Powelltown & Yarra Jct Light Railway 0-4-2 Locomotives in Australia


Class Details by Steve Llanso of Sweat House Media

Class see comments (Locobase 20452)

Data from "The Powelltown & Yarra Junction Light Railway", Locomotive Magazine, Volume XXI [21] (15 December 2015), pp. 284-285. See also Frank Stamford, "Steam locomotives on Victorian timber tramways - Part 3", Light Railways, No 2 (December 2009), pp. 3-6. (AndLocobase 20450 for more sources and detailed description of the railway.) Works number was 311 in 1888.

The LM report said that this saddle tank was used "solely for the carriage of logs to the mill on the 3 1/2 miles into the bush." A measure of its size is a boiler "about as big as a coffee-urn", which was dwarfed by the vase-shaped spark-arresting stack.

The 3 went by several names; those that were printable, said LM, were "Dreadnought", "Squirt", and "Midget". Given that the first of these usually described the most powerful battleships in the navy, the irony is apparent.

"Despite its small size," wrote Frank Stamford in 2009, "the locomotive was capable of hauling empty log bogies uphill to the logging area, and the logs were then gravitated back to Powelltown."

The elderly Squirt ended its service in 1930 and was scrapped.

Principal Dimensions by Steve Llanso of Sweat House Media

Class see comments
Locobase ID20452
RailroadPowelltown & Yarra Jct Light Railway
CountryAustralia
Whyte0-4-2T
Number in Class1
Road Numbers3
Gauge3'
Number Built1
BuilderAndrew Barclay
Year1914
Valve GearJoy
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)8 / 2.44
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)8 / 2.44
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)8960 / 4064
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)8960 / 4064
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)24 / 610
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)5" x 12" / 127x305
Tractive Effort (lbs / kg)1381 / 626.41
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)
Grate Area (sq ft / m2)
Evaporative Heating Surface (sq ft / m2)
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)
Evaporative Heating Surface/Cylinder Volume
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation
Same as above plus superheater percentage
Same as above but substitute firebox area for grate area
Power L1
Power MT

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