"N" Scale Models - The Specifications

To those of you that are new to "N" Scale, here are some of the Scale specifications.

We should really talk about "British N Scale";, since it is a little different from "N" Scale in Europe and the States.

British "N" Scale runs on 9mm track as do all "N" Scale Railway models. That is at a scale of 1:160. However, the models themselves are manufactured at a scale of 1:148.

Buffer height C/L: 6.79 mm
Coupling centre line above track: 4.37mm
Track gauge: 9 mm

(Since British N has the same gauge as other types of N, only with a different ratio, the gauge is obviously slightly narrow )

Wheels: Back to back: 7.4 mm
              Flange depth: 8.94 mm
              Flange thickness: 0.46 mm
              Overall width: 2.17mm / 2.3 mm

Couplers: Rapido-style. British prototype trains have historically used short metal chains to couple wagons and coaches together, and such three-link or screw-link couplings do not scale down to N particularly well - They also can't be made to operate in a realistic fashion remotely - you have to go in and manually uncouple them. Consequently the couplers used are a variation on the design created by Arnold back in the 1960s.

"N" Scale modelling has become increasingly popular as house sizes of have become smaller. Complex "N" Scale Layouts can be created in an amazingly compact space.

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