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Southern Railway (USA) class Ss
In North Carolina, the Southern Railway operated the famous Saluda Grade with an incline that had an average of more than four percent for several miles . For use both as main locomotive and as helper on this grade an...
| Southern Railway (USA) class SsRemove | |
|---|---|
| Variant | Duplex tender |
| Built | 1917-1918 |
| Manufacturers | Baldwin;ALCO |
| Wheel arrangement | 1E1 |
| Gauge | 1435 mm |
| Length | |
| Service mass | |
| Top speed | |
| Power | |
| Engine |
General
| Property | Southern Railway (USA) class SsDuplex tender |
|---|---|
| Built | 1917-1918 |
| Manufacturers | Baldwin, ALCO |
| Wheel arrangement | 2-10-2 (Santa Fé) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Southern Railway (USA) class SsDuplex tender |
|---|---|
| Rigid wheelbase | 6.27 m |
Boiler
| Property | Southern Railway (USA) class SsDuplex tender |
|---|---|
| Grate area | 8,175.475 m² |
| Firebox surface | 33.306 m² |
| Tube heating surface | 452.949 m² |
| Evaporative heating surface | 486.255 m² |
| Superheater surface | 124.583 m² |
| Total heating surface | 610.8 m² |
Power plant
| Property | Southern Railway (USA) class SsDuplex tender |
|---|---|
| Driver diameter | 1,448 mm |
| Boiler pressure | 13.1 bar |
| Expansion type | simple expansion |
| Cylinders | four, 711 x 813 mm |
Power
| Property | Southern Railway (USA) class SsDuplex tender |
|---|---|
| Power source | steam |
| Estimated power | 2,759 kW (3,751 PS) |
| Starting effort | 632.4 kN |
| Starting effort booster | 80.068 kN |
Calculated values
| Property | Southern Railway (USA) class SsDuplex tender |
|---|---|
| Optimal speed | 27 km/h |
| Heating Surface Equivalent | 902.0 m² |
| Cylinder volume/HSE | 1 : 1,431.97 |
| Tractive force/Heating surface | 1 : 21.62 |
| Grate area/Heating surface | 1 : 0.07 |
| Firebox/Tube surface | 1 : 13.60 |
| Total/Superheater | 1 : 3.90 |
