GWR 4-6-0 Identification
No, they don't all look the same! There are a good number of features that can be used for identification. Here's a selection.
|Four Cylinder - deep slide bars, cylinders set back from smokebox over rear bogie wheel, cylinder cover under smokebox projecting forward, outside valve rod in front of cylinder||Y||Y||Y|
|Double bend steam pipes||some||Y||Y|
|Two Cylinder - plain slidebars, cylinders between bogie wheels under smokebox, outside valve rod behind cylinder||Y||Y||Y||Y||Y||Y|
|Straight steam pipes||some||Y||Y||Y||Y||Y|
|First and second driving wheels nearly touching||Y||Y||Y|
|Splasher not significantly covered by cab||Y||Y|
|Last quarter of rear splasher covered by cab.||Y||Y||Y||Y||Y|
|Nearly half of rear splasher covered by cab||Y|
|Single continuous splasher||Y|
|Full length frames - visible above footplate under smokebox||Y||Y||Y||Y||Y|
|Side window cab||Y||Y||Y||Y||Y||Y||Y|
|Raised footplate section over cylinder||Y||Y|
|Safety valve cover between last boiler ring and firebox||Y||Y|
|Safety valve cover over last boiler ring||Y||Y||Y||Y||Y||Y|
|Safety valve cover between last two boiler rings||Y|
|Long smokebox, extending well back from saddle||Y||Y|
4000, 4009, 4016, 4032, 4037 later converted to castles
|4073-4099, 5000-5099, 7000-7037.
Conversions 100(A1), 111, 4000, 4009, 4016, 4032, 4037.
|6000-6029||4900-4999, 5900-5999, 6900-6958||6800-6879||7800-7829||6959-6999, 7900-7929||1000-1029|
There are other features of course, but these are intended to be easy to spot even if you don't have other locomotives in the same photo to compare with. .
The Saint and Star are basically the same, except that the Star has four cylinders, and because of that a different frame design, visible in front of the smokebox. Saints, Stars,Halls and Granges all have the same size boiler.
The Castle is a Star with a bigger boiler.
The King is the biggest of all, also with four cylinders, and with a very large boiler. It is something of an odd man out with different wheel spacing and bogie to the others.
The Hall was based on the Saint, but is a mixed traffic locomotive with smaller wheels.
The Grange is similar to a Hall with slightly smaller wheels and the footplate raised over the cylinders.
The Manor is a lighter and shorter Grange with a smaller boiler.
The Modified Hall is based on the Hall with different cylinders and a frame design more akin to the Star.
The County has a chassis very similar to the Modified Hall , but with a bigger boiler.
Here are some profiles so you can work out which is which (and if you want to cheat the class is on the name plate)