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GWR 3600 class

Type and origin
Power type	Steam
Designer	William Dean
Builder	Swindon Works
Order number	Lots 130, 134, 143
Build date	1900–1903
Total produced	31

Specifications
Configuration:
• Whyte	2-4-2T
• UIC	1′B1′
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 8 in (1.118 m)
Driver dia.	5 ft 2 in (1.575 m)
Trailing dia.	3 ft 8 in (1.118 m)
Fuel type	Coal
Fuel capacity	3 long tons (3.0 t; 3.4 short tons)
Water cap.	1,900 imp gal (8,600 L; 2,300 US gal)
Boiler	GWR Standard No. 3^[1]
Boiler pressure	200 lbf/in² (1.38 MPa)
Cylinders	Two, inside
Cylinder size	17 in × 24 in (432 mm × 610 mm)

Performance figures
Tractive effort	19,020 lbf (84.61 kN)

Career
Operators	Great Western Railway
Withdrawn	October 1930 – November 1934
Disposition	All scrapped

The Great Western Railway (GWR) 3600 Class was a class of 2-4-2T side tank steam locomotive, designed by William Dean and built at Swindon in three lots in 1900-1903:

^ Champ (2018), p. 320.