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PLM Algérie 231-132 AT and BT
At the beginning of the thirties, the PLM in Algeria needed very powerful express locomotives, as the compound ten-wheelers used there had reached their limits, even when running in double. The specifications stipulat...
| PLM Algérie 231-132 AT and BTRemove | |
|---|---|
| Variant | 231-132 BT |
| Built | 1936 |
| Manufacturers | Franco-Belge |
| Wheel arrangement | (2C1)(1C2) t ga |
| Gauge | 1435 mm |
| Length | 29380 mm |
| Service mass | 211600 kg |
| Top speed | 110 km/h |
| Power | |
| Engine |
General
| Property | PLM Algérie 231-132 AT and BT231-132 BT |
|---|---|
| Built | 1936 |
| Manufacturers | Franco-Belge |
| Wheel arrangement | 4-6-2+2-6-4T (Double Pacific (Garratt)) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | PLM Algérie 231-132 AT and BT231-132 BT |
|---|---|
| Length | 29.38 m |
| Wheelbase | 9.45 m |
| Total wheelbase | 26.51 m |
| Service mass | 211.6 t |
| Adhesion mass | 108 t |
| Rigid wheelbase | 3.92 m |
| Axle load | 18 t |
| Water capacity | 28,500 l |
Boiler
| Property | PLM Algérie 231-132 AT and BT231-132 BT |
|---|---|
| Grate area | 5.4 m² |
| Firebox surface | 20.47 m² |
| Tube heating surface | 239.19 m² |
| Evaporative heating surface | 259.66 m² |
| Superheater surface | 90.6 m² |
| Total heating surface | 350.3 m² |
Power plant
| Property | PLM Algérie 231-132 AT and BT231-132 BT |
|---|---|
| Driver diameter | 1,800 mm |
| Boiler pressure | 20 bar |
| Expansion type | simple expansion |
| Cylinders | four, 490 x 660 mm |
Power
| Property | PLM Algérie 231-132 AT and BT231-132 BT |
|---|---|
| Power source | steam |
| Estimated power | 1,900 kW (2,583 PS) |
| Top speed | 110 km/h |
| Starting effort | 299.3 kN |
Calculated values
| Property | PLM Algérie 231-132 AT and BT231-132 BT |
|---|---|
| Factor of adhesion | 1 : 3.54 |
| Optimal speed | 39 km/h |
| Power-to-weight ratio | 9.0 kW/t |
| Heating Surface Equivalent | 543.2 m² |
| Cylinder volume/HSE | 1 : 916.47 |
| Adhesive weight/Total | 1 : 1.96 |
| Tractive force/Heating surface | 1 : 17.85 |
| Grate area/Heating surface | 1 : 64.86 |
| Firebox/Tube surface | 1 : 11.68 |
| Total/Superheater | 1 : 2.87 |
