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North-East Railway D 2/2
In 1861, Escher Wyss delivered two freight locomotives of the later type D 2/2 to the North East Railway. Two years later, Esslingen delivered four more of the same design to the NOB's subsidiary Zurich-Zug-Lucerne Ra...
General
| Property | North-East Railway D 2/2Remove |
|---|---|
| Built | 1861, 1863 |
| Manufacturers | Escher Wyss, Esslingen |
| Wheel arrangement | 0-4-6T (Engerth) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | North-East Railway D 2/2Remove |
|---|---|
| Length | 12.77 m |
| Wheelbase | 8.09 m |
| Rigid wheelbase | 2.44 m |
| Empty weight | 36.5 t |
| Service weight | 52 t |
| Adhesive weight | 26 t |
| Axle load | 13 t |
| Water capacity | 9,300 l |
| Fuel capacity | 2.5 t (coal) |
Boiler
| Property | North-East Railway D 2/2Remove |
|---|---|
| Grate area | 1.4 m² |
| Evaporative heating surface | 106.2 m² |
| Total heating surface | 106.2 m² |
Power plant
| Property | North-East Railway D 2/2Remove |
|---|---|
| Driver diameter | 1,370 mm |
| Boiler pressure | 10 bar |
| Expansion type | simple expansion |
| Cylinders | two, 431 x 686 mm |
Power
| Property | North-East Railway D 2/2Remove |
|---|---|
| Power source | steam |
| Estimated power | 260 kW (354 PS) |
| Top speed | 40 km/h |
| Starting effort | 79.1 kN |
Calculated values
| Property | North-East Railway D 2/2Remove |
|---|---|
| Factor of adhesion | 1 : 3.23 |
| Optimal speed | 21 km/h |
| Power-to-weight ratio | 5.0 kW/t |
| Adhesive weight/Total | 1 : 2.00 |
| Tractive force/Heating surface | 1 : 15.55 |
| Grate area/Heating surface | 1 : 75.86 |
