Reply to "3-Rail Track Prices!!!"

New Haven JoeOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

@rplst8 posted:
Since HO is 1:87 and not 1:96 we get a little advantage at 1:48.
A radius of 18” in HO is equivalent to one of about 32.5 in O, or O65.
Going in the other direction, O72 is equivalent to a diameter of 40” in HO or 20” radius.

Comparing the scale of a model to a curve diameter or radius is not valid. What matters is the minimum radius curve that a particular model will negotiate. This is the same in the real 1 to 1 world.

Diameter or radius are what they are. They are not scalable. Yes, you can run some HO trains on 18 radius inch track just as you can run some Lionel trains on O-27 track (13.5 inch radius). Most scale model HO trains will not go around a 13.5 inch radius curve. Scale model O gauge trains won't go around a O-27 curve either.

4/10/216:37 PM

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