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Saxon H IV b T, later IIb T
Starting in 1856, Hartmann started to build four 2-4-0T tank locomotives for the Obererzgebirgische Staatsbahn for use in coal traffic. In the years up to 1874, two other companies in the Zwickau coal district followe...
| Saxon H IV b T, later IIb TRemove | |
|---|---|
| Variant | 1856 variant |
| Built | 1856 |
| Manufacturers | Hartmann |
| Wheel arrangement | 1B t |
| Gauge | 1435 mm |
| Length | |
| Service mass | 32500 kg |
| Top speed | 50 km/h |
| Power | |
| Engine |
General
| Property | Saxon H IV b T, later IIb T1856 variant |
|---|---|
| Built | 1856 |
| Manufacturers | Hartmann |
| Wheel arrangement | 2-4-0T (Porter) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Saxon H IV b T, later IIb T1856 variant |
|---|---|
| Wheelbase | 3.58 m |
| Empty mass | 27.8 t |
| Service mass | 32.5 t |
| Adhesion mass | 26.7 t |
| Rigid wheelbase | 1.55 m |
| Axle load | 13.4 t |
| Water capacity | 1,900 l |
| Fuel capacity | 1 t (coal) |
Boiler
| Property | Saxon H IV b T, later IIb T1856 variant |
|---|---|
| Grate area | 0.8 m² |
| Firebox surface | 5.3 m² |
| Tube heating surface | 72.3 m² |
| Evaporative heating surface | 77.6 m² |
| Total heating surface | 77.6 m² |
Power plant
| Property | Saxon H IV b T, later IIb T1856 variant |
|---|---|
| Driver diameter | 1,370 mm |
| Boiler pressure | 7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 381 x 560 mm |
Power
| Property | Saxon H IV b T, later IIb T1856 variant |
|---|---|
| Power source | steam |
| Estimated power | 100 kW (136 PS) |
| Top speed | 50 km/h |
| Starting effort | 35.3 kN |
Calculated values
| Property | Saxon H IV b T, later IIb T1856 variant |
|---|---|
| Factor of adhesion | 1 : 7.42 |
| Optimal speed | 18 km/h |
| Power-to-weight ratio | 3.1 kW/t |
| Heating Surface Equivalent | 104.1 m² |
| Cylinder volume/HSE | 1 : 1,226.61 |
| Adhesive weight/Total | 1 : 1.22 |
| Tractive force/Heating surface | 1 : 9.50 |
| Grate area/Heating surface | 1 : 97.00 |
| Firebox/Tube surface | 1 : 13.64 |
