Caledonian 4-6-2 Locomotives in Great_Britain

Class 191 - Oban bogies (Locobase 2358)

For data see E C Poultney, "Recent Locomotive Practice on the Caledonian Railway - Part II", Engineer, Volume 132 (11 November 1921), pp. 499-500. See also Ahrons; "New 4-6-2 Type Tank Locomotives: Caledonian Railway", Locomotive Magazine, Volume XXIII [23], No 300 (15 August 1917), p. "4-6-2 Superheater Tank Locomotives, Caledonian Railway," Locomotive Magazine, Volume XXIV [24], No 306 (15 February 1918), pp. 21-22; and Wikipedia at [], last accessed 25 October 2017.. Works numbers were 21480-21491 in 1917.

William Pickersgill's inside-valve, outside-cylinder local passenger tanks. Although their power dimensions were similar to those of the 60-class 4-6-0 tender locomotives shown in Locobase 2331, these had slightly less tube and flue areas and only about half the superheater area.

Demands of war called the class to serving heavy munitions trains in the Glasgow District. With the 1918 Armistice, they were put on the Inverclyde line, which connects Glasgow with Wemyss Bay on the Firth of Clyde. Wikipedia notes that the drivers called them "Wemyss Bay Pugs", a mysterious moniker whose meaning becomes clearer when one reads another Wikipedia entry noting that "pug" was often used to describe small shunters and occasionally tank engines. (Locobase guesses that the original nickname derived from the snub-nosed, short-legged dog breed whose owners dote on the pet's amiable disposition.)

After being displaced later in their careers by larger engines, the 944s were assigned as bankers (helpers) on the notorious Beattock Bank. All but two survived long enough to be nationalized in 1948. British Railways retired those engines in 1948-1953.