Gn15

Gn15 is a rail modelling scale, using G scale 1:22.5 scale trains running on H0/00 gauge (16.5 mm / 0.65 in) track, representing minimum gauge and miniature railways. Typical models built are between 1:20.3 and 1:24,[1] or up to 1:29.

Gn15
The Sidelines Kits Gn15 demo layout
Scale ratio1:22.5 – 1:29
Model gauge16.5 mm (0.65 in)
Prototype gauge15 in (381 mm)
(Minimum gauge railway)

Normen Europäischer Modellbahnen NEM 010 specification defines IIp for modelling 300–400 millimetres (12–16 in) gauge.[2]

History

Gn15 modeling is a relatively new phenomenon in the model railroading world. While the idea of this scale has existed for some time, as evidenced by the early efforts of Marc Horovitz, editor of Garden Railways magazine, Gn15 did not gain any measure of popularity until the Sidelines range of models. Following the advent of these kits, a few other lines of kits became available.

Initial community development took place on Yahoo email groups, but these have been superseded by the forums at Gn15.info as the primary form of communication between the far flung practitioners of this scale.

Alongside Gn15 other modeling scales have developed to cover both the modelling of minimum gauge lines in scales smaller than G, and 'miniature' lines (less than 15 in / 381 mm) in G scale.

O9 or On15 is the use of N gauge track in 7mm scale to represent a 'minimum gauge' line. In comparison GNine is the use of 9mm track to represent 'miniature' lines. GNine is a 'flexible' term for scale, referring to modelling using garden railway scales and N gauge track. GNine models can be built to scales between 7/8" and 1:35 representing anything between 5 in (127 mm) gauge and 12 1⁄4 in (311 mm) miniature railways.[3]

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References
  1. Gn15.info: What exactly is Gn15?
  2. Maßstäbe, Nenngrößen, Spurweiten [Scales, nominal sizes, gauges] (Specification) (Report). Normen Europäischer Modellbahnen NEM (in German). 2011. p. 1. 1:22,5 … von 300 [mm] bis <400 [mm] … IIp … 16,5 mm
  3. What is Gnine?

Forums

Gn15 Suppliers
  • Pepper7 - Home to the Sidelines range or locos, cars, and details
  • Schomberg Scale Models - Has a line of Gn15 items based on 'Winky', a peat hauling line in Canada
  • Tom Yorke Studios - producing a number of Gn15 models
  • Smallbrook Studio - produces a range of GN15 models based on both Sir Arthur Heywood prototypes and Rowland Emett cartoons
  • Scott Buschlen (Ontario) now has Listers available via Gn15.info.

Trackplans
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