NER Class W1

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NER Class W1
LNER Class A6
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
Specifications
Configuration 4-6-2T
UIC class 2′C1′ n2t / 2′C1′ h2t
Gauge 4 ft 8 12 in (1,435 mm)
Leading dia. 3 ft 1 14 in (0.946 m)
Driver dia. 5 ft 1 14 in (1.556 m)
Trailing dia. 3 ft 9 14 in (1.149 m)
Length 43 ft 10 34 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:
 • Firegrate 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 34-inch (222 mm) piston valves
Performance figures
Tractive effort 22,830 lbf (101.55 kN)
Career
Operators
Power class BR: 4P
Axle load class LNER/BR: Route availability 4
Withdrawn 1947–1953
Disposition All scrapped
[1]

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.

Modifications[edit]

Seven of the locomotives were fitted with superheaters between 1937 and 1944.[2]

British Railways[edit]

One locomotive was withdrawn in 1947 but the remaining nine passed to British Railways in 1948 and were numbered as follows:

  • Superheated: 69791-69793 and 69796-69797
  • Non-superheated: 69794-69795 and 69798

Withdrawal[edit]

One locomotive was withdrawn in 1947 and the others had all been withdrawn by the end of 1951. None are preserved.

Table of locomotives[3]
NER no. Date rebuilt Date superheated LNER 1946 No. BR No. Date withdrawn Notes
686 May 1915 May 1944 9790 Jun 1947
687 Jan 1917 May 1943 9791 69791 Aug 1951
688 Sep 1914 Dec 1944 9792 69792 Feb 1948 Withdrawn before BR number applied
689 May 1915 Aug 1937 9793 69793 Apr 1951
690 Aug 1916 9794 69794 Aug 1951
691 Jun 1915 9795 69795 Jul 1950
692 May 1916 Sep 1937 9796 69796 Mar 1953
693 Feb 1916 Jan 1937 9797 69797 Aug 1951
694 May 1915 9798 69798 Feb 1951
695 Jul 1915 Jan 1937 9799 69799 Feb 1950 Withdrawn before BR number applied

References[edit]

  • Fry, E. V., ed. (April 1964). Locomotives of the L.N.E.R., part 7: Tank Engines - Classes A5 to H2. Kenilworth: RCTS. ISBN 0-901115-13-4. 

External links[edit]