LNWR G1 Class

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. The prototype was rebuilt in 1912 from a member of Class G and a further 170 new locomotives were built between 1912 and 1918. In addition, 278 older locomotives 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.
==Construction and rebuilding list==
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 	? 	
Class E 	1917–1924 	18 	12 	... 	6 	... 	
Class F 	1921–1924 	10 	6 	1036, 1038, 2570, 2114, 2573, 1369	4 	initially: 9349/65/7/72/3/86.	
Class D 	1925–1934 	63 	0 	n/a 	63 	9002-64 	
Class C 	1925–1927 	5 	0 	n/a 	5 	8953/4/62/4/6 	
Class G 	? 	91 	0 	n/a 	91 	9077-9144 	
Total: 	1912-1934 	449 	235 	see above 	214 	see above 	
Some were rebuilt back from Class G2a to Class G1 as they passed through heavy overhaul and received lower pressure boilers. Some were even purchased by the Railway Operating Division (ROD).
==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
Category:0-8-0 steam locomotives
Category:LNWR locomotives
Category:Steam locomotives
Category:Crewe Works locomotives
Category:Locomotives
Category:Tender locomotives
Category:0-8-0 locomotives
Category:Standard gauge locomotives
Category:Standard gauge steam locomotives of Great Britain
Category:Built in 1901
Category:Built in 1902
Category:Built in 1903
Category:Built in 1904