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Danish State Railways R (II)
The R (II) was the three-cylinder variant of he 4-6-0 R (I). Built for lines with inclines, the third cylinder was to improve running characteristics when running at full power or at high speeds. Inspiration for this ...
General
| Property | Danish State Railways R (II)Remove |
|---|---|
| Built | 1921, 1924 |
| Wheel arrangement | 4-6-0 (Ten-wheeler) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Danish State Railways R (II)Remove |
|---|---|
| Length | 19.62 m |
| Wheelbase | 9.50 m |
| Rigid wheelbase | 4.60 m |
| Total wheelbase | 16.80 m |
| Empty weight | 66.3 t |
| Service weight | 74 t |
| Adhesive weight | 50.1 t |
| Axle load | 17 t |
| Total weight | 122.4 t |
| Water capacity | 21,000 l |
| Fuel capacity | 6 t (coal) |
Boiler
| Property | Danish State Railways R (II)Remove |
|---|---|
| Grate area | 2.62 m² |
| Firebox surface | 17.44 m² |
| Tube heating surface | 152 m² |
| Evaporative heating surface | 169.44 m² |
| Superheater surface | 44.24 m² |
| Total heating surface | 213.7 m² |
Power plant
| Property | Danish State Railways R (II)Remove |
|---|---|
| Driver diameter | 1,866 mm |
| Boiler pressure | 12 bar |
| Expansion type | simple expansion |
| Cylinders | three, 470 x 670 mm |
Power
| Property | Danish State Railways R (II)Remove |
|---|---|
| Power source | steam |
| Estimated power | 950 kW (1,292 PS) |
| Top speed | 100 km/h |
| Starting effort | 121.4 kN |
Calculated values
| Property | Danish State Railways R (II)Remove |
|---|---|
| Factor of adhesion | 1 : 4.05 |
| Optimal speed | 48 km/h |
| Power-to-weight ratio | 12.8 kW/t |
| Heating Surface Equivalent | 345.1 m² |
| Cylinder volume/HSE | 1 : 1,010.44 |
| Adhesive weight/Total | 1 : 1.48 |
| Tractive force/Heating surface | 1 : 11.86 |
| Grate area/Heating surface | 1 : 81.56 |
| Firebox/Tube surface | 1 : 8.72 |
| Total/Superheater | 1 : 3.83 |
