NER Class S

NER Class S LNER Class B13
Power type	Steam
Designer	Wilson Worsdell
Build date	1899
Total produced	30
Rebuild date	1913-1925
Configuration	4-6-0
Leading wheel diameter	3 ft 7 1⁄4 in (1.099 m)
Driver diameter	6 ft 1 1⁄4 in (1.861 m)
Wheelbase	26 ft ½ in (7.938 m) engine 12 ft 8 in (3.86 m) tender 50 ft 8 1⁄4 in (15.450 m) total
Axle load	19.7 long tons (20.0 t)
Locomotive weight	64.3 long tons (65.3 t)
Tender weight	43.5 long tons (44.2 t)
Locomotive & tender combined weight	107.8 long tons (109.5 t)
Boiler	4 ft 9 in (1.45 m)
Boiler pressure	160 psi (1.1 MPa)
Firegrate area	23 sq ft (2.1 m2)
Heating surface: Tubes	884 sq ft (82.1 m2)
Heating surface: Flues	379 sq ft (35.2 m2)
Heating surface: Firebox	120 sq ft (11 m2)
Heating surface: Total	1,659 sq ft (154.1 m2)
Superheater area	276 sq ft (25.6 m2)
Cylinders	2 (outside)
Cylinder size	20 × 26 in (510 × 660 mm)
Valve gear	Stephenson
Tractive effort	19,309 lbf (85.89 kN)
Career	North Eastern Railway, London & North Eastern Railway
Retired	1928-1938
Disposition	all scrapped

The North Eastern Railway Class S were 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 Class S. 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, 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. They were withdrawn between 1928 and 1938.

External links

http://www.lner.info/locos/B/b13.shtml