South Australian Railways B class

The South Australian Railways B class was a class of 2-4-0T steam locomotives operated by the South Australian Railways.

South Australian Railways B class
The first locomotive manufactured at the Government Railway workshops, Adelaide, S.A. http://nla.gov.au/nla.obj-145876288/view
Type and origin
Power typeSteam
BuilderRobert Stephenson and Company
Build date1856
Total produced2
Rebuild dateB 4 (1875 & 1892)
B 7 (1876 & 1887)
Specifications
Configuration:
​
 • Whyte2-4-0 (as built)
2-4-0T (after rebuild)
Gauge1,600 mm (5 ft 3 in)
Driver dia.5 ft 6 in (1,676 mm)
Height12 ft 3 in (3,733.8 mm)
Axle load12 long tons 9 cwt (27,900 lb or 12.6 t)
Loco weight33 long tons 0 cwt (73,900 lb or 33.5 t)
Fuel typeCoal
Fuel capacity3 long tons 15 cwt (8,400 lb or 3.8 t) (Tender)
0 long tons 6 cwt (700 lb or 0.3 t) (Tank)
Water cap.1,060 imp gal
(1,273 US gal; 4,819 L) (Tender)
500 imp gal
(600 US gal; 2,273 L) (Tank)
Boiler pressure130 psi (896 kPa)
Heating surface:
 • Tubes		728 sq ft (67.6 m2)
 • Firebox66 sq ft (6.1 m2)
Cylinders2
Cylinder size14 in × 20 in (356 mm × 508 mm)
Performance figures
Tractive effort6,562 lbf (29.19 kN)
Career
OperatorsSouth Australian Railways
ClassB
Numbers4, 7
Withdrawn1935, 1938
DispositionBoth scrapped

History

In 1856, the South Australian Railways ordered two 2-4-0 tender locomotives from Robert Stephenson and Company, the first arriving in November 1856 and the second in March 1858. They entered service on the Gawler and Outer Harbor lines. In 1875, both were rebuilt as 2-4-0T tank engines. In 1887, number 7 was rebuilt by Islington Railway Workshops as a crane locomotive with number 4 following in 1893. Both were withdrawn and scrapped in the 1930s.[1]

Class list
NumberDate in ServiceDate Condemned
4November 1856April 1938
7March 1858July 1935

References
  1. Oberg, Leon (1984). Locomotives of Australia 1850s-1980s. Frenchs Forest: Reed Books. pp. 14/15. ISBN 0-7301-0005-7.
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