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Württemberg VII
Class VII, known as class D from 1858, was a passenger locomotive of the Royal Württemberg State Railways. It was created as a derivative of the VI and looked relatively similar to it.
| Württemberg VIIRemove | |
|---|---|
| Variant | Standard |
| Built | 1856-1868 |
| Manufacturers | Esslingen |
| Wheel arrangement | 2B |
| Gauge | 1435 mm |
| Length | 12500 mm |
| Service mass | 26500 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Württemberg VII Standard Remove |
|---|---|
| Built | 1856-1868 |
| Manufacturers | Esslingen |
| Wheel arrangement | 4-4-0 (American) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Württemberg VII Standard Remove |
|---|---|
| Length | 12.50 m |
| Wheelbase | 4.67 m |
| Service mass | 26.5 t |
| Adhesion mass | 14.2 t |
| Rigid wheelbase | 2.10 m |
| Axle load | 7.5 t |
Boiler
| Property | Württemberg VII Standard Remove |
|---|---|
| Grate area | 0.89 m² |
| Evaporative heating surface | 67.79 m² |
| Total heating surface | 67.8 m² |
Power plant
| Property | Württemberg VII Standard Remove |
|---|---|
| Driver diameter | 1,386 mm |
| Boiler pressure | 7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 381 x 561 mm |
Power
| Property | Württemberg VII Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 110 kW (150 PS) |
| Starting effort | 35.0 kN |
Calculated values
| Property | Württemberg VII Standard Remove |
|---|---|
| Factor of adhesion | 1 : 3.98 |
| Optimal speed | 19 km/h |
| Power-to-weight ratio | 4.2 kW/t |
| Adhesive weight/Total | 1 : 1.87 |
| Tractive force/Heating surface | 1 : 10.77 |
| Grate area/Heating surface | 1 : 76.17 |
