Reply to "Track Spacing Between O Gauge and Standard Gauge."

SGMA1OGR Forum Member

The center-to-center spacing of STD72 to STD84 curves is 6-3/16", and STD72 to STD87 is 7-1/4". As Rob mentioned, most pre-war trains will clear on the closer spacing, but many modern era standard gauge trains will make contact. USA Track LLC introduced STD87 curves to eliminate this problem, and STD87 curves are required on the outer loop of Standard Gauge Module Association (SGMA) modules.

Kirk

USA Track LLC

7/3/199:40 AM

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