Data from Mike Quirk, [], last accessed 10 May 2008.
When the Queensland Land & Coal Company began building a private colliery railway to Torbanlea, they ordered 2 radial tanks from the Glasgow builder (works #2826-2827). But the QLCC quickly found the line too expensive to build . So they sold the locomotives and some rolling stock to the QR, which built its own siding to the mines.
Quirk notes that the powerful tanks proved unsteady at any kind of speed and although their counterbalances were later amended, the QR used them for switching work. Even with the shortcomings and an 1898 boiler explosion suffered by 72, the two engines carried on until 1926.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | F / 6D13 |
Locobase ID | 9438 |
Railroad | Queensland Government Rlys |
Country | Australia |
Whyte | 0-6-2T |
Number in Class | 2 |
Road Numbers | 70-71 |
Gauge | 3'6" |
Number Built | 2 |
Builder | Neilson & Co |
Year | 1882 |
Valve Gear | Walschaert |
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) | 42,560 / 19,305 |
Engine Weight (lbs / kg) | 56,448 / 25,604 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 720 / 2.73 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.40 / 1 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 24 / 12 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 36 / 914 |
Boiler Pressure (psi / kPa) | 120 / 830 |
High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 18" / 330x457 |
Tractive Effort (lbs / kg) | 8619 / 3909.52 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.94 |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | 53 / 4.93 |
Grate Area (sq ft / m2) | 10 / 0.93 |
Evaporative Heating Surface (sq ft / m2) | 592 / 55.02 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 592 / 55.02 |
Evaporative Heating Surface/Cylinder Volume | 214.09 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 1200 |
Same as above plus superheater percentage | 1200 |
Same as above but substitute firebox area for grate area | 6360 |
Power L1 | 2231 |
Power MT | 346.70 |