TasRail TR class

The TR class are a class of diesel locomotives built by Progress Rail, Patterson, Georgia, United States for TasRail in 2013–2014. They are currently the main Tasmanian locomotive class handling the majority of mainline services across the state.

TasRail TR class
Type and origin Power type Diesel-electric Builder Progress Rail, Patterson, Georgia Model PR22L Build date 2013–2014 Total produced 17
Specifications Configuration: ​  • UIC Co-Co Gauge 1,067 mm (3 ft 6 in) Bogies EMD GHC Wheelbase 13,610 mm (44 ft 8 in) total, 3,632 mm (11 ft 11.0 in) bogie Length 16,925 mm (55 ft 6.3 in) over headstocks Width 2,900 mm (9 ft 6 in) Height 3,840 mm (12 ft 7 in) Axle load 18 tonnes (17.7 long tons; 19.8 short tons) Loco weight 108 tonnes (106.3 long tons; 119.0 short tons) Fuel type Diesel Lubricant cap. 151.4 L (33.3 imp gal) Prime mover Caterpillar 3512C HD RPM range 1900rpm max Engine type Four stroke Aspiration Turbocharged, intercooled Displacement 58.6 litres (3,576.0 in3) Alternator Kato Traction motors Electro-Motive Diesel D-43 Cylinders V12 Cylinder size 170 mm × 215 mm (6.7 in × 8.5 in) MU working 74V, 8 notch Loco brake Air, dynamic Train brakes Air
Performance figures Maximum speed 100 kilometres per hour (62 mph) Power output 1,700 kW (2,280 hp) gross, 1,492 kW (2,001 hp) net Tractive effort 272 kN (61,148.0 lbf)
Career Operators TasRail Number in class 17 Numbers TR01-TR17 First run November 2013 Current owner TasRail Disposition All in service

History

In December 2011, TasRail awarded Progress Rail a contract for 17 PR22L locomotives.^[1][2] They were the first new locomotives delivered to Tasmania since the Za class in 1976. The first TR class were delivered in November 2013 with the balance delivered in 2014.^[3][4][5]