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  2. 7mm Narrow Gauge Association - Wikipedia

    en.wikipedia.org/wiki/7mm_Narrow_Gauge_Association

    This scale is widely used to model railways of 2 ft (610 mm), 2 ft 3 in (686 mm) and 2 ft 6 in (762 mm) gauges. [1] The use of a 16.5mm gauge allows the use of 00 gauge mechanisms and wheels. Most commercial equipment is available for this gauge. O14 Using 14mm gauge track giving an exact scale conversion for 2 ft (610 mm) gauge prototypes. [1]

  3. O scale - Wikipedia

    en.wikipedia.org/wiki/O_scale

    O scale (or O gauge) is a scale commonly used for toy trains and rail transport modelling.Introduced by German toy manufacturer Märklin around 1900, by the 1930s three-rail alternating current O gauge was the most common model railroad scale in the United States and remained so until the early 1960s.

  4. Track gauge conversion - Wikipedia

    en.wikipedia.org/wiki/Track_gauge_conversion

    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.

  5. List of rail transport modelling scale standards - Wikipedia

    en.wikipedia.org/wiki/List_of_rail_transport...

    When H0 scale was being introduced, the motors available were too large [4] to fit in scale-sized bodies and so as a compromise the scale was increased from 3.5 mm to 4 mm to the foot, but the gauge was not changed so other elements could be shared. For 00 therefore the track is about 12.5% narrower than it should be for the scale used.

  6. Rail transport modelling scales - Wikipedia

    en.wikipedia.org/.../Rail_transport_modelling_scales

    The smallest scale for O Scale is 1:58. In O scale terms, this is known as Mini-O Scale and in S Scale terms it is known as Major S Scale. O-27 scale: 1:48 (US) 31.7 mm A Lionel variant on O-scale. Has a slightly shorter profile and sharper 27 inch diameter curves (but also comes in 42, 54 and 72 inch diameter curves) than typical oversized O ...

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  8. List of narrow-gauge model railway scales - Wikipedia

    en.wikipedia.org/wiki/List_of_narrow-gauge_model...

    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 ...

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