WAGR Dd class

WAGR Dd class
WAGR Dd class
	Dd592 passes through Jandakot with an ARHS excursion train, 1986
Power type
Type and origin
Power type	Steam
Builder	Midland Railway Workshops
Build date	1946
Total produced	10
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-4T
Gauge	3 ft 6 in (1,067 mm)
Driver dia.	4 ft 6 in (1,372 mm)
Length	43 ft 3 in (13.18 m)
Loco weight	72 long tons 0 cwt (161,300 lb or 73.2 t)
Fuel type	Coal
Water cap.	1,820 imp gal (8,300 L; 2,190 US gal)
Firebox:
• Grate area	18.6 sq ft (1.73 m2)
Boiler pressure	160 lbf/in2 (1.10 MPa)
Cylinder size	18 in × 23 in (457 mm × 584 mm)
Valve gear	Walschaerts
Tractive effort
Performance figures
Tractive effort	18,768 lbf (83.48 kN)
Factor of adh.	4.7
Operators
Career
Operators	Western Australian Government Railways
Numbers	Dd591-Dd600
Nicknames	Donald Ducks
Preserved	Dd592, Dd596
Disposition	2 preserved, 8 scrapped

The WAGR Dd class was a class of 4-6-4T tank locomotive operated by the Western Australian Government Railways (WAGR) between 1946 and 1972.

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