South Australian Railways 710 class

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 typeSteam
DesignerFred Shea
BuilderIslington Railway Workshops
Serial number44-53
Build date1928-1929
Total produced10
Specifications
Configuration:
​
 • Whyte2-8-2 1′D1′ 2′2′
Gauge1,600 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)
Length73 ft 2 in (22.30 m)
Height13 ft 6 1⁄2 in (4,127.5 mm)
Axle load18 long tons 13 cwt (41,800 lb or 18.9 t)
Total weight175 long tons 75 cwt (400,400 lb or 181.6 t)
Fuel typeCoal
Oil
Fuel capacity17 long tons 0 cwt (38,100 lb or 17.3 t)
Water cap5,400 imp gal
(6,500 US gal; 25,000 L)
Firebox:
 • Firegrate area		47 sq ft (4.4 m2)
Boiler pressure200 psi (1,379 kPa)
Heating surface:
 • Tubes		2,206 sq ft (204.9 m2)
 • Firebox195 sq ft (18.1 m2)
227 sq ft (21.1 m2) with syphons fitted
Superheater:
​
 • Heating area618 sq ft (57.4 m2)
Cylinders2
Cylinder size22 in × 28 in (559 mm × 711 mm)
Valve gearWalschaerts valve gear
Valve typePiston
Performance figures
Tractive effort40,418 lbf (179.79 kN)
48,418 lbf (215.37 kN) with booster
Factor of adh.4.0
Career
OperatorsSouth Australian Railways
Class710
Number in class10
Numbers710-719
First run25/10/1928
Last run1968
Withdrawn1961-1968
Scrapped1962-1968
Dispositionall 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 The first two were withdrawn in July 1961 with the remainder replaced as 830 diesel locomotives entered service. The last was withdrawn in September 1967.[1][2]

References
  1. Drymalik, Chris. "Broad Gauge 710 class 2-8-2 locomotives". Chris's Commonwealth Railways Page.
  2. Oberg, Leon (1984). Locomotives of Australia 1850s-1980s. Frenchs Forest: Reed Books. pp. 148–149. ISBN 0730100057.
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