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[quote]QUOTE: Originally posted by nfmisso [quote]QUOTE: Originally posted by 4884bigboy Well what do ya know. I'm going to build a 5x8 and would like to have a double track main line as well. (not with the tracks right next together, though. I've almost saved up enough for a Big Boy and need to have some clearance. Well, I don't have to run it either, but would like to.) Hmm, will 22" and 26" radius curves fit on a 5x8 layout? P.S. Yes I know running a BB on a 5x8 layout is insane! [/quote] To figure min width, in HO, take the track radius in inches, double it to get the diameter, and then add 2". So for example, 26" radius -> 52" diameter + 2" = 54" or 4½ feet. So the answer is yes, and you'll have 3" to spare on either side, which is good to have just in case of derailments - you still should put in some sort of barrier. The 26" radius limits you to 36" of straight on either side of the oval. [/quote] Thanks nfmisso! You've given me the answer I've been waiting to here the day I joined trains.com! Do you think I can put 22" radius for the inside or should I do 18"?
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