Lancashire & Yorkshire class 53
Between 1847 and 1849, the Lancashire & Yorkshire received a total of 82 express locomotives with a 2-2-2 wheel arrangement. These date from the time of John Hawkshaw, who was not actually a locomotive designer and whose designs are not considered the most successful. There were three slightly different variants, which differed primarily in the driving wheel diameter.
One version had a wheel diameter of 5 feet 9 inches and was built 26 times at the L&YR plants in Miles Platting. 17 of the same design came from William Fairbairn. Six and four respectively of another version with a wheel diameter of 5 feet and 6 inches were made by the same manufacturers. Finally there were 29 from Bury, Curtis & Kennedy with 5 feet 10 inches.
Of the total of 82 locomotives, 69 were converted between 1867 and 1872 to a 2-4-0 wheel arrangement. Some received new cylinders with a diameter of 15.5 instead of 15 inches and a new boiler. The locomotives with the original boiler stayed in service until 1880 at the latest, and the others a few years longer.
Technical data
General
| Property | as built | rebuilt 2-4-0 |
|---|---|---|
| Built | 1847-1849 | 1867-1872 |
| Manufacturers | Miles Platting, Fairbairn, Bury, Curtis & Kennedy | Miles Platting |
| Wheel arrangement | 2-2-2 (Jenny Lind) | 2-4-0 (Porter) |
| Gauge | 1,435 mm (Standard gauge) | |
Dimensions and weights
| Property | as built | rebuilt 2-4-0 |
|---|---|---|
| Wheelbase | 4.01 m | 4.37 m |
| Service mass | 24.5 t | |
| Adhesion mass | 12.6 t | |
| Rigid wheelbase | 4.01 m | 4.37 m |
| Axle load | 12.6 t |
Power plant
| Property | as built | rebuilt 2-4-0 |
|---|---|---|
| Driver diameter | 1,753 mm | |
| Boiler pressure | 7.6 bar | 8.3 bar |
| Expansion type | simple expansion | |
| Cylinders | two, 381 x 508 mm | two, 394 x 508 mm |
Power
| Property | as built | rebuilt 2-4-0 |
|---|---|---|
| Power source | steam | |
| Estimated power | 186 kW (253 PS) | 224 kW (305 PS) |
| Starting effort | 27.1 kN | 31.6 kN |
Calculated values
| Property | as built | rebuilt 2-4-0 |
|---|---|---|
| Factor of adhesion | 1 : 4.56 | |
| Optimal speed | 42 km/h | 43 km/h |
| Power-to-weight ratio | 7.6 kW/t | |
| Adhesive weight/Total | 1 : 1.95 | |
| Heating Surface Equivalent | 123.1 m² | |
| Cylinder volume/HSE | 1 : 1,004.75 | |
| Tractive force/Heating surface | 1 : 7.94 | |
| Grate area/Heating surface | 1 : 62.14 | |
| Firebox/Tube surface | 1 : 9.41 |
Boiler
| Property | as built | rebuilt 2-4-0 |
|---|---|---|
| Grate area | 1.338 m² | |
| Firebox surface | 7.99 m² | |
| Tube heating surface | 75.159 m² | |
| Evaporative heating surface | 83.148 m² | |
| Total heating surface | 83.1 m² |
