In railway modelling, G scale or G gauge, also called large scale (45 mm (1.772 inches)), is a track gauge which is often used for outdoor garden railways because of its size and durability. G scale trains use a fixed track gauge of 45 mm (1.772 inches) to accommodate a range of rail transport modelling scales between narrow gauge (~1:13‒1:19‒1:20), metre gauge (1:22.5), Playmobil trains (~1:24), and standard gauge (~1:29–1:32).
In railway modelling, G scale or G gauge, also called large scale (45 mm (1.772 inches)), is a track gauge which is often used for outdoor garden railways because of its size and durability. G scale trains use a fixed track gauge of 45 mm (1.772 inches) to accommodate a range of rail transport modelling scales between narrow gauge (~1:13‒1:19‒1:20), metre gauge (1:22.5), Playmobil trains (~1:24), and standard gauge (~1:29–1:32).
Source: Wikipedia "G scale" · CC BY-SA 4.0
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