ScaleSeven

ScaleSeven (S7) is a set of finescale model railway standards for 1:43.5 (7 mm scale) using true-to-prototype track and wheel standards. It is principally used to model British standard gauge (4 ft 8+1⁄2 in (1,435 mm)), Irish Broad Gauge (5 ft 3 in (1,600 mm)), or Great Western broad gauge (7 ft (2,134 mm)).

ScaleSeven (S7)
Scale	7 mm per foot
Scale ratio	1:43.5
Standard(s)	ScaleSeven[1]
Model gauge	33 mm (1.3 in) (standard)[1] 36.75 mm (1.447 in) (Irish)[2] 49.2 mm (1.937 in) (Brunel)[3][4]
Prototype gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge 5 ft 3 in (1,600 mm) Irish gauge 7 ft (2,134 mm) Brunel gauge
Website	http://www.scaleseven.org.uk

See also

• Rail transport modelling scales
• Model railway scales