Victorian Railways A2 class

Specifications
Specifications
Configuration:;
• Whyte	4-6-0
Gauge	5 ft 3 in (1,600 mm)
Driver dia.	73 in (1.854 m)
Length	63 ft 3+3⁄4 in (19.30 m)
Axle load	17 long tons 10 cwt (39,200 lb or 17.8 t)
Adhesive weight	52 long tons 2 cwt (116,700 lb or 52.9 t)
Total weight	121 long tons 7 cwt (271,800 lb or 123.3 t)
Tender cap.	(after conversion to oil firing); 1,500 imp gal (6,800 L; 1,800 US gal) oil, 4,700 imp gal (21,000 L; 5,600 US gal) water
Firebox:
• Grate area	29 sq ft (2.7 m2)
Boiler pressure	185 psi (1,276 kPa)
Heating surface	2,040 sq ft (190 m2)
Cylinders	Two
Cylinder size	22 in × 26 in (559 mm × 660 mm)
Valve gear	Stephenson (125); Walschaerts (60)

Type and origin
Type and origin
Power type	steam
Builder	Newport Workshops; Ballarat North Workshops; Bendigo Workshops
Total produced	185

Victorian Railways A² Class (Walschaerts)
Victorian Railways A2 Class (Walschaerts)
	A2 986 leading Cruise Express' 'Southern Steam Spectacular' rounding the curve in Golden Square.
Power type
Type and origin
Power type	steam
Builder	Newport Workshops; Ballarat North Workshops; Bendigo Workshops
Total produced	185
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-0
Gauge	5 ft 3 in (1,600 mm)
Driver dia.	73 in (1.854 m)
Length	63 ft 3+3⁄4 in (19.30 m)
Axle load	17 long tons 10 cwt (39,200 lb or 17.8 t)
Adhesive weight	52 long tons 2 cwt (116,700 lb or 52.9 t)
Total weight	121 long tons 7 cwt (271,800 lb or 123.3 t)
Tender cap.	(after conversion to oil firing); 1,500 imp gal (6,800 L; 1,800 US gal) oil, 4,700 imp gal (21,000 L; 5,600 US gal) water
Firebox:
• Grate area	29 sq ft (2.7 m2)
Boiler pressure	185 psi (1,276 kPa)
Heating surface	2,040 sq ft (190 m2)
Cylinders	Two
Cylinder size	22 in × 26 in (559 mm × 660 mm)
Valve gear	Stephenson (125); Walschaerts (60)
Tractive effort
Performance figures
Tractive effort	27,480 lbf (122.24 kN) at 85% boiler pressure
First run
Career
First run	1907
Last run	1963

The A² class was an express passenger locomotive that ran on Victorian Railways from 1907 to 1963. A highly successful design entirely the work of Victorian Railways' own design office, its long service life was repeatedly extended as the Great Depression and later World War II delayed the introduction of more modern and powerful replacement locomotives.

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