@Mainliner posted:Sam, you’re right, 2rail track wont handle the hi rail flanges. The wheels don’t bother me anyway.
Uh, that's not quite what Sam said. Modern hi-rail flanges will work fine with Atlas code 148; just do a search on the forum for [ all words ] Atlas 148 flange height ' or something like that. Hence, since it is easier to add the centre rail and then later remove it [ as opposed to removing the centre rail from 3R track ], if you need to buy additional track for your layout I would suggest buying 2R.
The problem with the high rail flanges for 2R is not the plain track, it's the turnouts: The back-to-back of the hi-rail flanges are less than their scale equivalent -- compare a -1 vs a -2 MTH 3-2 loco, for example -- and they won't go through standard 2R turnouts due to flangeway width at the guard rail, frog, etc. Flange depth is usually more readily solved by comparison. Both problems can be overcome with either the choice of turnout or sweat.
I hope that helps.
Best regards, SZ
