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Alsace-Lorraine S 12
In order to obtain a more powerful express locomotive than those with the 4-6-0 wheel arrangement, the Reichseisenbahnen in Alsace-Lorraine had some of the first Pacifics built in Europe in 1908. However, in order to ...
| Alsace-Lorraine S 12Remove | |
|---|---|
| Variant | Standard |
| Built | 1908 |
| Manufacturers | Grafenstaden |
| Wheel arrangement | 2C1 |
| Gauge | 1435 mm |
| Length | 21500 mm |
| Service mass | 82600 kg |
| Top speed | 100 km/h |
| Power | |
| Engine |
General
| Property | Alsace-Lorraine S 12 Standard Remove |
|---|---|
| Built | 1908 |
| Manufacturers | Grafenstaden |
| Wheel arrangement | 4-6-2 (Pacific) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Alsace-Lorraine S 12 Standard Remove |
|---|---|
| Length | 21.50 m |
| Wheelbase | 10.35 m |
| Empty mass | 75.5 t |
| Service mass | 82.6 t |
| Adhesion mass | 48 t |
| Total mass | 130.9 t |
| Rigid wheelbase | 4.30 m |
| Axle load | 16 t |
| Water capacity | 21,000 l |
| Fuel capacity | 6 t (coal) |
Boiler
| Property | Alsace-Lorraine S 12 Standard Remove |
|---|---|
| Grate area | 3.22 m² |
| Firebox surface | 17.38 m² |
| Tube heating surface | 182.83 m² |
| Evaporative heating surface | 200.21 m² |
| Superheater surface | 38.5 m² |
| Total heating surface | 238.7 m² |
Power plant
| Property | Alsace-Lorraine S 12 Standard Remove |
|---|---|
| Driver diameter | 2,040 mm |
| Boiler pressure | 15 bar |
| Expansion type | compound |
| Cylinders | four, HP: 380 x 660 mm and LP: 600 x 660 mm |
Power
| Property | Alsace-Lorraine S 12 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,000 kW (1,360 PS) |
| Top speed | 100 km/h |
| Starting effort | 85.0 kN |
| Starting effort simple | 102.0 kN |
Calculated values
| Property | Alsace-Lorraine S 12 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 5.54 |
| Optimal speed | 72 km/h |
| Power-to-weight ratio | 12.1 kW/t |
| Heating Surface Equivalent | 364.1 m² |
| Cylinder volume/HSE | 1 : 923.66 |
| Adhesive weight/Total | 1 : 1.72 |
| Tractive force/Heating surface | 1 : 7.44 |
| Grate area/Heating surface | 1 : 74.13 |
| Firebox/Tube surface | 1 : 10.52 |
| Total/Superheater | 1 : 5.20 |
