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Staatsspoorwegen classes 520 and 550
The class later known as CC10 consisted of 33 Mallet tank locomotives with a 2-6-6-0T wheel arrangement. They were ordered when the 0-4-4-2T class BB10 needed a more powerful successor in mixed traffic on the hilly an...
General
| Property | Staatsspoorwegen classes 520 and 550 Werkspoor |
|---|---|
| Built | 1910 |
| Manufacturers | Werkspoor |
| Wheel arrangement | 2-6-6-0T (Mogul Mallet) |
| Gauge | 1,067 mm (Cape gauge) |
Dimensions and weights
| Property | Staatsspoorwegen classes 520 and 550 Werkspoor |
|---|---|
| Length | 12.70 m |
| Wheelbase | 9.40 m |
| Rigid wheelbase | 2.60 m |
| Empty weight | 49.7 t |
| Service weight | 63.1 t |
| Adhesive weight | 55.6 t |
| Axle load | 9.4 t |
| Water capacity | 6,000 l |
| Fuel capacity | 2 t (coal) |
Boiler
| Property | Staatsspoorwegen classes 520 and 550 Werkspoor |
|---|---|
| Grate area | 2.04 m² |
| Firebox surface | 11.1 m² |
| Tube heating surface | 128.4 m² |
| Evaporative heating surface | 139.5 m² |
| Total heating surface | 139.5 m² |
Power plant
| Property | Staatsspoorwegen classes 520 and 550 Werkspoor |
|---|---|
| Driver diameter | 1,106 mm |
| Boiler pressure | 12 bar |
| Expansion type | compound |
| Cylinders | four, HP: 340 x 510 mm and LP: 520 x 510 mm |
Power
| Property | Staatsspoorwegen classes 520 and 550 Werkspoor |
|---|---|
| Power source | steam |
| Estimated power | 550 kW (748 PS) |
| Starting effort | 76.2 kN |
| Starting effort simple | 91.4 kN |
Calculated values
| Property | Staatsspoorwegen classes 520 and 550 Werkspoor |
|---|---|
| Factor of adhesion | 1 : 7.16 |
| Optimal speed | 43 km/h |
| Power-to-weight ratio | 8.7 kW/t |
| Heating Surface Equivalent | 195.0 m² |
| Cylinder volume/HSE | 1 : 1,030.35 |
| Adhesive weight/Total | 1 : 1.13 |
| Tractive force/Heating surface | 1 : 11.40 |
| Grate area/Heating surface | 1 : 68.38 |
| Firebox/Tube surface | 1 : 11.57 |
