Gn15

Gn15 is a term that can refer to a few different contexts, but it is most commonly associated with the category of model railroading known as "Gn15." Specifically, Gn15 refers to a scale model railroading concept where model trains operate on a narrow gauge layout, typically modeled to represent a fictional or real narrow gauge railway in 15-inch gauge scale. In Gn15, the models are usually built to a scale of 1:20.