LNWR Class G1

LNWR Class G1
No. 1384 in photographic grey livery
Type and origin
Power typeSteam
DesignerCharles Bowen Cooke
BuilderCrewe Works
Build date1901-1904
Total producedNew builds: 170
Rebuilds: 278
Total: 448
RebuilderCrewe Works
Specifications
Configuration:
​
 • Whyte0-8-0
 • UICD h2
Gauge4 ft 8+1⁄2 in (1,435 mm)
Driver dia.4 ft 5+1⁄2 in (1.359 m)
Loco weight60 long tons 15 cwt (136,100 lb or 61.7 t)
Fuel typecoal
Boiler pressure160 psi (1.10 MPa)
Cylinders2 inside
Cylinder size20½" x 24"
Performance figures
Tractive effort25,640 lbf (114.1 kN)
Career
OperatorsLNWR » LMS » BR
Power classBR, 6F
Dispositionall scrapped

The London and North Western Railway (LNWR) Class G1 was a class of 0-8-0 steam locomotives. It was a superheated version of the LNWR Class G with 8 inch piston valves.[1] The prototype was rebuilt in 1912 from No. 2653 of Class G and a further 170 new locomotives were built between 1912 and 1918. In addition, 277 older locomotives and a Class G2A locomotive[2] were rebuilt to the G1 specification between 1917 and 1934.

Numbering

Numbering is somewhat complicated. The LNWR used a numbering system based on the lowest available number, with the result that the numbers were scattered through the stock book. The London, Midland and Scottish Railway (LMS) renumbered the engines into a more logical series. However, they also then continued to rebuild engines, which retained the numbers originally assigned by the LMS. British Railways (BR) inherited 98 locomotives in 1948 and numbered them in the range 48892-49384. The number series is not continuous because some numbers in the same range were given to G2A Class locomotives.[3]

Construction and rebuilding list

Ex-LMS No. 9171 - still unrenumbered in 1951, rebuilt as a G1 in May 1912 and withdrawn not long after this photograph in February 1952
Source Dates (re)built Total (re)built (Re)built by LNWR LNWR No(s) Rebuilt by LMS LMS No(s) Notes
Prototype Class G 1912 1 1 2653 0 9154
New construction 1912–1918 170 170 ... 0 9155-9334
Class B 1917–1927 91 46 ? 45 8901…52, 9011, 9265, 9272/3, 9292, 9304/24, 9331…94
Class E 1917–1924 18 12 ... 6 ...
Class F 1921–1924 10 6 1036, 1038, 2570, 2114, 2573, 1369 4 9349/65/7/72/3/86.
Class D 1925–1934 61 0 n/a 63 9002-64, except 9011/47[4]
Class C 1925–1927 5 0 n/a 5 8953/4/62/4/6
Class G 1920–1937 91 0 n/a 91 9077-9144
Class G2A 1933 1 0 n/a 1 9047
Total: 1912–1934 448 237 211

One was rebuilt back from Class G2A to Class G1[4] as it passed through heavy overhaul and received lower pressure boilers. Some were even purchased by the Railway Operating Division.[1]

References

  1. ^ a b LNWR Society. "Goods Engines of LNWR - 'G1' Class". Archived from the original on 24 March 2023. Retrieved 9 April 2012.
  2. ^ "LNWR No. 9047". BR Database.
  3. ^ The abc of British Railways Locomotives. Vol. 3. Ian Allan. 1948. pp. 39–40.
  4. ^ a b "LMS Cooke "G1" Class 0-8-0". BR Database.. No. 9011 was rebuilt from a Class B engine, 9047 from a G2A engine.

Further reading

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Wikimedia Commons has media related to LNWR G1 Class.
  • 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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