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Antofagasta-Bolivia No. 33 to 52
In 1927, the Antofagasta-Bolivia Railway in Chile received 20 powerful 2-8-4T locomotives from the North British Locomotive Company. These had become necessary because the conversion of the entire line to meter gauge ...
| Antofagasta-Bolivia No. 33 to 52Remove | |
|---|---|
| Variant | Standard |
| Built | 1927 |
| Manufacturers | North British |
| Wheel arrangement | 1D2 t |
| Gauge | 1000 mm |
| Length | |
| Service mass | 92054 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Antofagasta-Bolivia No. 33 to 52 Standard Remove |
|---|---|
| Built | 1927 |
| Manufacturers | North British |
| Wheel arrangement | 2-8-4T (Berkshire) |
| Gauge | 1,000 mm |
Dimensions and weights
| Property | Antofagasta-Bolivia No. 33 to 52 Standard Remove |
|---|---|
| Wheelbase | 9.45 m |
| Service mass | 92.1 t |
| Adhesion mass | 68.5 t |
| Rigid wheelbase | 3.58 m |
| Axle load | 15.2 t |
| Water capacity | 11,500 l |
| Fuel capacity | 6,719 l (oil) |
Boiler
| Property | Antofagasta-Bolivia No. 33 to 52 Standard Remove |
|---|---|
| Grate area | 2.75 m² |
| Firebox surface | 9.383 m² |
| Tube heating surface | 148.924 m² |
| Evaporative heating surface | 158.307 m² |
| Superheater surface | 34.467 m² |
| Total heating surface | 192.8 m² |
Power plant
| Property | Antofagasta-Bolivia No. 33 to 52 Standard Remove |
|---|---|
| Driver diameter | 1,118 mm |
| Boiler pressure | 12.4 bar |
| Expansion type | simple expansion |
| Cylinders | two, 483 x 610 mm |
Power
| Property | Antofagasta-Bolivia No. 33 to 52 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 783 kW (1,065 PS) |
| Starting effort | 134.0 kN |
Calculated values
| Property | Antofagasta-Bolivia No. 33 to 52 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 5.01 |
| Optimal speed | 35 km/h |
| Power-to-weight ratio | 8.5 kW/t |
| Heating Surface Equivalent | 274.2 m² |
| Cylinder volume/HSE | 1 : 813.47 |
| Adhesive weight/Total | 1 : 1.34 |
| Tractive force/Heating surface | 1 : 14.52 |
| Grate area/Heating surface | 1 : 70.10 |
| Firebox/Tube surface | 1 : 15.87 |
| Total/Superheater | 1 : 4.59 |
