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German Reichsbahn class 81
From 1927, the class 80 was the smallest model in the standard locomotive program. It was a tank locomotive with a 0-6-0T wheel arrangement, which was mainly used in shunting operations. However, since this was too we...
| German Reichsbahn class 81Remove | |
|---|---|
| Variant | Standard |
| Built | 1928 |
| Manufacturers | Hanomag |
| Wheel arrangement | D t |
| Gauge | 1435 mm |
| Length | 11080 mm |
| Service mass | 67500 kg |
| Top speed | 45 km/h |
| Power | |
| Engine |
General
| Property | German Reichsbahn class 81 Standard Remove |
|---|---|
| Built | 1928 |
| Manufacturers | Hanomag |
| Wheel arrangement | 0-8-0T (Eight-coupled) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | German Reichsbahn class 81 Standard Remove |
|---|---|
| Length | 11.08 m |
| Wheelbase | 4.20 m |
| Empty mass | 52 t |
| Service mass | 67.5 t |
| Adhesion mass | 67.5 t |
| Rigid wheelbase | 4.20 m |
| Axle load | 16.9 t |
| Water capacity | 8,000 l |
| Fuel capacity | 3 t (coal) |
Boiler
| Property | German Reichsbahn class 81 Standard Remove |
|---|---|
| Grate area | 1.78 m² |
| Firebox surface | 7.7 m² |
| Tube heating surface | 88.2 m² |
| Evaporative heating surface | 95.9 m² |
| Superheater surface | 33 m² |
| Total heating surface | 128.9 m² |
Power plant
| Property | German Reichsbahn class 81 Standard Remove |
|---|---|
| Driver diameter | 1,100 mm |
| Boiler pressure | 14 bar |
| Expansion type | simple expansion |
| Cylinders | two, 500 x 550 mm |
Power
| Property | German Reichsbahn class 81 Standard Remove |
|---|---|
| Power source | steam |
| Indicated power | 633 kW (861 PS) |
| Top speed | 45 km/h |
| Starting effort | 148.7 kN |
Calculated values
| Property | German Reichsbahn class 81 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.45 |
| Optimal speed | 26 km/h |
| Power-to-weight ratio | 9.4 kW/t |
| Heating Surface Equivalent | 200.4 m² |
| Cylinder volume/HSE | 1 : 1,077.77 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 24.10 |
| Grate area/Heating surface | 1 : 72.42 |
| Firebox/Tube surface | 1 : 11.45 |
| Total/Superheater | 1 : 2.91 |
