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Prussian P 8
The P 8 was a passenger locomotive that was mainly developed as a successor to the P 6 and was later used as the basis for the development of the S 10. It is characterized by the fact that, with almost 4,000 built, it...
General
| Property | Prussian P 8 ca. 1910 variant |
|---|---|
| Built | 1906-1923 |
| Manufacturers | AEG, BMAG, Borsig, Hanomag, Henschel, Hohenzollern, Humboldt, MBG Karlsruhe, Linke-Hofmann, Schichau, Union Königsberg, Vulcan, Wolf |
| Wheel arrangement | 4-6-0 (Ten-wheeler) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Prussian P 8 ca. 1910 variant |
|---|---|
| Length loco | 11.20 m |
| Wheelbase | 8.35 m |
| Rigid wheelbase | 4.58 m |
| Empty weight | 63.6 t |
| Service weight | 69.8 t |
| Adhesive weight | 47.7 t |
| Axle load | 15.9 t |
| Water capacity | 21,500 l |
| Fuel capacity | 7 t (coal) |
Boiler
| Property | Prussian P 8 ca. 1910 variant |
|---|---|
| Grate area | 2.62 m² |
| Firebox surface | 14.7 m² |
| Tube heating surface | 135.9 m² |
| Evaporative heating surface | 150.6 m² |
| Superheater surface | 49.38 m² |
| Total heating surface | 200.0 m² |
Power plant
| Property | Prussian P 8 ca. 1910 variant |
|---|---|
| Driver diameter | 1,750 mm |
| Boiler pressure | 12 bar |
| Expansion type | simple expansion |
| Cylinders | two, 590 x 630 mm |
Power
| Property | Prussian P 8 ca. 1910 variant |
|---|---|
| Power source | steam |
| Indicated power | 868 kW (1,180 PS) |
| Top speed | 100 km/h |
| Starting effort | 127.8 kN |
Calculated values
| Property | Prussian P 8 ca. 1910 variant |
|---|---|
| Factor of adhesion | 1 : 3.66 |
| Optimal speed | 42 km/h |
| Power-to-weight ratio | 12.4 kW/t |
| Heating Surface Equivalent | 322.9 m² |
| Cylinder volume/HSE | 1 : 1,066.97 |
| Adhesive weight/Total | 1 : 1.46 |
| Tractive force/Heating surface | 1 : 13.35 |
| Grate area/Heating surface | 1 : 76.33 |
| Firebox/Tube surface | 1 : 9.24 |
| Total/Superheater | 1 : 3.05 |
