Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 21, p. 275. Works number 16313 in November 1898.
The specs for this tank noted it would have to tackle "very steep grades". In addition to a saddle tank that carried 1,000 gallons, the Swan also trailed a tender containing another 1,800 gallons.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Swan |
| Locobase ID | 12300 |
| Railroad | Millars, Karri & Jarra Forests Railway |
| Country | Australia |
| Whyte | 2-4-2T |
| Number in Class | 1 |
| Road Numbers | |
| Gauge | 3'6" |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1898 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5.67 / 1.73 |
| Engine Wheelbase (ft / m) | 21 / 6.40 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.27 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 44,000 / 19,958 |
| Engine Weight (lbs / kg) | 66,000 / 29,937 |
| Tender Loaded Weight (lbs / kg) | 29,000 / 13,154 |
| Total Engine and Tender Weight (lbs / kg) | 95,000 / 43,091 |
| Tender Water Capacity (gals / ML) | 2800 / 6.82 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 37 / 18.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 37 / 940 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 16" / 356x406 |
| Tractive Effort (lbs / kg) | 11,527 / 5228.57 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.82 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 114 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9.25 / 2.82 |
| Firebox Area (sq ft / m2) | 75.80 / 7.04 |
| Grate Area (sq ft / m2) | 10.90 / 1.01 |
| Evaporative Heating Surface (sq ft / m2) | 548 / 50.93 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 548 / 50.93 |
| Evaporative Heating Surface/Cylinder Volume | 192.23 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1744 |
| Same as above plus superheater percentage | 1744 |
| Same as above but substitute firebox area for grate area | 12,128 |
| Power L1 | 3208 |
| Power MT | 321.47 |