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Chilean State Railway grupo 20
In 1897, W.R. Grace ordered four metre-gauge Consolidations from Rogers for the Chilean State Railways to be used on the Red Norte. They were originally numbered 19 to 22 and were followed by numbers 33 to 38 in 1900....
| Chilean State Railway grupo 20Remove | |
|---|---|
| Variant | Standard |
| Built | 1897, 1900 |
| Manufacturers | Rogers |
| Wheel arrangement | 1D |
| Gauge | 1000 mm |
| Length | |
| Service mass | 33566 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Chilean State Railway grupo 20 Standard Remove |
|---|---|
| Built | 1897, 1900 |
| Manufacturers | Rogers |
| Wheel arrangement | 2-8-0 (Consolidation) |
| Gauge | 1,000 mm |
Dimensions and weights
| Property | Chilean State Railway grupo 20 Standard Remove |
|---|---|
| Wheelbase | 5.51 m |
| Service mass | 33.6 t |
| Adhesion mass | 30.8 t |
| Rigid wheelbase | 3.71 m |
| Axle load | 7.7 t |
| Water capacity | 5,678 l |
Boiler
| Property | Chilean State Railway grupo 20 Standard Remove |
|---|---|
| Grate area | 1.171 m² |
| Firebox surface | 6.981 m² |
| Tube heating surface | 79.884 m² |
| Evaporative heating surface | 86.864 m² |
| Total heating surface | 86.9 m² |
Power plant
| Property | Chilean State Railway grupo 20 Standard Remove |
|---|---|
| Driver diameter | 991 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 406 x 457 mm |
Power
| Property | Chilean State Railway grupo 20 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 261 kW (355 PS) |
| Starting effort | 89.3 kN |
Calculated values
| Property | Chilean State Railway grupo 20 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 3.39 |
| Optimal speed | 18 km/h |
| Power-to-weight ratio | 7.8 kW/t |
| Heating Surface Equivalent | 121.8 m² |
| Cylinder volume/HSE | 1 : 974.08 |
| Adhesive weight/Total | 1 : 1.09 |
| Tractive force/Heating surface | 1 : 21.48 |
| Grate area/Heating surface | 1 : 74.18 |
| Firebox/Tube surface | 1 : 11.44 |
