 Joined: 02/02/2017(UTC) Posts: 694 Location: England, South Coast
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At this time of year my mind moves to thoughts about changing my layout...
My question is:
Using M track radii of 5100 and 5200 and a helix, does a helix gain sufficient height in a single revolution to allow the use of standard M track catenary?
My locos are old and heavy, the trains are normally made up of three tinplate carriages, not much more so a steepish gradient is useable.
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 Joined: 15/12/2005(UTC) Posts: 3,594 Location: Spain
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It´s a bit harsh, but vintage Märklin should be able to do it.
There are two "tricks" that you can apply;
1) Make sure that the UPgoing round is using the 5200 curves.
2) Use a cut-up N-scale flextrack as catenary, stapled to the underside of the helix floor. That will allow you to minimize height between helix levels. |
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Joined: 23/07/2014(UTC) Posts: 8,481 Location: ENGLAND, Didcot
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Originally Posted by: hxmiesa  It´s a bit harsh, but vintage Märklin should be able to do it.
There are two "tricks" that you can apply;
1) Make sure that the UPgoing round is using the 5200 curves.
2) Use a cut-up N-scale flextrack as catenary, stapled to the underside of the helix floor. That will allow you to minimize height between helix levels. Another trick to get a little more height between turns, or to lessen the grade, is to make the helix slightly oval. Have two or three 5106 straights each side to just extend it a bit like the Marklin C track one in the last link of TEEWolfs post over in TheWolfs thread.
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Joined: 02/02/2017(UTC) Posts: 694 Location: England, South Coast
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Thanks for the helpful suggestions. I can see the value of making it an oval but doubt I have the space.
Next question: Has anyone made drawings of the components that I could use? Cheeky I know but I'm a lazy old .....(insert as appropriate)
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