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German Federal Railway class 50[h]40[/h]
After initial attempts with the Franco-Crosti boiler on the class 42 were unsuccessful due to corrosion damage, a new attempt was made in 1954 on a class 50 locomotive. Since this enabled a coal saving of 22 percent t...
General
| Property | German Federal Railway class 50[h]40[/h]Remove |
|---|---|
| Built | 1954, 1958-1959 |
| Manufacturers | Henschel, AW Schwerte |
| Wheel arrangement | 2-10-0 (Decapod) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | German Federal Railway class 50[h]40[/h]Remove |
|---|---|
| Length | 22.94 m |
| Wheelbase | 9.20 m |
| Rigid wheelbase | 3.30 m |
| Service weight | 90.6 t |
| Adhesive weight | 78.4 t |
| Axle load | 15.7 t |
| Total weight | 151.6 t |
| Water capacity | 26,000 l |
| Fuel capacity | 8 t (coal) |
Boiler
| Property | German Federal Railway class 50[h]40[/h]Remove |
|---|---|
| Grate area | 3.05 m² |
| Firebox surface | 17.3 m² |
| Tube heating surface | 176.17 m² |
| Evaporative heating surface | 193.47 m² |
| Superheater surface | 48.8 m² |
| Total heating surface | 242.3 m² |
Power plant
| Property | German Federal Railway class 50[h]40[/h]Remove |
|---|---|
| Driver diameter | 1,400 mm |
| Boiler pressure | 16 bar |
| Expansion type | simple expansion |
| Cylinders | two, 600 x 660 mm |
Power
| Property | German Federal Railway class 50[h]40[/h]Remove |
|---|---|
| Power source | steam |
| Indicated power | 1,133 kW (1,540 PS) |
| Top speed | 80 km/h |
| Starting effort | 230.8 kN |
Calculated values
| Property | German Federal Railway class 50[h]40[/h]Remove |
|---|---|
| Factor of adhesion | 1 : 3.33 |
| Optimal speed | 31 km/h |
| Power-to-weight ratio | 12.5 kW/t |
| Heating Surface Equivalent | 377.6 m² |
| Cylinder volume/HSE | 1 : 988.48 |
| Adhesive weight/Total | 1 : 1.16 |
| Tractive force/Heating surface | 1 : 19.90 |
| Grate area/Heating surface | 1 : 79.43 |
| Firebox/Tube surface | 1 : 10.18 |
| Total/Superheater | 1 : 3.96 |
