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German Reichsbahn class 61
In the 1930s, the German steam locomotive industry found itself increasingly under pressure from modern express DMUs . Starting in 1933, Henschel designed the Henschel-Wegmann train, in which both the locomotive and t...
| German Reichsbahn class 61Remove | |
|---|---|
| Variant | |
| Built | 1939 |
| Manufacturers | Henschel |
| Wheel arrangement | 2C3 t |
| Gauge | 1435 mm |
| Length | 18825 mm |
| Service mass | 146200 kg |
| Top speed | 175 km/h |
| Power | |
| Engine |
General
| Property | German Reichsbahn class 61Remove |
|---|---|
| Built | 1939 |
| Manufacturers | Henschel |
| Wheel arrangement | 4-6-6T |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | German Reichsbahn class 61Remove |
|---|---|
| Length | 18.83 m |
| Service mass | 146.2 t |
| Adhesion mass | 56.3 t |
| Rigid wheelbase | 5.10 m |
| Axle load | 18.8 t |
| Water capacity | 21,000 l |
| Fuel capacity | 6 t (coal) |
Boiler
| Property | German Reichsbahn class 61Remove |
|---|---|
| Grate area | 2.79 m² |
| Firebox surface | 16.4 m² |
| Tube heating surface | 133.42 m² |
| Evaporative heating surface | 149.82 m² |
| Superheater surface | 69.2 m² |
| Total heating surface | 219.0 m² |
Power plant
| Property | German Reichsbahn class 61Remove |
|---|---|
| Driver diameter | 2,300 mm |
| Boiler pressure | 20 bar |
| Expansion type | simple expansion |
| Cylinders | three, 390 x 660 mm |
Power
| Property | German Reichsbahn class 61Remove |
|---|---|
| Power source | steam |
| Indicated power | 1,066 kW (1,449 PS) |
| Top speed | 175 km/h |
| Starting effort | 111.3 kN |
Calculated values
| Property | German Reichsbahn class 61Remove |
|---|---|
| Factor of adhesion | 1 : 4.96 |
| Optimal speed | 58 km/h |
| Power-to-weight ratio | 7.3 kW/t |
| Heating Surface Equivalent | 370.2 m² |
| Cylinder volume/HSE | 1 : 638.89 |
| Adhesive weight/Total | 1 : 2.60 |
| Tractive force/Heating surface | 1 : 10.61 |
| Grate area/Heating surface | 1 : 78.50 |
| Firebox/Tube surface | 1 : 8.14 |
| Total/Superheater | 1 : 2.17 |
