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 ...
(GWR) 3100 Class was a class of
2-6-2
Under the Whyte notation for the classification of steam locomotives, represents the wheel arrangement of two leading wheels, six coupled driving wheels and two trailing wheels. This arrangement is commonly called a Prairie.
Overview
The major ...
T
side 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 ...
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 ...
.
History
This class of large prairie was created in 1938 when
Collett rebuilt some of Churchward's
3150 Class with a view to using them as
bankers
A bank is a financial institution that accepts deposits from the public and creates a demand deposit while simultaneously making loans. Lending activities can be directly performed by the bank or indirectly through capital markets.
Because ...
, particularly from
Severn Tunnel
The Severn Tunnel ( cy, Twnnel Hafren) is a railway tunnel in the United Kingdom, linking South Gloucestershire in the west of England to Monmouthshire in south Wales under the estuary of the River Severn. It was constructed by the Great Western ...
Junction shed. These engines used the standard class 4 boiler again, but pressed to . and using smaller coupled wheels of diameter, and increase in cylinder diameter, nominal tractive effort rose to . Almost impossible to pick out was a reduction in
pony truck
A Bissell or Bissel truck (also Bissel bogie or Pony truck) is a single-axle bogie which pivots towards the centre of a steam locomotive to enable it to negotiate curves more easily. Invented in 1857 by and usually then known as a ''pony truck' ...
wheel diameter to . Only five engines were ever modified, namely 3173, 3156, 3181, 3155 and 3179 which were rebuilt as 3100 to 3104 respectively. None of these were preserved.
See also
*
GWR 3100/5100 Class (1906)
*
GWR 3150 Class
The Great Western Railway (GWR) 3150 Class was a class of 2-6-2T side tank steam locomotive.
History
Churchward based the 3150 class on his GWR 5100 Class, 3100 (later 5100) class. They used the larger and heavier Standard 4 boiler and so had ...
*
GWR 5101 Class
The GWR 5101 Class or 'Large Prairie' is a class of 2-6-2T steam locomotives of the Great Western Railway.
History
The 5101 Class were medium-sized tank engines used for suburban and local passenger services all over the Great Western Railw ...
*
GWR 6100 Class
The GWR 6100 Class is a class of 2-6-2T side tank steam locomotives.
History
The class was designed by Charles Collett and introduced in 1931, and were a straightforward development of the earlier 5101 class (and for that matter the 1905 310 ...
*
GWR 8100 Class
The Great Western Railway (GWR) GWR 5100 Class (known as the 3100 class between 1912 and 1927) was a class of 2-6-2T side tank steam locomotives. It was the first of a series of broadly similar classes used principally for suburban passenger ...
*
List of GWR standard classes with two outside cylinders
George Jackson Churchward created for the Great Western Railway a family of standard classes of locomotive, based on a limited set of shared dimensions and components, and his principles were followed by his successors. Most of these locomotives ...
References
*
External links
Class 3100 Detailsat ''Rail UK''
{{GWR Locomotives
2-6-2T locomotives
3100
Railway locomotives introduced in 1938
Scrapped locomotives
Standard gauge steam locomotives of Great Britain