North-East Railway E 2/2
The Nordostbahn grouped together a total of 32 two-axle tank locomotives under the name E 2/2. They were built between 1865 and 1876 and differed significantly in some respects. The first four locomotives were designed by machine master Krauss and built in the NOB's own workshops. A significantly heavier variant was also built four times under Maey. A ninth machine was created by rebuilding a D 1/3, which was not officially designated as E 2/2. Finally, the SLM and the Maschinenfabrik Esslingen delivered a further 24 locomotives, which were again heavier and based on the C 2/2.
The E 2/2 was not only used in shunting service, but also on branch lines in passenger and freight service. The first four were scrapped in 1882. All others received a new boiler between 1884 and 1906. The locomotives which remained in 1916 were sold to the Army Administration of Austria-Hungary in 1906 and from there came to the FS and MÁV.
Technical data
General
| Property | Krauss variant | Maey variant | Esslingen, SLM variant |
|---|---|---|---|
| Built | 1865 | 1868 | 1873-1876 |
| Manufacturers | NOB | Esslingen, SLM | |
| Wheel arrangement | 0-4-0WT (Four-coupled) | ||
| Gauge | 1,435 mm (Standard gauge) | ||
Dimensions and weights
| Property | Krauss variant | Maey variant | Esslingen, SLM variant |
|---|---|---|---|
| Length | 6.57 m | 7.37 m | 7.62 m |
| Wheelbase | 2.10 m | 2.50 m | 2.70 m |
| Service mass | 16.9 t | 23 t | 25.6 t |
| Adhesion mass | 16.9 t | 23 t | 25.6 t |
| Rigid wheelbase | 2.10 m | 2.50 m | 2.70 m |
| Water capacity | 1,500 l | 2,500 l | 2,400 l |
| Fuel capacity | 0.8 t (coal) | 1 t (coal) | 1.1 t (coal) |
Boiler
| Property | Krauss variant | Maey variant | Esslingen, SLM variant |
|---|---|---|---|
| Grate area | 0.5 m² | 1.1 m² | |
| Evaporative heating surface | 38.5 m² | 68.6 m² | 67.7 m² |
| Total heating surface | 38.5 m² | 68.6 m² | 67.7 m² |
Power plant
| Property | Krauss variant | Maey variant | Esslingen, SLM variant |
|---|---|---|---|
| Driver diameter | 1,220 mm | 1,390 mm | |
| Boiler pressure | 10 bar | 11 bar | |
| Expansion type | simple expansion | ||
| Cylinders | two, 252 x 540 mm | two, 320 x 600 mm | |
Power
| Property | Krauss variant | Maey variant | Esslingen, SLM variant |
|---|---|---|---|
| Power source | steam | ||
| Indicated power | 75 kW (102 PS) | ||
| Top speed | 45 km/h | 55 km/h | |
| Starting effort | 23.9 kN | 41.3 kN | |
| Estimated power | 175 kW (238 PS) | 170 kW (231 PS) | |
Calculated values
| Property | Krauss variant | Maey variant | Esslingen, SLM variant |
|---|---|---|---|
| Factor of adhesion | 1 : 6.94 | 1 : 5.46 | 1 : 6.08 |
| Optimal speed | 19 km/h | 26 km/h | |
| Power-to-weight ratio | 4.4 kW/t | 7.6 kW/t | 6.6 kW/t |
| Adhesive weight/Total | 1 : 1.00 | ||
| Tractive force/Heating surface | 1 : 12.96 | 1 : 12.58 | 1 : 12.75 |
| Grate area/Heating surface | 1 : 77.00 | 1 : 62.36 | 1 : 61.55 |
