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Double Helix

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  • Member since
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Double Helix
Posted by edmedbay on Thursday, May 17, 2012 2:05 PM

Does anyone have a plan fo ra double helix using O 31 gauge track?

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  • From: Centennial, CO
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Posted by Stourbridge Lion on Thursday, May 17, 2012 7:03 PM

edmedbay - Welcome to trains.com! Cowboy

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Posted by balidas on Thursday, May 17, 2012 7:44 PM

http://cs.trains.com/TRCCS/forums/t/166366.aspx

 

This thread may answer your question,.

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    March 2012
  • From: San Diego
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Posted by overlandflyer on Saturday, May 19, 2012 7:54 PM

from Nov 1955 Popular Mechanics...

sorry about the quality, but this was a tiny ad to begin with.

not sure what degree the curves are.

cheers...gary

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Posted by gunrunnerjohn on Sunday, May 20, 2012 1:48 PM

That helix with O31 track would be very steep grades!  That figures to be about 6% grades, you won't be running anything long up that kind of grade!

To use O31 in a helix, you're going to have to consider an oval to reduce the grade to the 4% range at least.

 

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