LNWR Class F

The London and North Western Railway (LNWR) Class F was a class of 2-8-0 steam locomotives in service between 1906 and 1928.

LNWR Class F
No. 1273 in photographic grey livery without tender
Type and origin Power type Steam Designer George Whale Rebuilder Crewe Works Rebuild date 1906–08 Number rebuilt 10 from Class B 2 from Class E
Specifications Configuration: ​  • Whyte 2-8-0  • UIC 1′D n4vg Gauge 4 ft 8+1⁄2 in (1,435 mm) Driver dia. 4 ft 8 in (1,420 mm) Fuel type Coal Boiler 5 ft 2 in (1,575 mm) x 14 ft 6 in (4,420 mm) Boiler pressure 175 psi (1.21 MPa) Heating surface 2,180 sq ft (203 m2) Cylinders Four, two outside high-pressure, two inside low-pressure High-pressure cylinder 15 in × 24 in (381 mm × 610 mm) Low-pressure cylinder 20+1⁄2 in × 24 in (521 mm × 610 mm) Valve gear Joy
Career Operators London and North Western Railway, London, Midland and Scottish Railway Class F Power class LMS: 3F Number in class 12 Withdrawn 1921–28 Disposition 10 rebuilt to class G1 1921–25; 2 scrapped 1927–28

History

No. 1273 in photographic grey livery based on LNWR lined black livery

George Whale had rebuilt 26 of the Class B compound 0-8-0s with the addition of a leading pony truck between 1904–1908 to what would become Class E in 1911. However, from 1906 10 Class Bs were rebuilt with larger 5 ft 2 in (157 cm) diameter boilers, along with a pair of Class Es (Nos. 1038 and 647) in 1907 and 1908 respectively.

From 1921, the LNWR started rebuilding the Class Fs into Class G1 superheated 0-8-0s, and by the grouping of 1923 six had been rebuilt. The remaining six were allocated the LMS numbers 9610–5. The LMS rebuilt a further four into G1s between 1923 and 1925. The last two were withdrawn and scrapped in 1927 and 1928 without being rebuilt.

List of locomotives

LNWR no.	Origin	LMS no.	Fate	Notes
899	Rebuilt from B 1907	(9610)	Rebuilt to G1 1923	[1]
352	Rebuilt from B 1907	(9611)	Withdrawn 1927	[1]
2114	Rebuilt from B 1908		Rebuilt to G1 1922	[1]
906	Rebuilt from B 1907	(9612)	Rebuilt to G1 1923	[2]
1036	Rebuilt from B 1907		Rebuilt to G1 1921	[2]
1038	Rebuilt from E 1907		Rebuilt to G1 1921	[2]
2570	Rebuilt from B 1906		Rebuilt to G1 1921	[2]
1247	Rebuilt from B 1906	(9613)	Rebuilt to G1 1923	[3]
1273	Rebuilt from B 1906	9614	Withdrawn 1928	[4]
2573	Rebuilt from B 1908		Rebuilt to G1 1922	[4]
647	Rebuilt from E 1908	(9615)	Rebuilt to G1 1925	[5]
1369	Rebuilt from B 1907		Rebuilt to G1 1922	[6]

LMS numbers in parentheses were not carried prior to rebuilding as G1 or withdrawal.