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Emperor Ferdinand Northern Railway VIIIa and VIIIb, later IVc
In 1856 and 1857, the KFNB got 24 2-4-0 freight locomotives from the StEG factory which got the names “Sphinx” to “Pilades”. They had outside cylinders and driving wheels of 1,264 mm (4 ft 1 3/4 in). In the new scheme...
General
| Property | Emperor Ferdinand Northern Railway VIIIa and VIIIb, later IVc new boiler |
|---|---|
| Built | 1869 |
| Manufacturers | StEG |
| Wheel arrangement | 2-4-0 (Porter) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Emperor Ferdinand Northern Railway VIIIa and VIIIb, later IVc new boiler |
|---|---|
| Length | 13.90 m |
| Length loco | 8.17 m |
| Wheelbase | 3.53 m |
| Rigid wheelbase | 3.53 m |
| Service weight | 26.7 t |
| Adhesive weight | 20.2 t |
| Total weight | 52.1 t |
| Water capacity | 7,900 l |
| Fuel capacity | 4.2 t (coal) |
Boiler
| Property | Emperor Ferdinand Northern Railway VIIIa and VIIIb, later IVc new boiler |
|---|---|
| Grate area | 1.5 m² |
| Firebox surface | 7.5 m² |
| Tube heating surface | 114.4 m² |
| Evaporative heating surface | 121.9 m² |
| Total heating surface | 121.9 m² |
Power plant
| Property | Emperor Ferdinand Northern Railway VIIIa and VIIIb, later IVc new boiler |
|---|---|
| Driver diameter | 1,264 mm |
| Boiler pressure | 6.5 bar |
| Expansion type | simple expansion |
| Cylinders | two, 421 x 632 mm |
Power
| Property | Emperor Ferdinand Northern Railway VIIIa and VIIIb, later IVc new boiler |
|---|---|
| Power source | steam |
| Estimated power | 220 kW (299 PS) |
| Starting effort | 49.0 kN |
Calculated values
| Property | Emperor Ferdinand Northern Railway VIIIa and VIIIb, later IVc new boiler |
|---|---|
| Factor of adhesion | 1 : 4.05 |
| Optimal speed | 27 km/h |
| Power-to-weight ratio | 8.2 kW/t |
| Heating Surface Equivalent | 159.4 m² |
| Cylinder volume/HSE | 1 : 1,103.86 |
| Adhesive weight/Total | 1 : 1.32 |
| Tractive force/Heating surface | 1 : 8.39 |
| Grate area/Heating surface | 1 : 81.27 |
| Firebox/Tube surface | 1 : 15.25 |
