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Specifications
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
Boiler pressure	180 lbf/in2 (1.24 MPa)
Cylinders	Two, outside
Cylinder size	17 in × 24 in (432 mm × 610 mm)

Type and origin
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

GWR 4400 Class
GWR 4400 Class
	4402 at Swindon 1950 awaiting scrapping
Power type
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
Configuration:;
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
Boiler pressure	180 lbf/in2 (1.24 MPa)
Cylinders	Two, outside
Cylinder size	17 in × 24 in (432 mm × 610 mm)
Tractive effort
Performance figures
Tractive effort	21,440 lbf (95.37 kN)
Operators
Career
Operators	Great Western Railway; British Railways;
Locale	Western Region
Withdrawn	December 1949 – September 1955
Disposition	All scrapped
	Sources for technical data:

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

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.^[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".

References

^ Champ, Jim (2018). An Introduction to Great Western Locomotive Development. Barnsley: Pen & Sword Transport. p. 319. ISBN 978-1-4738-7784-9. OCLC 1029234106. OL 26953051M.
^ ^a ^b ^c 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.

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.