GWR 517 Class

Specifications
Specifications
Configuration:;
• Whyte	0-4-2T
• UIC	B1 n2t
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	5 ft 0 in (1.524 m) or 5 ft 2 in (1.575 m)
Trailing dia.	3 ft 8 in (1.118 m)
Wheelbase	15 ft 6 in (4.72 m)
Length	28 ft 4+5⁄8 in (8.65 m)
Width	8 ft 2 in (2.49 m)
Height	12 ft 1+5⁄8 in (3.70 m)
Axle load	12 long tons 16 cwt (28,700 lb or 13 t); 13.0 t; 14.3 short tons full
Adhesive weight	24 long tons 16 cwt (55,600 lb or 25.2 t); 25.2 t; 27.8 short tons full
Loco weight	35 long tons 4 cwt (78,800 lb or 35.8 t); 35.8 t; 39.4 short tons full
Fuel type	Coal
Water cap.	620 imp gal (2,800 L; 740 US gal)
Firebox:
• Grate area	12.83 sq ft (1.192 m2)
Boiler	GWR 517; GWR 2021;
Boiler pressure	150 psi (10.34 bar; 1.03 MPa) or; 165 psi (1.14 MPa)
Heating surface:
• Firebox	83.14 sq ft (7.724 m2)
• Tubes	904.47 sq ft (84.028 m2)
Superheater	None
Cylinders	Two, inside
Cylinder size	15 in × 24 in (381 mm × 610 mm), later; 16 in × 24 in (406 mm × 610 mm)
Valve gear	Stephenson
Valve type	Slide valves

Type and origin
Type and origin
Power type	Steam
Designer	George Armstrong
Builder	GWR Wolverhampton Works
Order number	Lots D, E, F, G, H, I, R, S, W, Z, C2, M2, P2
Build date	1868–1885
Total produced	156

GWR 517 class
GWR 517 class
	1165 at Trumpers Crossing Halte station
Power type
Type and origin
Power type	Steam
Designer	George Armstrong
Builder	GWR Wolverhampton Works
Order number	Lots D, E, F, G, H, I, R, S, W, Z, C2, M2, P2
Build date	1868–1885
Total produced	156
Configuration:;
Specifications
Configuration:;
• Whyte	0-4-2T
• UIC	B1 n2t
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	5 ft 0 in (1.524 m) or 5 ft 2 in (1.575 m)
Trailing dia.	3 ft 8 in (1.118 m)
Wheelbase	15 ft 6 in (4.72 m)
Length	28 ft 4+5⁄8 in (8.65 m)
Width	8 ft 2 in (2.49 m)
Height	12 ft 1+5⁄8 in (3.70 m)
Axle load	12 long tons 16 cwt (28,700 lb or 13 t); 13.0 t; 14.3 short tons full
Adhesive weight	24 long tons 16 cwt (55,600 lb or 25.2 t); 25.2 t; 27.8 short tons full
Loco weight	35 long tons 4 cwt (78,800 lb or 35.8 t); 35.8 t; 39.4 short tons full
Fuel type	Coal
Water cap.	620 imp gal (2,800 L; 740 US gal)
Firebox:
• Grate area	12.83 sq ft (1.192 m2)
Boiler	GWR 517; GWR 2021;
Boiler pressure	150 psi (10.34 bar; 1.03 MPa) or; 165 psi (1.14 MPa)
Heating surface:
• Firebox	83.14 sq ft (7.724 m2)
• Tubes	904.47 sq ft (84.028 m2)
Superheater	None
Cylinders	Two, inside
Cylinder size	15 in × 24 in (381 mm × 610 mm), later; 16 in × 24 in (406 mm × 610 mm)
Valve gear	Stephenson
Valve type	Slide valves
Tractive effort
Performance figures
Tractive effort	12,635–14,780 lbf (56.20–65.74 kN)
Operators
Career
Operators	Great Western Railway
Class	517
Power class	Unclassified
Axle load class	Unclassified
Withdrawn	1904–1945
Disposition	All scrapped

The 517 Class were small 0-4-2T tank engines designed by George Armstrong for local passenger work on the Great Western Railway. They were built at Wolverhampton Works and were outshopped between 1868 and 1885. A total of 156 locomotives were built in thirteen lots, to various designs, commencing with 517–528 and ending with 1477–1488 in 1884–1885.