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Midland class 800
The class 800 was a 2-4-0 express locomotive designed by Matthew Kirtley and built in 1870 and 1871. 30 were delivered by Neilson & Co. which were numbered 800 to 829. The rest came from the Midland's own shops at Der...
General
| Property | Midland class 800 rebuilt 1875 |
|---|---|
| Built | 1875-1882 |
| Manufacturers | Derby |
| Wheel arrangement | 2-4-0 (Porter) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Midland class 800 rebuilt 1875 |
|---|---|
| Wheelbase | 5.03 m |
| Rigid wheelbase | 5.03 m |
| Service weight | 41.2 t |
Boiler
| Property | Midland class 800 rebuilt 1875 |
|---|---|
| Grate area | 1.626 m² |
| Firebox surface | 10.219 m² |
| Tube heating surface | 103.587 m² |
| Evaporative heating surface | 113.806 m² |
| Total heating surface | 113.8 m² |
Power plant
| Property | Midland class 800 rebuilt 1875 |
|---|---|
| Driver diameter | 2,045 mm |
| Boiler pressure | 9.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 457 x 610 mm |
Power
| Property | Midland class 800 rebuilt 1875 |
|---|---|
| Power source | steam |
| Estimated power | 373 kW (507 PS) |
| Starting effort | 51.1 kN |
Calculated values
| Property | Midland class 800 rebuilt 1875 |
|---|---|
| Optimal speed | 45 km/h |
| Power-to-weight ratio | 9.1 kW/t |
| Heating Surface Equivalent | 164.9 m² |
| Cylinder volume/HSE | 1 : 1,213.82 |
| Tractive force/Heating surface | 1 : 9.38 |
| Grate area/Heating surface | 1 : 69.99 |
| Firebox/Tube surface | 1 : 10.14 |
