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Lancashire & Yorkshire classes 27 and 28
After the L&YR had used the DX Goods from the LNWR, John Aspinall had designed the later class 27 as a new standard goods locomotive. It was a relatively simple 0-6-0 with inside cylinders and Joy valve gear. With a d...
General
| Property | Lancashire & Yorkshire classes 27 and 28 superheated |
|---|---|
| Built | ab 1909 |
| Manufacturers | Horwich |
| Wheel arrangement | 0-6-0 (Six-coupled) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Lancashire & Yorkshire classes 27 and 28 superheated |
|---|---|
| Length | 14.78 m |
| Wheelbase | 4.98 m |
| Rigid wheelbase | 4.98 m |
| Service weight | 45 t |
| Adhesive weight | 45 t |
| Axle load | 16.7 t |
| Total weight | 71.5 t |
| Water capacity | 8,184 l |
| Fuel capacity | 3 t (coal) |
Boiler
| Property | Lancashire & Yorkshire classes 27 and 28 superheated |
|---|---|
| Grate area | 1.742 m² |
| Firebox surface | 10.043 m² |
| Tube heating surface | 70.839 m² |
| Evaporative heating surface | 80.881 m² |
| Superheater surface | 17.754 m² |
| Total heating surface | 98.6 m² |
Power plant
| Property | Lancashire & Yorkshire classes 27 and 28 superheated |
|---|---|
| Driver diameter | 1,549 mm |
| Boiler pressure | 12.4 bar |
| Expansion type | simple expansion |
| Cylinders | two, 508 x 660 mm |
Power
| Property | Lancashire & Yorkshire classes 27 and 28 superheated |
|---|---|
| Power source | steam |
| Estimated power | 507 kW (689 PS) |
| Starting effort | 116.0 kN |
Calculated values
| Property | Lancashire & Yorkshire classes 27 and 28 superheated |
|---|---|
| Factor of adhesion | 1 : 3.80 |
| Optimal speed | 27 km/h |
| Power-to-weight ratio | 11.3 kW/t |
| Heating Surface Equivalent | 166.6 m² |
| Cylinder volume/HSE | 1 : 1,606.82 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 24.57 |
| Grate area/Heating surface | 1 : 56.62 |
| Firebox/Tube surface | 1 : 7.05 |
| Total/Superheater | 1 : 4.56 |
