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 Middle Run Media | |
|---|---|
| Class | see comments |
| Locobase ID | 20452 |
| Railroad | Powelltown & Yarra Jct Light Railway |
| Country | Australia |
| Whyte | 0-4-2T |
| Number in Class | 1 |
| Road Numbers | 3 |
| Gauge | 3' |
| Number Built | 1 |
| Builder | Andrew Barclay |
| Year | 1914 |
| Valve Gear | Joy |
| 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) | |
| 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 / 900 |
| 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 | |