LNWR Class B

This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources. Find sources: "LNWR Class B" – news · newspapers · books · scholar · JSTOR (October 2016)

LNWR Class B
No. 1881 (later LMS 8900) in photographic grey livery - classified B from 1911
Type and origin Power type Steam Designer Francis Webb Builder Crewe Works Build date 1901-1904 Total produced 170
Specifications Configuration: ​  • Whyte 0-8-0  • UIC D n4v Gauge 4 ft 8+1⁄2 in (1,435 mm) Driver dia. 4 ft 5+1⁄2 in (1.359 m) Loco weight 53 long tons 10 cwt (119,800 lb or 54.4 t) Fuel type coal Boiler pressure 200 psi (1.38 MPa) Cylinders 4, compound High-pressure cylinder (2 outside) 15" x 24" Low-pressure cylinder (2 inside) 20+1⁄2" x 24"
Career Operators LNWR » LMS Disposition 26 rebuilt to Class E 1904–08 10 rebuilt to Class F 1906–08 32 rebuilt to Class G 1906–17 91 rebuilt to Class G1 1917–27 11 scrapped 1921–28

The London and North Western Railway (LNWR) Class B was a class of 0-8-0 steam locomotives introduced in 1901.^[1] A development of the three-cylinder compound Class A (though this letter classification was not introduced until 1911), they had a 4-cylinder compound arrangement. 170 were built between 1901 and 1904.