OO9, often also denoted as 009 or 00-9 and commonly pronounced as Double-Oh Nine, is a model railway scale and gauge combination of 4 mm scale and 9 mm (0.354 in) gauge tracks, which models a prototype track gauge of 2 ft 3 in (686 mm).

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How to build an OO9 / HoE Gauge Model Railway Layout - Part 1 Help Subtitle & Caption our videos: http://www.youtube.com/timedtext_cs_p... Kato chassis: http://amzn.to/2qGo2Wp Hello And Welcome...

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If you're looking for a fascinating and rewarding hobby, then look no further than OO9 model railways. These are miniature train sets that run on narrow gauge tracks, typically in a scale of 4mm to 1 foot, and they offer a wide range of benefits to those who enjoy creating intricate layouts and watching their trains op

Feb 28, 2025 · Corrish in 'OO9' scale. 28th February 2025. Corrish is a 'OO9' gauge layout built as a ‘greatest hits’ of the old Corris Railway, a 2ft 3in narrow gauge slate railway in Mid-Wales modelled in 'OO9' scale. See it at Model World LIVE 2025.

What is OO9? OO9 is 4mm to the foot scale (that is OO or 1/76) but using 9mm track gauge (the same size as N gauge). This is narrow gauge modelling and is meant to represent 2ft gauge in real life.