 Joined: 27/12/2013(UTC) Posts: 26 Location: Illinois
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Hi guys I'm trying to put together a list of track I need for my new layout I am building. One part of this layout is a reverse loop. I have a track plan software that has marklin C track in it but for the life of me I can't get the loop to line up and connect. I want the loop to use a 24611 switch, other then that I do not care. Can anyone help me out by giving me a track plan of a reverse loop with this switch. After that I can expand it to suit my needs.
Thanks and sorry to bother you guys with something so simple but I have spent way to much time trying to figure this out.
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 Joined: 16/05/2012(UTC) Posts: 16 Location: Barrie, Ont.
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Hello, Does this meet your requirements?  I'm not that familiar with C track as I use K track. Gavin
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 2 users liked this useful post by Gavin
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Joined: 27/12/2013(UTC) Posts: 26 Location: Illinois
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Originally Posted by: Gavin  Hello, Does this meet your requirements? I'm not that familiar with C track as I use K track. Gavin I think so it appears that all those parts are available in C-track. Thank you so much!
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Joined: 16/02/2004(UTC)
Posts: 15,441
Location: DE-NW
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Hi! S shaped double curves with 24130 are the most difficult combination for rolling stock - not even all Märklin rolling stock can handle that. Here's a reversing loop with some straight tracks in between. H0 attached the following image(s): |
Regards Tom --- "In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS  |
7 users liked this useful post by H0
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Joined: 27/12/2013(UTC) Posts: 26 Location: Illinois
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Originally Posted by: H0 Hi!
S shaped double curves with 24130 are the most difficult combination for rolling stock - not even all Märklin rolling stock can handle that.
Here's a reversing loop with some straight tracks in between. Ok I will modify my reverse loops for that design then. Thank you
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 Joined: 16/11/2011(UTC) Posts: 5,842 Location: Hybrid Home
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Hi there, Building on Tom´s reply, here comes a more condensed and space-saving version (requiring 76 x 121 cm), even with slight easements at the beginning of curves, completely relying on R2 radius plus a short piece of straight track (24094) "in-between" in the S-curve area. I defused the R1 S-curves of the two reverse loops on my layout either by inserting only a short straight track (either 24064 of 24077) or by "counterbalancing" a R1 with a very wide radius track, as R4 or R5, instead. This works fine for all kind of motive power and rolling stocks, European and US, coaches and freight cars, both pulling and pushing. Cheers - Ak Alsterstreek attached the following image(s): |
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4 users liked this useful post by Alsterstreek
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 Joined: 27/10/2020(UTC) Posts: 13 Location: Sofia City
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Originally Posted by: Alsterstreek Hi there,
Building on Tom´s reply, here comes a more condensed and space-saving version (requiring 76 x 121 cm), even with slight easements at the beginning of curves, completely relying on R2 radius plus a short piece of straight track (24094) "in-between" in the S-curve area.
I defused the R1 S-curves of the two reverse loops on my layout either by inserting only a short straight track (either 24064 of 24077) or by "counterbalancing" a R1 with a very wide radius track, as R4 or R5, instead. This works fine for all kind of motive power and rolling stocks, European and US, coaches and freight cars, both pulling and pushing.
Cheers - Ak Hello, thank you for this useful discussion. Dear Alsterstreek I would like to try your reverse loop suggestion but unfortunately I couldn't understand the exact codes of the tracks from this low resolution picture. Can you be so kind and share the list of the necessarry C track codes? Thanks in advance.
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1 user liked this useful post by ahmetgazi
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Joined: 15/11/2009(UTC) Posts: 300 Location: Silver Spring, Maryland USA
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Originally Posted by: ahmetgazi Hello, thank you for this useful discussion. Dear Alsterstreek I would like to try your reverse loop suggestion but unfortunately I couldn't understand the exact codes of the tracks from this low resolution picture. Can you be so kind and share the list of the necessary C track codes? Hello Ahmet, I saw your request earlier today at my doctors, while reading the forum on my phone. Now that I'm home in front of my computer, I can post a useful reply ... at least I hope you find it useful  I keep a number of re-usable track patterns, including reverse loops in my library of SCARM track plans. Below are a few images of those patterns. Hopefully the JPEGs have enough resolution so that if you click on the images below to enlarge them, you should be able to read the track part numbers. Please note that all three of these patterns have a straight section of track to mitigate the S-Curve effect mentioned in one of the previous posts. The first image is an Industrial Radius reverse loop that I needed for my layout. Since C-Track does not have this radius, I had to use the K-Track Industrial Radius track (2210), along with two of the 24922 K to C conversion tracks.  This second image is the smallest all C-Track loop that I have come up with that I am also happy with. It uses mostly R1 radius 24130 track. There is one R2 24230, that matches the radius and number of degrees (30), of the 24612 turnout, combined with the 24206 R2 six degree track.  The final image is an all R2 reverse loop. This is the smallest radius reverse loop I use on my mainline tracks.  Regards, |
Rob
Mackenrode Wende Bahn |
5 users liked this useful post by rrf
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Joined: 16/11/2011(UTC) Posts: 5,842 Location: Hybrid Home
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Originally Posted by: ahmetgazi Can you be so kind and share the list of the necessarry C track codes? Here you go: 24064 1 24094 1 24115 1 24130 6 24188 3 24206 1 24215 3 24230 2 24612 1 One beauty of this approach is the use of easements at the beginning of curves, i.e. the initial track piece has a wider radius (R2) than the "main" curve (R1). This improves slightly the appearance of a train entering and leaving curves. Never mind the small mismatch between the 24094 and 24230 segments, the C track has enough slack to accommodate this in reality.  |
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6 users liked this useful post by Alsterstreek
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Joined: 27/10/2020(UTC) Posts: 13 Location: Sofia City
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Dear rrf and Alsterstreek thank you for the details. I am super happy. An economic reverse loop design would probably one of my final exam question at the Marklin Track Geometry 101 class :D
Cheers!
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1 user liked this useful post by ahmetgazi
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 Joined: 03/10/2010(UTC) Posts: 1,293 Location: Cape Town, South Africa
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Hi all I have a reverse loop which doubles back on a second line, and allows for two trains to pass each other in the loop :  Regards John
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7 users liked this useful post by Johnvr
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 Joined: 12/12/2005(UTC) Posts: 2,448 Location: Wellington, New_Zealand
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FWIW I prefer the aesthetics of symmetry. This image offers the smallest footprint for a C-Track reverse loop, however I would usually start with a base of R2's and throw in R3s for progressive lead in to curves. In doing so the "S" is further dampened and there is a bit more room for the loco storage yards (The dimensions shown are to track centre - add x:20mm and Y 40mm for the C-Track roadbed)  And then for utility ...  Edited by user 03 November 2020 20:39:33(UTC)
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Peter
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9 users liked this useful post by clapcott
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Joined: 27/10/2020(UTC) Posts: 13 Location: Sofia City
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Recently I also asked this to the Marklin service and below is their respond. I hope that it will be useful for the fellow members:
“Under Google search " märklin c gleis kehrschleife r2" many different possibilities with track plans are shown.
Some of them are only reversing loops or also with integrated sidings (staging yard).
We hope that we could help you further.”
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1 user liked this useful post by ahmetgazi
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Joined: 27/10/2020(UTC) Posts: 13 Location: Sofia City
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Originally Posted by: clapcott FWIW I prefer the aesthetics of symmetry. This image offers the smallest footprint for a C-Track reverse loop, however I would usually start with a base of R2's and throw in R3s for progressive lead in to curves. In doing so the "S" is further dampened and there is a bit more room for the loco storage yards (The dimensions shown are to track centre - add x:20mm and Y 40mm for the C-Track roadbed) And then for utility ... The second is monster reverse loop that I only can see in my dreams for now :)
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1 user liked this useful post by ahmetgazi
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Joined: 31/01/2024(UTC) Posts: 2 Location: Alden Hills, Illinois
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Can you provide a item list for the more complex (bottom image) to the right side of the turntable. I have tried with out success to get the right pieces to make the full 180 degrees of track. It measures 775mm radius. Cant see to get the math correct to make it work Thanks in advance for your help. 
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 Joined: 02/02/2017(UTC) Posts: 694 Location: England, South Coast
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Originally Posted by: Johnvr Hi all I have a reverse loop which doubles back on a second line, and allows for two trains to pass each other in the loop : Regards John ...and it works in m track 
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4 users liked this useful post by Michael4
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Joined: 31/01/2024(UTC) Posts: 2 Location: Alden Hills, Illinois
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Originally Posted by: Michael4 Originally Posted by: Johnvr Hi all I have a reverse loop which doubles back on a second line, and allows for two trains to pass each other in the loop : Regards John ...and it works in m track Thank You I will incorporate
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1 user liked this useful post by MikeG
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