GWR 5101 Class

GWR 5101 Class
GWR 5101 Class
	5164 at Totnes in 1958
Power type
Type and origin
Power type	Steam
Designer	Charles Collett
Builder	GWR Swindon Works
Order number	Lots 257, 259, 284, 292, 313, 323, 335, 361, 369
Build date	1929–1949
Total produced	140
Configuration:;
Specifications
Configuration:;
• Whyte	2-6-2T
• UIC	1′C1′ h2t
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 2 in (0.965 m)
Driver dia.	5 ft 8 in (1.727 m)
Trailing dia.	3 ft 8 in (1.118 m)
Length	41 ft (12.50 m)
Loco weight	78.45 long tons (79.71 t; 87.86 short tons)
Fuel type	Coal
Fuel capacity	4 long tons (4.1 t; 4.5 short tons)
Water cap.	2,000 imp gal (9,100 L; 2,400 US gal)
Firebox:
• Grate area	20.35 sq ft (1.891 m2)
Boiler	GWR Number 2
Boiler pressure	200 psi (1,400 kPa)
Heating surface:
• Firebox	121.8 sq ft (11.32 m2)
• Tubes and flues	1,144.94 sq ft (106.368 m2)
Superheater:;
• Heating area	82.2 sq ft (7.64 m2)
Cylinders	Two
Cylinder size	18 in × 30 in (457 mm × 762 mm)
Tractive effort
Performance figures
Tractive effort	24,300 lbf (108 kN)
Operators
Career
Operators	Great Western Railway; British Railways;
Class	GWR 5101
Power class	GWR D ; BR 4MT
Numbers	5101–5199, 4100–4179
Axle load class	GWR Blue
Locale	Western Region
Withdrawn	April 1956 – November 1965
Disposition	8 preserved, 1 used for spares, 1 rebuilt into tender engine; remainder scrapped

The GWR 5101 Class or 'Large Prairie' is a class of 2-6-2T steam locomotives of the Great Western Railway.

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