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Great Eastern class M15
Between 1884 and 1886, Worsdell had 40 tank locomotives built for the Great Eastern Railway for passenger service, which were called class M15. This first batch got Joy valve gear and due to their high consumption, th...
General
| Property | Great Eastern class M15 1903 variant |
|---|---|
| Built | 1903-1909 |
| Manufacturers | Stratford |
| Wheel arrangement | 2-4-2T (Columbia) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Great Eastern class M15 1903 variant |
|---|---|
| Length | 10.62 m |
| Wheelbase | 7.01 m |
| Rigid wheelbase | 7.01 m |
| Service weight | 52.4 t |
| Adhesive weight | 27 t |
| Axle load | 15.1 t |
| Water capacity | 5,455 l |
| Fuel capacity | 2.3 t (coal) |
Boiler
| Property | Great Eastern class M15 1903 variant |
|---|---|
| Grate area | 1.421 m² |
| Firebox surface | 9.142 m² |
| Tube heating surface | 96.118 m² |
| Evaporative heating surface | 105.259 m² |
| Total heating surface | 105.3 m² |
Power plant
| Property | Great Eastern class M15 1903 variant |
|---|---|
| Driver diameter | 1,626 mm |
| Boiler pressure | 11 bar |
| Expansion type | simple expansion |
| Cylinders | two, 444 x 610 mm |
Power
| Property | Great Eastern class M15 1903 variant |
|---|---|
| Power source | steam |
| Estimated power | 373 kW (507 PS) |
| Starting effort | 69.5 kN |
Calculated values
| Property | Great Eastern class M15 1903 variant |
|---|---|
| Factor of adhesion | 1 : 3.81 |
| Optimal speed | 32 km/h |
| Power-to-weight ratio | 7.1 kW/t |
| Heating Surface Equivalent | 151.0 m² |
| Cylinder volume/HSE | 1 : 1,253.19 |
| Adhesive weight/Total | 1 : 1.94 |
| Tractive force/Heating surface | 1 : 13.79 |
| Grate area/Heating surface | 1 : 74.07 |
| Firebox/Tube surface | 1 : 10.51 |
