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London, Brighton & South Coast class I1
The I1 was built in two batches of ten locomotives each in 1906 and 1907 for the suburban lines in south London. They had a 4-4-2T wheel arrangement with a five foot six inch driving wheel diameter and a condensing ap...
General
| Property | London, Brighton & South Coast class I1Remove |
|---|---|
| Built | 1906-1907 |
| Manufacturers | Brighton |
| Wheel arrangement | 4-4-2T (Atlantic) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | London, Brighton & South Coast class I1Remove |
|---|---|
| Wheelbase | 8.83 m |
| Rigid wheelbase | 2.67 m |
| Service weight | 69.4 t |
| Adhesive weight | 37.2 t |
| Axle load | 18.6 t |
| Water capacity | 9,013 l |
| Fuel capacity | 3.3 t (coal) |
Boiler
| Property | London, Brighton & South Coast class I1Remove |
|---|---|
| Grate area | 1.619 m² |
| Firebox surface | 8.663 m² |
| Tube heating surface | 88.038 m² |
| Evaporative heating surface | 96.701 m² |
| Total heating surface | 96.7 m² |
Power plant
| Property | London, Brighton & South Coast class I1Remove |
|---|---|
| Driver diameter | 1,676 mm |
| Boiler pressure | 11.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 444 x 660 mm |
Power
| Property | London, Brighton & South Coast class I1Remove |
|---|---|
| Power source | steam |
| Estimated power | 447 kW (608 PS) |
| Starting effort | 77.5 kN |
Calculated values
| Property | London, Brighton & South Coast class I1Remove |
|---|---|
| Factor of adhesion | 1 : 4.70 |
| Optimal speed | 35 km/h |
| Power-to-weight ratio | 6.4 kW/t |
| Heating Surface Equivalent | 140.0 m² |
| Cylinder volume/HSE | 1 : 1,463.84 |
| Adhesive weight/Total | 1 : 1.87 |
| Tractive force/Heating surface | 1 : 16.75 |
| Grate area/Heating surface | 1 : 59.73 |
| Firebox/Tube surface | 1 : 10.16 |
