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NER Class S

Class of British steam locomotives

Wikipedia contributorsAdapted for Fathomly · View authors
2 min read
Source updated November 7, 2025
Image credit is listed at the end of this article.

The North Eastern Railway Class S (LNER Class B13) was a 4-6-0 type of steam locomotive designed for express passenger workings. The first example was built in 1899. They were very similar to the eventual NER Class S1, except for the smaller wheels of the former.

01Design

They were designed to reduce double heading on the East Coast Main Line. However they steamed poorly, with a smaller and shallower grate than was used even by other locomotives at the time (a problem which also affected the B14s and later, the B15s), and the 4-4-0s of the NER Class R quickly replaced them, with the 4-4-2 layout being preferred for later express passenger designs. The class were re-classified as London and North Eastern Railway Class B13 in 1923.

02Modifications

The first seven locomotives had slide valves, while the remainder had piston valves. The slide valve engines were later fitted with piston valves. Schmidt superheaters were fitted between 1913 and 1925.

03Numbering

Table of locomotives
NER
No.		Date
built		Date
superheated		Date
withdrawn		Notes
2001Jun 1899Feb 1916Jun 1931
2002Jun 1899Jul 1924Jul 1931
2003Sep 1899May 1920Jul 1931
2004Dec 1899Apr 1921Aug 1928
2005Dec 1899Nov 1916Nov 1928
2006Dec 1899Apr 1918Jun 1931
2007Mar 1900Jun 1916Oct 1928
2008May 1900Apr 1917Dec 1929
2009Jun 1900Jul 1915Jul 1931
2010Jun 1900Apr 1916Jul 1931
726Apr 1906Nov 1915Dec 1936
740Apr 1906Jul 1914Sep 1932
757Apr 1906Mar 1918May 1932
760May 1906Apr 1915Mar 1931
761Jun 1906Nov 1924Sep 1934Transferred to service stock September 1934; superheater removed; renumbered 1699 October 1946; retired May 1951.
763Jun 1906Jan 1916Apr 1929
766Jun 1906Dec 1916Oct 1931
768Jun 1906Aug 1918May 1929
775Aug 1906Dec 1920Aug 1936
1077Aug 1906Jun 1918Nov 1931
738Jun 1908Aug 1916Jul 1938
739Jun 1908Feb 1925Jul 1932
741Jun 1908May 1917Jan 1930
743Jul 1908Oct 1917May 1932
744Jul 1908Nov 1915Dec 1931
745Aug 1908Dec 1921Dec 1931
746Aug 1908Mar 1918Nov 1931
747Sep 1908Oct 1920Aug 1932
748Sep 1908Mar 1915Oct 1938
749Oct 1908Nov 1915Apr 1930
750Nov 1908Jan 1915Nov 1932
751Nov 1908Nov 1913May 1936
752Nov 1908Mar 1920Jun 1934
753Dec 1908Nov 1916Oct 1938
754Jan 1909Jul 1922Dec 1936
755Jan 1909Aug 1917Feb 1934
756Jan 1909Nov 1919Sep 1934
758Feb 1909Nov 1915May 1930
759Mar 1909Sep 1923Oct 1938
762Mar 1909Jun 1917May 1937

04Withdrawal

They were withdrawn between 1928 and 1938.

Watch videos about NER Class SExplainers and documentaries on YouTube (opens in a new tab)

Sources and credits

This article is adapted from the Wikipedia article “NER Class S”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

Images, from Wikimedia Commons:

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