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London & North Western Samson class
The Samson class was the first class of passenger locomotives of the LNWR with coupled driving axles . It had driving wheels with a diameter of 6 ft 3 in (1,905 mm) and was officially designed for mixed traffic. Since...
General
| Property | London & North Western Samson classRemove |
|---|---|
| Built | 1863-1879 |
| Manufacturers | Crewe |
| Wheel arrangement | 2-4-0 (Porter) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | London & North Western Samson classRemove |
|---|---|
| Wheelbase | 4.45 m |
| Rigid wheelbase | 4.45 m |
| Service weight | 26.5 t |
| Water capacity | 6,818 l |
Boiler
| Property | London & North Western Samson classRemove |
|---|---|
| Evaporative heating surface | 100.614 m² |
| Total heating surface | 100.6 m² |
Power plant
| Property | London & North Western Samson classRemove |
|---|---|
| Driver diameter | 1,905 mm |
| Boiler pressure | 9.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 406 x 508 mm |
Power
| Property | London & North Western Samson classRemove |
|---|---|
| Power source | steam |
| Estimated power | 298 kW (405 PS) |
| Starting effort | 36.1 kN |
Calculated values
| Property | London & North Western Samson classRemove |
|---|---|
| Optimal speed | 50 km/h |
| Power-to-weight ratio | 11.2 kW/t |
| Tractive force/Heating surface | 1 : 7.50 |
