GWR 4400 Class

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GWR 4400 Class
4402 at Swindon 1950 awaiting scrapping
Type and origin Power type Steam Designer George Jackson Churchward Builder Wolverhampton Works (10) Swindon Works (1) Serial number Wolverhampton: 765–774 Swindon: 2023 Build date 1905–1906, 1914 Total produced 11
Specifications Configuration: ​  • Whyte 2-6-2T Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Leading dia. 3 ft 2 in (965 mm) Driver dia. 4 ft 1+1⁄2 in (1,257 mm) Trailing dia. 3 ft 2 in (965 mm) Length 36 ft 4+1⁄2 in (11.087 m) Width 8 ft 7 in (2.616 m) Height 12 ft 5+9⁄16 in (3.799 m) Loco weight 56 long tons 13 cwt (57.6 t) (63.4 short tons) Fuel type Coal Fuel capacity Originally: 2 long tons 3 cwt (4,800 lb or 2.2 t) Later: 2 long tons 17 cwt (6,400 lb or 2.9 t) Water cap. 1,000 imp gal (4,500 L; 1,200 US gal) Boiler: ​  • Type Standard 5[1] Boiler pressure 180 lbf/in2 (1.24 MPa) Cylinders Two, outside Cylinder size 17 in × 24 in (432 mm × 610 mm)
Performance figures Tractive effort 21,440 lbf (95.37 kN)
Career Operators Great Western Railway British Railways Locale Western Region Withdrawn December 1949 – September 1955 Disposition All scrapped
Sources for technical data: [2]

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

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 The 4400s were particularly used in hilly districts, notably the Princetown and Much Wenlock Branches.^[2] All were withdrawn and scrapped between 1949 and 1955.^[2]

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".

• GWR 4500 Class
• GWR 4575 Class
• List of GWR standard classes with two outside cylinders

• 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.

• Class 4400 Details at Rail UK

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