Imperial-Royal State Railways and Austrian Southern Railway class 206
Czechoslovak State Railways class 265.0, Polish State Railways Pd14, Italian State Railway class 555, and Hungarian State Railways class 225.3
Austria-Hungary 1903 89 produced
The next step in the development of the 4-4-0 express locomotives after the classes 6 and 106 was the 206. Gölsdorf raised the position of the boiler in order to obtain a larger firebox heating surface. The result was a continuous output of 940 hp at 90 km/h. For reasons of visual appearance, the second steam dome with connecting pipe was omitted and the cab was designed with curved lines. The kkStB procured 70 machines and the southern railway 19 more. After the First World War, double-digit numbers were also in use in Czechoslovakia, Poland and Italy.
Technical data
General
- Built
- 1903-1907
- Manufacturers
- Wiener Neustadt, BMMF, Floridsdorf, StEG, MÁVAG
- Wheel arrangement
- 4-4-0 (American)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Length
- 16.43 m
- Wheelbase
- 7.30 m
- Total wheelbase
- 12.99 m
- Service mass
- 54.2 t
- Adhesion mass
- 29 t
- Rigid wheelbase
- 2.80 m
- Axle load
- 14.5 t
- Water capacity
- 16,800 l
- Fuel capacity
- 5.8 t (coal)
Boiler
- Grate area
- 3 m²
- Firebox surface
- 12 m²
- Tube heating surface
- 123 m²
- Evaporative heating surface
- 135 m²
- Total heating surface
- 135.0 m²
Power plant
- Driver diameter
- 2,140 mm
- Boiler pressure
- 13 bar
- Expansion type
- compound
- Cylinders
- two, HP: 500 x 680 mm and LP: 760 x 680 mm
Power
- Power source
- steam
- Estimated power
- 650 kW (884 PS)
- Top speed
- 90 km/h
- Starting effort
- 61.3 kN
- Starting effort simple
- 73.5 kN
Calculated values
- Factor of adhesion
- 1 : 4.64
- Optimal speed
- 64 km/h
- Power-to-weight ratio
- 12.0 kW/t
- Heating Surface Equivalent
- 195.0 m²
- Cylinder volume/HSE
- 1 : 1,475.68
- Adhesive weight/Total
- 1 : 1.87
- Tractive force/Heating surface
- 1 : 9.48
- Grate area/Heating surface
- 1 : 45.00
- Firebox/Tube surface
- 1 : 10.25
