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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 Hartmann, BMAG |
|---|---|
| Built | 1904-1909 |
| Manufacturers | Hartmann, BMAG |
| Wheel arrangement | 2-6-6-0T (Mogul Mallet) |
| Gauge | 1,067 mm (Cape gauge) |
Dimensions and weights
| Property | Staatsspoorwegen classes 520 and 550 Hartmann, BMAG |
|---|---|
| Length | 12.70 m |
| Wheelbase | 9.40 m |
| Rigid wheelbase | 2.60 m |
| Empty weight | 45.6 t |
| Service weight | 58.8 t |
| Adhesive weight | 51.6 t |
| Axle load | 9 t |
| Water capacity | 6,000 l |
| Fuel capacity | 2 t (coal) |
Boiler
| Property | Staatsspoorwegen classes 520 and 550 Hartmann, BMAG |
|---|---|
| Grate area | 2.04 m² |
| Firebox surface | 10.4 m² |
| Tube heating surface | 125.8 m² |
| Evaporative heating surface | 136.2 m² |
| Total heating surface | 136.2 m² |
Power plant
| Property | Staatsspoorwegen classes 520 and 550 Hartmann, BMAG |
|---|---|
| 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 Hartmann, BMAG |
|---|---|
| Power source | steam |
| Estimated power | 500 kW (680 PS) |
| Starting effort | 76.2 kN |
| Starting effort simple | 91.4 kN |
Calculated values
| Property | Staatsspoorwegen classes 520 and 550 Hartmann, BMAG |
|---|---|
| Factor of adhesion | 1 : 6.65 |
| Optimal speed | 40 km/h |
| Power-to-weight ratio | 8.5 kW/t |
| Heating Surface Equivalent | 188.2 m² |
| Cylinder volume/HSE | 1 : 1,067.57 |
| Adhesive weight/Total | 1 : 1.14 |
| Tractive force/Heating surface | 1 : 11.68 |
| Grate area/Heating surface | 1 : 66.76 |
| Firebox/Tube surface | 1 : 12.10 |
