Silverton Tramway Co.
Steam locomotives

`Y' Class

Introduced: 1888
Builder: Beyer Pecock & Co., Manchester, England
Purpose: Goods Traffic
Number of engines in class: 21
Number series: 1 to 17 (Nos 3-6 used twice)
Wheel arrangement: 2-6-0
Length: 39 ft. 3 ins.
Weight:	Engine: 26 tons 2 cwt. (original) 28 tons 14 cwt (as rebuilt)
	Tender: 19 tons 0 cwt.
	Total: 45 tons 2 cwt. (original) 47 tons 14 cwt. (as rebuilt).
Driving wheel diameter: 3 ft. 3 ins.
Maximum axle load: 8 tons 6 cwt.
Cylinders (2) 14.5 in. dia x 20 in. stroke
Boiler pressure 145 psi (original) 180 psi (as rebuilt)
Tractive effort: 13,289 lbs. (original) 16,500 (as rebuilt)
Grate area 13.6 sq. ft.
Heating surface:	Tubes: 708 sq. ft.
		Fire box: 67.4 sq. ft.
Water capacity: 1600 gallons 
Coal capacity: 2 tons 10 cwt.
Maximum Permissible Speed: 35 m.p.h.
Preserved Locomotive: 
 Y1    Sulphide Street Railway Museum, Broken Hill, NSW. Static exhibit
 Y12   Port Dock Railway Museum, Adelaide, SA. Static exhibit


`A' Class

Introduced: 1912
Builder: Beyer Pecock & Co., Manchester, England
Purpose: Mixed Traffic
Number of engines in class: 4 
Number series: 18 to 21
Wheel arrangement: 4-6-0
Length: 44 ft. 6 ins.
Weight:	Engine: 38 tons 12 cwt.
	Tender: 20 tons 10 cwt.
	Total: 59 tons 2 cwt.
Driving wheel diameter: 4 ft. 3 ins.
Maximum axle load: 10 tons 0 cwt.
Cylinders (2): 16.5 in. dia x 20 in. stroke
Boiler pressure: 185 psi
Tractive effort: 17,381 lbs. (original) 18, 467 (as rebuilt)
Grate area 17 sq. ft.
Heating surface:	Tubes: 720.4 sq. ft.  
		Superheater: 148.2 sq. ft).
		Fire box: 99 sq. ft.
Water capacity: 2000 gallons 
Coal capacity: 3 tons 
Maximum Permissible Speed: 35 m.p.h.
Preserved Locomotive: 
 A21   Port Dock Railway Museum, Adelaide, SA. Static exhibit


`W' Class

Introduced: 1951
Builder: Beyer Pecock & Co., Manchester, England
Purpose: Mixed Traffic
Number of engines in class: 4 
Number series: 22 to 25
Wheel arrangement: 4-8-2
Gauge: Narrow
Length: 61 ft. 11 ins.
Weight:	Engine: 63 tons 10 cwt.
	Tender: 34 tons 0 cwt.
	Total: 97 tons 10 cwt.
Driving wheel diameter: 4 ft. 0 ins.
Maximum axle load: 9 tons 10 cwt.
Cylinders (2): 16 in. dia x 24 in. stroke
Boiler pressure 200 psi
Tractive effort: 21,760 lbs. (original) 18, 467 (as rebuilt)
Grate area 21 sq. ft.
Heating surface:	Tubes: 930 sq. ft.  
		Superheater: 305 sq. ft).
		Fire box: 187 sq. ft.
Water capacity: 3100 gallons 
Coal capacity: 5 tons 
Maximum Permissible Speed: 35 m.p.h.
Preserved Locomotives: 
 W22   Pichi Richi Railway, Quorn, SA. Under restoration.
 W24   Sulphide Street Railway Museum, Broken Hill, NSW. Static exhibit
 W25   Port Dock Railway Museum, Adelaide, SA. Static exhibit