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German Reichsbahn class 71[h]0[/h]
Under the class 71, the Reichsbahn combined a number of tank locomotives of the Länderbahnen with the wheel arrangement 2-4-2T for light and fast passenger trains. To replace these locomotives, the 71[h]0[/h] was newl...
| German Reichsbahn class 71[h]0[/h]Remove | |
|---|---|
| Variant | 71 001-004 reduced boiler pressure |
| Built | 1934 |
| Manufacturers | BMAG |
| Wheel arrangement | 1B1 t |
| Gauge | 1435 mm |
| Length | 11900 mm |
| Service mass | 58600 kg |
| Top speed | 90 km/h |
| Power | |
| Engine |
General
| Property | German Reichsbahn class 71[h]0[/h]71 001-004 reduced boiler pressure |
|---|---|
| Built | 1934 |
| Manufacturers | BMAG |
| Wheel arrangement | 2-4-2T (Columbia) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | German Reichsbahn class 71[h]0[/h]71 001-004 reduced boiler pressure |
|---|---|
| Length | 11.90 m |
| Wheelbase | 8.40 m |
| Service mass | 58.6 t |
| Adhesion mass | 30 t |
| Rigid wheelbase | 3.00 m |
| Axle load | 15 t |
| Water capacity | 7,000 l |
| Fuel capacity | 3 t (coal) |
Boiler
| Property | German Reichsbahn class 71[h]0[/h]71 001-004 reduced boiler pressure |
|---|---|
| Grate area | 1.37 m² |
| Firebox surface | 5.5 m² |
| Tube heating surface | 67.43 m² |
| Evaporative heating surface | 72.93 m² |
| Superheater surface | 28.6 m² |
| Total heating surface | 101.5 m² |
Power plant
| Property | German Reichsbahn class 71[h]0[/h]71 001-004 reduced boiler pressure |
|---|---|
| Driver diameter | 1,500 mm |
| Boiler pressure | 16 bar |
| Expansion type | simple expansion |
| Cylinders | two, 310 x 660 mm |
Power
| Property | German Reichsbahn class 71[h]0[/h]71 001-004 reduced boiler pressure |
|---|---|
| Power source | steam |
| Indicated power | 419 kW (570 PS) |
| Top speed | 90 km/h |
| Starting effort | 57.5 kN |
Calculated values
| Property | German Reichsbahn class 71[h]0[/h]71 001-004 reduced boiler pressure |
|---|---|
| Factor of adhesion | 1 : 5.12 |
| Optimal speed | 45 km/h |
| Power-to-weight ratio | 7.2 kW/t |
| Heating Surface Equivalent | 157.6 m² |
| Cylinder volume/HSE | 1 : 632.05 |
| Adhesive weight/Total | 1 : 1.95 |
| Tractive force/Heating surface | 1 : 11.83 |
| Grate area/Heating surface | 1 : 74.11 |
| Firebox/Tube surface | 1 : 12.26 |
| Total/Superheater | 1 : 2.55 |
