New South Wales 79 class locomotive

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New South Wales 79 class
Arhs 7923 sydney.jpg
Type and origin
Power type Diesel-electric
Builder General Electric
Serial number17938, 17939, 17933, 17934
Model GE 44-ton switcher
Build date1943
Total produced4
RebuilderFR Tulk, Perth
Rebuild date1979
Number rebuilt2
Specifications
Configuration:
   UIC Bo-Bo
Gauge 4 ft 8+12 in (1,435 mm) standard gauge
Wheel diameter33 in (838 mm)
LengthOver headstocks:
29 ft 10 in (9.09 m),
Over buffers:
35 ft 2 in (10.72 m)
Width9 ft 6 in (2.90 m)
Height13 ft 2+18 in (4.02 m)
Axle load 9  long tons  16 cwt (22,000 lb or 10 t)
Loco weight39 long tons 0 cwt (87,400 lb or 39.6 t)
Fuel type Diesel
Fuel capacity210 imp gal (950 L; 250 US gal)
Lubricant cap.32 imp gal (150 L; 38 US gal)
per engine
Coolant cap.40 imp gal (180 L; 48 US gal)
per engine
Sandbox cap.8 cu ft (0.23 m3)
Prime mover Caterpillar D17000, 2 of
RPM range350–1000
Engine type Four-stroke V8 diesel
Aspiration Normally aspirated
Generator General Electric GT 555A
Traction motors General Electric 733, 4 of
Cylinders 8
Cylinder size 5.75 in × 8 in (146 mm × 203 mm)
Performance figures
Maximum speed35 mph (56 km/h)
Power outputGross:
190 hp (142 kW) per engine
For traction:
175 hp (130 kW) per engine
Tractive effort Continuous:
13,000 lbf (57.83 kN)
at 7.5 mph (12.1 km/h)
Career
Number in class4
Numbers7920–7923
Delivered1943
Preserved7921, 7922
Disposition2 preserved, 2 unknown

The 79 class is a diesel-electric locomotive built by General Electric, Erie, United States for the Department of Railways New South Wales in 1943.

Contents

Importation

In 1943, during World War II, four diesel-electric industrial shunting type locomotives built by General Electric Company, Erie for the United States Army Transportation Corps (USATC) were imported from the United States of America by the Department of Supply under Lend-Lease conditions for use at the Dunheved munitions factory in Sydney. They were four units of 58 units built for the USATC by General Electric numbered 8499-8528 & 7900-7929. [1]

Before entering service in New South Wales, the 4 locos were fitted with buffers and chain coupler to NSWGR standards. The cab profile was also altered to fit within the New South Wales loading gauge. It seems that only one unit was used at the Dunheved facility. Being of the hood type, with a central cab, they could work in either direction without turning. [2] [3]

Operations

7920 in Sydney Yard in September 1969 Sydney 7920.jpg
7920 in Sydney Yard in September 1969
DE91 (ex 7922) at the National Railway Museum, Port Adelaide in October 2010 DE 91.jpg
DE91 (ex 7922) at the National Railway Museum, Port Adelaide in October 2010

In 1945, the BHP became interested in the possible dieselisation at its Australian Iron & Steel works in Port Kembla and one unit was loaned to the company in April. Whilst it proved too light for the tasks of hauling ingots and ladles, it did lead to the commencement of dieselisation five years later. [4]

At the end of that war, they were put into use by the New South Wales Department of Railways as shunters at Sydney Central station and Eveleigh Carriage Workshops. They were numbered 7920 to 7923, these being the numbers allocated by US authorities. In April 1948, the Commonwealth Government took 7921 and 7922 for use at Woomera Rocket Range and 7920 and 7923 were purchased by the NSWGR in September that year.

In 1950, the two owned by the Commonwealth Government were transferred to Commonwealth Railways as the DE Class and used as shunters at Port Augusta and Port Pirie. [5] In July 1975, both were included in the transfer of the Commonwealth Railways to Australian National.

Disposal & preservation

In October 1974, the two NSWGR units were sold to the British Phosphate Commission for use on Christmas Island. In 1979, both were rebuilt by FR Tulk, Perth with Caterpillar D3306 engines and lower profile noses. [6] This railway closed in 1987. Following their retirement in the early 1980s, 7921 returned to New South Wales and is preserved at the NSW Rail Museum, Thirlmere, while 7922 is with the National Railway Museum, Port Adelaide. [7] [8]

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References

Notes

  1. Allied Military Locomotives of the Second World War. Tourret Publishing. 1995. ISBN   0-905878-06-X.
  2. A Century Plus of Locomotives. Australian Railway Historical Society, New South Wales Division. 1965.
  3. The Early Diesel and Electric Locomotives of the NSWGR. New South Wales Rail Transport Museum. 1997. ISBN   9780909862527.
  4. Oberg, Leon (2007). Locomotives of Australia. Rosenberg. ISBN   978-1-877058-54-7.
  5. Standard Gauge DE Chris' Commonwealth Railways Pages
  6. Oberg, Leon (1984). Locomotives of Australia 1850s – 1980s. Frenchs Forest: Reed Books. p. 174. ISBN   0-730100-05-7.
  7. DE-class Bo+Bo diesel electric locomotive No.91 Archived 10 January 2014 at the Wayback Machine National Railway Museum
  8. 79 Class Vicsig

Bibliography

  • Fluck, Ronald E; Marshall, Barry; Wilson, John (1996). Locomotives and Railcars of the Commonwealth Railways. Welland, SA: Gresley Publishing. ISBN   1876216018.
  • New South Wales Rail System Locomotives. Sydney: Archives Section, State Rail Authority of New South Wales. 1984.