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North Eastern class D
The North Eastern Railway's class D was developed by Vincent Raven for rural passenger trains. In order to achieve equally good running characteristics in both directions of travel, he chose a tank locomotive with a 4...
General
| Property | North Eastern class DRemove |
|---|---|
| Built | 1913, 1920-1922 |
| Manufacturers | Darlington |
| Wheel arrangement | 4-4-4T (Reading) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | North Eastern class DRemove |
|---|---|
| Wheelbase | 10.52 m |
| Rigid wheelbase | 2.44 m |
| Service weight | 86.1 t |
| Adhesive weight | 40.4 t |
| Axle load | 20.2 t |
| Water capacity | 9,093 l |
| Fuel capacity | 4.1 t (coal) |
Boiler
| Property | North Eastern class DRemove |
|---|---|
| Grate area | 2.137 m² |
| Firebox surface | 11.52 m² |
| Tube heating surface | 86.864 m² |
| Evaporative heating surface | 98.384 m² |
| Superheater surface | 25.363 m² |
| Total heating surface | 123.7 m² |
Power plant
| Property | North Eastern class DRemove |
|---|---|
| Driver diameter | 1,753 mm |
| Boiler pressure | 11 bar |
| Expansion type | simple expansion |
| Cylinders | three, 419 x 660 mm |
Power
| Property | North Eastern class DRemove |
|---|---|
| Power source | steam |
| Estimated power | 634 kW (862 PS) |
| Starting effort | 93.1 kN |
Calculated values
| Property | North Eastern class DRemove |
|---|---|
| Factor of adhesion | 1 : 4.26 |
| Optimal speed | 42 km/h |
| Power-to-weight ratio | 7.4 kW/t |
| Heating Surface Equivalent | 206.7 m² |
| Cylinder volume/HSE | 1 : 1,322.18 |
| Adhesive weight/Total | 1 : 2.13 |
| Tractive force/Heating surface | 1 : 15.71 |
| Grate area/Heating surface | 1 : 57.91 |
| Firebox/Tube surface | 1 : 7.54 |
| Total/Superheater | 1 : 3.88 |
