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Model Railroad Term HOn3 Explained

Those new to the hobby (and some of us oldies) can get easily confused with the many railroad terms used. The use of a lower case letter and a number when referring to model railroad scales is type of thing that creates confusion.

An example is the model railroad term HOn3.

In the case of HOn3 it describes the modeling scale and also the track gauge used for a particular model pike. The “n” refers to narrow gauge and in the case of HOn3 the 3 represents three feet. (Standard gauge track has rails 4’8-1/2″ apart.)

Other variations include Gn3, On3, HOn2-1/2, and Nn3.

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