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Rhaetian Railway G 2/3+2/2
To open the new line from Filisur to Davos, the RhB needed new locomotives that had to have sufficient tractive effort on the line, which had a gradient of up to 3.5 percent. Above all, it should not only be possible ...
General
| Property | Rhaetian Railway G 2/3+2/2 superheated |
|---|---|
| Built | 1902-1903 |
| Manufacturers | SLM |
| Wheel arrangement | 2-4-4-0T (Vivarais (Mallet)) |
| Gauge | 1,000 mm (Meter gauge) |
Dimensions and weights
| Property | Rhaetian Railway G 2/3+2/2 superheated |
|---|---|
| Length | 10.63 m |
| Wheelbase | 7.10 m |
| Rigid wheelbase | 1.60 m |
| Empty weight | 40.8 t |
| Service weight | 48.4 t |
| Adhesive weight | 43.9 t |
| Axle load | 10.8 t |
| Water capacity | 3,400 l |
| Fuel capacity | 1 t (coal) |
Boiler
| Property | Rhaetian Railway G 2/3+2/2 superheated |
|---|---|
| Grate area | 1.3 m² |
| Firebox surface | 7 m² |
| Tube heating surface | 76.9 m² |
| Evaporative heating surface | 83.9 m² |
| Superheater surface | 20 m² |
| Total heating surface | 103.9 m² |
Power plant
| Property | Rhaetian Railway G 2/3+2/2 superheated |
|---|---|
| Driver diameter | 1,050 mm |
| Boiler pressure | 14 bar |
| Expansion type | compound |
| Cylinders | four, HP: 315 x 550 mm and LP: 490 x 550 mm |
Power
| Property | Rhaetian Railway G 2/3+2/2 superheated |
|---|---|
| Power source | steam |
| Estimated power | 420 kW (571 PS) |
| Starting effort | 87.5 kN |
| Starting effort simple | 105.0 kN |
Calculated values
| Property | Rhaetian Railway G 2/3+2/2 superheated |
|---|---|
| Factor of adhesion | 1 : 4.92 |
| Optimal speed | 29 km/h |
| Power-to-weight ratio | 8.7 kW/t |
| Heating Surface Equivalent | 158.9 m² |
| Cylinder volume/HSE | 1 : 1,192.20 |
| Adhesive weight/Total | 1 : 1.10 |
| Tractive force/Heating surface | 1 : 17.59 |
| Grate area/Heating surface | 1 : 79.92 |
| Firebox/Tube surface | 1 : 10.99 |
| Total/Superheater | 1 : 4.20 |
