NER Class W1

Specifications
Specifications
Configuration:;
• Whyte	4-6-2T
• UIC	2′C1′ n2t / 2′C1′ h2t
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Leading dia.	3 ft 1+1⁄4 in (0.946 m)
Driver dia.	5 ft 1+1⁄4 in (1.556 m)
Trailing dia.	3 ft 9+1⁄4 in (1.149 m)
Length	43 ft 10+3⁄4 in (13.379 m)
Loco weight	Saturated: 78.00 long tons (79.25 t; 87.36 short tons); Superheated: 79.00 long tons (80.27 t; 88.48 short tons);
Fuel type	Coal
Fuel capacity	4.00 long tons (4.06 t; 4.48 short tons)
Water cap.	1,893 imp gal (8,610 L; 2,273 US gal)
Firebox:
• Grate area	23 sq ft (2.1 m2)
Boiler pressure	175 lbf/in2 (1.21 MPa)
Cylinders	Two, inside
Cylinder size	19 in × 26 in (483 mm × 660 mm)
Valve gear	Stephenson
Valve type	8+3⁄4-inch (222 mm) piston valves

Type and origin
Type and origin
Power type	Steam
Designer	Wilson Worsdell / Vincent Raven
Builder	Gateshead Works
Build date	1907–1908
Total produced	10
Rebuild date	1914–1917
Number rebuilt	10

NER Class W1
LNER Class A6
NER Class W1 ; LNER Class A6
Power type
Type and origin
Power type	Steam
Designer	Wilson Worsdell / Vincent Raven
Builder	Gateshead Works
Build date	1907–1908
Total produced	10
Rebuild date	1914–1917
Number rebuilt	10
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-2T
• UIC	2′C1′ n2t / 2′C1′ h2t
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Leading dia.	3 ft 1+1⁄4 in (0.946 m)
Driver dia.	5 ft 1+1⁄4 in (1.556 m)
Trailing dia.	3 ft 9+1⁄4 in (1.149 m)
Length	43 ft 10+3⁄4 in (13.379 m)
Loco weight	Saturated: 78.00 long tons (79.25 t; 87.36 short tons); Superheated: 79.00 long tons (80.27 t; 88.48 short tons);
Fuel type	Coal
Fuel capacity	4.00 long tons (4.06 t; 4.48 short tons)
Water cap.	1,893 imp gal (8,610 L; 2,273 US gal)
Firebox:
• Grate area	23 sq ft (2.1 m2)
Boiler pressure	175 lbf/in2 (1.21 MPa)
Cylinders	Two, inside
Cylinder size	19 in × 26 in (483 mm × 660 mm)
Valve gear	Stephenson
Valve type	8+3⁄4-inch (222 mm) piston valves
Tractive effort
Performance figures
Tractive effort	22,830 lbf (101.55 kN)
Operators
Career
Operators	North Eastern Railway; London and North Eastern Railway; British Railways;
Power class	BR: 4P
Axle load class	LNER/BR: Route availability 4
Withdrawn	1947–1953
Disposition	All scrapped

The NER Class W1 was a 4-6-2T steam locomotive of the North Eastern Railway. The class was introduced in 1914 as a rebuild of Wilson Worsdell's NER Class W 4-6-0T (introduced 1907). At the 1923 Grouping, they all passed to the London and North Eastern Railway, who placed them in their Class A6.