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Hungarian State Railways and Košice–Bohumín Railway Ia
After the express locomotives with the 2-4-0 wheel arrangement could not reach sufficient speeds and the first 4-4-0 locomotives procured could not convince either, the construction of the locomotives later designated...
| Hungarian State Railways and Košice–Bohumín Railway IaRemove | |
|---|---|
| Variant | 1881 variant |
| Built | 1881-1885 |
| Manufacturers | MÁVAG;Wiener Neustadt |
| Wheel arrangement | 2B |
| Gauge | 1435 mm |
| Length | 15335 mm |
| Service mass | 49583 kg |
| Top speed | 90 km/h |
| Power | |
| Engine |
General
| Property | Hungarian State Railways and Košice–Bohumín Railway Ia1881 variant |
|---|---|
| Built | 1881-1885 |
| Manufacturers | MÁVAG, Wiener Neustadt |
| Wheel arrangement | 4-4-0 (American) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Hungarian State Railways and Košice–Bohumín Railway Ia1881 variant |
|---|---|
| Length | 15.34 m |
| Wheelbase | 5.90 m |
| Service mass | 49.6 t |
| Adhesion mass | 28.8 t |
| Total mass | 81 t |
| Rigid wheelbase | 2.05 m |
| Axle load | 14.4 t |
| Water capacity | 12,500 l |
| Fuel capacity | 8.8 t (coal) |
Boiler
| Property | Hungarian State Railways and Košice–Bohumín Railway Ia1881 variant |
|---|---|
| Grate area | 2.1 m² |
| Evaporative heating surface | 135.59 m² |
| Total heating surface | 135.6 m² |
Power plant
| Property | Hungarian State Railways and Košice–Bohumín Railway Ia1881 variant |
|---|---|
| Driver diameter | 1,826 mm |
| Boiler pressure | 10.5 bar |
| Expansion type | simple expansion |
| Cylinders | two, 450 x 650 mm |
Power
| Property | Hungarian State Railways and Košice–Bohumín Railway Ia1881 variant |
|---|---|
| Power source | steam |
| Indicated power | 441 kW (600 PS) |
| Top speed | 90 km/h |
| Starting effort | 64.3 kN |
Calculated values
| Property | Hungarian State Railways and Košice–Bohumín Railway Ia1881 variant |
|---|---|
| Factor of adhesion | 1 : 4.38 |
| Optimal speed | 42 km/h |
| Power-to-weight ratio | 8.9 kW/t |
| Adhesive weight/Total | 1 : 1.72 |
| Tractive force/Heating surface | 1 : 9.91 |
| Grate area/Heating surface | 1 : 64.57 |
