The chimney (smokestack or stack in American and Canadian English) is the part of a steam locomotive through which smoke leaves the boiler. Steam locomotive exhaust systems typically vent cylinder exhaust through the chimney to enhance draught through the boiler. Chimneys are designed to carry exhaust steam and smoke clear of the driver's line of sight while remaining short enough to clear
Jan 09, 2020 · To the 3.75" scale engines you can add the following: MEG Steam (now defunct) Wendy - Liming European style industrial switcher, hackworth valve gear and marine type boiler. Uncle Sam - Liming Americanized version of the Wendy, resembling a Porter catalog switcher with saddle tank and diamond stack. Both engines designed by Dougal Hubner.