GWR 850 Class

Specifications
Specifications
Configuration:;
• Whyte	0-6-0ST
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	4 ft 0 in (1.219 m)
Wheelbase	13 ft 8 in (4.17 m)
Fuel type	Coal
Boiler	GWR 850
Cylinders	two
Cylinder size	15 in × 24 in (381 mm × 610 mm)

Type and origin
Type and origin
Power type	Steam
Designer	George Armstrong
Builder	GWR Wolverhampton works
Build date	1874-1895
Total produced	170

GWR 850 Class
GWR 850 Class
	No. 2007 (withdrawn 12/49) awaiting scrapping at Swindon 1950
Power type
Type and origin
Power type	Steam
Designer	George Armstrong
Builder	GWR Wolverhampton works
Build date	1874-1895
Total produced	170
Configuration:;
Specifications
Configuration:;
• Whyte	0-6-0ST
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	4 ft 0 in (1.219 m)
Wheelbase	13 ft 8 in (4.17 m)
Fuel type	Coal
Boiler	GWR 850
Cylinders	two
Cylinder size	15 in × 24 in (381 mm × 610 mm)
Operators
Career
Operators	Great Western Railway; British Railways
Retired	1927–1958
Disposition	All scrapped

The GWR Class 850 was an extensive class of small 0-6-0ST locomotives designed by George Armstrong and built at the Wolverhampton railway works of the Great Western Railway between 1874 and 1895. Aptly described as the GWR equivalent of the LB&SCR "Terrier" Class of William Stroudley, their wide availability and lively performance gave them long lives, and eventually they were replaced from 1949 by what were in essence very similar locomotives, the short-lived 1600 Class of Frederick Hawksworth, which in the headlong abandonment of steam outlived them by a mere seven years or so.

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