The GWR 0-6-0PT (

Pannier Tank A tank locomotive or tank engine is a steam locomotive that carries its water in one or more on-board water tanks, instead of a more traditional tender. Most tank engines also have bunkers (or fuel tanks) to hold fuel; in a tender-tank locomot ...

), is a type of

steam locomotive A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, oil or, rarely, wood) to heat water in the locomot ...

built by the British

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 ...

with the water tanks carried on both sides of the boiler, in the manner of panniers. They were used for local, suburban and branch line passenger and goods traffic, for shunting duties, and as banker engines on inclines. The early examples, such as the

1901 Events January * January 1 – The Crown colony, British colonies of New South Wales, Queensland, South Australia, Tasmania, Victoria (Australia), Victoria and Western Australia Federation of Australia, federate as the Australia, ...

and

2021 File:2021 collage V2.png, From top left, clockwise: the James Webb Space Telescope was launched in 2021; Protesters in Yangon, Myanmar following the 2021 Myanmar coup d'état, coup d'état; A civil demonstration against the October–November 2021 ...

classes, were rebuilt from

saddle The saddle is a supportive structure for a rider of an animal, fastened to an animal's back by a girth. The most common type is equestrian. However, specialized saddles have been created for oxen, camels and other animals. It is not kno ...

or side tanks when the locos received a

Belpaire firebox The Belpaire firebox is a type of firebox used on steam locomotives. It was invented by Alfred Belpaire of Belgium in 1864. Today it generally refers to the shape of the outer shell of the firebox which is approximately flat at the top and squa ...

– this type of firebox has a square top and is incompatible with a curved saddle tank. This process mostly took place during the tenure at Swindon Works of George Jackson Churchward. Only a very small number of saddle tank locomotives escaped rebuilding as panniers, notably the 1361 Class built new under Churchward in 1910, by which date a few of the 1813 Class had already been rebuilt as pannier tanks.

Classification

The GWR pannier tank locomotives were classified as follows: Small engines (wheelbase under 15'), rebuilt from saddle or side tanks * 93, 850, 1901 Classes G. Armstrong/W'hampton 1874-95, 292 locos * 2021, 2101 Classes Dean/W'hampton 1897-1905, 140 locos Small engines (wheelbase under 15'), built as pannier tanks from new * 5400 ClassCollett/Swindon 1930, 25 locos * 6400, 7400 ClassesCollett/Swindon 1932-50, 90 locos * 1366 Class Collett/Swindon 1934, six locos * 1600 Class Hawksworth/Swindon 1949-55, 80 locos Large engines (wheelbase over 15'), rebuilt from saddle or side tanks * 302 Class J. Armstrong/W'hampton 1864-5, eight locos * 1016 ClassG. Armstrong/W'hampton 1867-71, eight locos * 1076 (Buffalo), 1134 ClassesJ. Armstrong/Swindon 1870-1881, 266 locos * 645, 1501 ClassesG. Armstrong/W'hampton 1872-81, 106 locos * 119 ClassG. Armstrong/W'hampton (renewals after Gooch) 1878-83, 11 locos * 322 ClassG. Armstrong/W'hampton (renewals after Beyer) 1878-85, six locos * 1813 ClassDean/Swindon 1882-4, 40 locos * 1661 ClassDean/Swindon 1886-7, 40 locos * 655 ClassG. Armstrong/W'hampton 1892-7, 52 locos * 1854 ClassDean/Swindon 1890-95, 120 locos * 2721 ClassDean/Swindon 1897-1901, 80 locos Large engines (wheelbase over 15'), built as pannier tanks from new * GWR 5700 ClassCollett/Swindon and outside firms 1929-50, 863 locos (includes sub-class 8750) *

GWR 9400 Class The Great Western Railway (GWR) 9400 Class is a class of 0-6-0 pannier tank steam locomotive, used for shunting and banking duties. The first ten 9400s were the last steam engines built by the GWR. After nationalisation in 1948, another 200 we ...

Hawksworth/Swindon and outside firms 1947-56, 210 locos Large boiler/short wheelbase *

GWR 1500 Class The Great Western Railway (GWR) 1500 Class is a class of 0-6-0 pannier tank steam locomotive. Despite being a GWR Hawksworth design, all ten (nos 1500–1509) were completed under the administration of the Western Region of British Railw ...

Hawksworth/Swindon 1949, 10 locos

Preservation

In fiction

* In

The Railway Series ''The Railway Series'' is a series of British books about a railway known as the North Western Railway, located on the fictional Island of Sodor. There are 42 books in the series, the first published in May 1945 by the Rev. Wilbert Awdry. Twen ...

of children's books by the Wilbert Awdry and the television series

Thomas & Friends ''Thomas & Friends'' (originally known as ''Thomas the Tank Engine & Friends'' and later ''Thomas & Friends: Big World! Big Adventures!'') is a British children's television series that aired across 24 series from 1984 to 2021. Based on ''The ...

the character Duck the Great Western Engine is based on a 5700 Class pannier tank. * No. 5775 is in the 1970 film ''The Railway Children'', in a brown livery, with the initials of the fictitious ''Great Northern and Southern Railway'' on the tank sides. * No. 6412 was in the 1970s children's TV series '' The Flockton Flyer''. * No. 5764 was in the 1976 short film " The Signalman", loosely based on the Charles Dickens book of the same name.

References

Sources

Site with much detail information on boilers etc.
{{GWR Locomotives 0-6-0PT