NER Class S

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 NER Class S1, except for the smaller wheels of the former.

NER Class S LNER Class B13
2010 with the Royal Train (Date and location unknown)
Type and origin Power type Steam Designer Wilson Worsdell Builder Gateshead Works Build date 1899–1909 Total produced 40
Specifications Configuration: ​  • Whyte 4-6-0  • UIC 2′C n2, later 2′C h2 Leading dia. 3 ft 7+1⁄4 in (1.099 m) Coupled dia. 6 ft 1+1⁄4 in (1.861 m) Wheelbase 50 ft 8+1⁄4 in (15.450 m) ​  • Engine 26 ft 0+1⁄2 in (7.938 m)  • Tender 12 ft 8 in (3.861 m) Length 61 ft 0+3⁄4 in (18.612 m)[1] Axle load 19.70 long tons (20.02 t) Adhesive weight 48.10 long tons (48.87 t) Loco weight 64.30 long tons (65.33 t) Tender weight 43.50 long tons (44.20 t) Total weight 107.80 long tons (109.53 t) Fuel capacity 5.00 long tons (5.08 t) Water cap. 3,940 imp gal (17,900 L; 4,730 US gal) Firebox: ​  • Grate area 23 sq ft (2.1 m2) Boiler LNER diagram 54 Boiler pressure 160 psi (1.1 MPa) Heating surface: ​  • Firebox 120 sq ft (11 m2)  • Tubes 884 sq ft (82.1 m2)  • Flues 379 sq ft (35.2 m2)  • Total surface 1,659 sq ft (154.1 m2) Superheater: ​  • Type Schmidt  • Heating area 276 sq ft (25.6 m2) Cylinders Two, outside Cylinder size 20 in × 26 in (508 mm × 660 mm) Valve gear Stephenson Valve type 8+3⁄4-inch (222 mm) piston valves (first 8 built with sides valves, but altered 1901–21)
Performance figures Tractive effort 19,309 lbf (85.89 kN)
Career Operators North Eastern Railway London & North Eastern Railway Withdrawn 1928–1938 Disposition All scrapped

Design

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.

Modifications

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.^[2]

Numbering

Table of locomotives ^[3][4]

NER No.	Date built	Date superheated	Date withdrawn	Notes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

Withdrawal

They were withdrawn between 1928 and 1938.