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Southern Pacific class GS-6
The GS-6 was the last 4-8-4 “Golden State” locomotive built for the Southern Pacific. Lima built ten in 1943 which got the numbers 4460 to 4469. Designed in World War II, they got the nickname “War Babies”. They were ...
General
| Property | Southern Pacific class GS-6Remove |
|---|---|
| Built | 1943 |
| Manufacturers | Lima |
| Wheel arrangement | 4-8-4 (Northern) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Southern Pacific class GS-6Remove |
|---|---|
| Wheelbase | 13.97 m |
| Service weight | 212.5 t |
| Adhesive weight | 122.5 t |
| Axle load | 30.8 t |
| Total weight | 356.6 t |
| Water capacity | 87,822 l |
| Fuel capacity | 23,015 l (oil) |
Boiler
| Property | Southern Pacific class GS-6Remove |
|---|---|
| Grate area | 8.38 m² |
| Firebox surface | 32.516 m² |
| Tube heating surface | 418.25 m² |
| Evaporative heating surface | 450.766 m² |
| Superheater surface | 170.384 m² |
| Total heating surface | 621.2 m² |
Power plant
| Property | Southern Pacific class GS-6Remove |
|---|---|
| Driver diameter | 1,867 mm |
| Boiler pressure | 17.9 bar |
| Expansion type | simple expansion |
| Cylinders | two, 686 x 762 mm |
Power
| Property | Southern Pacific class GS-6Remove |
|---|---|
| Power source | steam |
| Estimated power | 3,505 kW (4,765 PS) |
| Starting effort | 292.5 kN |
Calculated values
| Property | Southern Pacific class GS-6Remove |
|---|---|
| Factor of adhesion | 1 : 4.11 |
| Optimal speed | 74 km/h |
| Power-to-weight ratio | 16.5 kW/t |
| Heating Surface Equivalent | 954.1 m² |
| Cylinder volume/HSE | 1 : 590.02 |
| Adhesive weight/Total | 1 : 1.73 |
| Tractive force/Heating surface | 1 : 9.84 |
| Grate area/Heating surface | 1 : 74.12 |
| Firebox/Tube surface | 1 : 12.86 |
| Total/Superheater | 1 : 2.65 |
