South Australian Railways 600 class (steam)

The South Australian Railways 600 class was a class of 4-6-2 steam locomotives operated by the South Australian Railways.

This article is about the South Australian Railways steam locomotive class. For the South Australian Railways diesel locomotive class, see South Australian Railways 600 class (diesel).

South Australian Railways 600 Class
South Australian Railways 600 Class Locomotive No. 605, c. 1926
Type and origin
Power typeSteam
BuilderArmstrong Whitworth
Serial number623-632
Build date1925
Total produced10
RebuilderIslington Railway Workshops
Rebuild date1939-1942
Number rebuilt10
Specifications
Configuration:
​
 • Whyte4-6-2
Gauge1,600 mm (5 ft 3 in)
Leading dia.2 ft 9 in (838 mm)
Driver dia.6 ft 3 in (1,905 mm)
Trailing dia.3 ft 6 in (1,067 mm)
Length79 ft 3+1⁄4 in (24.162 m).
Height13 ft 11+1⁄2 in (4,254.5 mm)
Axle load23 long tons 13 cwt 2 qtr
(26.52 short tons; 24.05 t)
Adhesive weight70.555 long tons (79.022 short tons; 71.687 t)
Loco weight116 long tons 19 cwt 2 qtr
(131.01 short tons; 118.85 t)
Tender weight83.55 long tons (93.58 short tons; 84.89 t)
Total weight199 long tons 11 cwt 2 qtr
(223.52 short tons; 202.78 t) (as built)
196 long tons 19 cwt 2 qtr
(220.61 short tons; 200.14 t) (rebuilt)
Fuel typeCoal
Fuel capacity12 long tons (13 short tons; 12 t) (as built)
6 long tons (6.7 short tons; 6.1 t) coal,
1,912 imp gal
(2,296 US gal; 8,690 L) oil (rebuilt)
Water cap.7,130 imp gal
(8,560 US gal; 32,400 L) (as built)
7,250 imp gal
(8,710 US gal; 33,000 L) (rebuilt)
Firebox:
 • Firegrate area		55 sq ft (5.1 m2)
Boiler pressure200 psi (1,400 kPa) (as built)
215 psi (1,480 kPa) (rebuilt)
Heating surface:
 • Tubes and flues		2,953 sq ft (274.3 m2)
 • Firebox270 sq ft (25 m2) (as built)
330 sq ft (31 m2) (rebuilt)
Superheater:
​
 • Heating area743 sq ft (69.0 m2)
Cylinders2
Cylinder size24 in × 28 in (610 mm × 711 mm)
Valve gearWalschaerts
Valve typePiston
Performance figures
Tractive effort36,600 lbf (162.80 kN) as built
39,300 lbf (174.82 kN) rebuilt
Factor of adh.4.43 (as built) 4.04 (rebuilt)
Career
OperatorsSouth Australian Railways
Class600
Number in class10
Numbers600-609
First run10/5/1926
Withdrawn1958-1961
Scrapped1961-1963
DispositionAll scrapped

History

The 600 class were part of larger order for 30 steam locomotives placed with Armstrong Whitworth, England in 1924, as part of the rehabilitation of the state's rail system, overseen by railways commissioner William Webb. The 600 class design was based on the USRA Light Pacific, although modifications were made by SAR's Chief Mechanical Engineer, Fred Shea, to allow them to fit South Australia's tighter loading gauge. They arrived in Adelaide in 1926.[1]

609 was named Duke of Gloucester after hauling the Duke's Royal Train in 1934 and so became Australia's first "royal" engine.

The entire class received upgraded boilers and front ends from the late 1930s onwards, and was reclassified as the 600C class. They were also fitted with large smoke deflectors over their lifetime. Ten locomotives of the South Australian Railways 620 class were built at Islington Railway Workshops in 1936–1938, to a similar design.

All examples of the 600 class were withdrawn between 1955 and 1961. None were preserved.[1]

SAR 600-class locomotive in 1926

Class list
NumberDate in ServiceDate CondemnedName
60014 August 1926June 1959-
60110 May 1926September 1958-
60225 May 1926June 1959-
60318 May 1926July 1961-
60413 August 1926June 1959-
6056 July 1926September 1958-
6068 July 1926May 1960-
60722 June 1926June 1959-
60822 July 1926May 1960-
60921 August 1926June 1959Duke of Gloucester

References
  1. Oberg, Leon (1984). Locomotives of Australia 1850s-1980s. Frenchs Forest: Reed Books. p. 148. ISBN 0 7301 0005 7.
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