South Australian Railways R class

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South Australian Railways R & Rx class
South Australian Railways Rx 149, McLaren Vale, South Australia, 1920.jpeg
Rx149 with a load of wine casks at McLaren Vale
Type and origin
Power type Steam
Builder Dübs & Co (6)
James Martin & Co (24)
Islington Railway Workshops (14)
North British Locomotive Company (15)
Walkers Limited (25)
Build date 1886-1916
Total produced 84
Specifications
Configuration:
 • Whyte 4-6-0
Gauge 1,600 mm (5 ft 3 in)
Driver dia. 4 ft 6 in (1.372 m)
Length 49 ft 11 in (15.215 m)
Loco weight 40 long tons (40,642 kg) (R)
Tender weight 22 long tons (22,353 kg) (R)
Total weight 65 long tons (66,043 kg) (R), 88 long tons (89,412 kg)
Fuel type Coal
Fuel capacity 4 tons 18 cwt (R), 7 tons 16 cwt (Rx), 6 tons 17 cwt (Rx 6 wheel tender)
Water cap 2,040 gallons (R) 3,750 gallons (Rx), 3,200 gallons (Rx 6 wheel tender)
Boiler pressure 145 psi (1,000 kPa)
Heating surface:
 • Tubes
1,196 square feet (R), 1,208 square feet (Rx)
Cylinders 2
Cylinder size 18 in × 24 in (457 mm × 610 mm)
Valve gear Stephenson
Performance figures
Tractive effort 17,700 lbf (78.73 kN) (R) 21,420 lbf (95.28 kN)
Career
Operators South Australian Railways
Numbers 5, 9, 10, 15, 20*, 25*, 48, 55, 56, 91*-96*, 102*-107*, 138*-153*, 155, 158, 160, 190-203, 206-235 (* originally built as R class)
Disposition 10 preserved, 74 scrapped

The South Australian Railways R class, later upgraded to Rx Class was a class of 4-6-0 steam locomotives operated by the South Australian Railways.

History[edit]

In 1886, Dübs and Company of Glasgow delivered the first six R class. A further 24 had been built by James Martin & Co by November 1895. From 1899, all were rebuilt with higher powered Belpaire boilers and reclassified as the Rx class. A further 54 locomotives were built as Rx class by the Islington Railway Workshops, North British Locomotive Company and Walkers Limited with all in service by May 1916.[1]

R class were the predominant locomotive used on broad gauge main line services in South Australia from their introduction. After the introduction of the large Webb engines they were relegated to secondary lines and services such as shunting and hauling goods trains. A large group of Rx class locomotives, mainly early builds, were withdrawn from service in 1934, however the remainder continued to serve into the mid 1960s.[1]

Survivors[edit]

Several Rx class locomotives and one R class survive to this day in various states of preservation.

References[edit]

  1. ^ a b Oberg, Leon (1984). Locomotives of Australia 1850s-1980s. Frenchs Forest: Reed Books. p. 54. ISBN 0 7301 0005 7.
  2. ^ Rx5 Australian Steam
  3. ^ Rx55 Australian Steam
  4. ^ Rx93 National Railway Museum
  5. ^ Rx93 Australian Steam
  6. ^ Rx160 Australian Steam
  7. ^ Rx191 Australian Steam
  8. ^ Rx201 Australian Steam
  9. ^ Rx207 Australian Steam
  10. ^ Rx217 Australian Steam
  11. ^ Rx224 Australian Steam
  12. ^ Rx231 Australian Steam

External links[edit]

Media related to South Australian Railways R class at Wikimedia Commons