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Specifications
Specifications
Configuration:;
• Whyte	4-6-2
Gauge	1,600 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)
Length	79 ft 3+1⁄4 in (24.162 m).
Height	13 ft 11+1⁄2 in (4,254.5 mm)
Axle load	23 long tons 13 cwt 2 qtr; (26.52 short tons; 24.05 t)
Adhesive weight	70.555 long tons (79.022 short tons; 71.687 t)
Loco weight	116 long tons 19 cwt 2 qtr; (131.01 short tons; 118.85 t)
Tender weight	83.55 long tons (93.58 short tons; 84.89 t)
Total weight	199 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 type	Coal
Fuel capacity	12 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:
• Grate area	55 sq ft (5.1 m2)
Boiler pressure	200 psi (1,400 kPa) (as built); 215 psi (1,480 kPa) (rebuilt)
Heating surface:
• Firebox	270 sq ft (25 m2) (as built); 330 sq ft (31 m2) (rebuilt)
• Tubes and flues	2,953 sq ft (274.3 m2)
Superheater:;
• Heating area	743 sq ft (69.0 m2)
Cylinders	2
Cylinder size	24 in × 28 in (610 mm × 711 mm)
Valve gear	Walschaerts
Valve type	Piston

Type and origin
Type and origin
Power type	Steam
Designer	Alco / USRA, modified by Fred Shea
Builder	Armstrong Whitworth
Serial number	623-632
Build date	1925
Total produced	10
Rebuilder	Islington Railway Workshops
Rebuild date	1939-1942
Number rebuilt	10

South Australian Railways 600 Class
South Australian Railways 600 Class
	600 class locomotive no. 605 soon after delivery
Power type
Type and origin
Power type	Steam
Designer	Alco / USRA, modified by Fred Shea
Builder	Armstrong Whitworth
Serial number	623-632
Build date	1925
Total produced	10
Rebuilder	Islington Railway Workshops
Rebuild date	1939-1942
Number rebuilt	10
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-2
Gauge	1,600 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)
Length	79 ft 3+1⁄4 in (24.162 m).
Height	13 ft 11+1⁄2 in (4,254.5 mm)
Axle load	23 long tons 13 cwt 2 qtr; (26.52 short tons; 24.05 t)
Adhesive weight	70.555 long tons (79.022 short tons; 71.687 t)
Loco weight	116 long tons 19 cwt 2 qtr; (131.01 short tons; 118.85 t)
Tender weight	83.55 long tons (93.58 short tons; 84.89 t)
Total weight	199 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 type	Coal
Fuel capacity	12 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:
• Grate area	55 sq ft (5.1 m2)
Boiler pressure	200 psi (1,400 kPa) (as built); 215 psi (1,480 kPa) (rebuilt)
Heating surface:
• Firebox	270 sq ft (25 m2) (as built); 330 sq ft (31 m2) (rebuilt)
• Tubes and flues	2,953 sq ft (274.3 m2)
Superheater:;
• Heating area	743 sq ft (69.0 m2)
Cylinders	2
Cylinder size	24 in × 28 in (610 mm × 711 mm)
Valve gear	Walschaerts
Valve type	Piston
Tractive effort
Performance figures
Tractive effort	36,600 lbf (162.80 kN) as built; 39,300 lbf (174.82 kN) rebuilt
Factor of adh.	4.43 (as built) 4.04 (rebuilt)
Operators
Career
Operators	South Australian Railways
Class	600
Number in class	10
Numbers	600-609
First run	10 May 1926
Withdrawn	1958-1961
Scrapped	1961-1963
Disposition	All scrapped

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

History

The 600 class were part of an order for 30 steam locomotives^{[note 1]} 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, including those necessary to fit South Australia's tighter loading gauge, which was lower than that of the United States. 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]

Class list

No.	Entered service	Condemned
600	14 August 1926	June 1959
601	10 May 1926	Sep 1958
602	25 May 1926	June 1959
603	18 May 1926	July 1961
604	13 August 1926	June 1959
605	6 July 1926	Sep 1958
606	8 July 1926	May 1960
607	22 June 1926	June 1959
608	22 July 1926	May 1960
609*	21 August 1926	June 1959
* Named Duke of Gloucester.