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Northern Pacific class S-10
These 20 Ten-Wheelers were built by ALCO-Rogers for the Chicago Southern Railroad between 1905 and 1907. When this company went bankrupt, 14 locomotives had not yet been delivered. Ten of these were purchased by North...
General
| Property | Northern Pacific class S-10Remove |
|---|---|
| Built | 1905-1907 |
| Manufacturers | ALCO |
| Wheel arrangement | 4-6-0 (Ten-wheeler) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Northern Pacific class S-10Remove |
|---|---|
| Length | 17.83 m |
| Wheelbase | 8.87 m |
| Rigid wheelbase | 3.66 m |
| Total wheelbase | 15.20 m |
| Service weight | 69.4 t |
| Adhesive weight | 52.2 t |
| Axle load | 17.4 t |
| Total weight | 116.6 t |
| Water capacity | 18,927 l |
| Fuel capacity | 7.3 t (coal) |
Boiler
| Property | Northern Pacific class S-10Remove |
|---|---|
| Grate area | 3.577 m² |
| Firebox surface | 13.471 m² |
| Tube heating surface | 186.735 m² |
| Evaporative heating surface | 200.206 m² |
| Total heating surface | 200.2 m² |
Power plant
| Property | Northern Pacific class S-10Remove |
|---|---|
| Driver diameter | 1,448 mm |
| Boiler pressure | 13.1 bar |
| Expansion type | simple expansion |
| Cylinders | two, 483 x 660 mm |
Power
| Property | Northern Pacific class S-10Remove |
|---|---|
| Power source | steam |
| Estimated power | 783 kW (1,065 PS) |
| Starting effort | 118.3 kN |
Calculated values
| Property | Northern Pacific class S-10Remove |
|---|---|
| Factor of adhesion | 1 : 4.33 |
| Optimal speed | 40 km/h |
| Power-to-weight ratio | 11.3 kW/t |
| Heating Surface Equivalent | 267.6 m² |
| Cylinder volume/HSE | 1 : 902.98 |
| Adhesive weight/Total | 1 : 1.33 |
| Tractive force/Heating surface | 1 : 12.34 |
| Grate area/Heating surface | 1 : 55.97 |
| Firebox/Tube surface | 1 : 13.86 |
