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Does anyone know what 'PDN' stands for on the locomotive's motion bracket?

'Paddington'? EdJogg 02:40, 3 November 2007 (UTC)[reply]

An anon editor added "(Nicknamed the 'Speedy')" yesterday.

I have moved this here as uncited, since it could prove tricky to research online if mirror articles start including the phrase.

EdJogg (talk) 10:00, 17 August 2009 (UTC)[reply]

The name `Speedy' was used for a live steam model based on this class in a book by `LBSC' - I have never heard that it was used a nickname by railway workers. Locomotive nicknames concocted by enthusiasts after locomotives were withdrawn from service should surely not be in Wikipedia articles. Barney Bruchstein (talk) 22:14, 10 May 2013 (UTC)[reply]

It's not in the article, which hasn't been edited since 11 December 2012,‎ and that was a bot edit: the last proper edit was 26 September 2012‎. Did you see this on a different article, but have come to this talk page by mistake? --Redrose64 (talk) 22:46, 10 May 2013 (UTC)[reply]

LBSC's own book is title Speedy, GW 0-6-0 tank engine in 5 inch Gauge., so we have a source for this being GWR, and this is the only similar engine class. Although book publication was later, the original magazine articles were 1950.Andy Dingley (talk) 08:47, 11 May 2013 (UTC)[reply]

But that surely is the nickname given to the model, presumably by the book's author. With the phrase "... should surely not be in Wikipedia articles", Barney Bruchstein appears to be objecting to an assertion in a Wikipedia article. --Redrose64 (talk) 11:54, 11 May 2013 (UTC)[reply]

My point is that the association (for the model, if not the original) is sourced and contemporary, not post-withdrawal fancruft. Andy Dingley (talk) 12:15, 11 May 2013 (UTC)[reply]

This site, Don Ashton, discusses the valve gear of the 1500s and the "Speedy" model. It appears that the GWR gear is a variant of the standard valve gear (the photo of the SVR example shows the union link driven directly from the crosshead pin). Ning-ning (talk) 20:38, 12 May 2013 (UTC)[reply]