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London & North Western class G1
In 1912, a single LNWR class G locomotive was fitted with a superheater and piston valves to evaluate if superheating was of use for goods service. As the outcome was positive, it was decided to rebuild further locomo...
General
| Property | London & North Western class G1Remove |
|---|---|
| Built | 1912-1934 |
| Manufacturers | Crewe |
| Wheel arrangement | 0-8-0 (Eight-coupled) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | London & North Western class G1Remove |
|---|---|
| Wheelbase | 5.26 m |
| Rigid wheelbase | 5.26 m |
| Service weight | 62 t |
| Adhesive weight | 62 t |
| Axle load | 17.8 t |
| Total weight | 101.9 t |
| Water capacity | 13,639 l |
| Fuel capacity | 5.3 t (coal) |
Boiler
| Property | London & North Western class G1Remove |
|---|---|
| Grate area | 2.193 m² |
| Firebox surface | 13.629 m² |
| Tube heating surface | 164.624 m² |
| Evaporative heating surface | 178.253 m² |
| Superheater surface | 35.303 m² |
| Total heating surface | 213.6 m² |
Power plant
| Property | London & North Western class G1Remove |
|---|---|
| Driver diameter | 1,359 mm |
| Boiler pressure | 11 bar |
| Expansion type | simple expansion |
| Cylinders | two, 521 x 610 mm |
Power
| Property | London & North Western class G1Remove |
|---|---|
| Power source | steam |
| Estimated power | 727 kW (988 PS) |
| Starting effort | 114.0 kN |
Calculated values
| Property | London & North Western class G1Remove |
|---|---|
| Factor of adhesion | 1 : 5.33 |
| Optimal speed | 39 km/h |
| Power-to-weight ratio | 11.7 kW/t |
| Heating Surface Equivalent | 317.0 m² |
| Cylinder volume/HSE | 1 : 818.98 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 11.15 |
| Grate area/Heating surface | 1 : 97.38 |
| Firebox/Tube surface | 1 : 12.08 |
| Total/Superheater | 1 : 5.05 |
