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The South Australian Railways 710 class was a class of 2-8-2 steam locomotives operated by the South Australian Railways.

South Australian Railways 710 Class
712 at Eden Hills in 1951
Type and origin Power type Steam Designer Fred Shea Builder Islington Railway Workshops Serial number 44-53 Build date 1928-1929 Total produced 10
Specifications Configuration: ​  • Whyte 2-8-2 1′D1′ 2′2′ Gauge 1,600 mm (5 ft 3 in) Leading dia. 2 ft 9 in (838 mm) Driver dia. 4 ft 9 in (1,448 mm) Trailing dia. 3 ft 6 in (1,067 mm) Length 73 ft 2 in (22.30 m) Height 13 ft 6+1⁄2 in (4,127.5 mm) Axle load 18 long tons 13 cwt (41,800 lb or 18.9 t) Total weight 175 long tons 75 cwt (400,400 lb or 181.6 t) Fuel type Coal Oil Fuel capacity 17 long tons 0 cwt (38,100 lb or 17.3 t) Water cap. 5,400 imp gal (6,500 US gal; 25,000 L) Firebox:  • Firegrate area 47 sq ft (4.4 m2) Boiler pressure 200 psi (1,379 kPa) Heating surface:  • Tubes 2,206 sq ft (204.9 m2)  • Firebox 195 sq ft (18.1 m2) 227 sq ft (21.1 m2) with syphons fitted Superheater: ​  • Heating area 618 sq ft (57.4 m2) Cylinders 2 Cylinder size 22 in × 28 in (559 mm × 711 mm) Valve gear Walschaerts valve gear Valve type Piston
Performance figures Tractive effort 40,418 lbf (179.79 kN) 48,418 lbf (215.37 kN) with booster Factor of adh. 4.0
Career Operators South Australian Railways Class 710 Number in class 10 Numbers 710-719 First run 25/10/1928 Last run 1968 Withdrawn 1961-1968 Scrapped 1962-1968 Disposition All scrapped

History

The 710 class were built by the Islington Railway Workshops as a modified version of the Armstrong Whitworth built 700 class locomotives. Coal shortages after World War II saw a number converted to burn oil. All were later converted back to coal burners. The first two were withdrawn in July 1961 with the remainder replaced as 830 diesel locomotives entered service. The last was withdrawn in September 1967.[1][2]

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