Talk:GWR Power and Weight Classification
I’m a complete ignoramus on the subject and so am posting it here for others to take forward, if relevant. I saw on Nat Pres a thread which touches on the origins of route availability after nationalisation, which states: “..in 1940, the Civil Engineer's Department of the LNER Southern Area (ex-GN/GC/GE lines) devised a system of Route Availability (RA) classes. This was in a situation where WW2 was requiring engines to be assessed for use on lines outside their traditional areas [..] The initiative was successful and was extended in 1947 to the whole of the LNER, with the RA number henceforth being shown on locos [..] BR decided in due course to adopt the LNER system, although I'm not sure that it became network-wide before the 1970s.” It's not referenced, but there's a link.--Patrick Hearn (talk) 22:09, 2 September 2021 (UTC)
- I'm no expert on the subject either. I notice that the Great Western Railway Power and Weight Classification article on Wikipedia states that "In 1949, BR decided to adopt the London, Midland and Scottish Railway (LMS) system of power classification for all locomotives." There's no citation, so I'm leaving our own article referring to it being based on the LNER system as it stands until something more definite turns up to say it's wrong. --Robin (talk) 14:53, 4 September 2021 (UTC)