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Specifications
Specifications
Configuration:;
• Whyte	0-4-2WT; 0-4-2T
• UIC	B1 T
Gauge	5 ft 3 in (1,600 mm)
Length	24 ft 1⁄2 in (7.33 m); 23 ft 3+1⁄2 in (7.10 m)
Axle load	8 long tons 3 cwt 2 qr (18,310 lb or 8.31 t); 8 long tons 6 cwt 3 qr (18,680 lb or 8.47 t)
Loco weight	22 long tons 10 cwt 2 qr (50,460 lb or 22.89 t); 22 long tons 8 cwt 3 qr (50,260 lb or 22.8 t)
Fuel type	Coal
Fuel capacity	0 long tons 19 cwt (2,100 lb or 1 t); 0 long tons 16 cwt 3 qr (1,880 lb or 0.85 t)
Water cap.	580 imp gal; (697 US gal; 2,637 L)
Firebox:
• Grate area	8.4 sq ft (0.78 m2)
Boiler pressure	130 psi (900 kPa)
Heating surface:
• Firebox	54 sq ft (5.0 m2)
• Tubes	454.4 sq ft (42.22 m2)
Cylinders	2
Cylinder size	12+1⁄2 in × 16 in; (318 mm × 406 mm)

Type and origin
Type and origin
Power type	Steam
Builder	Avonside Engine Company
Serial number	740-741, 855, 964 & 1020
Build date	1868-1874
Total produced	5
Rebuilder	Islington Railway Workshops
Rebuild date	1887-1915
Number rebuilt	5

South Australian Railways M Class (1st)
South Australian Railways M Class (1st)
	South Australian Railways M Class (1st) No. 43
Power type
Type and origin
Power type	Steam
Builder	Avonside Engine Company
Serial number	740-741, 855, 964 & 1020
Build date	1868-1874
Total produced	5
Rebuilder	Islington Railway Workshops
Rebuild date	1887-1915
Number rebuilt	5
Configuration:;
Specifications
Configuration:;
• Whyte	0-4-2WT; 0-4-2T
• UIC	B1 T
Gauge	5 ft 3 in (1,600 mm)
Length	24 ft 1⁄2 in (7.33 m); 23 ft 3+1⁄2 in (7.10 m)
Axle load	8 long tons 3 cwt 2 qr (18,310 lb or 8.31 t); 8 long tons 6 cwt 3 qr (18,680 lb or 8.47 t)
Loco weight	22 long tons 10 cwt 2 qr (50,460 lb or 22.89 t); 22 long tons 8 cwt 3 qr (50,260 lb or 22.8 t)
Fuel type	Coal
Fuel capacity	0 long tons 19 cwt (2,100 lb or 1 t); 0 long tons 16 cwt 3 qr (1,880 lb or 0.85 t)
Water cap.	580 imp gal; (697 US gal; 2,637 L)
Firebox:
• Grate area	8.4 sq ft (0.78 m2)
Boiler pressure	130 psi (900 kPa)
Heating surface:
• Firebox	54 sq ft (5.0 m2)
• Tubes	454.4 sq ft (42.22 m2)
Cylinders	2
Cylinder size	12+1⁄2 in × 16 in; (318 mm × 406 mm)
Tractive effort
Performance figures
Tractive effort	4,740 lbf (21.1 kN)
Operators
Career
Operators	South Australian Railways
Class	M
Number in class	5
Numbers	43-47
Withdrawn	1913-1917
Disposition	All scrapped in 1922

The South Australian Railways M Class (1st) locomotives were originally built by the Avonside Engine Company for the Canterbury Provincial Railways in 1868 to 1874. They were later sent to South Australia in 1878 and were first in service on the South Australian Railways between 1880 and 1881.^[1]

History

The two earlier built locomotives (Nos. 44 & 46) were fitted out with well tanks instead of side tanks, while the other M class locomotives (Nos. 43, 45 and 47) did have side tanks.

On their journey to South Australia, the ship which was carrying the M Class (as well as other locomotives destined for the country) got wrecked off New Zealand. All the locomotives on board were eventually salvaged, and the M Class entered service on the Port line and its branch lines. They also occasionally worked on the privately operated Glanville to Largs Bay railway line. Their duties included shunting on the wharves, and later on in their life they worked trains to Henley Beach, Outer Harbour, Semaphore and on mixed traffic trains on the Northern railway line. The class was extinct by 1922.^[2]

References

^ Drymalik, Chris. "Broad Gauge M-class 0-4-2 tank locomotives". Chris's Commonwealth Railways Information (ComRails). Retrieved 3 August 2019.
^ FLUCK, R. E.; SAMPSON, R.; BIRD, K. J. (1986). STEAM LOCOMOTIVES AND RAILCARS OF THE SOUTH AUSTRALIAN RAILWAYS. South Australia: Mile End Railway Museum (S.A.) Inc. p. 58. ISBN 0959-5073-37.