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Emperor Ferdinand Northern Railway IVa, later Ia
![“Rakete[h]II[/h]” in its original state](/data/photos/KFNB_Ia_2.jpg)
In 1862, Sigl manufactured five 2-2-2 express locomotives for the KFNB. They were named “Rakete[h]II[/h]”, “Blitz[h]II[/h]”, “Komet[h]II[/h]”, “Vesta[h]II[/h]” and “Neptune[h]II[/h]”. They were initially classified as...
General
| Property | Emperor Ferdinand Northern Railway IVa, later Ia as built |
|---|---|
| Built | 1862 |
| Manufacturers | Wiener Neustadt |
| Wheel arrangement | 2-2-2 (Jenny Lind) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Emperor Ferdinand Northern Railway IVa, later Ia as built |
|---|---|
| Length loco | 7.65 m |
| Wheelbase | 4.58 m |
| Rigid wheelbase | 4.58 m |
| Empty weight | 28 t |
| Service weight | 31.5 t |
| Total weight | 55.5 t |
| Water capacity | 9,600 l |
| Fuel capacity | 6 t (coal) |
Boiler
| Property | Emperor Ferdinand Northern Railway IVa, later Ia as built |
|---|---|
| Grate area | 1.2 m² |
| Firebox surface | 9 m² |
| Tube heating surface | 107.9 m² |
| Evaporative heating surface | 116.9 m² |
| Total heating surface | 116.9 m² |
Power plant
| Property | Emperor Ferdinand Northern Railway IVa, later Ia as built |
|---|---|
| Driver diameter | 1,976 mm |
| Boiler pressure | 6.5 bar |
| Expansion type | simple expansion |
| Cylinders | two, 395 x 632 mm |
Power
| Property | Emperor Ferdinand Northern Railway IVa, later Ia as built |
|---|---|
| Power source | steam |
| Estimated power | 225 kW (306 PS) |
| Starting effort | 27.6 kN |
Calculated values
| Property | Emperor Ferdinand Northern Railway IVa, later Ia as built |
|---|---|
| Optimal speed | 50 km/h |
| Power-to-weight ratio | 7.1 kW/t |
| Heating Surface Equivalent | 161.9 m² |
| Cylinder volume/HSE | 1 : 956.72 |
| Tractive force/Heating surface | 1 : 4.93 |
| Grate area/Heating surface | 1 : 97.42 |
| Firebox/Tube surface | 1 : 11.99 |
