New South Wales 42 class locomotive

New South Wales 42 class

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4201 leading a New South Wales Rail Transport Museum train at Moorabool in April 2007
Type and origin
Power type Diesel-electric
Builder Clyde Engineering, Granville
Serial number 55-74, 55-75, 55-79, 56-87, 56-92, 56-100
Model Electro-Motive Diesel A7, later model A16C
Build date 1955/56
Total produced 6
Specifications
UIC class Co-Co
Gauge 4 ft 8 12 in (1,435 mm)
Wheel diameter 40 in (1,016 mm)
Length Over headstocks:
58 ft 0 in (17.68 m),
Over coupler pulling faces:
62 ft 3 14 in (18.98 m)
Width 9 ft 9 in (2.97 m)
Height 14 ft 0 in (4.27 m)
Axle load 20 long tons 0 cwt (44,800 lb or 20.3 t)
Loco weight 120 long tons 0 cwt (268,800 lb or 121.9 t)
Fuel type Diesel
Fuel capacity 1,500 imp gal (6,800 l; 1,800 US gal)
Lubricant cap 165 imp gal (750 l; 198 US gal)
Coolant cap 175 imp gal (800 l; 210 US gal)
Sandbox cap 16 cu ft (0.45 m3)
Prime mover EMD 16-567C
RPM range 275-835
Engine type Two-stroke diesel
Aspiration Roots blower
Generator EMD D12
Traction motors EMD D37, 6 of
Cylinders V16
Cylinder size 8.5 in × 10 in (216 mm × 254 mm)
Performance figures
Maximum speed 71 mph (114 km/h)
Power output Gross: 1,750 hp (1,305 kW),
For traction: 1,600 hp (1,193 kW)
Tractive effort Continuous: 61,250 lbf (272.45 kN) at 9 mph (14 km/h)
Career
Operators New South Wales Government Railways
First run 28 November 1955
Withdrawn 1983
Preserved 4201, 4204, 4206
Disposition 4 preserved, 2 scrapped

The 42 class were a class of diesel locomotives built by Clyde Engineering, Granville for the New South Wales Government Railways in 1955/56.

History

4202 and 4206 depart Junee with a northbound freight train
4202 operating wrong road at Yass hauling the Intercapital Daylight
4204 at Albury in 1977

The design was based on the Electro-Motive Diesel EMD F7 locomotive and were very similar to the GM 12 class then being built by Clyde Engineering for the Commonwealth Railways.

They initially worked express passenger services including the Brisbane Limited, Intercapital Daylight and Melbourne Limited and later the Southern Aurora and Spirit of Progress.[1][2] As newer locomotives arrived they were concentrated on the Main South line operating freight services.

By April 1978, the Australian Federated Union of Enginemen had placed a ban on the 42 class operating as lead engines due to cab conditions. In 1980, 4201 had its cab upgraded during overhaul to overcome these issues, but with their replacement imminent it was decided not to treat the rest of the class. All were withdrawn in 1983.

Preservation

Three have been preserved. A fourth was preserved, but this has since been mostly cut up:

Locomotive Serial No Entered Service Current Owner Livery Status
4201 55-74 Nov 1955 New South Wales Rail Transport Museum Green & yellow Repairs, Maintrain
4202 55-75 Dec 1955 - - Scrapped
4203 55-79 Jan 1956 O'Donohugue's Pub - Emu Plains - Cut up
4204 56-87 Mar 1956 Lachlan Valley Railway Indian red Preserved - Operational
4205 56-92 May 1956 - - Scrapped
4206 56-100 Aug 1956 Dorrigo Steam Railway & Museum Indian red Stored

References

  1. Oberg, Leon (1980). Diesel Locomotives of Australia. Sydney: AH & AW Reed. p. 283. ISBN 0 589 50211 5.
  2. 42 Class Railpage
  3. "RTM" Railway Digest February 1984 Page 69
  4. "LVR" Railway Digest February 1984 Page 69
  5. "Western Report" Railway Digest September 1986 Page 281
  6. "Locomotives" Railway Digest April 1984 Page 114

Further reading

Media related to New South Wales 42 class locomotives at Wikimedia Commons

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