Thank you for your comments,
Wim Mol
Fred Walls
wa...@convex.com
Convex Computer Corporation.
>This seems me to be a little narrow. When I measure the distance between
>the double track made by Arnold switches the distance is 19mm and
>with the Roco switches even 23mm.
The spacing obtained by making a crossover with a pair of out-of-the-box
switches probably has nothing to do with the prototype. I think they just
make it easy to manufacture.
US spacing is usually 13' for yards and 16' for mainline (center line),
but probably varies by road also. The NMRA recommends 1 3/16" minimum
for N scale and increases for curves.
>So, if Peco is correctly on scale, is it then because of the track
>distance is related to the British prototype which is probably
>smaller than most others because of the smaller British loading gauge.
You will need usually need to cut off some of the diverging track to get
the correct width. Just find out what your prototype spacing is and draw
some lines on a piece of paper. Line up your switches and let the ends
of the divergent track overlap. Mark and cut with a razor saw or track
snippers.
I rode the train from Paris to Rome and the the tracks seemed pretty close
together.
Andy
However very long cars do have a lot of over/under hang on our much too
tight curves, and mainline track, at least on curves does need greater
than scale separation. On this, envy the G scale types. No autoracks,
piggyback flats and 89 foot passenger cars there. Yet.
Fred D.