Gravel Road is my most recent narrow-gauge layout - built to a nominal 4mm scale (4mm to the imperial foot).
Built to strict French GEMME narrow-gauge modelling standards, the visible part of the layout (above) had to be no longer than 630mm, and no wider than 135mm.
How did I get this? Simple!
The GEMME exhibition rules say you can only build a layout that's track gauge multiplied by 70 (for length) and track gauge multiplied by 15 (for width).
As I used N-scale track, with a 9mm gauge, that means I only had 9mm X 70 (for a length of 630mm) and 9mm X 15 (for a width of 135) to work with . . .
The result? An extremely light and portable layout that can be carried under one arm. It can be set up and be operating in less than five minutes.
I cheated somewhat by making the baseboard slightly wider - behind the backscene - allowing for trains to depart from the layout to the unseen quarry.
Yet Gravel Road tells a story - and provides a reasonable amount of operational variety . . .
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