GWR 4400 Class

The Great Western Railway (GWR) 4400 Class was a class of 2-6-2T side tank steam locomotive.

GWR 4400 Class
4402 at Swindon 1950 awaiting scrapping
Type and origin
Power typeSteam
DesignerGeorge Jackson Churchward
Builder
  • Wolverhampton Works (10)
  • Swindon Works (1)
Serial number
  • Wolverhampton: 765–774
  • Swindon: 2023
Build date1905–1906, 1914
Total produced11
Specifications
Configuration:
​
 • Whyte2-6-2T
Gauge4 ft 8 1⁄2 in (1,435 mm) standard gauge
Driver dia.4 ft 1 1⁄2 in (1,257 mm)
Loco weight56 long tons 13 cwt (57.6 t)
(63.4 short tons)
Fuel typeCoal
Water cap1,000 imp gal (4,500 l; 1,200 US gal)
Boiler pressure180 lbf/in2 (1.24 MPa)
CylindersTwo, outside
Cylinder size17 in × 24 in (432 mm × 610 mm)
Performance figures
Tractive effort21,440 lbf (95.37 kN)
Career
Operators
LocaleWestern Region
WithdrawnDecember 1949 – September 1955
DispositionAll scrapped
Sources for technical data: [1]

History

They were introduced in 1904 for work on small branch lines. The 4500 class was a later development with larger driving wheels. The 4400s were particularly used in hilly districts, notably the Princetown and Much Wenlock Branches.[1] All were withdrawn and scrapped between 1949 and 1955.[1]

The 4400, 4500 and 4575 classes, which all had 24 in (610 mm) stroke cylinders, the Standard 5 boiler and driving wheels under 5 ft (1.524 m), were collectively known as "Small Prairies", as opposed to the 5100, 3150, 5101, 6100, 3100 and 8100 classes, with 30 in (762 mm) stroke cylinders, Standard 2 or 4 boilers and driving wheels over 5 ft (1.524 m), known as "Large Prairies".

See also

References
  1. le Fleming, H.M. (February 1962). White, D.E. (ed.). The Locomotives of the Great Western Railway, part nine: Standard Two-Cylinder Classes. RCTS. p. J44–J46.CS1 maint: ref=harv (link)
  • Whitehurst, Brian (1973). Great Western Engines, Names, Numbers, Types and Classes (1940 to Preservation). Oxford, UK: Oxford Publishing Company. ISBN 978-0-9028-8821-0. OCLC 815661.


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