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Polish State Railways Pt47
After the Second World War, the PKP had the Pt47 developed as a further development of the pre-war Pt31. The P stood for express train, the t for the wheel arrangement 2-8-2 and the number for the year of development....
General
| Property | Polish State Railways Pt47Remove |
|---|---|
| Built | 1948-1951 |
| Manufacturers | Fablok, Cegielski |
| Wheel arrangement | 2-8-2 (Mikado) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Polish State Railways Pt47Remove |
|---|---|
| Length | 23.84 m |
| Wheelbase | 12.20 m |
| Rigid wheelbase | 6.00 m |
| Empty weight | 97 t |
| Service weight | 104.2 t |
| Adhesive weight | 73.8 t |
| Axle load | 18.3 t |
| Total weight | 183.8 t |
| Water capacity | 33,000 l |
| Fuel capacity | 17 t (coal) |
Boiler
| Property | Polish State Railways Pt47Remove |
|---|---|
| Grate area | 4.49 m² |
| Firebox surface | 19.8 m² |
| Tube heating surface | 219.4 m² |
| Evaporative heating surface | 239.2 m² |
| Superheater surface | 91.5 m² |
| Total heating surface | 330.7 m² |
Power plant
| Property | Polish State Railways Pt47Remove |
|---|---|
| Driver diameter | 1,850 mm |
| Boiler pressure | 15 bar |
| Expansion type | simple expansion |
| Cylinders | two, 630 x 700 mm |
Power
| Property | Polish State Railways Pt47Remove |
|---|---|
| Power source | steam |
| Indicated power | 1,472 kW (2,001 PS) |
| Top speed | 110 km/h |
| Starting effort | 191.5 kN |
Calculated values
| Property | Polish State Railways Pt47Remove |
|---|---|
| Factor of adhesion | 1 : 3.78 |
| Optimal speed | 47 km/h |
| Power-to-weight ratio | 14.1 kW/t |
| Heating Surface Equivalent | 521.2 m² |
| Cylinder volume/HSE | 1 : 837.33 |
| Adhesive weight/Total | 1 : 1.41 |
| Tractive force/Heating surface | 1 : 12.09 |
| Grate area/Heating surface | 1 : 73.65 |
| Firebox/Tube surface | 1 : 11.08 |
| Total/Superheater | 1 : 2.61 |
