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Hungarian State Railways MIa
The Mla was a small tank locomotive for passenger service on branch lines with a low axle load limit. It was developed from the MI, but was lighter with smaller cylinders and now had its single powered axle in the rea...
| Hungarian State Railways MIaRemove | |
|---|---|
| Variant | |
| Built | 1910, 1913 |
| Manufacturers | MÁVAG |
| Wheel arrangement | 1A t |
| Gauge | 1435 mm |
| Length | 5424 mm |
| Service mass | 19400 kg |
| Top speed | 60 km/h |
| Power | |
| Engine |
General
| Property | Hungarian State Railways MIaRemove |
|---|---|
| Built | 1910, 1913 |
| Manufacturers | MÁVAG |
| Wheel arrangement | 2-2-0T |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Hungarian State Railways MIaRemove |
|---|---|
| Length | 5.42 m |
| Wheelbase | 3.10 m |
| Service mass | 19.4 t |
| Adhesion mass | 9.7 t |
| Rigid wheelbase | 3.10 m |
| Axle load | 9.7 t |
| Water capacity | 2,000 l |
| Fuel capacity | 0.7 t (coal) |
Boiler
| Property | Hungarian State Railways MIaRemove |
|---|---|
| Grate area | 0.78 m² |
| Firebox surface | 5.03 m² |
| Tube heating surface | 18.47 m² |
| Evaporative heating surface | 23.5 m² |
| Superheater surface | 7 m² |
| Total heating surface | 30.5 m² |
Power plant
| Property | Hungarian State Railways MIaRemove |
|---|---|
| Driver diameter | 1,040 mm |
| Boiler pressure | 15 bar |
| Expansion type | simple expansion |
| Cylinders | two, 220 x 400 mm |
Power
| Property | Hungarian State Railways MIaRemove |
|---|---|
| Power source | steam |
| Top speed | 60 km/h |
| Starting effort | 23.7 kN |
Calculated values
| Property | Hungarian State Railways MIaRemove |
|---|---|
| Factor of adhesion | 1 : 3.99 |
| Heating Surface Equivalent | 62.7 m² |
| Cylinder volume/HSE | 1 : 485.40 |
| Adhesive weight/Total | 1 : 2.01 |
| Tractive force/Heating surface | 1 : 16.25 |
| Grate area/Heating surface | 1 : 39.10 |
| Firebox/Tube surface | 1 : 3.67 |
| Total/Superheater | 1 : 3.36 |
