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Caledonian classes 294 and 711 “Jumbo”
After Dugald Drummond became chief engineer of the Caledonian, he introduced a new class of 0-6-0 goods locomotives. As a basis he used the class D, which he had built a few years earlier during his appointment at Nor...
| Caledonian classes 294 and 711 “Jumbo”Remove | |
|---|---|
| Variant | |
| Built | 1883-1890 |
| Manufacturers | St. Rollox |
| Wheel arrangement | C |
| Gauge | 1435 mm |
| Length | |
| Service mass | 41963 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Caledonian classes 294 and 711 “Jumbo”Remove |
|---|---|
| Built | 1883-1890 |
| Manufacturers | St. Rollox |
| Wheel arrangement | 0-6-0 (Six-coupled) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Caledonian classes 294 and 711 “Jumbo”Remove |
|---|---|
| Wheelbase | 4.95 m |
| Service mass | 42 t |
| Adhesion mass | 42 t |
| Total mass | 78.4 t |
| Rigid wheelbase | 4.95 m |
| Axle load | 14 t |
| Water capacity | 12,912 l |
| Fuel capacity | 5.1 t (coal) |
Boiler
| Property | Caledonian classes 294 and 711 “Jumbo”Remove |
|---|---|
| Grate area | 1.812 m² |
| Evaporative heating surface | 112.506 m² |
| Total heating surface | 112.5 m² |
Power plant
| Property | Caledonian classes 294 and 711 “Jumbo”Remove |
|---|---|
| Driver diameter | 1,524 mm |
| Boiler pressure | 10.3 bar |
| Expansion type | simple expansion |
| Cylinders | two, 457 x 660 mm |
Power
| Property | Caledonian classes 294 and 711 “Jumbo”Remove |
|---|---|
| Power source | steam |
| Estimated power | 410 kW (557 PS) |
| Starting effort | 79.6 kN |
Calculated values
| Property | Caledonian classes 294 and 711 “Jumbo”Remove |
|---|---|
| Factor of adhesion | 1 : 5.17 |
| Optimal speed | 32 km/h |
| Power-to-weight ratio | 9.8 kW/t |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 14.78 |
| Grate area/Heating surface | 1 : 62.09 |
