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Spanish State Railways 242F
In Spain the 4-8-4 wheel arrangement was called “Confederacion”. The only series-produced tender locomotive of this wheel arrangement in Western Europe was the RENFE 242 T, numbered 2001 to 2010. These ten locomotives...
General
| Property | Spanish State Railways 242FRemove |
|---|---|
| Built | 1955 |
| Manufacturers | MTM |
| Wheel arrangement | 4-8-4 (Northern) |
| Gauge | 1,668 mm (Iberian broad gauge) |
Dimensions and weights
| Property | Spanish State Railways 242FRemove |
|---|---|
| Length loco | 17.48 m |
| Wheelbase | 13.20 m |
| Rigid wheelbase | 5.55 m |
| Total wheelbase | 22.93 m |
| Service weight | 142.5 t |
| Adhesive weight | 78.6 t |
| Axle load | 22 t |
| Total weight | 212.7 t |
| Water capacity | 27,000 l |
| Fuel capacity | 13,500 l (oil) |
Boiler
| Property | Spanish State Railways 242FRemove |
|---|---|
| Grate area | 5.3 m² |
| Firebox surface | 26.15 m² |
| Tube heating surface | 290.45 m² |
| Evaporative heating surface | 316.6 m² |
| Superheater surface | 104.5 m² |
| Total heating surface | 421.1 m² |
Power plant
| Property | Spanish State Railways 242FRemove |
|---|---|
| Driver diameter | 1,900 mm |
| Boiler pressure | 16 bar |
| Expansion type | simple expansion |
| Cylinders | two, 640 x 710 mm |
Power
| Property | Spanish State Railways 242FRemove |
|---|---|
| Power source | steam |
| Estimated power | 2,700 kW (3,671 PS) |
| Top speed | 120 km/h |
| Starting effort | 208.2 kN |
Calculated values
| Property | Spanish State Railways 242FRemove |
|---|---|
| Factor of adhesion | 1 : 3.70 |
| Optimal speed | 79 km/h |
| Power-to-weight ratio | 18.9 kW/t |
| Heating Surface Equivalent | 656.4 m² |
| Cylinder volume/HSE | 1 : 695.99 |
| Adhesive weight/Total | 1 : 1.81 |
| Tractive force/Heating surface | 1 : 10.32 |
| Grate area/Heating surface | 1 : 79.45 |
| Firebox/Tube surface | 1 : 11.11 |
| Total/Superheater | 1 : 3.03 |
