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Southern Pacific class M-6
The Southern Pacific class M-6, originally designated class EF, were Vauclain compound Moguls with drivers of 63 inches introduced in 1901. In the first year, Baldwin built 68 and 23 more were built between 1902 and 1...
| Southern Pacific class M-6Remove | |
|---|---|
| Variant | superheated |
| Built | 1901-1903, 1917-1918 |
| Manufacturers | Baldwin;Sacramento |
| Wheel arrangement | 1C |
| Gauge | 1435 mm |
| Length | |
| Service mass | 83779 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Southern Pacific class M-6superheated |
|---|---|
| Built | 1901-1903, 1917-1918 |
| Manufacturers | Baldwin, Sacramento |
| Wheel arrangement | 2-6-0 (Mogul) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Southern Pacific class M-6superheated |
|---|---|
| Wheelbase | 7.26 m |
| Service mass | 83.8 t |
| Adhesion mass | 72.1 t |
| Rigid wheelbase | 4.62 m |
| Axle load | 24 t |
| Water capacity | 22,712 l |
Boiler
| Property | Southern Pacific class M-6superheated |
|---|---|
| Grate area | 4.599 m² |
| Firebox surface | 15.794 m² |
| Tube heating surface | 170.663 m² |
| Evaporative heating surface | 186.457 m² |
| Superheater surface | 34.653 m² |
| Total heating surface | 221.1 m² |
Power plant
| Property | Southern Pacific class M-6superheated |
|---|---|
| Driver diameter | 1,600 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 533 x 711 mm |
Power
| Property | Southern Pacific class M-6superheated |
|---|---|
| Power source | steam |
| Estimated power | 1,156 kW (1,572 PS) |
| Starting effort | 148.2 kN |
Calculated values
| Property | Southern Pacific class M-6superheated |
|---|---|
| Factor of adhesion | 1 : 4.77 |
| Optimal speed | 48 km/h |
| Power-to-weight ratio | 13.8 kW/t |
| Heating Surface Equivalent | 334.7 m² |
| Cylinder volume/HSE | 1 : 949.55 |
| Adhesive weight/Total | 1 : 1.16 |
| Tractive force/Heating surface | 1 : 14.00 |
| Grate area/Heating surface | 1 : 48.08 |
| Firebox/Tube surface | 1 : 10.81 |
| Total/Superheater | 1 : 5.38 |
