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Soviet Railways series ГР (GR)
After the Second World War, the Soviet Union needed a large number of narrow-gauge steam locomotives for use on forest and industrial railways with a gauge of 750 mm. As reparations, a total of 420 locomotives of the ...
General
| Property | Soviet Railways series ГР (GR)Remove |
|---|---|
| Built | 1947-1956 |
| Manufacturers | LKM Babelsberg |
| Wheel arrangement | 0-8-0 (Eight-coupled) |
| Gauge | 750 mm (750 mm) |
Dimensions and weights
| Property | Soviet Railways series ГР (GR)Remove |
|---|---|
| Length | 12.01 m |
| Wheelbase | 2.80 m |
| Rigid wheelbase | 2.80 m |
| Empty weight | 23.4 t |
| Service weight | 25.6 t |
| Adhesive weight | 25.6 t |
| Axle load | 6.4 t |
| Total weight | 39.6 t |
| Water capacity | 5,500 l |
| Fuel capacity | 3 t (wood) |
Boiler
| Property | Soviet Railways series ГР (GR)Remove |
|---|---|
| Grate area | 1.6 m² |
| Firebox surface | 6.04 m² |
| Tube heating surface | 36.85 m² |
| Evaporative heating surface | 42.89 m² |
| Superheater surface | 19 m² |
| Total heating surface | 61.9 m² |
Power plant
| Property | Soviet Railways series ГР (GR)Remove |
|---|---|
| Driver diameter | 800 mm |
| Boiler pressure | 13 bar |
| Expansion type | simple expansion |
| Cylinders | two, 370 x 400 mm |
Power
| Property | Soviet Railways series ГР (GR)Remove |
|---|---|
| Power source | steam |
| Indicated power | 220 kW (299 PS) |
| Top speed | 75 km/h |
| Starting effort | 75.6 kN |
Calculated values
| Property | Soviet Railways series ГР (GR)Remove |
|---|---|
| Factor of adhesion | 1 : 3.32 |
| Optimal speed | 18 km/h |
| Power-to-weight ratio | 8.6 kW/t |
| Heating Surface Equivalent | 111.1 m² |
| Cylinder volume/HSE | 1 : 774.30 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 25.52 |
| Grate area/Heating surface | 1 : 38.68 |
| Firebox/Tube surface | 1 : 6.10 |
| Total/Superheater | 1 : 2.26 |
