Canadian National Railways

4-6-4F tank engines

Commonly called tank engines, these were actually a Forney design with the front truck equalized with the drivers, built to run as fast in reverse as forward to work in suburban service without the need to turn the engine in the opposite direction. Additionally, the firebox and brick arch were designed for the maximum efficiency to reduce smoke in the urban area. Rapid acceleration was a key feature of these steam locomotives. Cyl. 21" x 26" Drv. 63" Press.210 lbs. t.e. 32% Total weight in working order 138 tons. Coal 5 tons, water 2900 gals. ex GTR 1544 MLW #54898 1914

49 one of only six such Forney type tank engines especially built for GTR's Montreal suburban (commuter) service.
Montreal 3-29-58 Joseph Testagrose collection

Two views of 49 with suburban train at Central Station, Montreal. July 3, 1954 John Dziobko

Preserved indoors at Exporail. August 2003 Pierre Lacombe