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The National 2.5 in Gauge Association continues to support live steam passenger hauling in 2.5-inch gauge using MES tracks. They use a "scale" appropriate to the original prototype modelling both standard and narrow gauge locomotives to run on 2.5-inch track. -1:16: 3 + 1 ⁄ 2 in (89 mm) A worldwide garden railroad scale.
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.
Thus the scale and approximate prototype gauge are represented, with the model gauge used (9 mm for H0e gauge; 6.5 mm for H0f gauge) being implied. [2] The scales used include the general European modelling range of Z, N, TT, H0, 0 and also the large model engineering gauges of I to X, including 3 + 1 ⁄ 2, 5, 7 + 1 ⁄ 4 and 10 + 1 ⁄ 4-inch ...
Ridable, outdoor gauge, named according to the gauge in inches, and scale in inches per foot, for example 7 + 1 ⁄ 4 in (184 mm) gauge, 1.5 inch scale. The gauge is 7 + 1 ⁄ 2 in (190.5 mm) in the US and Canada, where the scale sometimes is 1.6 inch for diesel-type models. Private and public (club) tracks exist in many areas.
190.5 mm: 7 + 1 ⁄ 2 in: See 7 + 1 ⁄ 2 in (190.5 mm) gauge ridable miniature railways: 210 mm 8 + 1 ⁄ 4 in: See 8 + 1 ⁄ 4 in (210 mm) gauge ridable miniature railways: 229 mm 9 in: See 9 in (229 mm) gauge ridable miniature railways: England: Railway built by minimum gauge pioneer Sir Arthur Heywood, later abandoned in favor of 15 in (381 ...
At present [when?] the choice of gauge is limited to two out of three of 1,435 mm (4 ft 8 + 1 ⁄ 2 in) and broad gauges 1,520 mm (4 ft 11 + 27 ⁄ 32 in) and 1,676 mm (5 ft 6 in). With narrow gauges such as 1,000 mm ( 3 ft 3 + 3 ⁄ 8 in ) as found at Zweisimmen , Switzerland, there is less room between the wheels for the gauge change ...
The TSI Rolling Stock (2002/735/EC) has taken over the UIC Gauges definitions defining Kinematic Gauges with a reference profile such that Gauges GA and GB have a height of 4.35 m (14 ft 3 in) (they differ in shape) with Gauge GC rising to 4.70 m (15 ft 5 in) allowing for a width of 3.08 m (10 ft 1 in) of the flat roof. [7]
Comparison of 4 ft 8 + 1 ⁄ 2 in (1,435 mm) standard gauge (blue) and 3 ft 6 in (1,067 mm) (red) width; the difference is 14.5 in (370 mm), or about 26 per cent of standard gauge. 1,067 mm ( 3 ft 6 in ) between the inside of the rail heads, its name and classification vary worldwide and it has about 112,000 kilometres (70,000 mi) of track.