South Maitland Railway 2-8-2 Locomotives in Australia
Class Details by Steve Llanso of Sweat House Media
Class 10 (Locobase 7569)
Data from 1946 Beyer, Peacock catalogue hosted on Martyn Bane's website at [
] (accessed 21 May 2006).
Batch #02253-022554 (works#6125-6127) (Production data from The Beyer, Peacock production list -- [], last accessed 29 May 2006).
These tanks were put to work on the coal trains running from the many collieries in the Maitland, New South Wales area. Fourteen 2-8-2Ts were supplied to Heatley & Company (the owners) from 1912 to 1925; the specs in the BP catalogue are likely representative of all 14. Like many BP engines, they all sported the Belpaire firebox
According to the Friends of the SMR Railways site -- [], accessed 14 June 2006 -- these "double-enders" could operated equally as fast in either direction and "were designed especially for the short Coalfields runs." Also see the [] (accessed 14 June 2006) for heaps of information on the entire complex of collieries owned by the South Maitland Railway.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 10 |
| Locobase ID | 7569 |
| Railroad | South Maitland Railway |
| Country | Australia |
| Whyte | 2-8-2T |
| Number in Class | 2 |
| Road Numbers | 23-25 |
| Gauge | Std |
| Number Built | 2 |
| Builder | Beyer, Peacock |
| Year | 1922 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 15 / 4.57 |
| Engine Wheelbase (ft / m) | 31.33 / 9.55 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.48 |
| Overall Wheelbase (engine & tender) (ft / m) | 31.33 / 9.55 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 34,744 / 15,760 |
| Weight on Drivers (lbs / kg) | 138,320 / 62,741 |
| Engine Weight (lbs / kg) | 187,040 / 84,840 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 2882 / 10.92 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 4.50 / 4 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 58 / 29 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 51 / 1295 |
| Boiler Pressure (psi / kPa) | 184.20 / 1270 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 26" / 508x660 |
| Tractive Effort (lbs / kg) | 31,928 / 14482.31 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.33 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 153 / 14.22 |
| Grate Area (sq ft / m2) | 28.70 / 2.67 |
| Evaporative Heating Surface (sq ft / m2) | 1838 / 170.82 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1838 / 170.82 |
| Evaporative Heating Surface/Cylinder Volume | 194.42 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5287 |
| Same as above plus superheater percentage | 5287 |
| Same as above but substitute firebox area for grate area | 28,183 |
| Power L1 | 4311 |
| Power MT | 274.84 |