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Buenos Aires Pacific Tipo 20
The Tipo 20 comprised 14 Atlantic locomotives built by North British in 1905 and numbered 600 to 613. Although their bulky, compact appearance suggested otherwise, they were in fact relatively large locomotives, weigh...
| Buenos Aires Pacific Tipo 20Remove | |
|---|---|
| Variant | Standard |
| Built | 1905 |
| Manufacturers | North British |
| Wheel arrangement | 2B1 |
| Gauge | 1676 mm |
| Length | |
| Service mass | 76102 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Buenos Aires Pacific Tipo 20 Standard Remove |
|---|---|
| Built | 1905 |
| Manufacturers | North British |
| Wheel arrangement | 4-4-2 (Atlantic) |
| Gauge | 1,676 mm |
Dimensions and weights
| Property | Buenos Aires Pacific Tipo 20 Standard Remove |
|---|---|
| Wheelbase | 8.20 m |
| Service mass | 76.1 t |
| Adhesion mass | 39 t |
| Total mass | 122.8 t |
| Rigid wheelbase | 15.86 m |
| Water capacity | 18,639 l |
| Fuel capacity | 6.1 t (coal) |
Boiler
| Property | Buenos Aires Pacific Tipo 20 Standard Remove |
|---|---|
| Grate area | 2.787 m² |
| Firebox surface | 15.794 m² |
| Tube heating surface | 185.249 m² |
| Evaporative heating surface | 201.042 m² |
| Total heating surface | 201.0 m² |
Power plant
| Property | Buenos Aires Pacific Tipo 20 Standard Remove |
|---|---|
| Driver diameter | 2,045 mm |
| Boiler pressure | 12.1 bar |
| Expansion type | simple expansion |
| Cylinders | two, 495 x 660 mm |
Power
| Property | Buenos Aires Pacific Tipo 20 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 746 kW (1,014 PS) |
| Starting effort | 81.3 kN |
Calculated values
| Property | Buenos Aires Pacific Tipo 20 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.70 |
| Optimal speed | 56 km/h |
| Power-to-weight ratio | 9.8 kW/t |
| Heating Surface Equivalent | 280.0 m² |
| Cylinder volume/HSE | 1 : 908.84 |
| Adhesive weight/Total | 1 : 1.95 |
| Tractive force/Heating surface | 1 : 8.44 |
| Grate area/Heating surface | 1 : 72.14 |
| Firebox/Tube surface | 1 : 11.73 |
