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Western Australian Government Railways class W

W934 in April 2012 at Woolshed Flat

The class W was created after the Second World War as a Mountain with a low axle load , which was mainly intended to pull freight trains and, if necessary, passenger trains. The original design of the WAGR was fundame...

Western Australian Government Railways class WRemove
Variant Standard
Built 1951-1952
Manufacturers Beyer, Peacock & Co.
Wheel arrangement 2D1
Gauge 1067 mm
Length
Service mass
Top speed
Power
Engine

General

Property Western Australian Government Railways class W
Standard
Remove
Built 1951-1952
Manufacturers Beyer, Peacock & Co.
Wheel arrangement 4-8-2 (Mountain)
Gauge 1,067 mm

Dimensions and weights

Property Western Australian Government Railways class W
Standard
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Wheelbase 9.60 m
Adhesion mass 39.5 t
Total mass 99.1 t
Rigid wheelbase 4.08 m
Axle load 10 t
Water capacity 13,639 l
Fuel capacity 5.1 t (coal)

Boiler

Property Western Australian Government Railways class W
Standard
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Grate area 2.508 m²
Firebox surface 17.373 m²
Tube heating surface 86.4 m²
Evaporative heating surface 103.773 m²
Superheater surface 28.335 m²
Total heating surface 132.1 m²

Power plant

Property Western Australian Government Railways class W
Standard
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Driver diameter 1,219 mm
Boiler pressure 13.8 bar
Expansion type simple expansion
Cylinders two, 406 x 610 mm

Power

Property Western Australian Government Railways class W
Standard
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Power source steam
Estimated power 1,044 kW (1,419 PS)
Starting effort 96.8 kN

Calculated values

Property Western Australian Government Railways class W
Standard
Remove
Factor of adhesion 1 : 4.00
Optimal speed 66 km/h
Power-to-weight ratio 10.5 kW/t
Heating Surface Equivalent 247.3 m²
Cylinder volume/HSE 1 : 639.49
Tractive force/Heating surface 1 : 15.30
Grate area/Heating surface 1 : 52.67
Firebox/Tube surface 1 : 4.97
Total/Superheater 1 : 3.66
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