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US Railroad Administration Light Santa Fe
The USRA Light Santa Fe was produced in smaller numbers than its heavy sister. Compared to this, it had drivers which were six inches smaller and a cylinder diameter that was three inches smaller. It shared the firebo...
General
| Property | US Railroad Administration Light Santa FeRemove |
|---|---|
| Built | 1918-1919 |
| Manufacturers | ALCO, Baldwin |
| Wheel arrangement | 2-10-2 (Santa Fé) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | US Railroad Administration Light Santa FeRemove |
|---|---|
| Length loco | 16.10 m |
| Wheelbase | 12.29 m |
| Rigid wheelbase | 6.40 m |
| Total wheelbase | 23.15 m |
| Service weight | 159.7 t |
| Adhesive weight | 124.3 t |
| Axle load | 27.2 t |
| Total weight | 245.1 t |
| Water capacity | 37,854 l |
| Fuel capacity | 14.5 t (coal) |
Boiler
| Property | US Railroad Administration Light Santa FeRemove |
|---|---|
| Grate area | 7.089 m² |
| Firebox surface | 34.653 m² |
| Tube heating surface | 398.833 m² |
| Evaporative heating surface | 433.486 m² |
| Superheater surface | 100.8 m² |
| Total heating surface | 534.3 m² |
Power plant
| Property | US Railroad Administration Light Santa FeRemove |
|---|---|
| Driver diameter | 1,448 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 686 x 813 mm |
Power
| Property | US Railroad Administration Light Santa FeRemove |
|---|---|
| Power source | steam |
| Estimated power | 2,535 kW (3,447 PS) |
| Starting effort | 309.5 kN |
Calculated values
| Property | US Railroad Administration Light Santa FeRemove |
|---|---|
| Factor of adhesion | 1 : 3.94 |
| Optimal speed | 50 km/h |
| Power-to-weight ratio | 15.9 kW/t |
| Heating Surface Equivalent | 808.4 m² |
| Cylinder volume/HSE | 1 : 742.85 |
| Adhesive weight/Total | 1 : 1.28 |
| Tractive force/Heating surface | 1 : 12.10 |
| Grate area/Heating surface | 1 : 75.37 |
| Firebox/Tube surface | 1 : 11.51 |
| Total/Superheater | 1 : 4.30 |
