HOn30 gauge
= HOn30 gauge
{wiki=HOn30_gauge}
HOn30 is a model railroad scale that represents a narrow gauge railway system. In this scale, the "H" stands for "HO" scale, which is 1:87 scale (1 inch on the model represents 87 inches in reality), while "n30" indicates that it models railways that have a track gauge of 30 inches.