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Dunderland Iron Ore Company No. A3 and A4
Four tank locomotives were ordered for the opening of the Dunderlandsbane by the British mining company DIOC, of which the two larger ones came from Kerr, Stuart & Co. They had the wheel arrangement 2-6-2T and were ad...
| Dunderland Iron Ore Company No. A3 and A4Remove | |
|---|---|
| Variant | Standard |
| Built | 1902 |
| Manufacturers | Kerr, Stuart & Co. |
| Wheel arrangement | 1C1 t |
| Gauge | 1435 mm |
| Length | 10050 mm |
| Service mass | 50000 kg |
| Top speed | 40 km/h |
| Power | |
| Engine |
General
| Property | Dunderland Iron Ore Company No. A3 and A4 Standard Remove |
|---|---|
| Built | 1902 |
| Manufacturers | Kerr, Stuart & Co. |
| Wheel arrangement | 2-6-2T (Prairie) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Dunderland Iron Ore Company No. A3 and A4 Standard Remove |
|---|---|
| Length | 10.05 m |
| Wheelbase | 6.71 m |
| Empty mass | 35.5 t |
| Service mass | 50 t |
| Adhesion mass | 39 t |
| Axle load | 13 t |
| Water capacity | 7,412 l |
Boiler
| Property | Dunderland Iron Ore Company No. A3 and A4 Standard Remove |
|---|---|
| Grate area | 1.44 m² |
| Evaporative heating surface | 79.293 m² |
| Total heating surface | 79.3 m² |
Power plant
| Property | Dunderland Iron Ore Company No. A3 and A4 Standard Remove |
|---|---|
| Driver diameter | 991 mm |
| Boiler pressure | 11 bar |
| Expansion type | simple expansion |
| Cylinders | two, 406 x 508 mm |
Power
| Property | Dunderland Iron Ore Company No. A3 and A4 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 242 kW (329 PS) |
| Top speed | 40 km/h |
| Starting effort | 79.4 kN |
Calculated values
| Property | Dunderland Iron Ore Company No. A3 and A4 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.82 |
| Optimal speed | 19 km/h |
| Power-to-weight ratio | 4.8 kW/t |
| Adhesive weight/Total | 1 : 1.28 |
| Tractive force/Heating surface | 1 : 20.92 |
| Grate area/Heating surface | 1 : 55.06 |
