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Austrian Federal Railways (BBÖ) class 478
The class 478 was a heavy shunter introduced in 1926 to replace old tender locomotives which had previously been used for shunting. It was based on the class 378 which had the wheel arrangement 2-8-2T, but did not hav...
| Austrian Federal Railways (BBÖ) class 478Remove | |
|---|---|
| Variant | Standard |
| Built | 1926-1927 |
| Manufacturers | Floridsdorf;Wiener Neustadt;StEG |
| Wheel arrangement | D t |
| Gauge | 1435 mm |
| Length | 11170 mm |
| Service mass | 64000 kg |
| Top speed | 40 km/h |
| Power | |
| Engine |
General
| Property | Austrian Federal Railways (BBÖ) class 478 Standard Remove |
|---|---|
| Built | 1926-1927 |
| Manufacturers | Floridsdorf, Wiener Neustadt, StEG |
| Wheel arrangement | 0-8-0T (Eight-coupled) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Austrian Federal Railways (BBÖ) class 478 Standard Remove |
|---|---|
| Length | 11.17 m |
| Wheelbase | 4.20 m |
| Service mass | 64 t |
| Adhesion mass | 64 t |
| Rigid wheelbase | 4.20 m |
| Axle load | 16 t |
| Water capacity | 10,000 l |
| Fuel capacity | 2.5 t (coal) |
Boiler
| Property | Austrian Federal Railways (BBÖ) class 478 Standard Remove |
|---|---|
| Grate area | 2 m² |
| Firebox surface | 9.7 m² |
| Tube heating surface | 101.1 m² |
| Evaporative heating surface | 110.8 m² |
| Superheater surface | 30.25 m² |
| Total heating surface | 141.1 m² |
Power plant
| Property | Austrian Federal Railways (BBÖ) class 478 Standard Remove |
|---|---|
| Driver diameter | 1,140 mm |
| Boiler pressure | 14 bar |
| Expansion type | simple expansion |
| Cylinders | two, 530 x 570 mm |
Power
| Property | Austrian Federal Railways (BBÖ) class 478 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 675 kW (918 PS) |
| Top speed | 40 km/h |
| Starting effort | 167.1 kN |
Calculated values
| Property | Austrian Federal Railways (BBÖ) class 478 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 3.76 |
| Optimal speed | 24 km/h |
| Power-to-weight ratio | 10.5 kW/t |
| Heating Surface Equivalent | 219.8 m² |
| Cylinder volume/HSE | 1 : 1,144.24 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 24.75 |
| Grate area/Heating surface | 1 : 70.53 |
| Firebox/Tube surface | 1 : 10.42 |
| Total/Superheater | 1 : 3.66 |
