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A worldwide garden railroad scale. Corresponds to NEM III and NMRA 3 ⁄ 4 inch. -1:12: 4 + 3 ⁄ 4 in (121 mm) North America specific scale corresponding to NMRA 1-inch scale. 1:12 is one of the most popular backyard railway scales. -1:11: 5 in (127 mm) Used outside North America. Corresponds to NEM V. One of the most popular garden railway ...
G gauge track has a spacing of 45 mm between the railheads (tracks) (c.f. 44.45 mm for 1 gauge, but that does not determine the scale to which the models are built because, to maintain a constant track width when real-life counterparts have a variety of railroad gauges, the scale has to vary.
Track gauge conversion is the changing of one railway track gauge (the distance between the running rails) to another. In general, requirements depend on whether the conversion is from a wider gauge to a narrower gauge or vice versa, on how the rail vehicles can be modified to accommodate a track gauge conversion, and on whether the gauge conversion is manual or automated.
This rail gauge was soon changed to 7 ft 1 ⁄ 4 in (2,140 mm) [105] to ease running in curves. 2,140 mm 7 ft 1 ⁄ 4 in: South Africa East London and Table Bay harbour railways England Brunel's Great Western Railway until converted to standard gauge by May 1892, See Great Western Railway The "gauge war".
Similar to G scale above, this scale also runs on 45 mm (1.772 in) gauge track, and is generally used for both indoor and garden railways of narrow-gauge prototypes. The scale of 1:24 in combination with 45 mm ( 1.772 in ) track is an attempt to model North American and UK 3 ft ( 914 mm ) narrow-gauge or 3 ft 6 in ( 1,067 mm ) gauge trains in ...
Between 1876 and 1880, most of the 6 ft lines converted to standard gauge, some having been first dual gauged with a third running rail allowing standard gauge trains to share the track, prior to the removal of the 6 ft rails. [2]
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