LNWR Jubilee Class

The London and North Western Railway (LNWR) Jubilee Class was a class of 4-4-0 4-cylinder compound locomotives by F.W. Webb. A total of forty were built from 1897–1900.

LNWR Jubilee Class
No.1501 Jubilee
Type and origin Power type Steam Designer F.W. Webb Builder Crewe Works Build date 1897–1900 Total produced 40
Specifications Configuration: ​  • Whyte 4-4-0  • UIC 2′B n4v Gauge 4 ft 8 1⁄2 in (1,435 mm) Leading dia. 3 ft 9 in (1.143 m) Driver dia. 7 ft 1 in (2.159 m) Loco weight 54.50 long tons (55.37 t) Boiler pressure 200 psi (1.38 MPa) 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
Performance figures Tractive effort 80%: 29,152 lbf (129.7 kN)
Career Operators LNWR · LMS Power class LMS: 2P Number in class 1 January 1923: 9 Numbers LNWR: 1901–1940; LMS: 5110–5117 Withdrawn 1923–1925 Disposition All scrapped

Slightly unusually for the LNWR, the class received a number series, this being 1901–1940.

As with other Webb compounds, they were mechanically unreliable. As a result, George Whale rebuilt these as two cylinder simple locomotives of the Renown Class, starting with 1918 Renown in 1908. Rebuilt engines retained their numbers. Rebuilding continued so that at the grouping of 1923, only 9 Jubilees remained. These were 1903/4/8/11/12/15/23/27/29. 1908 Royal George was withdrawn in January 1923, but the remaining eight were allocated the LMS numbers 5110–5117, in sequence. Two, 1904 Rob Roy and 1923 Agamemnon were withdrawn 1923, without receiving new numbers. The LMS rebuilt the remaining six into Renowns in 1924, making the class extinct. (Their subsequent history is discussed at LNWR Renown Class).

No.1912 Colossus passing thought Harrow and Wealdstone station c.1900