Question by Joshua F: i want to start collecting model trains, but i dont understand the diffrent types, like HO, G, and stuff, thx.?
Answer by mike1942f
Mostly it has to do with size but also different designations in different parts of the world. All are motor driven, operable on tracks. O is the size of Lionel and American Flyer in the US, popular about the time of WWII and ten years after. Track width is about 2″. HO is half O and is intended for smaller layouts, track width is about 1″. N is smaller and for the same reason of layout size. G goes in the other direction and to my eye is about 3 times O and is Garden – lines intended to be used outdoors, so bigger scale. There are larger ones in real steam and different european sizes.
Actually, the ones that come up on Antiques Roadshow most often are not the operating trains at all, but the cast iron and stamped sheet metal play toys of 1890-1920 which are 4 to 6 inches tall.
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