On2 gauge

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On2 gauge
On2 scale model of a SR&RL Coach, kitbashed from two Bachmann On30 coaches.
Scale	6.35 mm to 1 foot
Scale ratio	1:48
Model gauge	12.7 mm (0.5 in)
Prototype gauge	2 ft (610 mm)

On2 gauge is part of the hobby of rail transport modeling. The name is based on the common USA model railroad O scale ('oh' scale) of 1:48 and refers to the gauge between the rails (2 ft (610 mm) ) and the fact that it is narrow gauge, thus 'On2'.