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WikiProject Trains / Locomotives (Rated C-class, Low-importance)
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DYK April 23, 2006
This article is within the scope of WikiProject Trains, an attempt to build a comprehensive and detailed guide to rail transport on Wikipedia. If you would like to participate, you can visit the project page, where you can join the project and/or contribute to the discussion. See also: WikiProject Trains to do list
C-Class article C  This article has been rated as C-Class on the project's quality scale.
 Low  This article has been rated as Low-importance on the project's importance scale.


I suggest merging this with Union Pacific 9000 Class, since those were the only class of 4-12-2 locomotives. In addition, this article goes into more detail. Expanding the other one would essentially result in two identical articles with different names. The question becomes which title to use. Hellbus (talk) 21:15, 24 March 2009 (UTC)

Done. WuhWuzDat 03:08, 9 November 2009 (UTC)
Wrong choice, surely? The article is specifically about the Union Pacific 9000 class whereas the title suggests that it is about the 4-12-2 wheel arrangement in general. The article should be at "Union Pacific 9000 Class" and "4-12-2" should either be a stub, a redirect or even not exist at all since there's nothing to say about the 4-12-2 wheel arrangement beyond that it was only used in this particular class. Dricherby (talk) 19:55, 16 August 2011 (UTC)

Cranked front driverset[edit]

> There has been debate as to whether the first driving axle of the 4-12-2 was cranked to provide clearance for the main rod connected to the second axle. Union Pacific drawings show no such crank on the first axle, and the Railway Age article says "The 67-inch drivers permit the use of a straight axle on the front drivers..." The spacing between the first and second axles was increased by 18 in (46 cm) to provide clearance. Based on the published dimensions, this means at its closest the centerline of the inside rod was 11.645 inches from the centerline of the first axle.

....Why is there a debate about this at all? Just crawl underneath the damned thing and have a look. One unit was preserved and is on open display to the public. There's no need to debate it or pick through drawings, just have someone local to the display drive out there, stick their head underneath the frame, and have a looksee. Maybe snap a photo or two for the Wiki page while they're under there. Simple solutions, people, and hell, I'd drive out there and do it myself if I lived local to the display. 2602:306:83C4:78F0:2502:CBEE:4828:9DCD (talk) —Preceding undated comment added 02:46, 18 October 2017 (UTC)