 general purpose diesel-electric locomotives was delivered by Clyde Engineering. As a cost saving measure, they were built with bogies and motors retrieved from scrapped Swing Door electric suburban train sets; the re-use of these components reduced the unit cost of the Y class locomotive from around £52,000 ($104,000) to £40,000 ($80,000). Two further orders saw the class total 75 by 1968.

Although built to dieselise Victoria's shunting operations and replace steam locomotives on branch line services, they were also used on mainline freight and passenger services including between Spencer Street and Werribee.

After closure of branch lines across the state and the end of short pick-up goods trains, use of the class dropped.

In the 1980s it is thought that four Y Class locomotives were on standard gauge, typically no's 101-104.

Withdrawals commenced from 1985 and large-scale scrappings commenced during 1991 and 1992.

After the mass-withdrawals of the Y fleet up to 1992, engines 101, 102, 104, 150 and 151 were on standard gauge, as 103 had been withdrawn in the late 1980s. Y101 followed in the early 90's after suffering a collision, but it was not directly replaced.

From 1995, under the newly formed V/Line Freight division, engines Y115, Y151, Y152 and Y169 were running trains on standard gauge, and locomotives Y124 and Y142 were confined to shunting at South Dynon. Within a few years Y150 had replaced Y115 on standard gauge, with the latter engine shifting to Ballarat as a yard pilot. Around the same time, Y169 replaced Y102, and Y152 replaced Y104. These two engines were stored at Newport workshops, then transferred to South Dynon's "rotten row" where they sat for about a decade.

Only two engines - Y152 and Y165 - were repainted into the V/Line Freight scheme, which was essentially the same as previous with a new decal and a lighter grey.

The 1999 sale of V/Line Freight to Freight Victoria included engines 110, 113, 115, 118-119, 121-122, 138, 150-152, 157, 165, 169, 171 and 174.

Today four are in service with V/Line as carriage yard shunters and fitted with low speed controls, with others owned by freight operator Pacific National. Seventeen units are officially preserved, though only a handful of those are operational.


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