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T scale, using 3 mm gauge track to represent standard gauge railways. 1:450: 0.677 mm: Model railways (T) T scale, using 3 mm gauge track to represent 3 ft 6 in (1,067 mm) gauge railways. Hasegawa also produces plastic ship models in this scale. 1:432: 0.706 mm The scale used during World War II by the U.S. Navy for aircraft recognition. 1:426: ...
1:24 scale model of the Ford GT, at rear, behind 1:32 and nominal HO models, illustrate the traditional slot car scales. 1:24 scale is a size for automobile models such as injection-molded plastic model kits or metal die-cast toys , which are built and collected by both children and adults.
George Stephenson introduced the 1,435 mm (4 ft 8 + 1 ⁄ 2 in) gauge (including a belated extra 1 ⁄ 2 in (13 mm) of free movement to reduce binding on curves [16]) for the Liverpool and Manchester Railway, authorised in 1826 and opened 30 September 1830. The extra half inch was not regarded at first as very significant, and some early trains ...
The term N gauge refers to the track dimensions, but in the United Kingdom in particular British N gauge refers to a 1:148 scale with 1:160 (9 mm or 0.354 in) track gauge modelling. The terms N scale and N gauge are often inaccurately used interchangeably, as scale is defined as ratio or proportion of the model, and gauge only as a distance ...
European G gauge trains are built to the same II gauge scale, but with a narrow rail gauge of 45 mm (1.772 in) (the same as 1 gauge). This G gauge at 1:22.5 scale represents 1,000 mm (3 ft 3 + 3 ⁄ 8 in) metre gauge narrow-gauge railways. This scale-gauge combination is sometimes called IIm in European literature. In the UK, Gauge 2 was 2 ...
90-foot (27.43 m) radii on the elevated 4 ft 8 + 1 ⁄ 2 in (1,435 mm) standard gauge Chicago 'L'. There is no room for longer radii at this cross junction in the northwest corner of the Loop . The minimum railway curve radius is the shortest allowable design radius for the centerline of railway tracks under a particular set of conditions.
Narrower gauge railways usually cost less to build because they are usually lighter in construction, using smaller cars and locomotives (smaller loading gauge), as well as smaller bridges, smaller tunnels (smaller structure gauge). [27] Narrow gauge is thus often used in mountainous terrain, where the savings in civil engineering work can be ...
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.