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  2. HOn3½ gauge - Wikipedia

    en.wikipedia.org/wiki/HOn3½_gauge

    In the same scale standard-gauge trains are modelled on 16.5 mm (0.65 in) gauge track, known as HO scale. Sn3½ is also used to represent 3 ft 6 in (1,067 mm), as the gauge is the same as HO scale. HOm uses the same 12mm gauge track to represent metre-gauge (3ft3.37in) railways.

  3. Rail transport modelling scales - Wikipedia

    en.wikipedia.org/.../Rail_transport_modelling_scales

    a foreshortening technique using N scale model trains in the background (distance) with HO scale in the foreground. mixing 1:43 scale, 1:48 scale and 1:50 scale die-cast models with O scale model trains. using Matchbox cars (1:64 to 1:100) with HO scale and S scale. mixing OO scale British model trains with HO scale models. Both scales run on ...

  4. List of scale model sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_scale_model_sizes

    Model railways (HO/h0) Exact HO scale (half O of 7 mm = 1 foot) 1:87: 3.503 mm: Model railways (HO/h0) Civilian and military vehicles. Often used to describe HO scale. Original nominal 25 mm figure scale; though a 6-foot human in 1:87 is closer to 21 mm. 1:82: 3.717 mm An intermediate scale (HO/OO) intended to apply to both HO and OO scale ...

  5. Scale ruler - Wikipedia

    en.wikipedia.org/wiki/Scale_ruler

    A scale ruler is a tool for measuring lengths and transferring measurements at a fixed ratio of length; two common examples are an architect's scale and engineer's scale.In scientific and engineering terminology, a device to measure linear distance and create proportional linear measurements is called a scale.

  6. HO scale - Wikipedia

    en.wikipedia.org/wiki/HO_scale

    HO scale steam locomotives at the N&W RR museum in Crewe, Virginia. HO is the most popular model railroad scale in both continental Europe and North America, whereas OO scale (4 mm:foot or 1:76.2 with 16.5 mm track) is still dominant in the United Kingdom. There are some modellers in the United Kingdom who model in HO scale and the British 1:87 ...

  7. HOn30 gauge - Wikipedia

    en.wikipedia.org/wiki/HOn30_gauge

    The term HOn30 (and sometimes HOn2½) is generally used when modelling American prototypes while H0e is used for European prototypes. In Britain, the term OO9 is used. [1] All these terms refer to models of narrow-gauge railways built to the world's most popular model railway scale of HO (1:87) but using a track gauge of 9 mm (0.354 in)—the gauge used for N scale models of standard-gauge ...

  8. List of rail transport modelling scale standards - Wikipedia

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

    The 37.5 mm length is not derived by a certain scale ratio. While HO scale is a 1:87 scale (3.5 mm to 1 foot), resulting in a 16.5 mm (0.65 in) gauge from real life prototype 1,435 mm (4 ft 8 + 1 ⁄ 2 in) standard gauge standard gauge. Conversely, modeling standard gauge in Lego trains would yield a scaling of (37.5:1435 =) 1:38.3.

  9. 3 ft gauge rail modelling - Wikipedia

    en.wikipedia.org/wiki/3_ft_gauge_rail_modelling

    On3 – Using O scale (1:48 ratio) with 0.75 in (19.05 mm) gauge track. Probably the second most popular scale. F scale – using 1:20.3 ratio with 45 mm (1.772 in) gauge track. This scale uses the same gauge as, and is derived from the popular G scale. It is the largest popular scale/gauge combination, and is suitable for use in the garden.