GWR Pyracmon Class

Pyracmon
Type and origin Power type Steam Designer Daniel Gooch Builder Great Western Railway
Specifications Configuration: ​  • Whyte 0-6-0 Gauge 7 ft 1⁄4 in (2,140 mm) Driver dia. 5 ft 0 in (1,524 mm) Wheelbase 15 ft 5 in (4,699 mm) Cylinder size 16 in × 24 in (406 mm × 610 mm), dia × stroke
Career Operators Great Western Railway Class Pyracmon Withdrawn 1869-1873

Type and origin
Power type	Steam
Designer	Daniel Gooch
Builder	Great Western Railway

Specifications
Configuration:	​
• Whyte	0-6-0
Gauge	7 ft 1⁄4 in (2,140 mm)
Driver dia.	5 ft 0 in (1,524 mm)
Wheelbase	15 ft 5 in (4,699 mm)
Cylinder size	16 in × 24 in (406 mm × 610 mm), dia × stroke

Career
Operators	Great Western Railway
Class	Pyracmon
Withdrawn	1869-1873

The Great Western Railway Pyracmon Class were 0-6-0 broad gauge steam locomotives for goods train work. This class was introduced into service between November 1847 and April 1848, and withdrawn between August 1871 and December 1873. Bacchus was added to the class in May 1849 (and withdrawn in November 1869), having been constructed to broadly the same design from spare parts.

The Pyracmon class were a development of the preceding Premier class, the first locomotives to be constructed at the new Swindon railway works. They differed in having the Premiers haycock firebox replaced by Gooch's stronger round-topped firebox with its wrapper raised above the boiler barrel.

From about 1865, Bacchus became part of the Fury Class, while the remaining locomotives became part of the Caesar Class.

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