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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 | 1935 |
| Manufacturers | Henschel |
| Wheel arrangement | 2C2 t |
| Gauge | 1435 mm |
| Length | 18475 mm |
| Service mass | 129100 kg |
| Top speed | 175 km/h |
| Power | |
| Engine |
General
| Property | German Reichsbahn class 61Remove |
|---|---|
| Built | 1935 |
| Manufacturers | Henschel |
| Wheel arrangement | 4-6-4T (Hudson) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | German Reichsbahn class 61Remove |
|---|---|
| Length | 18.48 m |
| Wheelbase | 14.35 m |
| Service mass | 129.1 t |
| Adhesion mass | 56.7 t |
| Rigid wheelbase | 5.10 m |
| Axle load | 19 t |
| Water capacity | 17,000 l |
| Fuel capacity | 5 t (coal) |
Boiler
| Property | German Reichsbahn class 61Remove |
|---|---|
| Grate area | 2.75 m² |
| Firebox surface | 16.4 m² |
| Tube heating surface | 137.7 m² |
| Evaporative heating surface | 154.1 m² |
| Superheater surface | 69.2 m² |
| Total heating surface | 223.3 m² |
Power plant
| Property | German Reichsbahn class 61Remove |
|---|---|
| Driver diameter | 2,300 mm |
| Boiler pressure | 20 bar |
| Expansion type | simple expansion |
| Cylinders | two, 460 x 750 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 | 117.3 kN |
Calculated values
| Property | German Reichsbahn class 61Remove |
|---|---|
| Factor of adhesion | 1 : 4.74 |
| Optimal speed | 56 km/h |
| Power-to-weight ratio | 8.3 kW/t |
| Heating Surface Equivalent | 374.5 m² |
| Cylinder volume/HSE | 1 : 665.65 |
| Adhesive weight/Total | 1 : 2.28 |
| Tractive force/Heating surface | 1 : 10.97 |
| Grate area/Heating surface | 1 : 81.20 |
| Firebox/Tube surface | 1 : 8.40 |
| Total/Superheater | 1 : 2.23 |
