South Australian Railways M class (second)
Type and origin
Power typeSteam
BuilderPhoenix Foundry - Ballarat, Victoria
David Munro & Co. - Melbourne, Victoria
Build date1889-1894
Total produced20
Specifications
Configuration:
​
 • Whyte2-4-2T(1′B1′ T)
Gauge1,600 mm (5 ft 3 in)
Driver dia.5 ft 0 in (1,524 mm)
Length33 ft 8 in (10.26 m)
Height12 ft 9+1⁄2 in (3,898.9 mm)
Axle load16 long tons 8 cwt (36,700 lb or 16.7 t)
Total weight53 long tons 8 cwt (119,600 lb or 54.3 t)
Fuel typeCoal
Fuel capacity2 long tons 10 cwt (5,600 lb or 2.5 t)
Water cap.1,600 imp gal
(1,900 US gal; 7,300 L)
Firebox:​
 • Grate area17.8 sq ft (1.65 m2)
Boiler pressure140 psi (965 kPa)
Heating surface:​
 • Tubes988.7 sq ft (91.85 m2)
 • Firebox83.4 sq ft (7.75 m2)
Cylinders2
Cylinder size17.5 in × 26 in
(444 mm × 660 mm)
Performance figures
Tractive effort14,025 lbf (62.39 kN)
Career
OperatorsSouth Australian Railways
Victorian Railways
ClassM
Numbers256-275
Delivered1920
First run1920
Last run1925-1935
Retired1925-1935
Withdrawn1925-1935
Preserved0
Scrapped1925-1935
DispositionAll SAR variants scrapped

The South Australian Railways M class (second) was a group of twenty 2-4-2T engines sold to the SAR by the Victorian Railways for $3,300 each between June 1920 to October 1922. The class was formerly the Victorian Railways' E class.


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