What is On30?
On30 basically is an O scale piece of equipment on HO scale track. In O scale, which is 1:48, the track is 30" apart, which happens to be the same width, or "gauge", of HO scale track. On30 stands for O scale 30" narrow gauge. This scale and gauge of model railroading is great for anyone who is tired of the rivet counting of other scales and gauges and want just have fun being creative. the locomotives and cars you make can either be based on prototypes or your equipment could be the prototype.