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Polish State Railways Ol49
The Ol49 was a 2-6-2 passenger locomotive built after World War II to replace older 2-6-2 or 4-6-0 locomotives like the Prussian P 8. It had a driver diameter of 1,750 mm and a top speed of 100 km/h. With good coal, t...
General
| Property | Polish State Railways Ol49Remove |
|---|---|
| Built | 1951-1954 |
| Manufacturers | Fablok |
| Wheel arrangement | 2-6-2 (Prairie) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Polish State Railways Ol49Remove |
|---|---|
| Length | 20.68 m |
| Length loco | 10.25 m |
| Wheelbase | 17.57 m |
| Total wheelbase | 4.00 m |
| Empty weight | 75.1 t |
| Service weight | 83.3 t |
| Adhesive weight | 51.4 t |
| Axle load | 17.2 t |
| Total weight | 151.4 t |
| Water capacity | 25,000 l |
| Fuel capacity | 12 t (coal) |
Boiler
| Property | Polish State Railways Ol49Remove |
|---|---|
| Grate area | 3.7 m² |
| Firebox surface | 16.7 m² |
| Tube heating surface | 146.2 m² |
| Evaporative heating surface | 162.9 m² |
| Superheater surface | 68.3 m² |
| Total heating surface | 231.2 m² |
Power plant
| Property | Polish State Railways Ol49Remove |
|---|---|
| Driver diameter | 1,750 mm |
| Boiler pressure | 16 bar |
| Expansion type | simple expansion |
| Cylinders | two, 500 x 630 mm |
Power
| Property | Polish State Railways Ol49Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,200 kW (1,632 PS) |
| Top speed | 100 km/h |
| Starting effort | 122.4 kN |
Calculated values
| Property | Polish State Railways Ol49Remove |
|---|---|
| Factor of adhesion | 1 : 4.12 |
| Optimal speed | 60 km/h |
| Power-to-weight ratio | 14.4 kW/t |
| Heating Surface Equivalent | 383.0 m² |
| Cylinder volume/HSE | 1 : 645.95 |
| Adhesive weight/Total | 1 : 1.62 |
| Tractive force/Heating surface | 1 : 11.06 |
| Grate area/Heating surface | 1 : 62.49 |
| Firebox/Tube surface | 1 : 8.75 |
| Total/Superheater | 1 : 2.39 |
