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2 mm scale, often 2 mm finescale is a specification used for railway modelling, [1] largely for modelling British railway prototypes. [citation needed] It uses a scale of 2 mm on the model to 1 foot on the prototype, which scales out to 1:152. [1] The track gauge used to represent prototype standard gauge (4 feet 8 + 1 ⁄ 2 inches) is 9.42 mm ...
1:150 1:160: 9 mm (0.354 in) The most popular scale in Japan. For models of Shinkansen high speed trains and other systems using standard gauge track, the international N scale standard ratio of 1:160 is commonly used. TT9: 1:120: 9 mm (0.354 in) Used also in New Zealand. HOn 2 + 1 ⁄ 2: 1:87: 9 mm (0.354 in) Used for 2 ft 6 in (762 mm) narrow ...
Finescale standards or Fine Standards [1] are model railway standards that aim to be close to the prototype dimensions. Reduction in toylike, overscale flanges, pointwork , etc. In Britain it is particularly used because small British prototypes meant that track gauge is underscale.
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Protofour or P4 is a set of standards for model railways allowing construction of models to a scale of 4 mm to 300 mm (1 ft) (1:76.2), [1] the predominant scale of model railways of the British prototype.
3 mm scale, also known as 3 mm finescale, is a model railway scale of 3 mm : 1 ft (305 mm) used for British prototypes. Introduced as British TT gauge , it sits approximately halfway between British N gauge and OO gauge but is not as popular as either and there is no longer any mass manufacturer ready-to-run support.
On 22 May 1988, 89001 along with a Class 90, Class 91 and Class 150 left for Hamburg for display at the International Traffic and Transport Exhibition, returning on 17 June 1988. [6] [12] On 3 July 1988, the locomotive hauled the Mallard 50th anniversary special from London King's Cross, along with the return journey. [7]
An American Warner-Swasey depression position finder, illustration from a 1910 manual [13] Military instrument contracts were an important line of work for the company. [ 14 ] The U.S. government referred many problems concerning such instruments to the company during the Spanish–American War (1898). [ 14 ]