South Australian Railways 740 class

Specifications
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 1+1⁄2 in (22.29 m)
Height	14 ft 0 in (4,254.5 mm)
Axle load	17 long tons 17 cwt (40,000 lb or 18.1 t)
Loco weight	93.95 long tons 0 cwt (210,400 lb or 95.5 t)
Tender weight	71.10 long tons 0 cwt (159,300 lb or 72.2 t)
Total weight	165 long tons 1 cwt (369,700 lb or 167.7 t)
Fuel type	Coal
Fuel capacity	10 long tons 0 cwt (22,400 lb or 10.2 t)
Water cap.	6,350 imp gal; (7,630 US gal; 28,900 L)
Firebox:
• Grate area	47 sq ft (4.4 m2)
Boiler pressure	200 psi (1,379 kPa)
Heating surface:
• Firebox	194 sq ft (18.0 m2)
• Tubes	2,400 sq ft (220 m2)
Superheater:;
• Heating area	620 sq ft (58 m2)
Cylinders	2
Cylinder size	22 in × 28 in; (559 mm × 711 mm)
Valve gear	Walschaerts
Valve type	Piston

Type and origin
Type and origin
Power type	Steam
Builder	Clyde Engineering
Serial number	520-533
Build date	1951-1953
Total produced	10

South Australian Railways 740 Class
South Australian Railways 740 Class
	740 at Mile End in March 1952
Power type
Type and origin
Power type	Steam
Builder	Clyde Engineering
Serial number	520-533
Build date	1951-1953
Total produced	10
Configuration:;
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 1+1⁄2 in (22.29 m)
Height	14 ft 0 in (4,254.5 mm)
Axle load	17 long tons 17 cwt (40,000 lb or 18.1 t)
Loco weight	93.95 long tons 0 cwt (210,400 lb or 95.5 t)
Tender weight	71.10 long tons 0 cwt (159,300 lb or 72.2 t)
Total weight	165 long tons 1 cwt (369,700 lb or 167.7 t)
Fuel type	Coal
Fuel capacity	10 long tons 0 cwt (22,400 lb or 10.2 t)
Water cap.	6,350 imp gal; (7,630 US gal; 28,900 L)
Firebox:
• Grate area	47 sq ft (4.4 m2)
Boiler pressure	200 psi (1,379 kPa)
Heating surface:
• Firebox	194 sq ft (18.0 m2)
• Tubes	2,400 sq ft (220 m2)
Superheater:;
• Heating area	620 sq ft (58 m2)
Cylinders	2
Cylinder size	22 in × 28 in; (559 mm × 711 mm)
Valve gear	Walschaerts
Valve type	Piston
Tractive effort
Performance figures
Tractive effort	40,454 lbf (179,950 N)
Factor of adh.	3.81
Operators
Career
Operators	South Australian Railways
Class	740
Number in class	10
Numbers	740-749
First run	1/3/1952
Withdrawn	1963-1965
Scrapped	1963-1966
Disposition	All scrapped

The South Australian Railways 740 class was a class of 2-8-2 freight locomotives built by Clyde Engineering, Granville for the South Australian Railways in 1951-1952.

History

In the late 1940s, the Federal Government placed an order with Clyde Engineering, Granville for fifty 2-8-2 locomotives. These were ordered as part of Australia's contribution to the United Nations Relief and Rehabilitation Administration rehabilitation of China. With the first locomotives under construction, China fell to the Communists and Australia's obligations ceased.^[1]

The government was able to renegotiate the contract, with only twenty built. Ten were taken by the Commonwealth Railways as the L class, with the other ten going to the South Australian Railways as the 740 class after being converted for broad gauge operation. The 740 class remained in service until the early 1960s when replaced by diesels. The last was condemned in November 1965.^[1]

References

^ ^a ^b Oberg, Leon (1984). Locomotives of Australia 1850s-1980s. Frenchs Forest: Reed Books. p. 198. ISBN 0-730100-05-7.

External links

Media related to South Australian Railways 740 class at Wikimedia Commons

[LOberg-1] Oberg, Leon (1984). Locomotives of Australia 1850s-1980s. Frenchs Forest: Reed Books. p. 198. ISBN 0-730100-05-7.

[1]