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Great Northern (UK) classes J5 and J4
The design of the J5 goes back to the design of Patrick Stirling's “Standard Goods” which were built from 1867 and are known as the class J7. As a direct development, the J6 was built from 1873, in which the boiler di...
| Great Northern (UK) classes J5 and J4Remove | |
|---|---|
| Variant | rebuilt J4 |
| Built | 1912-1929 |
| Manufacturers | Doncaster |
| Wheel arrangement | C |
| Gauge | 1435 mm |
| Length | |
| Service mass | 43284 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Great Northern (UK) classes J5 and J4rebuilt J4 |
|---|---|
| Built | 1912-1929 |
| Manufacturers | Doncaster |
| Wheel arrangement | 0-6-0 (Six-coupled) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Great Northern (UK) classes J5 and J4rebuilt J4 |
|---|---|
| Wheelbase | 4.72 m |
| Total wheelbase | 11.27 m |
| Service mass | 43.3 t |
| Adhesion mass | 43.3 t |
| Total mass | 82.4 t |
| Rigid wheelbase | 4.72 m |
| Axle load | 16.3 t |
Boiler
| Property | Great Northern (UK) classes J5 and J4rebuilt J4 |
|---|---|
| Grate area | 1.51 m² |
| Firebox surface | 9.755 m² |
| Tube heating surface | 104.981 m² |
| Evaporative heating surface | 114.735 m² |
| Total heating surface | 114.7 m² |
Power plant
| Property | Great Northern (UK) classes J5 and J4rebuilt J4 |
|---|---|
| Driver diameter | 1,575 mm |
| Boiler pressure | 12.1 bar |
| Expansion type | simple expansion |
| Cylinders | two, 444 x 660 mm |
Power
| Property | Great Northern (UK) classes J5 and J4rebuilt J4 |
|---|---|
| Power source | steam |
| Estimated power | 485 kW (659 PS) |
| Starting effort | 85.0 kN |
Calculated values
| Property | Great Northern (UK) classes J5 and J4rebuilt J4 |
|---|---|
| Factor of adhesion | 1 : 5.00 |
| Optimal speed | 35 km/h |
| Power-to-weight ratio | 11.2 kW/t |
| Heating Surface Equivalent | 163.5 m² |
| Cylinder volume/HSE | 1 : 1,253.50 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 15.47 |
| Grate area/Heating surface | 1 : 75.98 |
| Firebox/Tube surface | 1 : 10.76 |
