2-8-2: Difference between revisions

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The 2-8-2 wheel arrangement was rarely, but successfully, used on British rails. [[Nigel Gresley]] of the [[London & North Eastern Railway]] (LNER) designed two Mikado types of note:
* The [[LNER Class P1|Class P1]] was a freight derivative of his famed [[LNER Class A1|Class A1]] [[4-6-2]], inspired by the [[Pennsylvania Railroad]]'s twin [[Pennsylvania Railroad class K4|K4s]] 4-6-2 and [[Pennsylvania Railroad class L1s|L1s]] 2-8-2 locomotives. Two were built, but there was never really much call for their ability and they remained under-utilised throughout their short existence.<ref>[http://www.lner.info/locos/P/p1.shtml LNER Encyclopedia - The Gresley P1 Mineral 2-8-2 (Mikado) Locomotives] - retrieved 26 October 2006. [https://web.archive.org/web/20130716031756/http://www.lner.info/locos/P/p1.shtml Archived] 21 June 2013.</ref>
* Gresley's other class of Mikados was his [[LNER Class P2|Class P2]]. These were express passenger locomotives, rather more inspired by European influences than American. They were built to haul heavy express trains in hilly terrain north of [[Edinburgh Waverley railway station|Edinburgh]], where Gresley thought the additional adhesion possible with a 2-8-2 might serve well. Unfortunately, poor self-centering on the leading truck meant that the leading driving wheels wore against the rails on tighter curves, being hard on both track and wheels. Gresley's successor [[Edward Thompson (engineer)|Edward Thompson]] [[LNER Thompson Class A2/2|converted the Class P2s]] into [[4-6-2]] Pacifics.<ref>[http://www.lner.info/locos/P/p2.shtml LNER Encyclopedia - The Gresley P2 Passenger 2-8-2 (Mikado) Locomotives] - retrieved 26 October 2006</ref> In June 2014, a new Class P2 Mikado locomotive, [[LNER P2 Class 2007 Prince of Wales|2007 ''The Prince of Wales'']], intended to work both on mainline and preserved railways, was under construction by the P2 Steam Locomotive Company.<ref>[http://www.p2steam.com Welcome to the project to build the new Gresley class P2 No. 2007 Prince of Wales] (Accessed on 29 September 2016</ref>
 
The [[Great Western Railway]] (GWR) operated a class of 54 2-8-2T engines that had been rebuilt from 2-8-0T locomotives by [[Charles Collett]], chief mechanical engineer of the GWR. As early as 1906, the chief mechanical engineer at the time, [[George Jackson Churchward|George Churchward]], planned a class of Mikado tank engines to handle heavy [[coal]] trains in [[South Wales]]. The plan was abandoned, however, as it was feared they would be unable to handle the sharp curves present on Welsh mineral branches. Instead, Churchward designed the [[GWR 4200 Class|4200 Class]] of [[2-8-0]] tank engines, of which nearly 200 were built.