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North-East Railway A 2/4
Starting in 1898, the Swiss North Eastern Railway got 25 4-4-0 express locomotives from the SLM. They were called A 2/4 and were two-cylinder compounds . Being the only inside-cylinder locomotives of the NOB, their de...
| North-East Railway A 2/4Remove | |
|---|---|
| Variant | 1898 variant |
| Built | 1898-1096 |
| Manufacturers | SLM |
| Wheel arrangement | 2B |
| Gauge | 1435 mm |
| Length | 15819 mm |
| Service mass | |
| Top speed | |
| Power | |
| Engine |
General
| Property | North-East Railway A 2/41898 variant |
|---|---|
| Built | 1898-1096 |
| Manufacturers | SLM |
| Wheel arrangement | 4-4-0 (American) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | North-East Railway A 2/41898 variant |
|---|---|
| Length | 15.82 m |
| Wheelbase | 7.20 m |
| Empty mass | 27.3 t |
| Adhesion mass | 31.7 t |
| Total mass | 81.3 t |
| Rigid wheelbase | 2.60 m |
| Water capacity | 12,000 l |
| Fuel capacity | 6 t (coal) |
Boiler
| Property | North-East Railway A 2/41898 variant |
|---|---|
| Grate area | 2.2 m² |
| Firebox surface | 10.5 m² |
| Tube heating surface | 128.6 m² |
| Evaporative heating surface | 139.1 m² |
| Total heating surface | 139.1 m² |
Power plant
| Property | North-East Railway A 2/41898 variant |
|---|---|
| Driver diameter | 1,830 mm |
| Boiler pressure | 13 bar |
| Expansion type | compound |
| Cylinders | two, HP: 460 x 660 mm and LP: 680 x 660 mm |
Power
| Property | North-East Railway A 2/41898 variant |
|---|---|
| Power source | steam |
| Estimated power | 550 kW (748 PS) |
| Starting effort | 57.9 kN |
| Starting effort simple | 69.4 kN |
Calculated values
| Property | North-East Railway A 2/41898 variant |
|---|---|
| Factor of adhesion | 1 : 5.38 |
| Optimal speed | 58 km/h |
| Power-to-weight ratio | 6.8 kW/t |
| Heating Surface Equivalent | 191.6 m² |
| Cylinder volume/HSE | 1 : 1,197.97 |
| Tractive force/Heating surface | 1 : 8.69 |
| Grate area/Heating surface | 1 : 63.23 |
| Firebox/Tube surface | 1 : 12.25 |
