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Madagascar Railway No. 35 to 40 and 61 to 68
The first five Mallets for the Madagascar Railway were built in 1916 by Baldwin and carried the works numbers 44331 to 44334, 44609 and 44610. They had to be suitable for the winding lines between the east coast and t...
| Madagascar Railway No. 35 to 40 and 61 to 68Remove | |
|---|---|
| Variant | |
| Built | 1925 |
| Manufacturers | SACM |
| Wheel arrangement | BB t ma |
| Gauge | 1000 mm |
| Length | |
| Service mass | 32570 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Madagascar Railway No. 35 to 40 and 61 to 68Remove |
|---|---|
| Built | 1925 |
| Manufacturers | SACM |
| Wheel arrangement | 0-4-4-0T (Four Coupled Mallet) |
| Gauge | 1,000 mm |
Dimensions and weights
| Property | Madagascar Railway No. 35 to 40 and 61 to 68Remove |
|---|---|
| Wheelbase | 4.67 m |
| Total wheelbase | 9.20 m |
| Service mass | 32.6 t |
| Adhesion mass | 32.6 t |
| Total mass | 43.5 t |
| Rigid wheelbase | 1.40 m |
| Axle load | 8.2 t |
| Water capacity | 2,100 l |
| Fuel capacity | 3 t (wood) |
Boiler
| Property | Madagascar Railway No. 35 to 40 and 61 to 68Remove |
|---|---|
| Grate area | 1.19 m² |
| Firebox surface | 6.45 m² |
| Tube heating surface | 50.24 m² |
| Evaporative heating surface | 56.69 m² |
| Superheater surface | 16.85 m² |
| Total heating surface | 73.5 m² |
Power plant
| Property | Madagascar Railway No. 35 to 40 and 61 to 68Remove |
|---|---|
| Driver diameter | 1,010 mm |
| Boiler pressure | 12 bar |
| Expansion type | simple expansion |
| Cylinders | four, 300 x 500 mm |
Power
| Property | Madagascar Railway No. 35 to 40 and 61 to 68Remove |
|---|---|
| Power source | steam |
| Estimated power | 300 kW (408 PS) |
| Starting effort | 90.9 kN |
Calculated values
| Property | Madagascar Railway No. 35 to 40 and 61 to 68Remove |
|---|---|
| Factor of adhesion | 1 : 3.52 |
| Optimal speed | 21 km/h |
| Power-to-weight ratio | 9.2 kW/t |
| Heating Surface Equivalent | 122.6 m² |
| Cylinder volume/HSE | 1 : 1,152.74 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 25.81 |
| Grate area/Heating surface | 1 : 61.80 |
| Firebox/Tube surface | 1 : 7.79 |
| Total/Superheater | 1 : 3.36 |
