This article is written in British English, which has its own spelling conventions (colour, travelled, centre, realise, defence), and some terms used in it are different or absent from other varieties of English. According to the relevant style guide, this should not be changed without broad consensus.
Isn't it time to split the article into two in common with the usual practice for locomotive classes on Wikipedia?--Das48 (talk) 21:13, 3 December 2011 (UTC)
Time? It's only recently written - less than 6 months. The reason they're combined is that they're basically the same class, except with enlarged bunker capacity for the 9L. They make more sense as a combined article. Andy Dingley (talk) 22:09, 3 December 2011 (UTC)