New South Wales X100 class locomotive

The X100 class were a group of rail tractors built by Chullora Railway Workshops in 1962 and operated by the New South Wales Government Railways of Australia.

New South Wales X100 class
Type and origin
Power typeDiesel-mechanical
BuilderChullora Railway Workshops
Build date1962
Total produced2
Specifications
Configuration:
 • UICB
Gauge4 ft 8+12 in (1,435 mm) standard gauge
Wheel diameter34 in (864 mm)
Wheelbase6 ft 6 in (1.98 m)
LengthOver headstocks:
19 ft 0 in (5.79 m),
Over coupler pulling faces: 22 ft 4+12 in (6.82 m)
Width9 ft 0+316 in (2.75 m)
Height11 ft 0+516 in (3.36 m)
Axle load8 long tons 16 cwt (19,700 lb or 8.9 t)
Loco weight17 long tons 14 cwt (39,600 lb or 18 t)
Fuel typeDiesel fuel
Fuel capacity86 imperial gallons
(390 litres; 103 US gallons)
Lubricant cap.Engine: 1.5 imperial gallons
(6.8 litres; 1.8 US gallons),
Transmission:
4.5 imperial gallons
(20 litres; 5.4 US gallons),
Final drive
Coolant cap.7.5 imperial gallons
(34 litres; 9.0 US gallons)
Prime moverBedford 300 series BIB
RPM range600–2500
Engine typeFour-stroke diesel
AspirationNormally aspirated
Cylinders6
Cylinder size3.875 in × 4.25 in
(98 mm × 108 mm)
TransmissionAllison CRT 3331-3, with BorgWarner M12 final drive unit, and chain drive to both axles
Train brakesNone
Performance figures
Maximum speed15 mph (24 km/h)
Power outputGross: 93 hp (69 kW),
For traction: 51 hp (38 kW)
Tractive effortContinuous: 3,800 lbf (16.90 kN) at 5 mph (8 km/h)
Career
OperatorsNew South Wales Government Railways
ClassX100
Number in class2
NumbersX101–X102
First run1962
Withdrawn1992
PreservedX101, X102
Disposition2 preserved

History

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A need existed for a small shunting unit that could handle the requirements at the smaller junction marshalling yards, larger intermediate stops and the workshop needs. To resolve this, the X100, and later X200s, was designed and built entirely in the system's own workshops from the early 1960s.[1]

X100 class were two 0-4-0 centre-cab diesel-hydraulic shunting locomotives built at the New South Wales Government Railways' Chullora Railway Workshops.

They were delivered in 1962 as the 80 class locomotives, but were re-classified as Shunting Tractors and renumbered X101 and X102 before being allotted to Wauchope and Coffs Harbour. Originally painted in a crimson red and cream colour scheme, they were later repainted in the standard Indian red with chrome lining.[2]

Photos dated 1977 and 1983, show X102 in an all-over chrome yellow paint scheme and working in the Sydney area. X101 was in an all-over Indian-red scheme in 1979 and working at Wauchope.[1]

X101 is now part of the State Rail Authority Heritage Fleet and is being restored by Historic Electric Traction[3] at Eveleigh Carriage Workshops.[4][5] X102 finished its service at the Petersham Training School and is now preserved at the Dorrigo Steam Railway & Museum.[6]

They were confined to yard limits due to a lack of a "train brake" and as such could not be operated in the same way as regular locomotives. This limitation, and a need for greater tractive effort, lead to the development of the larger and more power X200 class.

References

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  1. ^ a b Collins, Phil (August 1984). "Rail Tractors of the NSW Railways – X100 Class". Australian Model Railway Magazine. pp. 25–27, 30.
  2. ^ Clark, Peter J (1973). An Australian Diesel Locomotive Pocketbook. Australian Railway Historical Society NSW Division. ISBN 0-909650-02-0.
  3. ^ "Our Rolling Stock (photo)". Historic Electric Traction. Retrieved 22 June 2021.
  4. ^ RailCorp S170 Heritage & Conservation Register RailCorp
  5. ^ X101 – Shunting Vehicle – Rail Tractor Office of Environment & Heritage
  6. ^ X100/X200 Class Railpage

Further reading

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  • New South Wales Rail System Locomotives. Sydney: Archives Section, State Rail Authority of New South Wales. 1984.
 
X102 shunting at Coffs Harbour