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 typeSteam
DesignerGeorge Whale
RebuilderCrewe Works
Rebuild date1906–08
Number rebuilt10 from Class B
2 from Class E
Specifications
Configuration:
​
 • Whyte2-8-0
 • UIC1′D n4v
Gauge4 ft 8 1⁄2 in (1,435 mm)
Driver dia.4 ft 8 in (1,420 mm)
Fuel typeCoal
Boiler5 ft 2 in (1,575 mm) x
14 ft 6 in (4,420 mm)
Boiler pressure175 psi (1.21 MPa)
Heating surface2,180 sq ft (203 m2)
CylindersFour, two outside high-pressure, two inside low-pressure
High-pressure cylinder15 in × 24 in (381 mm × 610 mm)
Low-pressure cylinder20 1⁄2 in × 24 in (521 mm × 610 mm)
Valve gearJoy
Career
OperatorsLondon and North Western Railway, London, Midland and Scottish Railway
ClassF
Power classLMS: 3F
Number in class12
Withdrawn1921–28
Disposition10 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 simple addition of a leading pony truck between 1904-1908 to what would from 1911 become Class E. However, from 1906 rebuilds of Class Bs were given a larger 5'2" diameter boilers, and ten were so rebuilt. To these was added a pair of rebuilds of Class Es (Nos 1038 in 1907 and 647 in 1908).

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 to G1s, between 1923-5. The remaining pair were withdrawn in 1927 and 1928 without being rebuilt. None was preserved.

List of locomotives
LNWR no.OriginLMS no.FateNotes
899Rebuilt from B 1907(9610)Rebuilt to G1 1923[1]
352Rebuilt from B 1907(9611)Withdrawn 1927[1]
2114Rebuilt from B 1908Rebuilt to G1 1922[1]
906Rebuilt from B 1907(9612)Rebuilt to G1 1923[2]
1036Rebuilt from B 1907Rebuilt to G1 1921[2]
1038Rebuilt from E 1907Rebuilt to G1 1921[2]
2570Rebuilt from B 1906Rebuilt to G1 1921[2]
1247Rebuilt from B 1906(9613)Rebuilt to G1 1923[3]
1273Rebuilt from B 19069614Withdrawn 1928[4]
2573Rebuilt from B 1908Rebuilt to G1 1922[4]
647Rebuilt from E 1908(9615)Rebuilt to G1 1925[5]
1369Rebuilt from B 1907Rebuilt to G1 1922[6]

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

Notes
  1. Baxter 1979, p. 255.
  2. Baxter 1979, p. 256.
  3. Baxter 1979, p. 257.
  4. Baxter 1979, p. 258.
  5. Baxter 1979, p. 259.
  6. Baxter 1979, p. 260.
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References
  • Baxter, Bertram (1979). Baxter, David (ed.). British Locomotive Catalogue 1825-1923, volume 2B: London and North Western Railway and its constituent companies. Ashbourne: Moorland Publishing. ISBN 0-903485-84-2.CS1 maint: ref=harv (link)

Further reading
  • Bob Essery & David Jenkinson An Illustrated Review of LMS Locomotives Vol. 2 Absorbed Pre-Group Classes Western and Central Divisions
  • Edward Talbot, The London & North Western Railway Eight-Coupled Goods Engines
  • Willie Yeadon, Yeadon's Compendium of LNWR Locomotives Vol 2 Goods Tender Engines
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