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German Reichsbahn class 41
For fast freight service, the Reichsbahn chose the 2-8-2 wheel arrangement in order to be able to achieve the required power with an axle load of 18 tonnes. To increase the adhesive weight on main lines, the axle load...
| German Reichsbahn class 41Remove | |
|---|---|
| Variant | |
| Built | 1937-1941 |
| Manufacturers | BMAG;Borsig;Esslingen;Henschel;Jung;Krauss-Maffei;Krupp;O&K;Schichau |
| Wheel arrangement | 1D1 |
| Gauge | 1435 mm |
| Length | 23905 mm |
| Service mass | 101900 kg |
| Top speed | 90 km/h |
| Power | |
| Engine |
General
| Property | German Reichsbahn class 41Remove |
|---|---|
| Built | 1937-1941 |
| Manufacturers | BMAG, Borsig, Esslingen, Henschel, Jung, Krauss-Maffei, Krupp, O&K, Schichau |
| Wheel arrangement | 2-8-2 (Mikado) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | German Reichsbahn class 41Remove |
|---|---|
| Length | 23.91 m |
| Wheelbase | 12.05 m |
| Total wheelbase | 20.18 m |
| Empty mass | 92.6 t |
| Service mass | 101.9 t |
| Adhesion mass | 70 t |
| Total mass | 176.1 t |
| Rigid wheelbase | 5.55 m |
| Axle load | 18.2 t |
| Water capacity | 34,000 l |
| Fuel capacity | 10 t (coal) |
Boiler
| Property | German Reichsbahn class 41Remove |
|---|---|
| Grate area | 3.89 m² |
| Firebox surface | 15.9 m² |
| Tube heating surface | 187.25 m² |
| Evaporative heating surface | 203.15 m² |
| Superheater surface | 72.22 m² |
| Total heating surface | 275.4 m² |
Power plant
| Property | German Reichsbahn class 41Remove |
|---|---|
| Driver diameter | 1,600 mm |
| Boiler pressure | 20 bar |
| Expansion type | simple expansion |
| Cylinders | two, 520 x 720 mm |
Power
| Property | German Reichsbahn class 41Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,625 kW (2,209 PS) |
| Top speed | 90 km/h |
| Starting effort | 206.9 kN |
Calculated values
| Property | German Reichsbahn class 41Remove |
|---|---|
| Factor of adhesion | 1 : 3.32 |
| Optimal speed | 48 km/h |
| Power-to-weight ratio | 15.9 kW/t |
| Heating Surface Equivalent | 427.1 m² |
| Cylinder volume/HSE | 1 : 716.04 |
| Adhesive weight/Total | 1 : 1.46 |
| Tractive force/Heating surface | 1 : 15.69 |
| Grate area/Heating surface | 1 : 70.79 |
| Firebox/Tube surface | 1 : 11.78 |
| Total/Superheater | 1 : 2.81 |
