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Palatinate Railways P 4
Although the designation suggests a passenger locomotive, the P 4 was an express locomotive built by Maffei for the Palatine Railway in 1905 and 1906. It was based on the Bavarian S 2/5, but had a larger grate that wa...
General
| Property | Palatinate Railways P 4 Remove |
|---|---|
| Built | 1905-1906 |
| Manufacturers | Maffei |
| Wheel arrangement | 4-4-2 (Atlantic) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Palatinate Railways P 4 Remove |
|---|---|
| Length | 18.71 m |
| Wheelbase | 8.70 m |
| Rigid wheelbase | 2.15 m |
| Total wheelbase | 16.80 m |
| Service weight | 74.3 t |
| Adhesive weight | 33 t |
| Axle load | 16.5 t |
| Total weight | 121.5 t |
| Water capacity | 20,000 l |
| Fuel capacity | 6.5 t (coal) |
Boiler
| Property | Palatinate Railways P 4 Remove |
|---|---|
| Grate area | 3.8 m² |
| Evaporative heating surface | 181.3 m² |
| Superheater surface | 41.7 m² |
| Total heating surface | 223.0 m² |
Power plant
| Property | Palatinate Railways P 4 Remove |
|---|---|
| Driver diameter | 2,010 mm |
| Boiler pressure | 15 bar |
| Expansion type | compound |
| Cylinders | four, HP: 360 x 640 mm and LP: 590 x 640 mm |
Power
| Property | Palatinate Railways P 4 Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,050 kW (1,428 PS) |
| Top speed | 100 km/h |
| Starting effort | 76.7 kN |
| Starting effort simple | 92.0 kN |
Calculated values
| Property | Palatinate Railways P 4 Remove |
|---|---|
| Factor of adhesion | 1 : 4.22 |
| Optimal speed | 84 km/h |
| Power-to-weight ratio | 14.1 kW/t |
| Adhesive weight/Total | 1 : 2.25 |
| Tractive force/Heating surface | 1 : 7.18 |
| Grate area/Heating surface | 1 : 58.68 |
| Total/Superheater | 1 : 4.35 |
