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Reply to "5X12 S-FASTRACK BUILD IN PHASES: with 4% Grade & 2% vertical easements, and hidden staging. WITH SIMILAR O and S 5X9 LAYOUT PLANS."

Relationship between S and O:  S-dimension* 64/48 (1.333) == O-dimension

S40/R20 curves are the equivalent of O53.33 (about O54).   S54/R27 is the equivalent of O72.

The 5x12 S layout is the equivalent of 6'8" x 16' in O.  

I have not constructed an O layout that large (nor any smaller scale.)  My largest previous O layout was 6x12.  I did have a larger G gauge layout in the side yard 19 years ago, long ago taken down.

Last edited by Ken-Oscale

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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