North British 0-4-0 Locomotives in Great_Britain

Class G/Y9 (Locobase 20762)

Data from Richard Marden, "The Drummond Y9 (NBR Class G) 0-4-0ST Shunters" on his LNER Encyclopedia website at , last accessed 25 July 2010 and "Type Y9" diagram, also from the LNER Encyclopedia, reproduced at [].

Marsden notes that "Pug" was an alternate name for a variety of locomotives on different railways, but "the NBR reserved the name 'pug' for these engines." The Gs were Dugald Drummond's last design. Designed as dock shunters, they proved "eminently suitable" for light shunting duties on the flatter parts of the NBR as well as on docks like those at Leith..

Young NBR drivers and firemen cut their teeth on these engines, undoubtedly benefiting from the pug's low speed, but full-scale operating requirements. Marsden adds that more senior crew would step down to pugs if their health required it "or as a form of demotion for misdemeanors on the mainline. "More than one driver known for speeding, ended up spending a number of yerars shunting Y9s at Leith Docks!"

To allow the G/Y9s to work on main line, the small coal bunker behind the cab was augmented by trailing four-wheel coal cars.

Only four failed to survive to Grouping in 1923, when the LNER reclassified the other 34 as Y9s. Only one more would be withdrawn before 1953.