New South Wales 81 class locomotive

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New South Wales 81 class
300px
Pacific National 8169 and 8137 at Temora in November 2011
Type and origin
Power type Diesel-electric
Builder Clyde Engineering, Kelso
Serial number 82-1020 to 82-1034
83-1035 to 83-1058
84-1059 to 84-1082
85-1083 to 85-1099
91-1278 to 91-1281
Model Electro-Motive Division JT26C-2SS
Build date 1982-1985, 1991
Total produced 84
Specifications
UIC classification Co-Co
Gauge 1,435 mm (4 ft 8 12 in)
Wheel diameter 1,016 mm (40 in)
Length Over headstocks:
19.760 m (64 ft 10 in),
Over coupler pulling faces:
21.156 m (69 ft 5 in)
Width 2.968 m (9 ft 9 in)
Height 4.267 m (14 ft 0 in)
Axle load 21.5 t (21.2 long tons; 23.7 short tons)
Locomotive weight 129 t (127.0 long tons; 142.2 short tons)
Fuel type Diesel
Fuel capacity 6,600 L (1,450 imp gal; 1,740 US gal)
Lubricant capacity 920 L (202 imp gal; 243 US gal)
Coolant capacity 1,117 L (246 imp gal; 295 US gal)
Sandbox capacity 0.475 m3 (16.8 cu ft)
Prime mover EMD 16-645E3B
Engine RPM range 318-904
Engine type Two-stroke V16 diesel
Aspiration Turbocharged
Alternator Electro-Motive Division AR16
Traction motors Electro-Motive Division D77, 6 of
Cylinders 16
Cylinder size 229 mm × 254 mm (9.0 in × 10.0 in)
Performance figures
Maximum speed 115 km/h (71 mph)
Power output Gross:
2,460 kW (3,300 hp)
For traction:
2,240 kW (3,000 hp)
Tractive effort Continuous:
337.00 kN (75,761 lbf)
at 19.2 km/h (11.9 mph)
Career
Operator(s) State Rail Authority
Number in class 84
Number(s) 8101-8184
First run 29 October 1982
Disposition 83 in service, 1 scrapped

The 81 class are a class of diesel locomotives built by Clyde Engineering, Kelso for the State Rail Authority.

History[edit]

Eighty 81 class locomotives were built by Clyde Engineering, Kelso between September 1982 and February 1986, to replace 1950s vintage 42 and 44 class locomotives as well as provide additional capacity. The first 40 were based at Broadmeadow Locomotive Depot to operate Hunter Valley coal trains, while the remaining 40 were concentrated on the Main South line between Sydney and Albury hauling both passenger and freight trains.[1] The final 15 were equipped with V/Line radios, and from July 1986 operated through to Melbourne.[2]

In 1991, a further four units were built at Kelso using many components from spares held.[3] Following the delivery of the 90 class in 1994, the Broadmeadow based units were released to replace older locomotives on other freight duties. This saw their sphere of operation extended to Brisbane and Broken Hill.[4][5]

In the mid-1990s some of the later locomotives were leased to National Rail. These were later exchanged for 13 of the earlier locomotives which were permanently transferred to National Rail for use as high-power shunters around Australia. All were reunited when National Rail and FreightCorp were both sold to form Pacific National in February 2002.

In February 1999, 81s began operating in South Australia when FreightCorp won a contract to haul brown coal from Leigh Creek to the Northern Power Station at Port Augusta.[6][7]

As at February 2013 Pacific National operated 83, primarily in New South Wales.[8][9] One was written off following a derailment near Forbes on 11 March 2007.

References[edit]

  1. ^ Julian Insall (January 1994). "Exit the Sydney/Melbourne express". Newsrail (Australian Railway Historical Society (Victorian Division)): pages7–9. 
  2. ^ "V/Line Standard Gauge Report" Railway Digest August 1986 page 247
  3. ^ "New 81 class locos handed over" Railway Digest August 1991 page 269
  4. ^ "All Change on the Coast" Railway Digest August 1994 page 38
  5. ^ "Broken Hill" Railway Digest October 1994 page 34
  6. ^ "Freight Carriers move into New Markets" Railway Digest January 1999 page 9
  7. ^ "Ten-Year Leigh Creek Contract for FreightCorp as NSW Flows Lost" Railway Digest October 1999 page 8
  8. ^ 81 Class Railpage
  9. ^ 81 Class Vicsig

Further reading[edit]

  • New South Wales Rail System Locomotives. Sydney: Archives Section, State Rail Authority of New South Wales. 1984. 
National Rail liveried 8112 at Kewdale in September 2009