Tasmanian Government Railways R class

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Tasmanian Government Railways R class
TGR R Class.jpg
R class departing Hobart station circa 1940
Type and origin
Power typeSteam
Builder Perry Engineering
Serial number243-246
Build date1923
Total produced4
Specifications
Configuration:
   Whyte 4-6-2
Gauge 1,067 mm (3 ft 6 in)
Leading dia. 2 ft 4+12 in (724 mm)
Driver dia.4 ft 7 in (1,397 mm)
Trailing dia. 3 ft (914 mm)
Wheelbase 27 ft 3 in (8,306 mm) engine, 9 ft 9 in (2,972 mm) coupled, 50 ft 10+14 in (15,500 mm) total
Length60 ft 2+14 in (18,345 mm)
Height12 ft 3+38 in (3,743 mm)
Axle load 12+34 long tons (13.0 t; 14.3 short tons)
Loco weight58+34 long tons (59.7 t; 65.8 short tons)
Tender weight39 long tons (39.6 t; 43.7 short tons)
Total weight97+34 long tons (99.3 t; 109.5 short tons)
Fuel typeCoal
Fuel capacity6 long tons (6.1 t; 6.7 short tons)
Water cap.3,500 imp gal (16,000 L)
Firebox:
  Grate area32.5 sq ft (3.02 m2)
Boiler pressure160 lbf/in2 (1.10 MPa)
Heating surface:
  Firebox134 sq ft (12.45 m2)
  Tubes and flues1,420 sq ft (131.92 m2)
  Total surface1,554 sq ft (144.37 m2)
Superheater:
  TypeSchmidt
  Heating area320 sq ft (29.73 m2)
Cylinders 2
Cylinder size 20 in × 24 in (508 mm × 610 mm)
Valve gear Walschaerts
Valve typePiston 9 in (229 mm) diameter
Loco brake Steam
Train brakes Vacuum
Performance figures
Tractive effort 23,738 lbf (105.59 kN)
Factor of adh. 3.59
Career
Operators Tasmanian Government Railways
Number in class4
NumbersR1-R4
DispositionAll scrapped

The Tasmanian Government Railways R class was a class of 4-6-2 steam locomotives operated by the Tasmanian Government Railways.

Contents

History

In 1923, the Tasmanian Government Railways took delivery of four 4-6-2 locomotives from Perry Engineering, Gawler as replacements for the A class. They operated on the Western, Derwent Valley, Main and Fingal lines. [1] [2] [3]

In 1938, R3 and R4 were fitted with streamlining similar to the Victorian Railways S class for operation of Hobart to Launceston expresses. [4] [5] [6] This was removed in the late 1940s. All were withdrawn in 1956/57.

All were scrapped in the early 1960s. [1] [2]

References

  1. 1 2 Oberg, Leon (2010). Locomotives of Australia 1850s-2010. Dural: Rosenberg Publishing. p. 180. ISBN   9781921719011.
  2. 1 2 Steam Locomotives of the Tasmanian Government Railways and its Constituents Australian Railway History issue 917 March 2014 page 12
  3. The Original Tasmanian Mountains and Pacifics New Zealand Railway Observer issue 177 Autumn 1984 pages 14-23
  4. Boat Express Train and Steam Railcar Locomotive, Railway Carriage & Wagon Review issue 553 September 1938 page 270
  5. Recent Improvements on Tasmanian Railways Truck & Bus Transportation March 1939 page 650
  6. Streamlined Trains in Australia Railway Gazette 21 April 1939 page 659

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