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Alsace-Lorraine A 18
The A 18, later called S 5, was a 4-4-0 express locomotive that had been ordered when it became evident that the A 15 and A 16 (the later S 3) were not powerful enough for the growing demands. Like its predecessors it...
| Alsace-Lorraine A 18Remove | |
|---|---|
| Variant | Serve tubes |
| Built | 1902-1904, 1913 |
| Manufacturers | Grafenstaden |
| Wheel arrangement | 2B |
| Gauge | 1435 mm |
| Length | 17401 mm |
| Service mass | 55600 kg |
| Top speed | 100 km/h |
| Power | |
| Engine |
General
| Property | Alsace-Lorraine A 18Serve tubes |
|---|---|
| Built | 1902-1904, 1913 |
| Manufacturers | Grafenstaden |
| Wheel arrangement | 4-4-0 (American) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Alsace-Lorraine A 18Serve tubes |
|---|---|
| Length | 17.40 m |
| Length loco | 10.20 m |
| Service mass | 55.6 t |
| Adhesion mass | 32 t |
| Total mass | 76.6 t |
| Axle load | 16 t |
| Water capacity | 18,000 l |
| Fuel capacity | 5 t (coal) |
Boiler
| Property | Alsace-Lorraine A 18Serve tubes |
|---|---|
| Grate area | 2.28 m² |
| Firebox surface | 11.35 m² |
| Tube heating surface | 158.5 m² |
| Evaporative heating surface | 169.85 m² |
| Total heating surface | 169.9 m² |
Power plant
| Property | Alsace-Lorraine A 18Serve tubes |
|---|---|
| Driver diameter | 1,980 mm |
| Boiler pressure | 15 bar |
| Expansion type | compound |
| Cylinders | four, HP: 340 x 640 mm and LP: 530 x 640 mm |
Power
| Property | Alsace-Lorraine A 18Serve tubes |
|---|---|
| Power source | steam |
| Estimated power | 650 kW (884 PS) |
| Top speed | 100 km/h |
| Starting effort | 67.5 kN |
| Starting effort simple | 81.0 kN |
Calculated values
| Property | Alsace-Lorraine A 18Serve tubes |
|---|---|
| Factor of adhesion | 1 : 4.65 |
| Optimal speed | 60 km/h |
| Power-to-weight ratio | 11.7 kW/t |
| Heating Surface Equivalent | 226.6 m² |
| Cylinder volume/HSE | 1 : 1,135.96 |
| Adhesive weight/Total | 1 : 1.74 |
| Tractive force/Heating surface | 1 : 8.30 |
| Grate area/Heating surface | 1 : 74.50 |
| Firebox/Tube surface | 1 : 13.96 |
