GWR 6000 Class

Specifications
Specifications
Configuration:;
• Whyte	4-6-0
• UIC	2′C h4
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 0 in (0.914 m)
Driver dia.	6 ft 6 in (1.981 m)
Minimum curve	8 chains (530 ft; 160 m) normal,; 7 chains (460 ft; 140 m) slow
Length	68 ft 2 in (20.78 m) over buffers
Width	8 ft 11+1⁄2 in (2.731 m)
Height	13 ft 4+3⁄4 in (4.083 m)
Axle load	22 long tons 10 cwt (50,400 lb or 22.9 t); (25.2 short tons) full
Adhesive weight	67 long tons 10 cwt (151,200 lb or 68.6 t); (75.6 short tons) full
Loco weight	89 long tons 0 cwt (199,400 lb or 90.4 t); (99.7 short tons) full
Tender weight	46 long tons 14 cwt (104,600 lb or 47.4 t); (51.2 short tons) full
Total weight	135 long tons 14 cwt (304,000 lb or 137.9 t); (152.0 short tons)
Fuel type	Coal
Fuel capacity	6 long tons 0 cwt (13,400 lb or 6.1 t); (6.7 short tons)
Water cap.	4,000 imp gal (18,000 L; 4,800 US gal)
Boiler	GWR Standard No. 12
Boiler pressure	250 lbf/in2 (1.72 MPa)
Cylinders	Four: two inside, two outside
Cylinder size	16+1⁄4 in × 28 in (413 mm × 711 mm)
Valve gear	Inside cylinders: Walschaerts; Outside cylinders: derived from inside cylinders via rocking bars

Type and origin
Type and origin
Power type	Steam
Designer	Charles Collett
Builder	GWR Swindon Works
Order number	Lots 243, 267, 309
Build date	1927–1928 (20), 1930 (10), 1936 (1)
Total produced	31

6000 *King* Class
6000 King Class
	6024 King Edward I at Didcot Railway Centre in June 1994
Power type
Type and origin
Power type	Steam
Designer	Charles Collett
Builder	GWR Swindon Works
Order number	Lots 243, 267, 309
Build date	1927–1928 (20), 1930 (10), 1936 (1)
Total produced	31
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-0
• UIC	2′C h4
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 0 in (0.914 m)
Driver dia.	6 ft 6 in (1.981 m)
Minimum curve	8 chains (530 ft; 160 m) normal,; 7 chains (460 ft; 140 m) slow
Length	68 ft 2 in (20.78 m) over buffers
Width	8 ft 11+1⁄2 in (2.731 m)
Height	13 ft 4+3⁄4 in (4.083 m)
Axle load	22 long tons 10 cwt (50,400 lb or 22.9 t); (25.2 short tons) full
Adhesive weight	67 long tons 10 cwt (151,200 lb or 68.6 t); (75.6 short tons) full
Loco weight	89 long tons 0 cwt (199,400 lb or 90.4 t); (99.7 short tons) full
Tender weight	46 long tons 14 cwt (104,600 lb or 47.4 t); (51.2 short tons) full
Total weight	135 long tons 14 cwt (304,000 lb or 137.9 t); (152.0 short tons)
Fuel type	Coal
Fuel capacity	6 long tons 0 cwt (13,400 lb or 6.1 t); (6.7 short tons)
Water cap.	4,000 imp gal (18,000 L; 4,800 US gal)
Boiler	GWR Standard No. 12
Boiler pressure	250 lbf/in2 (1.72 MPa)
Cylinders	Four: two inside, two outside
Cylinder size	16+1⁄4 in × 28 in (413 mm × 711 mm)
Valve gear	Inside cylinders: Walschaerts; Outside cylinders: derived from inside cylinders via rocking bars
Tractive effort
Performance figures
Tractive effort	40,300 lbf (179.3 kN) original,; 39,700 lbf (176.6 kN) after 1st overhaul
Operators
Career
Operators	Great Western Railway; British Railways;
Class	6000 King-class
Power class	GWR: Special; BR: 8P
Number in class	30
Numbers	6000–6029
Official name	King-class
Axle load class	GWR: Double Red
Locale	Western Region
Withdrawn	1936 (1), 1962 (30)
Preserved	6000, 6023, 6024
Disposition	Three preserved, remainder scrapped.

The Great Western Railway (GWR) 6000 Class or King Class is a class of 4-6-0 steam locomotives designed for express passenger work and introduced in 1927. They were the largest locomotives built by the GWR, apart from the unique Pacific (The Great Bear). The class was named after kings of the United Kingdom and of England, beginning with the then reigning monarch, King George V, and going back through history. They handled the principal GWR expresses on the main line from London to the West of England and on the Chiltern line to Birmingham and Wolverhampton, until 1962 when the class was withdrawn.

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