Imperial-Royal Field Railways No. 6
Austria-Hungary 1902 1 produced
Number 6 of the k.u.k. Feldbahn (Imperial and Royal Field Railway) was one of five prototypes from different manufacturers which were tested at the beginning of the 20th century. It was built by MÁVAG of Budapest in 1902 and was the only one of the five that had an additional tender. The first of four driving axles was a Klien-Lindner axle that could be adjusted radially. The second and third axles were special in that they had outside wheel flanges, which caused problems when running over switches. In the end, this locomotive type was not produced in series and the prototype came to the Beszterce forest railway in 1918.
Technical data
General
- Built
- 1902
- Manufacturers
- MÁVAG
- Wheel arrangement
- 0-8-0 (Eight-coupled)
- Gauge
- 700 mm
Dimensions and weights
- Length
- 5.14 m
- Wheelbase
- 2.45 m
- Empty mass
- 10.9 t
- Service mass
- 12.8 t
- Adhesion mass
- 12.8 t
- Rigid wheelbase
- 2.45 m
- Axle load
- 3.2 t
- Water capacity
- 2,000 l
- Fuel capacity
- 0.6 t (coal)
Boiler
- Grate area
- 0.52 m²
- Firebox surface
- 2.5 m²
- Tube heating surface
- 19.63 m²
- Evaporative heating surface
- 22.13 m²
- Total heating surface
- 22.1 m²
Power plant
- Driver diameter
- 650 mm
- Boiler pressure
- 14 bar
- Expansion type
- simple expansion
- Cylinders
- two, 259 x 300 mm
Power
- Power source
- steam
- Estimated power
- 75 kW (102 PS)
- Top speed
- 24 km/h
- Starting effort
- 36.8 kN
Calculated values
- Factor of adhesion
- 1 : 3.41
- Optimal speed
- 13 km/h
- Power-to-weight ratio
- 5.9 kW/t
- Heating Surface Equivalent
- 34.6 m²
- Cylinder volume/HSE
- 1 : 912.83
- Adhesive weight/Total
- 1 : 1.00
- Tractive force/Heating surface
- 1 : 34.77
- Grate area/Heating surface
- 1 : 42.56
- Firebox/Tube surface
- 1 : 7.85
