Data from "Goods Locomotive, Emu Bay Ry," The Locomotive Magazine, Vol VII (April 1902), p. 86; and D[ennis] Rock Carling, 4-8-0 Tender Locomotives (New York: Drake Publishers, Inc, 1972), p. 81 and serial 234 on table XIII [13], pp.108-109.
Carling commented that this trio of Twelve-Wheelers "had a distinctly Scottish aspect." It was only natural, he surmised, considering noted railway engineer David Jones of Glasgow consulted with the EBR. The line offered "sharp and continuous" curvature and a 2 1/2% ruling grade.
One of the three was put to the test in 1912 when responding to the North Mount Lyell mine disaster that took 42 lives in October 1912. Hooking up one coach, the engine left the port of Burnie laden with rescue equipment, headed to Zeehan on an 88-mile (142 km) over the EBR, then switched to the Tasmanian Government Railways to go about 44 miles (71 km) to Strahan, and 21 1/2 miles (35 km) to Queenstown. (The four miles of rack roads used rack locomotives.) Overall, the trip took 5 hours less than the usual scheduled timing.
These had long careers on the EBR.
The first to be withdrawn was number 7. No 6, named Murchison, and No 8, Heemskirk were withdrawn in 1966. Murchison wound up at the Zeehan Museum while Heemskirk went to work for the Don River Railway museum road.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 6 |
| Locobase ID | 10220 |
| Railroad | Emu Bay |
| Country | Australia |
| Whyte | 4-8-0 |
| Number in Class | 3 |
| Road Numbers | 6-8 |
| Gauge | 3'6" |
| Number Built | 3 |
| Builder | Dubs & Co |
| Year | 1900 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 12.50 / 3.81 |
| Engine Wheelbase (ft / m) | 22.04 / 6.72 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.57 |
| Overall Wheelbase (engine & tender) (ft / m) | 43.71 / 13.32 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 23,912 / 10,846 |
| Weight on Drivers (lbs / kg) | 84,112 / 38,153 |
| Engine Weight (lbs / kg) | 106,512 / 48,313 |
| Tender Loaded Weight (lbs / kg) | 55,270 / 25,070 |
| Total Engine and Tender Weight (lbs / kg) | 161,782 / 73,383 |
| Tender Water Capacity (gals / ML) | 2400 / 9.09 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.85 / 3.50 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 35 / 17.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 45 / 1143 |
| Boiler Pressure (psi / kPa) | 150 / 1030 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17.5" x 22" / 445x559 |
| Tractive Effort (lbs / kg) | 19,090 / 8659.09 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.41 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 112.75 / 10.47 |
| Grate Area (sq ft / m2) | 16 / 1.49 |
| Evaporative Heating Surface (sq ft / m2) | 1185 / 110.09 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1185 / 110.09 |
| Evaporative Heating Surface/Cylinder Volume | 193.48 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2400 |
| Same as above plus superheater percentage | 2400 |
| Same as above but substitute firebox area for grate area | 16,913 |
| Power L1 | 3212 |
| Power MT | 336.75 |