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London & South Western class H15
When the London and South Western Railway urgently needed locomotives for heavy freight trains, chief engineer Robert Urie designed the H15 class as a 4-6-0 locomotive with six feet diameter coupled wheels . The same ...
General
| Property | London & South Western class H15 Schmidt superheater |
|---|---|
| Built | 1914 |
| Manufacturers | Eastleigh |
| Wheel arrangement | 4-6-0 (Ten-wheeler) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | London & South Western class H15 Schmidt superheater |
|---|---|
| Length | 19.98 m |
| Wheelbase | 8.12 m |
| Rigid wheelbase | 4.19 m |
| Total wheelbase | 17.41 m |
| Service weight | 80.4 t |
| Adhesive weight | 59.5 t |
| Total weight | 138.8 t |
| Water capacity | 22,731 l |
| Fuel capacity | 5.1 t (coal) |
Boiler
| Property | London & South Western class H15 Schmidt superheater |
|---|---|
| Grate area | 2.787 m² |
| Firebox surface | 15.515 m² |
| Tube heating surface | 163.417 m² |
| Evaporative heating surface | 178.931 m² |
| Superheater surface | 36.604 m² |
| Total heating surface | 215.5 m² |
Power plant
| Property | London & South Western class H15 Schmidt superheater |
|---|---|
| Driver diameter | 1,829 mm |
| Boiler pressure | 12.4 bar |
| Expansion type | simple expansion |
| Cylinders | two, 533 x 711 mm |
Power
| Property | London & South Western class H15 Schmidt superheater |
|---|---|
| Power source | steam |
| Estimated power | 1,063 kW (1,445 PS) |
| Starting effort | 116.7 kN |
Calculated values
| Property | London & South Western class H15 Schmidt superheater |
|---|---|
| Factor of adhesion | 1 : 5.00 |
| Optimal speed | 56 km/h |
| Power-to-weight ratio | 13.2 kW/t |
| Heating Surface Equivalent | 329.7 m² |
| Cylinder volume/HSE | 1 : 964.00 |
| Adhesive weight/Total | 1 : 1.35 |
| Tractive force/Heating surface | 1 : 11.31 |
| Grate area/Heating surface | 1 : 77.34 |
| Firebox/Tube surface | 1 : 10.53 |
| Total/Superheater | 1 : 4.89 |
