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Tasmanian Government Railways Q class

The Tasmanian Government Railways Q class was a class of 4-8-2 steam locomotives operated by the Tasmanian Government Railways.

Tasmanian Government Railways Q class
Type and origin
Power typeSteam
BuilderPerry Engineering
Walkers Limited
Clyde Engineering
Build date1922-1945
Specifications
Configuration:
​
 • Whyte4-8-2
Gauge1,067 mm (3 ft 6 in)
Driver dia.4 ft 0 in (1,219 mm)
Total weight98 long tons 2 cwt (219,700 lb or 99.7 t)
Fuel typeCoal
Boiler pressureQ1-Q15: 160 lbf/in2 (1.10 MPa)
Q16-Q19: 180 lbf/in2 (1.24 MPa)
Cylinder size20 in × 24 in (508 mm × 610 mm)
Performance figures
Tractive effortQ1-Q15: 27,200 lbf (120.99 kN)
Q16-Q19: 30,600 lbf (136.12 kN)
Career
OperatorsTasmanian Government Railways
NumbersQ1-Q19
Retired1957-1964
PreservedQ5
Disposition1 preserved, 18 scrapped

History

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In 1922/23, the Tasmanian Government Railways took delivery of six 4-8-2 locomotives from Perry Engineering, Gawler followed by a further three in 1929 from Walkers Limited, Maryborough.[1] Between 1936 and 1945, a further 20 were built by Clyde Engineering, Sydney.[2][3] The final four were delivered with higher pressure boilers.[4][5][6]

They operated on the Western, Derwent Valley, Main and Fingal lines. Following the arrival of the X class, they began to operate suburban passenger services in Hobart. The first was withdrawn in 1957 with the final examples withdrawn in January 1964 following the Y class entering service.[5][7] Q5 has been preserved at the Tasmanian Transport Museum, Glenorchy.[8][9]

References

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  1. ^ 4-8-2 Locomotives Locomotive, Railway Carriage & Wagon Review issue 368 April 1923 page 97
  2. ^ More Locomotives for Tasmania Truck & Bus Transportation April 1940 page 24
  3. ^ Contracts & Tenders Railway Gazette 4 October 1940 page 371
  4. ^ Turner, Jim (1997). Australian Steam Locomotives 1896-1958. Kenthurst: Kangaroo Press. p. 132. ISBN 086417778X.
  5. ^ a b Oberg, Leon (2010). Locomotives of Australia 1850s-2010. Dural: Rosenberg Publishing. p. 178/179. ISBN 9781921719011.
  6. ^ Steam Locomotives of the Tasmanian Government Railways and its Constituents Australian Railway History issue 917 March 2014 pages 11, 12
  7. ^ The High Pressure Q Class Locomotives of the TGR Australian Railway Historical Society Bulletin issue 589 November 1986 pages 256-259
  8. ^ Q class locomotive preserved Divisional Diary July 1965 page 16
  9. ^ Q5 Australian Steam
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  Media related to TGR Q class locomotives at Wikimedia Commons

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