| Gn15 | |
|---|---|
 The Sidelines Kits Gn15 demo layout | |
| Scale ratio | 1:22.5 – 1:29 |
| Model gauge | 16.5 mm (0.65 in) |
| Prototype gauge | 15 in (381 mm) (Minimum-gauge railway) |
Gn15 is arail modellingscale, usingG scale 1:22.5 scale trains running onH0/00 gauge (16.5 mm /0.65 in) track, representingminimum-gauge andminiature railways. Typical models built are between 1:20.3 and 1:24,[1] or up to 1:29.
Normen Europäischer Modellbahnen NEM 010 specification definesIIp for modelling 300–400 millimetres (12–16 in) gauge.[2]
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 ofGarden Railways magazine, Gn15 did not gain any measure of popularity until theSidelines range of models. Following the advent of these kits, a few other lines of kits became available.
Initial community development took place onYahooemail groups, but these have been superseded by the forums at the now defunctGn15.info as the primary form of communication between the far flung practitioners of this scale.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 than15 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 andN-gauge track. GNine models can be built to scales between 7/8" and 1:35 representing anything between5 in (127 mm) gauge and12+1⁄4 in (311 mm) miniature railways.[3]
1:22,5 … von 300 [mm] bis <400 [mm] … IIp … 16,5 mm
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