Compare locomotives
Add a locomotive
London & North Western Precedent class
The LNWR Precedent class consisted of 70 2-4-0 express locomotives with a driver diameter of 6 ft 6 in or 1,981 mm, built between 1874 and 1882. As usual, they had inside cylinders with a common steam chest . Francis ...
| London & North Western Precedent classRemove | |
|---|---|
| Variant | Standard |
| Built | 1874-1882 |
| Manufacturers | Crewe |
| Wheel arrangement | 1B |
| Gauge | 1435 mm |
| Length | |
| Service mass | 33276 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | London & North Western Precedent class Standard Remove |
|---|---|
| Built | 1874-1882 |
| Manufacturers | Crewe |
| Wheel arrangement | 2-4-0 (Porter) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | London & North Western Precedent class Standard Remove |
|---|---|
| Wheelbase | 4.78 m |
| Service mass | 33.3 t |
| Adhesion mass | 22.6 t |
| Total mass | 58.7 t |
| Rigid wheelbase | 4.78 m |
| Axle load | 11.7 t |
| Water capacity | 8,184 l |
| Fuel capacity | 4.1 t (coal) |
Boiler
| Property | London & North Western Precedent class Standard Remove |
|---|---|
| Grate area | 1.589 m² |
| Firebox surface | 9.615 m² |
| Tube heating surface | 91.092 m² |
| Evaporative heating surface | 100.707 m² |
| Total heating surface | 100.7 m² |
Power plant
| Property | London & North Western Precedent class Standard Remove |
|---|---|
| Driver diameter | 2,007 mm |
| Boiler pressure | 9.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 432 x 610 mm |
Power
| Property | London & North Western Precedent class Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 298 kW (405 PS) |
| Starting effort | 46.5 kN |
Calculated values
| Property | London & North Western Precedent class Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.76 |
| Optimal speed | 39 km/h |
| Power-to-weight ratio | 9.0 kW/t |
| Heating Surface Equivalent | 148.8 m² |
| Cylinder volume/HSE | 1 : 1,200.00 |
| Adhesive weight/Total | 1 : 1.48 |
| Tractive force/Heating surface | 1 : 9.64 |
| Grate area/Heating surface | 1 : 63.38 |
| Firebox/Tube surface | 1 : 9.47 |
