The GWR 3511 class were

standard gauge A standard-gauge railway is a railway with a track gauge of . The standard gauge is also called Stephenson gauge (after George Stephenson), International gauge, UIC gauge, uniform gauge, normal gauge and European gauge in Europe, and SGR in Ea ...

locomotives designed by William Dean for the

Great Western Railway The Great Western Railway (GWR) was a British railway company that linked London with the southwest, west and West Midlands of England and most of Wales. It was founded in 1833, received its enabling Act of Parliament on 31 August 1835 and ran ...

and built in 1885.

History

They comprised the last ten of the twenty locomotives of Lot 64. The first ten locomotives of this Lot were built to the

broad gauge A broad-gauge railway is a railway with a track gauge (the distance between the rails) broader than the used by standard-gauge railways. Broad gauge of , commonly known as Russian gauge, is the dominant track gauge in former Soviet Union (CIS ...

as the 3501 class.

Use

Originally built with condensing apparatus they were used on work through the Severn Tunnel until the ventilation was improved.

Rebuilding

The condensing apparatus was soon removed and in 1894/5 they were all rebuilt as

tender locomotive A tender or coal-car (US only) is a special rail vehicle hauled by a steam locomotive containing its fuel (wood, coal, oil or torrefied biomass) and water. Steam locomotives consume large quantities of water compared to the quantity of fuel, so ...

s of the 3201 class as were the 3501 class.

References

* * * {{DEFAULTSORT:Gwr 3511 Class 3511 Steam locomotives of Great Britain 2-4-0T locomotives 2-4-0 locomotives Condensing steam locomotives