WAGR Q class (1895)

Specifications
Specifications
Configuration:;
• Whyte	4-6-2T
Gauge	3 ft 6 in (1,067 mm)
Length	Q: 34 ft 1 in (10.39 m); Qa: 35 ft 2 in (10.72 m)
Loco weight	Q: 41 long tons 0 cwt (91,800 lb or 41.7 t); Qa: 52 long tons 0 cwt (116,500 lb or 52.8 t)
Fuel type	Coal
Fuel capacity	Q: 2.5 long tons 0 cwt (5,600 lb or 2.5 t); Qa: 3 long tons 0 cwt (6,700 lb or 3 t)
Water cap.	Q: 1,200 imp gal (5,500 L; 1,400 US gal); Qa: 1,600 imp gal (7,300 L; 1,900 US gal)
Firebox:
• Grate area	Q: 14 sq ft (1.3 m2); Qa: 17 sq ft (1.6 m2)
Boiler pressure	Q: 160 lbf/in2 (1.10 MPa); Qa: 175 lbf/in2 (1.21 MPa)

WAGR Q class
WAGR Q class
	Q139 with a train of new suburban carriages at Rocky Bay (North Fremantle), 1905
Power type
Type and origin
Power type	Steam
Builder	R&W Hawthorn Leslie & Co
Total produced	6
Rebuilder	Midland Railway Workshops
Rebuild date	1905, 1909
Number rebuilt	4 as Qa class
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-2T
Gauge	3 ft 6 in (1,067 mm)
Length	Q: 34 ft 1 in (10.39 m); Qa: 35 ft 2 in (10.72 m)
Loco weight	Q: 41 long tons 0 cwt (91,800 lb or 41.7 t); Qa: 52 long tons 0 cwt (116,500 lb or 52.8 t)
Fuel type	Coal
Fuel capacity	Q: 2.5 long tons 0 cwt (5,600 lb or 2.5 t); Qa: 3 long tons 0 cwt (6,700 lb or 3 t)
Water cap.	Q: 1,200 imp gal (5,500 L; 1,400 US gal); Qa: 1,600 imp gal (7,300 L; 1,900 US gal)
Firebox:
• Grate area	Q: 14 sq ft (1.3 m2); Qa: 17 sq ft (1.6 m2)
Boiler pressure	Q: 160 lbf/in2 (1.10 MPa); Qa: 175 lbf/in2 (1.21 MPa)
Tractive effort
Performance figures
Tractive effort	Q: 14,908 lbf (66.31 kN); Qa: 16,306 lbf (72.53 kN)
Factor of adh.	Q: 3.9, Qa: 4.3
Operators
Career
Operators	Western Australian Government Railways
Numbers	Q138-Q143
First run	19 August 1896
Withdrawn	31 March 1925
Disposition	All scrapped

The WAGR Q class was a six-member class of 4-6-2T tank engine steam locomotives operated by the Western Australian Government Railways (WAGR) between 1896 and 1925.