London, Brighton & South Coast Craven Standard Goods
In the early 1860s, John Chester Craven developed a standard heavy goods type that was to be built in larger numbers with only minor variations. These were six-coupled machines with outside and inside frames, inside cylinders and Stephenson valve gear. They were manufactured at LB&SCR's Brighton works.
Fifteen were built between 1863 and 1867, with cylinders measuring 16 by 24 inches and a wheel diameter of five feet. The running numbers were between 157 and 221 with gaps. In 1867 four more examples were built with the numbers 224 to 227. The diameters of the cylinders and the driving wheels had each been increased by an inch.
There were some differences in the locomotives between the individual production lots, which mainly affected the boiler. It was observed that the firebox gradually got larger in area, while the tube heating area decreased. Most engines were retired between 1893 and 1895, only number 225 survived until 1901.
Technical data
General
| Property | No. 168, 169 | No. 224-227 |
|---|---|---|
| Built | 1863 | 1866 |
| Manufacturers | Brighton | |
| Wheel arrangement | 0-6-0 (Six-coupled) | |
| Gauge | 1,435 mm (Standard gauge) | |
Dimensions and weights
| Property | No. 168, 169 | No. 224-227 |
|---|---|---|
| Length loco | 7.35 m | 7.54 m |
| Total wheelbase | 4.80 m | 4.85 m |
| Service mass | 34.3 t | 39.9 t |
| Adhesion mass | 34.3 t | 39.9 t |
| Axle load | 14.6 t | 14.3 t |
Boiler
| Property | No. 168, 169 | No. 224-227 |
|---|---|---|
| Firebox surface | 7.99 m² | 9.848 m² |
| Tube heating surface | 110.276 m² | 80.826 m² |
| Evaporative heating surface | 118.266 m² | 90.673 m² |
| Total heating surface | 118.3 m² | 90.7 m² |
Power plant
| Property | No. 168, 169 | No. 224-227 |
|---|---|---|
| Driver diameter | 1,524 mm | 1,549 mm |
| Boiler pressure | 9 bar | |
| Expansion type | simple expansion | |
| Cylinders | two, 406 x 610 mm | two, 432 x 610 mm |
Power
| Property | No. 168, 169 | No. 224-227 |
|---|---|---|
| Power source | steam | |
| Starting effort | 50.3 kN | 55.9 kN |
Calculated values
| Property | No. 168, 169 | No. 224-227 |
|---|---|---|
| Factor of adhesion | 1 : 6.69 | 1 : 7.01 |
| Heating Surface Equivalent | 158.2 m² | 139.9 m² |
| Cylinder volume/HSE | 1 : 999.59 | 1 : 1,276.05 |
| Adhesive weight/Total | 1 : 1.00 | |
| Tractive force/Heating surface | 1 : 8.89 | 1 : 12.87 |
| Firebox/Tube surface | 1 : 13.80 | 1 : 8.21 |