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Great Central classes 11B, C and D
One of Robinson's first developments was the class 11B, which was intended to meet the increased demands of new lines. They were similar to the class 9J “Pom-Poms” freight locomotives and were therefore also called “P...
| Great Central classes 11B, C and DRemove | |
|---|---|
| Variant | Standard |
| Built | 1901-1904 |
| Manufacturers | Sharp, Stewart & Co.;Vulcan Foundry |
| Wheel arrangement | 2B |
| Gauge | 1435 mm |
| Length | |
| Service mass | 53444 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Great Central classes 11B, C and D Standard Remove |
|---|---|
| Built | 1901-1904 |
| Manufacturers | Sharp, Stewart & Co., Vulcan Foundry |
| Wheel arrangement | 4-4-0 (American) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Great Central classes 11B, C and D Standard Remove |
|---|---|
| Wheelbase | 7.28 m |
| Total wheelbase | 13.61 m |
| Service mass | 53.4 t |
| Adhesion mass | 36 t |
| Total mass | 100.2 t |
| Rigid wheelbase | 2.74 m |
| Axle load | 18.8 t |
| Water capacity | 18,185 l |
| Fuel capacity | 5.1 t (coal) |
Boiler
| Property | Great Central classes 11B, C and D Standard Remove |
|---|---|
| Grate area | 1.858 m² |
| Firebox surface | 10.126 m² |
| Tube heating surface | 122.493 m² |
| Evaporative heating surface | 132.619 m² |
| Superheater surface | 28.243 m² |
| Total heating surface | 160.9 m² |
Power plant
| Property | Great Central classes 11B, C and D Standard Remove |
|---|---|
| Driver diameter | 2,057 mm |
| Boiler pressure | 12.4 bar |
| Expansion type | simple expansion |
| Cylinders | two, 470 x 660 mm |
Power
| Property | Great Central classes 11B, C and D Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 708 kW (963 PS) |
| Starting effort | 74.8 kN |
Calculated values
| Property | Great Central classes 11B, C and D Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.72 |
| Optimal speed | 58 km/h |
| Power-to-weight ratio | 13.2 kW/t |
| Heating Surface Equivalent | 239.7 m² |
| Cylinder volume/HSE | 1 : 955.45 |
| Adhesive weight/Total | 1 : 1.49 |
| Tractive force/Heating surface | 1 : 9.71 |
| Grate area/Heating surface | 1 : 86.58 |
| Firebox/Tube surface | 1 : 12.10 |
| Total/Superheater | 1 : 4.70 |
