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Saxon VII (Schwartzkopff type)
On the Royal Saxon State Railways, class VII referred to four-coupled tender locomotives which were suitable for both passenger and freight trains. In addition to 22 locomotives from Sächsische Maschinenfabrik Hartman...
General
| Property | Saxon VII (Schwartzkopff type)Remove |
|---|---|
| Built | 1869 |
| Manufacturers | BMAG |
| Wheel arrangement | 0-4-0 (Four-coupled) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Saxon VII (Schwartzkopff type)Remove |
|---|---|
| Empty weight | 24.1 t |
| Service weight | 27.8 t |
| Adhesive weight | 27.8 t |
| Axle load | 13.9 t |
| Water capacity | 5,660 l |
| Fuel capacity | 2 t (coal) |
Boiler
| Property | Saxon VII (Schwartzkopff type)Remove |
|---|---|
| Grate area | 1.2 m² |
| Firebox surface | 6.6 m² |
| Tube heating surface | 87 m² |
| Evaporative heating surface | 93.6 m² |
| Total heating surface | 93.6 m² |
Power plant
| Property | Saxon VII (Schwartzkopff type)Remove |
|---|---|
| Driver diameter | 1,525 mm |
| Boiler pressure | 8.4 bar |
| Expansion type | simple expansion |
| Cylinders | two, 420 x 610 mm |
Power
| Property | Saxon VII (Schwartzkopff type)Remove |
|---|---|
| Power source | steam |
| Estimated power | 200 kW (272 PS) |
| Starting effort | 50.4 kN |
Calculated values
| Property | Saxon VII (Schwartzkopff type)Remove |
|---|---|
| Factor of adhesion | 1 : 5.41 |
| Optimal speed | 24 km/h |
| Power-to-weight ratio | 7.2 kW/t |
| Heating Surface Equivalent | 126.6 m² |
| Cylinder volume/HSE | 1 : 1,335.10 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 11.24 |
| Grate area/Heating surface | 1 : 78.00 |
| Firebox/Tube surface | 1 : 13.18 |
