Data from Douglas Colquhoun's entries presented in the Australian national railway museum site: [] (visited 22 July 2005).
Unusual quartet of saddle-tanks in several respects. First of all, they were supplied by Vulcan (works #2532-2533, 2539-2540) to contractors building the RAN's Henderson Naval Base in Western Australia.
Nine years later, the Commonwealth Railways bought the earlier two (2532-2533) to operate on the narrow-gauge Central Australian Railway. 29's withdrawal in October 1946 was followed by years in mothballs until it was scrapped in July 1958.
30 soldiered on a few years longer, going into mothballs in April 1950. Seven years later, however, the locomotive was converted to a diesel-hydraulic, which must be so unusual a modification as to be perhaps one of a kind.
In August 2006, Graeme Reid of Australia sent Locobase some photos of #4, a saddle-tanker with the builder's number of 2539. Locobase believes the engine must be similar or identical to the two described above and in fact the site says it too was used in the construction of the Henderson Naval Base. This is confirmed by [], which relates all four locomotives' later history.
The Bellarine Peninsula Railway website -- [], accessed 21 August 2006 -- shows 2 (or 3) in this grouping as they also have #5 (VIW 2540) and they seem to be unsure if #4 is 2539 or 2541 (a builder's-plate switch?). #5 also served the construction crew. Then both were sold to Australian Portland Cement in 1926 to work at the Fyansford Cement Works. It was from the latter that the two came to this museum railway.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | NB |
Locobase ID | 6690 |
Railroad | Commonwealth Railways |
Country | Australia |
Whyte | 0-6-0ST |
Number in Class | 4 |
Road Numbers | 29-30 |
Gauge | 3'6" |
Number Built | 4 |
Builder | Vulcan Iron Works |
Year | 1916 |
Valve Gear | Stephenson |
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) | 65,408 / 29,669 |
Engine Weight (lbs / kg) | 65,408 / 29,669 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 1320 / 5 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.70 / 1 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 36 / 18 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 36 / 914 |
Boiler Pressure (psi / kPa) | 140 / 970 |
High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 18" / 330x457 |
Tractive Effort (lbs / kg) | 10,056 / 4561.33 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 6.50 |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | 50 / 4.65 |
Grate Area (sq ft / m2) | 14 / 1.30 |
Evaporative Heating Surface (sq ft / m2) | 598 / 55.58 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 598 / 55.58 |
Evaporative Heating Surface/Cylinder Volume | 216.25 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 1960 |
Same as above plus superheater percentage | 1960 |
Same as above but substitute firebox area for grate area | 7000 |
Power L1 | 2576 |
Power MT | 260.48 |