Pm701 at the Western Australian Rail Transport Museum
Type and origin
Power type
Steam
Builder
North British Locomotive Company
Serial number
26545-26569, 26921-26930
Build date
1949-1950
Total produced
35 (Pm: 19, Pmr: 16)
Specifications
Configuration:
• Whyte
4-6-2
Gauge
3 ft 6 in (1,067 mm)
Driver dia.
4 ft 6 in (1,372 mm)
Length
63 ft 7.4 in (19.39 m)
Width
8 ft 9.9 in (2.69 m)
Height
12 ft 6 in (3.81 m)
Total weight
109 long tons 0 cwt (244,200 lb or 110.7 t)
Tender type
4-axle
Fuel type
Coal
Water cap.
4,000 imp gal (18,000 L; 4,800 US gal)
Tender cap.
8 long tons 0 cwt (17,900 lb or 8.1 t)
Firebox:
• Grate area
35 sq ft (3.3 m2)
Boiler pressure
175 lbf/in2 (1.21 MPa)
Cylinder size
19 in × 26 in (483 mm × 660 mm)
Valve gear
Walschaerts
Performance figures
Tractive effort
25,855 lbf (115.01 kN)
Factor of adh.
3.6
Career
Operators
Western Australian Government Railways
Numbers
Pm701-Pm714, Pm716-Pm719, Pmr715, Pmr720-Pmr735
First run
4 January 1950
Withdrawn
1970-1972
Preserved
Pm701, Pm706, Pmr720, Pmr721, Pmr729, Pmr735
Disposition
6 preserved, 29 scrapped
The WAGR Pm and Pmr classes were two classes of 4-6-2 tender engine steam locomotives operated by the Western Australian Government Railways (WAGR) between 1950 and the early 1970s.
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