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OO gauge or OO scale (also, 00 gauge and 00 scale) is the most popular standard gauge model railway standard in the United Kingdom, [1] outside of which it is virtually unknown. OO gauge is one of several 4 mm-scale standards (4 mm to 1 ft (304.8 mm), or 1:76.2), and the only one to be marketed by major manufacturers.
Many names, particularly those of British origin, such as O14 and 00-9 combine the name of the scale used with the physical measurement of the gauge, i.e. the 7 mm-to-the-foot scale from standard O gauge with a rail gauge of 14 mm, giving a precise representation of 2 ft (610 mm) prototypes.
EM gauge was an earlier attempt in the 1950s to improve the inaccuracies of OO gauge, with wider, more accurate track at 18 mm (0.709 in) between the rails, but still narrower than the correct gauge. The gauge was later widened to 18.2 mm (0.717 in). The UK-based EM Gauge Society exists to supports modellers of these standards.
This gauge is represented by the EM Society (in full, Eighteen Millimetre Society). 00 track (16.5 mm) is the wrong gauge for 1:76 scale, but use of an 18.2 mm (0.717 in) gauge track is accepted as the most popular compromise towards scale dimensions without having to make significant modifications to ready-to-run models. Has a track gauge ...
The 9 mm (0.354 in) track gauge is used by N gauge model railways, a common commercial scale, which means that a selection of wheels, track, and mechanisms is readily available. 2 ft ( 610 mm ) gauge railways were common in Britain, but the gauge implied by 9 mm at 4 mm scale - 2 ft 3 in ( 686 mm ) - was quite rare - today only the Talyllyn and ...
Lima was a popular, affordable brand of 00 gauge and N gauge model railway material in the UK, more detailed H0 and N gauge models in France, Germany, Italy, Switzerland, and the United States as well as South Africa, Scandinavia and Australia. Lima also produced a small range of 0 gauge models. Lima partnered with various distributors and ...
February 13, 2025 at 6:00 AM. crisserbug/istockphoto. ... It was mostly used by press photographers; the 1942-1953 Pulitzer Prizes for photography were taken with this type of camera.
Modelling British railway prototypes is a hobby where railway modelling is applied to British prototypes. For historical reasons, British model scales have developed somewhat separately from those in other countries, and the commercial standards; 00 gauge and British N gauge are unique to British prototypes.