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Prussian S 4
In order to take advantage of superheated steam technology that was just emerging, an example of the S 3 was converted in 1898 to test this technology. It was the world's first express locomotive of this type and the ...
| Prussian S 4Remove | |
|---|---|
| Variant | smoke tube superheater |
| Built | 1902-1909 |
| Manufacturers | Borsig;Henschel;Linke-Hofmann;Humboldt |
| Wheel arrangement | 2B |
| Gauge | 1435 mm |
| Length | 18210 mm |
| Service mass | 50200 kg |
| Top speed | 100 km/h |
| Power | |
| Engine |
General
| Property | Prussian S 4smoke tube superheater |
|---|---|
| Built | 1902-1909 |
| Manufacturers | Borsig, Henschel, Linke-Hofmann, Humboldt |
| Wheel arrangement | 4-4-0 (American) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Prussian S 4smoke tube superheater |
|---|---|
| Length | 18.21 m |
| Wheelbase | 7.20 m |
| Service mass | 50.2 t |
| Adhesion mass | 31.9 t |
| Rigid wheelbase | 2.60 m |
| Axle load | 16 t |
| Water capacity | 13,000 l |
| Fuel capacity | 5 t (coal) |
Boiler
| Property | Prussian S 4smoke tube superheater |
|---|---|
| Grate area | 2.32 m² |
| Firebox surface | 10.65 m² |
| Tube heating surface | 93.95 m² |
| Evaporative heating surface | 104.6 m² |
| Superheater surface | 33.91 m² |
| Total heating surface | 138.5 m² |
Power plant
| Property | Prussian S 4smoke tube superheater |
|---|---|
| Driver diameter | 1,980 mm |
| Boiler pressure | 12 bar |
| Expansion type | simple expansion |
| Cylinders | two, 540 x 600 mm |
Power
| Property | Prussian S 4smoke tube superheater |
|---|---|
| Power source | steam |
| Indicated power | 736 kW (1,001 PS) |
| Top speed | 100 km/h |
| Starting effort | 90.1 kN |
Calculated values
| Property | Prussian S 4smoke tube superheater |
|---|---|
| Factor of adhesion | 1 : 3.47 |
| Optimal speed | 50 km/h |
| Power-to-weight ratio | 14.7 kW/t |
| Heating Surface Equivalent | 225.7 m² |
| Cylinder volume/HSE | 1 : 1,217.82 |
| Adhesive weight/Total | 1 : 1.57 |
| Tractive force/Heating surface | 1 : 13.59 |
| Grate area/Heating surface | 1 : 59.70 |
| Firebox/Tube surface | 1 : 8.82 |
| Total/Superheater | 1 : 3.08 |
