New Zealand DSG class locomotive

The New Zealand DSG class is a type of diesel-electric shunting locomotive used in New Zealand. The class shares a central cab design with the smaller DSC class shunting locomotive, and is twin-engined. Meanwhile, the very similarly designed, single-engined DSJ class, has a cab that is offset from the centre.

New Zealand DSG class
DSG 3114 in Dunedin, 2009.
Type and origin
Power typeDiesel-Electric Shunter
BuilderToshiba Heavy Industries, Japan[1]
Build date1981–1983
Specifications
Configuration:
​
 • UICBo-Bo
Gauge3 ft 6 in (1,067 mm)
Length13.5 metres (44 ft 3 in)
Loco weight56 tonnes (55 long tons; 62 short tons)
Prime moverTwo Cummins KTA-1150L
RPM range1800 rpm
Engine typeI6 Diesel engine
GeneratorTwo Toshiba SDT 1144
Traction motorsFour Toshiba SE 2314
Cylinders16
Cylinder size159 mm × 159 mm (6.3 in × 6.3 in)
Performance figures
Maximum speed60 km/h (37 mph)
Power output700 kW (940 hp)
Tractive effort130 kN (29,000 lbf)
Career
Number in class24
NumbersDSG 3005–3304
First run1981–1983
DispositionIn service

Introduction

The DSG class shunters were built in four batches from 1981 to 1983. The first batch of six locomotives was introduced in 1981,[2] followed by batches in 1982 and 1983.[3]

In Service

The locomotives have seen widespread use throughout New Zealand, particularly in larger yards and for port traffic.[3] They also see service on sections of mainline, performing regional shunt duties in a number of areas.

Livery

All DSG class locomotives are in the KiwiRail Mark 2 colour scheme (Vertical separations of main colours on car body).[1]

Notes
  1. "DSG (1981) Toshiba". Retrieved 28 February 2019.
  2. Parsons 2002, p. 17.
  3. Parsons 2002, p. 18.

References
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