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South Australian class 520
The west-east link in South Australia featured long flat stretches with few curves, as well as a 19-mile stretch with a 2.2 percent grade. For the increased train weights during the Second World War, powerful locomoti...
General
| Property | South Australian class 520Remove |
|---|---|
| Built | 1943-1947 |
| Manufacturers | Islington |
| Wheel arrangement | 4-8-4 (Northern) |
| Gauge | 1,600 mm (Irish broad gauge) |
Dimensions and weights
| Property | South Australian class 520Remove |
|---|---|
| Length | 26.63 m |
| Wheelbase | 12.52 m |
| Rigid wheelbase | 5.41 m |
| Total wheelbase | 23.57 m |
| Service weight | 113.2 t |
| Adhesive weight | 63.5 t |
| Axle load | 16.1 t |
| Total weight | 203.9 t |
| Water capacity | 40,882 l |
| Fuel capacity | 10 t (coal) |
Boiler
| Property | South Australian class 520Remove |
|---|---|
| Grate area | 4.181 m² |
| Firebox surface | 27.035 m² |
| Tube heating surface | 200.949 m² |
| Evaporative heating surface | 227.984 m² |
| Superheater surface | 60.48 m² |
| Total heating surface | 288.5 m² |
Power plant
| Property | South Australian class 520Remove |
|---|---|
| Driver diameter | 1,676 mm |
| Boiler pressure | 14.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 521 x 711 mm |
Power
| Property | South Australian class 520Remove |
|---|---|
| Power source | steam |
| Indicated power | 1,939 kW (2,636 PS) |
| Starting effort | 144.9 kN |
Calculated values
| Property | South Australian class 520Remove |
|---|---|
| Factor of adhesion | 1 : 4.30 |
| Optimal speed | 82 km/h |
| Power-to-weight ratio | 17.1 kW/t |
| Heating Surface Equivalent | 484.1 m² |
| Cylinder volume/HSE | 1 : 625.65 |
| Adhesive weight/Total | 1 : 1.78 |
| Tractive force/Heating surface | 1 : 10.49 |
| Grate area/Heating surface | 1 : 68.99 |
| Firebox/Tube surface | 1 : 7.43 |
| Total/Superheater | 1 : 3.77 |
