Tasmanian Government Railways R class
Tasmanian Government Railways R Class streamlined locomotive, departing Hobart 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+1⁄2 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+1⁄4 in (15,500 mm) total
Length60 ft 2+1⁄4 in (18,345 mm)
Height12 ft 3+3⁄8 in (3,743 mm)
Axle load12+3⁄4 long tons (13.0 t; 14.3 short tons)
Loco weight58+3⁄4 long tons (59.7 t; 65.8 short tons)
Tender weight39 long tons (39.6 t; 43.7 short tons)
Total weight97+3⁄4 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 surface1,554 sq ft (144.37 m2) ​
 • Tubes and flues1,420 sq ft (131.92 m2)
 • Firebox134 sq ft (12.45 m2)
Superheater:
​
 • TypeSchmidt
 • Heating area320 sq ft (29.73 m2)
Cylinders2
Cylinder size20 in × 24 in (508 mm × 610 mm)
Valve gearWalschaert
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

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

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]

In the late 1930s, R3 and R4 were fitted with streamlining similar to the Victorian Railways S class for operation of Hobart to Launceston expresses. This was removed in the late 1940s. All were withdrawn in 1956-1957 due to a reorganisation of timetable to allow better use of the X Class diesels, much newer M class steam engines and DP 'diesel patrol' railcars.

After a period in storage in Launceston yard, due to their worn out condition and redundancy all was scrapped by the early 1960s, sadly just missing out on preservation.[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

Tasmanian Government Railways Locomotive diagram L14 https://stors.tas.gov.au/P2316-1-23$init=P2316-1-23_033

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