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Buenos Aires Pacific No. 2101 to 2112
The numbers 2101 to 2112 were eleven three-cylinder Pacifics built by Armstrong Whitworth in 1926 for the Buenos Aires Pacific. The boiler had a relatively small superheater of only 460 square feet , what was normal f...
| Buenos Aires Pacific No. 2101 to 2112Remove | |
|---|---|
| Variant | Standard |
| Built | 1926 |
| Manufacturers | Armstrong Whitworth |
| Wheel arrangement | 2C1 |
| Gauge | 1676 mm |
| Length | 21488 mm |
| Service mass | 93222 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Buenos Aires Pacific No. 2101 to 2112 Standard Remove |
|---|---|
| Built | 1926 |
| Manufacturers | Armstrong Whitworth |
| Wheel arrangement | 4-6-2 (Pacific) |
| Gauge | 1,676 mm |
Dimensions and weights
| Property | Buenos Aires Pacific No. 2101 to 2112 Standard Remove |
|---|---|
| Length | 21.49 m |
| Wheelbase | 10.77 m |
| Total wheelbase | 18.64 m |
| Empty mass | 81.6 t |
| Service mass | 93.2 t |
| Adhesion mass | 55.7 t |
| Total mass | 161.7 t |
| Rigid wheelbase | 4.12 m |
| Axle load | 18.9 t |
| Water capacity | 26,596 l |
| Fuel capacity | 8.6 t (coal) |
Boiler
| Property | Buenos Aires Pacific No. 2101 to 2112 Standard Remove |
|---|---|
| Grate area | 3.925 m² |
| Firebox surface | 17.466 m² |
| Tube heating surface | 201.278 m² |
| Evaporative heating surface | 218.744 m² |
| Superheater surface | 42.735 m² |
| Total heating surface | 261.5 m² |
Power plant
| Property | Buenos Aires Pacific No. 2101 to 2112 Standard Remove |
|---|---|
| Driver diameter | 1,803 mm |
| Boiler pressure | 12.1 bar |
| Expansion type | simple expansion |
| Cylinders | three, 457 x 711 mm |
Power
| Property | Buenos Aires Pacific No. 2101 to 2112 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,119 kW (1,521 PS) |
| Starting effort | 126.8 kN |
Calculated values
| Property | Buenos Aires Pacific No. 2101 to 2112 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.31 |
| Optimal speed | 55 km/h |
| Power-to-weight ratio | 12.0 kW/t |
| Heating Surface Equivalent | 391.5 m² |
| Cylinder volume/HSE | 1 : 894.61 |
| Adhesive weight/Total | 1 : 1.68 |
| Tractive force/Heating surface | 1 : 10.13 |
| Grate area/Heating surface | 1 : 66.62 |
| Firebox/Tube surface | 1 : 11.52 |
| Total/Superheater | 1 : 5.12 |
