S scale
Model railroad scale (1:64)
S scale (or S gauge) is a model railroad scale modeled at 1:64 scale, S scale track gauge (space between the rails) is 0.883–0.905 in (22.4–23.0 mm). S gauge trains are manufactured in both DC and AC powered varieties. S gauge is not to be confused with toy train standard gauge, a large-scale standard for toy trains in the early part of the 20th century.
History
S scale is one of the oldest model railroading scales. The earliest known 1:64-scale train was constructed from card stock in 1896. The first working models appeared in England in the early 20th century. Modeling in S scale increased in the 1930s and 1940s when CD Models marketed 3⁄16-inch model trains.
American Flyer was a manufacturer of standard-gauge and O-gauge "tinplate" trains, based in Chicago, Illinois. It never produced S-scale trains as an independent company. Chicago Flyer was purchased by A.C. Gilbert Company in the late 1930s.
The public source identifies “S scale” as model railroad scale (1:64). This brief keeps that definition visible, then builds a research path around scale, Model and railroad.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Dec 6, 2025. The linked authority identifier is Q454996. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1896.
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This entry incorporates text from “S scale” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.