Southern State Railway “Nabresina” to “Prosecco”
Austrian Southern Railway class 22 (old) and class 28
The third type of six-coupled locomotives of the Engerth type on the Southern State Railway consisted of eight which were delivered in 1857 by the Esslingen machine works. They had the same wheel diameter as the second type, but were slightly heavier. From 1858 they became the 22 and from 1864 class 28 on the Southern Railway. Six of the eight locomotives in this class were rebuilt between 1869 and 1886 into tender locomotives with a 0-6-0 wheel arrangement. The boiler was pushed forward to distribute the weight evenly over the axles. These six locomotives all remained in service until at least 1897, the last being the last rebuilt No. 665 “Reifnitz”, which was retired in 1907. The two locomotives which had not been rebuilt initially remained in use. However, the No. 660 “Lipitta” was retired in 1885 and the No. 664 “Prosecco” in 1888.
Technical data
General
- Built
- 1857
- Manufacturers
- Esslingen
- Wheel arrangement
- 0-6-4T (Engerth)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Length
- 11.79 m
- Empty mass
- 45.7 t
- Service mass
- 56 t
- Adhesion mass
- 35.9 t
- Axle load
- 12.7 t
- Water capacity
- 6,300 l
- Fuel capacity
- 2.5 t (wood)
Boiler
- Grate area
- 1.43 m²
- Firebox surface
- 8 m²
- Tube heating surface
- 132 m²
- Evaporative heating surface
- 140 m²
- Total heating surface
- 140.0 m²
Power plant
- Driver diameter
- 1,280 mm
- Boiler pressure
- 8 bar
- Expansion type
- simple expansion
- Cylinders
- two, 481 x 640 mm
Power
- Power source
- steam
- Estimated power
- 250 kW (340 PS)
- Starting effort
- 78.7 kN
Calculated values
- Factor of adhesion
- 1 : 4.47
- Optimal speed
- 19 km/h
- Power-to-weight ratio
- 4.5 kW/t
- Heating Surface Equivalent
- 180.0 m²
- Cylinder volume/HSE
- 1 : 1,292.16
- Adhesive weight/Total
- 1 : 1.56
- Tractive force/Heating surface
- 1 : 11.73
- Grate area/Heating surface
- 1 : 97.90
- Firebox/Tube surface
- 1 : 16.50