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Soviet Railways series КП-4 (KP-4)
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 901 locomotives of the ...
| Soviet Railways series КП-4 (KP-4)Remove | |
|---|---|
| Variant | Standard |
| Built | 1950-1957 |
| Manufacturers | Fablok |
| Wheel arrangement | D |
| Gauge | 750;762 mm |
| Length | 10644 mm |
| Service mass | 16000 kg |
| Top speed | 35 km/h |
| Power | |
| Engine |
General
| Property | Soviet Railways series КП-4 (KP-4) Standard Remove |
|---|---|
| Built | 1950-1957 |
| Manufacturers | Fablok |
| Wheel arrangement | 0-8-0 (Eight-coupled) |
| Gauge | 750 mm; 762 mm |
Dimensions and weights
| Property | Soviet Railways series КП-4 (KP-4) Standard Remove |
|---|---|
| Length | 10.64 m |
| Length loco | 5.71 m |
| Wheelbase | 2.25 m |
| Total wheelbase | 8.20 m |
| Empty mass | 14 t |
| Service mass | 16 t |
| Adhesion mass | 16 t |
| Total mass | 28 t |
| Rigid wheelbase | 2.25 m |
| Axle load | 4 t |
| Water capacity | 5,200 l |
| Fuel capacity | 2 t (coal) |
Boiler
| Property | Soviet Railways series КП-4 (KP-4) Standard Remove |
|---|---|
| Grate area | 1.01 m² |
| Evaporative heating surface | 37.15 m² |
| Superheater surface | 13.48 m² |
| Total heating surface | 50.6 m² |
Power plant
| Property | Soviet Railways series КП-4 (KP-4) Standard Remove |
|---|---|
| Driver diameter | 600 mm |
| Boiler pressure | 13 bar |
| Expansion type | simple expansion |
| Cylinders | two, 285 x 300 mm |
Power
| Property | Soviet Railways series КП-4 (KP-4) Standard Remove |
|---|---|
| Power source | steam |
| Indicated power | 132 kW (179 PS) |
| Top speed | 35 km/h |
| Starting effort | 44.9 kN |
Calculated values
| Property | Soviet Railways series КП-4 (KP-4) Standard Remove |
|---|---|
| Factor of adhesion | 1 : 3.50 |
| Optimal speed | 18 km/h |
| Power-to-weight ratio | 8.3 kW/t |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 18.51 |
| Grate area/Heating surface | 1 : 50.13 |
| Total/Superheater | 1 : 2.76 |
