Western Australia 2-6-0 Locomotives in Australia


Class Details by Steve Llanso of Sweat House Media

Class A (Locobase 9560)

Data from Howell, Comparative Statistics of the Australasian Railways, Journal of the Royal Statistical Society, March 1899, pp. 96-97. Builders were Beyer, Peacock and Dubs & Co.

These were the first class on the WAGR to be built in significant numbers, but they soon proved too small and light for mainline traffic. When the G class were introduced in the mid-1890s, the As were moved to branch-line service. In that role, most of the locomotives operated well into the post-World War II era.


Class G (Locobase 9562)

Data from Howell, Comparative Statistics of the Australasian Railways, Journal of the Royal Statistical Society, March 1899, pp. 96-97. Builders were Beyer, Peacock (7 built), Neilson & Co (12 built), and J Martin & Co (29 built).

[], last accessed 6 September 2008, says that these were part of a "Australian Standard" and were widely used. But, "The G class seems to have satisfied the early need for a mainline general purpose locomotive, although they had a tendency to leave the track when running at high speed." Thus the design was modified to take a leading bogie in place of the Bissel truck; see Locobase 9563.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassAG
Locobase ID9560 9562
RailroadWestern AustraliaWestern Australia
CountryAustraliaAustralia
Whyte2-6-02-6-0
Number in Class1447
Road Numbers
Gauge3'6"3'6"
Number Built1447
Builderseveralseveral
Year18851894
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)43,904 / 19,91556,448 / 25,604
Tender Loaded Weight (lbs / kg)24,080 / 10,92337,586 / 17,049
Total Engine and Tender Weight (lbs / kg)67,984 / 30,83894,034 / 42,653
Tender Water Capacity (gals / ML)1000 / 3.791440 / 5.45
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.70 / 2 2.20 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)39 / 99139 / 991
Boiler Pressure (psi / kPa)130 / 9140 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)12" x 20" / 305x50814.5" x 20" / 368x508
Tractive Effort (lbs / kg)8160 / 3701.3212,831 / 5820.05
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)54 / 5.0272 / 6.69
Grate Area (sq ft / m2) 9.70 / 0.9014.60 / 1.36
Evaporative Heating Surface (sq ft / m2)550 / 51.12780 / 72.49
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)550 / 51.12780 / 72.49
Evaporative Heating Surface/Cylinder Volume210.08204.06
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation12612044
Same as above plus superheater percentage12612044
Same as above but substitute firebox area for grate area702010,080
Power L126472714
Power MT

All material Copyright © SteamLocomotive.com
Wes Barris