O14

0-14
A scene from 0-14 layout Le Petit Depot by Escadrille St Michel
Scale	7mm to 1ft
Scale ratio	1:43
Model gauge	14mm
Prototype gauge	2'

For the U.S. Navy submarine, see USS O-14 (SS-75).

O14 is a set of model railway standards for accurately modelling 2' Narrow gauge railways in 1:43.5 (7 mm scale) using 14 mm gauge track.

The first published O14 standards appeared in "Model Railway Constructor" magazine, September 1951. The article was titled "A Narrow Gauge Layout" and was by Douglas Clayton. He advocated HO standards, less 2.5mm coupled with coarse scale OO wheelsets set to 12.5mm back to back. A subsequent article in 1953, provided details of his layout. Very little more happened regards the development of O14 until Roy Link published a new set of standards (1993 - revised 1994) in his magazine "Narrow Gauge and Industrial Railway Modelling Review". They were developed for his range of O14 kits - now produced by David Janes under the name KBscale. They are based on the proven 4mm scale EM standards (BRMSB) and are reasonably close to exact scale especially considering the variations to be found in prototype nominal 2′ gauge railways.

This scale/gauge combination is supported by the 7mm Narrow Gauge Association.

Related scales

O gauge is used for modelling standard gauge railways in 7 mm scale, with ScaleSeven the accurate scale and complementary set of standards to this. Other 7 mm scale narrow gauge model railway gauges include: O16.5, Oe and O21.

External links

• The official O14 Group website (includes published standards)
• Yahoo O14 Discussion Group