Tasmanian Government Railways R class

Class of railway locomotives in Tasmania, Australia From Wikipedia, the free encyclopedia

Tasmanian Government Railways R class

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

Quick Facts Type and origin, Power type ...
Tasmanian Government Railways R class
Thumb
R class departing Hobart station circa 1940
Type and origin
Power typeSteam
BuilderPerry Engineering
Serial number243-246
Build date1923
Total produced4
Specifications
Configuration:
  Whyte4-6-2
Gauge1,067 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)
Wheelbase27 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 load12+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)
Cylinders2
Cylinder size20 in × 24 in (508 mm × 610 mm)
Valve gearWalschaerts
Valve typePiston 9 in (229 mm) diameter
Loco brakeSteam
Train brakesVacuum
Performance figures
Tractive effort23,738 lbf (105.59 kN)
Factor of adh.3.59
Career
OperatorsTasmanian Government Railways
Number in class4
NumbersR1-R4
DispositionAll scrapped
Close

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 All were withdrawn in 1956/57.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

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