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Old 05-05-2018, 10:59 PM   #1
BigTed
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Default Reverse loop isolation sanity check

Hi,

I may have the opportunity in the near future to extend my layout considerably.

Please see the attached rough sketch.

Track is black. The right hand loop is there already, the left hand loop I may add.

Then I thought I might link them up with a couple of turnouts to form a figure 8 (blue line)

So that left loop, if I put it on a reverse power supply, it's large and will easily accommodate my longest loco.

As long as I fully isolate any sections where the reverse loop contacts the default layout (red) I'll be OK right?

Thanks!
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Old 06-05-2018, 07:52 AM   #2
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There is a lot of discussion about reverse loops on the Hornby forum and one of the contributors has written a comprehensive guide to installing reverse loops that is held approval before going on as a sticky guide.

Rob
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Old 06-05-2018, 09:03 AM   #3
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To answer your question, yes - but with the proviso that only one trains can be entering or leaving via the isolated crossovers at any time, and a train cannot be using the central crossover at the same time as any of the others.

I don't know if this will help, but the wiring will be a bit simpler if you put a live frog double slip in place of the central crossover and have the whole central section as the reversing section as long as it will hold a whole train and only one train will be in it at any time.
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Old 06-05-2018, 09:42 AM   #4
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Perhaps we need the guide on here, not use the Hornby version. Iím sure Flashbang has given a comprehensive description on here.
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Old 06-05-2018, 09:44 AM   #5
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Quote:
Originally Posted by Suzie View Post
To answer your question, yes - but with the proviso that only one trains can be entering or leaving via the isolated crossovers at any time, and a train cannot be using the central crossover at the same time as any of the others.

I don't know if this will help, but the wiring will be a bit simpler if you put a live frog double slip in place of the central crossover and have the whole central section as the reversing section as long as it will hold a whole train and only one train will be in it at any time.
Thank you! Unfortunately I've been unable to locate an electrofrog double slip in oo gauge code 100.

Yes - only one train will be on that isolated section at any one time, but good point - I could easily, absent mindedly have one train following another.
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Old 06-05-2018, 09:47 AM   #6
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When I saw this post this morning I had a look at this website but couldn't find Reverse Loop guidance specifically. Here is a link to the site if anyone wants to have a go. R-
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Old 06-05-2018, 10:04 AM   #7
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Thanks everyone. I've read a few guides and Brian Lambert has been particularly helpful. I really just wanted confirmation that what I'd come up with based on what I'd learned from the guides would work OK.
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Old 06-05-2018, 11:15 AM   #8
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Itís about half way down this section.


http://www.brian-lambert.co.uk/DCC%202.html
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Old 07-05-2018, 01:27 AM   #9
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This maybe electrofrog SDG114

http://www.scalelink.co.uk/acatalog/...guillages.html
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Old 07-05-2018, 11:11 AM   #10
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The link on the web site on the DCC Page 2 is directly here if its of help? Link to Reverse loop DCC

Note that if the Electrofrog DS that Ron (Sol) has linked to and you're using point motors then the motor will need to have a self latching mechanism such as the Seep PM4 or better a Tortoise or Cobalt stall motor.
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