South Australian Railways 500 class (steam)

Specifications
Specifications
Configuration:;
• Whyte	As built: 4-8-2 2'D1' 2'2′; With booster:4-8-4 2'D2' 2'2'
Gauge	5 ft 3 in (1,600 mm)
Leading dia.	33 in (838 mm)
Driver dia.	63 in (1,600 mm)
Trailing dia.	36 in (914 mm) 42 in (1,067 mm)
Length	83 ft 11 in (25,578 mm) (as built); 84 ft 2 in (25,654 mm) (rebuilt)
Height	13 ft 11+1⁄2 in (4,254.5 mm)
Axle load	22 long tons 7 hundredweight 2 quarters (25.06 short tons; 22.73 t) (as built); 222 long tons 3 hundredweight (24.8 short tons; 22.5 t) (rebuilt)
Adhesive weight	88.85 long tons (99.51 short tons; 90.28 t) (as built); 87.20 long tons (97.66 short tons; 88.60 t) (rebuilt)
Loco weight	135.80 long tons (152.10 short tons; 137.98 t) (as built); 143.80 long tons (161.06 short tons; 146.11 t) (rebuilt)
Tender weight	85.15 long tons (95.37 short tons; 86.52 t) (as built); 78.80 long tons (88.26 short tons; 80.06 t) (rebuilt)
Total weight	218 long tons 13 hundredweight (244.9 short tons; 222.2 t) (as built); 222 long tons 6 hundredweight (249.0 short tons; 225.9 t) (rebuilt)
Fuel type	Coal
Fuel capacity	12 long tons (13 short tons; 12 t) (as built); 11 long tons (12 short tons; 11 t) (rebuilt)
Water cap.	8,300 imperial gallons (10,000 US gal; 38,000 L) as built (Water capacity reduced to 7,100 imperial gallons (8,500 US gal; 32,000 L) in 1930); 7,000 imperial gallons (8,400 US gal; 32,000 L) (rebuilt)
Firebox:
• Grate area	66.6 sq ft (6.19 m2)
Boiler pressure	200 psi (1,379 kPa)
Heating surface:
• Firebox	395 sq ft (36.7 m2)
• Tubes and flues	3,253 sq ft (302.2 m2)
Superheater:;
• Heating area	835 sq ft (77.6 m2)
Cylinders	2
Cylinder size	26 in × 28 in (660 mm × 711 mm)
Valve gear	Walschaerts valve gear
Valve type	Piston

Type and origin
Type and origin
Power type	Steam
Designer	USRA Light Mikado modified by Fred Shea
Builder	Armstrong Whitworth
Serial number	633-642
Build date	1925
Total produced	10
Rebuilder	Islington Railway Workshops
Rebuild date	1929-1936
Number rebuilt	10

South Australian Railways 500 class
South Australian Railways 500 class
	South Australian Railways 500B class locomotive no. 504 "Tom Barr Smith", newly streamlined, about 1937
Power type
Type and origin
Power type	Steam
Designer	USRA Light Mikado modified by Fred Shea
Builder	Armstrong Whitworth
Serial number	633-642
Build date	1925
Total produced	10
Rebuilder	Islington Railway Workshops
Rebuild date	1929-1936
Number rebuilt	10
Configuration:;
Specifications
Configuration:;
• Whyte	As built: 4-8-2 2'D1' 2'2′; With booster:4-8-4 2'D2' 2'2'
Gauge	5 ft 3 in (1,600 mm)
Leading dia.	33 in (838 mm)
Driver dia.	63 in (1,600 mm)
Trailing dia.	36 in (914 mm) 42 in (1,067 mm)
Length	83 ft 11 in (25,578 mm) (as built); 84 ft 2 in (25,654 mm) (rebuilt)
Height	13 ft 11+1⁄2 in (4,254.5 mm)
Axle load	22 long tons 7 hundredweight 2 quarters (25.06 short tons; 22.73 t) (as built); 222 long tons 3 hundredweight (24.8 short tons; 22.5 t) (rebuilt)
Adhesive weight	88.85 long tons (99.51 short tons; 90.28 t) (as built); 87.20 long tons (97.66 short tons; 88.60 t) (rebuilt)
Loco weight	135.80 long tons (152.10 short tons; 137.98 t) (as built); 143.80 long tons (161.06 short tons; 146.11 t) (rebuilt)
Tender weight	85.15 long tons (95.37 short tons; 86.52 t) (as built); 78.80 long tons (88.26 short tons; 80.06 t) (rebuilt)
Total weight	218 long tons 13 hundredweight (244.9 short tons; 222.2 t) (as built); 222 long tons 6 hundredweight (249.0 short tons; 225.9 t) (rebuilt)
Fuel type	Coal
Fuel capacity	12 long tons (13 short tons; 12 t) (as built); 11 long tons (12 short tons; 11 t) (rebuilt)
Water cap.	8,300 imperial gallons (10,000 US gal; 38,000 L) as built (Water capacity reduced to 7,100 imperial gallons (8,500 US gal; 32,000 L) in 1930); 7,000 imperial gallons (8,400 US gal; 32,000 L) (rebuilt)
Firebox:
• Grate area	66.6 sq ft (6.19 m2)
Boiler pressure	200 psi (1,379 kPa)
Heating surface:
• Firebox	395 sq ft (36.7 m2)
• Tubes and flues	3,253 sq ft (302.2 m2)
Superheater:;
• Heating area	835 sq ft (77.6 m2)
Cylinders	2
Cylinder size	26 in × 28 in (660 mm × 711 mm)
Valve gear	Walschaerts valve gear
Valve type	Piston
Tractive effort
Performance figures
Tractive effort	51,000 lb (23,000 kg) (as built); 59,000 lb (27,000 kg) (rebuilt)
Factor of adh.	4
Operators
Career
Operators	South Australian Railways
Class	500
Number in class	10
Numbers	500-509
First run	22/5/1926
Last run	11/5/1963
Withdrawn	1958-1963
Preserved	504
Scrapped	1961-1965
Disposition	1 preserved, 9 scrapped

The South Australian Railways 500 class was a class of 4-8-2 steam locomotives operated by the South Australian Railways. The locomotives were rebuilt in 1928, when booster engines were installed, becoming the 500B class with a wheel arrangement of 4-8-4 and a tractive effort of 59,000 pounds-force (260 kN). The 500B class were the second-most-powerful non-articulated steam locomotives to operate in Australia, behind the NSWGR D57 4-8-2.