German Reichsbahn class 562-8
Austrian Federal Railways class 656 and Polish State Railways Tr5
The class 562-8 was a rebuild of the Prussian G 81, which had received a bissel axle in front of the coupled axles. On the one hand, this measure served to increase the permitted speed and also reduced the axle load to just over 16 tons. Although the G 81 was powerful, it could not achieve smooth running due to the missing carrying axle and the large overhangs. At the same time as the bissel axle was added, the boiler was moved slightly forward for better weight distribution and was also placed higher. In addition, ballast weights were attached to obtain additional traction due to the now very low axle load of the first two coupled axles.
A total of 691 were rebuilt in this form. They could now run 70 km/h and were even used in the following decades to haul passenger trains in local traffic. Of the locomotives which were still in existence after the Second World War, smaller numbers were in Poland, Austria and the Soviet occupation zone of Germany, where they were also used everywhere. The Reichsbahn in the GDR was the last to use them until 1970.
However, most of the locomotives were in the three western zones after the war. A total of 410 locomotives were counted in varying conditions, of which the newly founded Bundesbahn took over 368. They were withdrawn by 1968, with a new number being only provided for the last survivor, but no longer applied.
Technical data
General
- Built
- 1932-1941
- Wheel arrangement
- 2-8-0 (Consolidation)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Length
- 18.30 m
- Wheelbase
- 7.20 m
- Empty mass
- 68.9 t
- Service mass
- 74.6 t
- Adhesion mass
- 64.1 t
- Total mass
- 120.1 t
- Rigid wheelbase
- 4.70 m
- Axle load
- 16.2 t
- Water capacity
- 16,500 l
- Fuel capacity
- 7 t (coal)
Boiler
- Grate area
- 2.66 m²
- Firebox surface
- 13.89 m²
- Tube heating surface
- 132.15 m²
- Evaporative heating surface
- 146.04 m²
- Superheater surface
- 51.88 m²
- Total heating surface
- 197.9 m²
Power plant
- Driver diameter
- 1,350 mm
- Boiler pressure
- 14 bar
- Expansion type
- simple expansion
- Cylinders
- two, 600 x 660 mm
Power
- Power source
- steam
- Indicated power
- 927 kW
- Top speed
- 70 km/h
- Starting effort
- 209.4 kN
Calculated values
- Factor of adhesion
- 1 : 3.00
- Optimal speed
- 27 km/h
- Power-to-weight ratio
- 12.4 kW/t
- Heating Surface Equivalent
- 319.3 m²
- Cylinder volume/HSE
- 1 : 1,169.06
- Adhesive weight/Total
- 1 : 1.16
- Tractive force/Heating surface
- 1 : 22.10
- Grate area/Heating surface
- 1 : 74.41
- Firebox/Tube surface
- 1 : 9.51
- Total/Superheater
- 1 : 2.81