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London, Brighton & South Coast class H2
The H2 was basically a superheated variant of the H1 Atlantic. Introduced when L.B. Billinton was in office, most of its design was still identical with the predecessor class introduced by D.E. Marsh. However, it coul...
General
| Property | London, Brighton & South Coast class H2 as built |
|---|---|
| Built | 1911-1912, 2024 |
| Manufacturers | Brighton |
| Wheel arrangement | 4-4-2 (Atlantic) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | London, Brighton & South Coast class H2 as built |
|---|---|
| Wheelbase | 8.03 m |
| Rigid wheelbase | 2.08 m |
| Service weight | 69.6 t |
| Adhesive weight | 38.1 t |
| Total weight | 110.2 t |
| Water capacity | 15,910 l |
| Fuel capacity | 4.1 t (coal) |
Boiler
| Property | London, Brighton & South Coast class H2 as built |
|---|---|
| Grate area | 2.88 m² |
| Firebox surface | 12.697 m² |
| Tube heating surface | 177.724 m² |
| Evaporative heating surface | 190.421 m² |
| Superheater surface | 42.828 m² |
| Total heating surface | 233.2 m² |
Power plant
| Property | London, Brighton & South Coast class H2 as built |
|---|---|
| Driver diameter | 2,019 mm |
| Boiler pressure | 11.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 533 x 660 mm |
Power
| Property | London, Brighton & South Coast class H2 as built |
|---|---|
| Power source | steam |
| Estimated power | 895 kW (1,217 PS) |
| Starting effort | 92.7 kN |
Calculated values
| Property | London, Brighton & South Coast class H2 as built |
|---|---|
| Factor of adhesion | 1 : 4.03 |
| Optimal speed | 60 km/h |
| Power-to-weight ratio | 12.9 kW/t |
| Heating Surface Equivalent | 339.6 m² |
| Cylinder volume/HSE | 1 : 869.19 |
| Adhesive weight/Total | 1 : 1.83 |
| Tractive force/Heating surface | 1 : 8.30 |
| Grate area/Heating surface | 1 : 80.99 |
| Firebox/Tube surface | 1 : 14.00 |
| Total/Superheater | 1 : 4.45 |
